Phoenix Gold MS-2125 Amp Dyno Test Old School

[@chanceatherton575]

In '93 or '94, I was working at a shop in Western KY. We were all members of Team PG. With two of us in their advertisement that year, we thought we had a little 'clout' with the company. One of our customers wanted to run 2 sets of 3 JBL 1500GTi's on a MPS(MP?)2250. When I contacted Larry Frederick at PG, he put me in touch with someone in the tech department there. After bouncing back and forth over a couple of days, he told me that they would try to modify one of the amps to see if it could handle that kind of load continuously. Eventually he sent me two of them for my customer, and informed me that they were going to keep a 3rd for more testing. He told me that they found some interesting things going on with the power supply at that kind of load. I don't know if this is a later amplifier, but if they did find some improvements with the differences in the power supply, that may explain why that is the load where this amplifier made 'maximum power'. The customer passed away before the truck was finished., but we got it operational for his mother in time for the funeral. Shortly after we finished as much as we could on the truck, she allowed us to compete it a few times, maxing out at 153.4dB. Not bad considering that when we did this, the world record was somewhere in the 155 range. I do remember the formula we used when checking these amps out. It was voltage squared, divided by resistance. I know that speakers are a dynamic load, but we didn't have the capability to measure the resistance of the coil while running a load through. I do remember that, using that formula, our MS-2125 was making in the neighborhood of 1200 watts, on our sound board. We used a Pyramid 40amp power supply, with a 1farad capacitor to 'stiffen' the power supply. That was a LONG time ago. Thank you for helping me remember the good old days. Makes me want to dig up some of the old stuff I still have in storage, including a MPS-2240, an M25.

[@wal]

Awesome story, thank you for sharing!

[@lloydb248]

Ah the good days... (sigh) that's a great comment.. Here I sit today at my dining table staring into my 2125 that's had about 3 months use before it was reboxed after blowing a cap... But your message reminds me of our days back in 93-94 I had a mate running 2x GTi15s on a single 2125 in his Mitsubishi Galant and of course a heap more gear mostly Apline... I had my 2x 2125s running 2x LS18 Cerwin Vegas and a bunch of 3549s and 3555 Alpines bringing up the minds and tweeter.... Aaah the memories....

[@ericsantiago6832]

@@lloydb248 yes the Alpine amps from the 90s were the best for mids and highs and they were handled 2 ohms and we're very reliable for hours of play

[@jameslewis974]

I was using the ms2125 to power 2 sets of components and I had a 4th order wall in my civic hatch with 2 directed comp x15s one directed 1100d for each sub and on my way to me a nationals I had a isolator fail that was on 2 stinger spb 1000 amp batteries and it fried my bass amps usually I would do a solid 155 but I'm like fuk I have to run ms2125 on my subs cause I'm here at nationals and there is no shops in area that's carried amps like that but I ended up putting a 152.8 up and I was like wtf? Of 250 watts and I ended up taking 2nd place in pro class in that wattage class one guy was like how did u do that I was like I dunno lol I knew they put out more power that 125 watts a channel but didn't know they would break 1,000 rms so I basically had half the wattage which is pretty much dead on for losing 3 db

[@jameslewis974]

Oh and btw I'm looking for a white ppi Sedona 500iqx if anyone has one for sale that was the first amp I ever bought and I didn't even have a car yet I just turned 15 seen that amp local shop had it on sale I paid on it for like 3 months and I had a 2 foot long amp before I had a damn car I paid twice what I paid for the amp than I did my first car lol 2 years later at 17 shop seen my work and I was working there was mecp certified at 18 and last 5 years of my car audio career competing I was on team Gates and for those who knew about her but never had to amazing experience of talking to her and being her friend let me tell you absolute nicest caring person I've prolly ever ment when she heard about my uncle being killed in a freak accident unloading a trailer first day on that job didn't even have all the papers signed I got a letter from her she paid for 2,000 dollars of funeral cost and wrote a check to my uncle's son who was 15 and lost his mother to cancer the previous year for 5 ,000 for college at spring break nationals in Daytona in the 2000-2001 season me her And a few others got together I asked if she wanted to go to dinner later she she says sure we're we going I said I dunno she's like let's meet at Hooters at 8 I said what? Are u Serious her reply ( their just tits I got em too) lmao amazing women R.I.P Alma the GOAT! And btw she was 67 when she said that lol

[@Vid_Master]

I have this amplifier in my current setup, it is great and definitely puts out a little more power than it is specified for. I feel very lucky because I bought this amplifier from someone for 75$, it was dirty and the paint on top was chipped but I just repainted it (that was a pain cause of the dust and junk in between the fins) I opened it up, the inside is so clean. Very nice amplifier!

[@russellkinder5130]

Possibly my favorite competitor amp from the 90s. At Kicker, this was the benchmark we were looking to beat, in sound quality. Top notch sound quality, and very advanced protection circuitry, too. Made me up my game quite a lot, as the Kicker amp designer.

[@wal]

Great comment, thanks for watching!

[@deezsquuezeorg]

Do the ZR kicker old school amps meet or exceed the pg amps? did you have a role in that kicker design?

[@russellkinder5130]

+Anthony Vasquez, we thought the PG amps had a slightly sweeter mid/treble, but the ZR has tighter, stronger bass/midbass. I was the circuit designer of the ZR, ZX, si, and ss amps. Also, I liked the overcurrent operation in the PG amps. Caused me to totally redo this section of the Kicker amps.

[@frg33133]

@@russellkinder5130 azad

[@Bodrumbum]

In 1992 I built a E30 M3 from the ground up and it became the very first Dinan E30 M3 with full Dinan package, stage 3 engine rebuild, GTCC group 5 suspension and 3 piece Dinan wheels and a host of upgrades everywhere, What was missing was the sound of the stereo system. I contacted AMS stereo in San Jose, CA and after many days of consulting, we decided on a set up using this AMP for the sub woofer (Valedyne sub) and MB quart separates all around the car. We used 1 MS-2250 and 2 smaller matching Phoenix gold amps for the rest of the system. Each of the smaller amps ran the left or right side of the vehicle. To this day, I have not heard anything that could come even remotely close to the quality of sound that the system produced. at any price! I miss those days...

[@FirearmTutorials]

They don't make them like this anymore. I miss the car audio gear from 90s.

[@wal]

+FirearmTutorials .com oh yes, the beauties of yesteryear 👏

[@ThreeDeeIcon]

I Agree 100% Phoenix Gold, US Amps, PPI Art-Series, (Original Orion, Fosgate & Kicker Not the new bs) Miss the 90s...

[@reggyvoorn7541]

I've had this Amp with a box filled with 2x JL Audio 12W4 and Boston 16,5cm and the 13cm pro speakersets on the Phoenix gold M44 OMG this is like 27 yrs ago 🤠🤙🏽💯

[@philliphaessig]

I had one of these brand new back in 95/96. I and everyone in the stereo world around here was in love with it. That is when I had to install a car alarm.

[@wal]

Oh yes, thief magnet

[@adambrotherton4382]

I recently picked one of these bad boys up and am looking forward to getting it running. Being a previous owner of the MS275 I'm excited to see what this one can do. I have done some reading and there may a problem with the caps being tired being such an old amp? Is this something I should be concerned with? Is there something I can do test this? Any help would be awesome. Keep up the vids I love em.

[@harryberry474]

It's highly recommended to replace the 12 filtering Caps on ALL old school Phonix Gold amps and Not just the MS/MQ series either.

[@ibesp]

Man back in the day i ran 2 of these pushing 4 12 soundstream "spl" subs in a fouth order bandpass box. I miss them.

[@diggityd77]

thank you for this dyno! i have 2 of these amps pushing 2 pbx 15"s and 4 ohms each amp. Signal coming from a alpine head unit to a audio control 3.1 and then thru a audio control epicenter. they move every panel on the car immensely all day with no issues. Always wondered if the amp ratings were correct since I'm only getting half rms power my subs are rated at.

[@audiofanaticz]

Nice amp, one thing you have to remember back in the day when competitors used this older gear, the competition formats had slightly different rules. Like db drag was capped at 80hz, and now I think its 60hz max frequency that you can burp or DQ. Back in the day they said you could only use a disc for your frequency but no frequency cap was established, and some of these competitors used things like tone doublers for guitars to turn that 80hz test tone track from the cd into 160hz, and sometimes even higher depending on the pedal you used or how many you used, and the sensors back then where just mics so the meter picked it up as a legit score.. It technically wasnt cheating either, but wasnt the stand up way to go about your business I guess you could say. LOL

[@wal]

audiofanaticz Good info Brian!

[@UnderLoK]

There you go, you need to tune higher brah

[@DeeZaster76]

audiofanaticz When I started competing back in 1996 the first shows were the Phoenix Gold Slam Jam SPL competitions and had not many rules at all. Basically you could have one window down, mic had its own stand and would be placed on the seat, your choice either driver or passenger. Test tone makers were forbidden, you must have used a CD with those test tones or any type of music you wanted. One guy used Shania Twain hah. There was 3 power classes 0 to 200, 201 to 400 and 401+. I was in the 0 to 200 with a PG ZX500 and 6 12inch XS124 and hit 143.9dB but I was using just a regular bass track, test tones at 55hz was best in my car. They did do some Outlaw but it was for fun, it never was recorded and mic placement was ideal and a door open which hit 149.8dB on the floorboards at 55hz. In 1997 rules started getting hardcore, dB Drag Racing came up to Canada, you were forced to use headphones, everything was sealed. I got bitched at for having one very small rust hole under my passenger seat that was covered by carpet at that time. At the 1997 Slam Jam finals someone didn't want me competing due to wining all shows I guess at that time and all the judges were inspecting everything on my car, they even told me they had reports of a hidden panel I'd open while competing so they were laying on the ground while I did my 30 second turn. Then at the next dB Drag Racing this guy went directly to this spot and bitched me out about it and said I had to fill it in next time or a DQ (which I did). Anyways what was said at this dB Drag Racing qualifier was that people were even changing out the air in their cabins to get better pressure made, so that was illegal, no blowing off explosives in the cabin, no sand bagging doors or windows, the mic was placed off the dash at a measured distance, and previous things I mention were rules now as well. Those are most of them that I can remember from back then. 1998/99 rules is when I stopped going, they completely killed the wattage categories in dB Drag Racing, Slam Jam was dead in 98 (no more $200 a show for first place after 96) and now went to surface size total of your subwoofers which I think killed the fun in it for me. One guy running a killer 10 inch with thousands of watts and a completely solid wood interior would hit 160 to 170 consistently. One day I might try out again, I never did finish my 12 x 12" PG XS124 upgrade in my 83 Corolla sedan. I can send some pics of how I fit all those in the back seat area if your interested.

[@clearme2]

DeeZaster76 I d love to see your old setup if pics are available

[@drewdoestrucks]

When this equipment was new there was no frequency restriction. As someone else said, almost no rules at all. In fact, when iasca started passing their rules about mic placement, closed cabin, etc, people started talking about “legal” spl vs “outlaw.” USAC had fewer rules for longer. Then Wayne came along and set the cars up head to head with dual mics and db drag absolutely took off in the mid to late 90’s. Rules became a little more standardized. A little. I still remember the vehicles sealed up so tight they started putting xlr mic pass throughs in the windows and doors. Then they found at least one competitor was running voltage to the connector to “spike the mic” and that ended the pass throughs. I actually kind of enjoyed that time as the rules started to develop. Watching very smart and creative people try all kinds of solutions to maximize spl, both legal and illegal, was very interesting. People had secret doors that opened in floorboards, people tried mechanically powered subwoofers, and every kind of box from transmission line to 4th order bandpass and even waveguide. Several vehicles experimented (with great success) with higher voltage equipment (I believe linear power ear candy was up to 60 volts or so). Honestly always been surprised that’s not the direction the industry went in. Anyway I’m rambling. A lot of old school guys, including Wayne, used to use “flash dance” to compete to. Full range, full volume. It was awesome.

[@DeeZaster76]

Hey, I really enjoyed watching your videos doing these test. I have a question, do you think if this amp was brand new, would it possibly bump up your 1.1k test to that 1.25k? I know some of those components age and many people replace caps from these older amps.

[@Kuyper87]

@BigDWiz . Have you ever tested the 40hz track on 1.33 ohms? And what power does it make? Thanks 👍

[@iceman45ification1]

Hah!! I was almost spot on with what I said it would put out! In real-world watts that is. Still, everyone swears by how sweet these amps sound and you can't get passed the fact that it's a beautiful, well built, US made machine!!

[@Avaddon911]

Danny Caballero it's a pretty good Korean made amp. I have a cfa402 and a cfa202 they're built like tanks and they have good clean sound.

[@OlsonKustomWorks]

I ran mine with 3 W6s, all ran in parallel. 1 ohm load. big ported box. brutal.

[@braddfordy]

i ran the same setup jl w6 10s

[@Trad-Am]

Had one in 1994 pushing 2 Jl 12W6's it definitely hit. Car got broken into, otherwise I'd probably still have it today.

[@Trad-Am]

@@ElectronicMusicUnderground New from Lynnwood Car Toys.

[@Trad-Am]

@@ElectronicMusicUnderground : I went through a few ms275's mps2240's, then settled on the ms2125. I remember them being so stable, you could damn near weld with them. Pretty sure I was running altec, components off an alpine 3553. I also had a buddy at car toys, but he was a sales guy, instead of installer that got me stuff at cost. Still got a later PG zx500, that I'll be sticking in my Crew cab duramax, when I get around to figuring out what will fit under the rear seat, but still sound good. Jl is too much $ now, not like it was back then. Looking into a sundown lately, haven't installed anything really in 20 something years though.

[@Trad-Am]

@@ElectronicMusicUnderground: Oh I almost forgot all the trips over to 220th, and pick up different audio control stuff 4XS's, 24XS's, etc.

[@johnhester922]

Omg, I had two of these turned upside down and butter together with plexiglass over them.One powered 4 12inch extreme woofers in bandpas s enclosures.insane!!!!!

[@wal]

+John Hester awesome 🤙

[@Ronco160]

I love the silk screen plexi on the back. Beautiful amp for sure!

[@wal]

Ronco160 I have a high resolution scan of this plexi if anyone needs it. Thanks for watching and for the comment!

[@MW-sw7so]

Above the left speaker terminals is the same Made in the U.S.A. hand gesture Audio Control uses, did Audio Control have a hand in making these?

[@johny1588]

These are beautiful. I know because I own one personally. Infact I have a grey version which are far more rare. I may actually part with it for those that are looking to own one of these beauties as a peice of history!

[@mannine99]

I had MS275 back in days. It did not felt that strong. Sure it was an beauty!

[@67earv]

One of the best if not the best old school amplifiers, definitely the best looking ever!!!. I'm the original owner of a Phoenix gold MS2125 and a M44 that I'm about to list on eBay!!

[@wal]

Oh man 😮

[@georgeelve1058]

I was just reading about these amps again and they were testing dynamic power at 100 hz. I owned an ms2250 back in the day and I want one again because it would be a super clean front amp.

[@bondalero0074]

I feel the same way about my 80’s HiFonic’s “Cyclops” (100 watts x 1) and “ZEUS” (200 watts x 1) mono block class D amplifiers with built in crossovers made in USA by Zed Industries back then an unstoppable force!#🔊❤️🐐🔥⚡️✨🤘🏻

[@ericperry72]

man I miss my pair of these. ran them on 4 soundstream spl160 12" subs in a 4th order bandpass box. I also had the m100 running a pair of canton 8" midbass drivers and a set of 6.5" canton coaxials all in the rear and a PPI A600.2 powering canton 3 way set in each door with the 8"midbass...all in a 1989 tbird sc. man talk about sql and headroom...sigh. I need to post the videos of that car.

[@johnregister6437]

The spl 160 was a 15 inch sub

[@AnonymousUserDawg]

One thing to keep in mind is, those "1200 watt" ratings were guesstimates, from what I could read. Another thing is, the impedance of two 4 ohm drivers may be rated at a vague 4 ohms each (2 ohms parallel), but the actual DC resistance (known as the Re in the T-S parameters) is usually much lower. Somewhere around 3.2 ohms to 3.6 ohms when measured with a ohm meter. That's why your test of 1.33 ohms worked the best. It simulates the same load as actual impedance of two coils wired in parallel will put on the amplifier when it's playing music. E.G., 3.2 ohms of DC resistance (Re) divided by 2 (2 speakers) works out to 1.6 ohms reactive load. I'm guessing the AD-1 uses dummy loads inside which can't simulate variable resistance (a.k.a. impedance). Verify that with Tony D'Amore, but I'm guessing that's why he put such "odd" numbers (opposed to 4 ohms, 2 ohms, and only 1 ohm) for the loads.

[@UnderLoK]

They put the odd numbers in so you can get closer to 1 ohm without tripping the amp into protect or in the event that you know 1 ohm will fry it or in this case to find the sweet spot (TLDR flexibility).

[@briankenny6822]

Had this bridged to to 15w6’s in an 80’s Camaro and it was ridiculous

[@wal]

👌😜👍

[@HifiVega]

Do you remember how many amps this pulled?

[@wal]

hifivega It pulled over 100A at 2 ohms mono, but I can't recall the specifics of the other ohm loads

[@HifiVega]

Wow I will have to see how 2 of these do on my current electrical setup

[@victorlambertt4662]

Back in 1995 that was my first amp on some jL woofers good old days

[@OlsonKustomWorks]

Now that Altser has passed away (suppeerrr bummed), who do we send these into for recaps? I have 3 2125s i need done. I LOVE my PG stuff.

[@ihavenocluewhatoput]

Steve meade just posted a link about this. And ooolllddd schoooolll throwback. Y'all both rock!

[@wal]

Yeah I noticed. SMD da man!

[@WouterB76]

Good for you knowing it was in Dutch language big D!

[@mrjoseywales007]

I still gata set of these amps😎2125 amp ran 4 kicker 12s nice.and a high amp ran the doors and dash speakers off the same brand crossover and preamp.

[@jermainephillips5179]

I remember pg used to be top shelf of amps.i always drooled over owning a ms2250.its disappointing to see this 2125 put out low numbers but I guess it was up there back in the day.got a m50 tucked away myself lol

[@ericsantiago6832]

I believe that particular amp was a display model pretty cool

[@TheAmpLab]

That thing is beautiful!

[@wal]

Thanks! It's one of my prized amps

[@edgu71eg]

Yed yes yes! The best amp i ever had back in the 90s

[@wal]

+edgu71eg drool amp for sure 😬

[@edgu71eg]

BigDWiz people are dogging it But for the time it was rated at 250wats at 4 ohms( i think)] but i had it bridged down to 2 ohm. It's when the term cheater amp came out. I got 2nd place many times in spl contests btw Good stuff anyways

[@ihavenocluewhatoput]

Al I need is a 600 or so watt amp for the 10 inch kicker that is collecting dust in my room. This would be perfect. At least now I know how to wire up a sound system correctly, unlike the rigging I had set up 6 years ago in my jeep. It bumped hard af though.

[@ilandman4evr]

Great test I love PG amps! I have a request D I saw in another vid a box for a PG ZX350 amp Dyno it please. I also would love to see a ZPA 0.5 make a dyno pull. Keep up the great work!

[@wal]

t adams I sold a ZPA 0.3 a few years ago to a guy in Tailand. I'll test a 0.5 if I come across one, but going to try to spread out the mfg's I test as Orion and Phoenix Gold have had several models tested thus far.

[@Kuyper87]

Well thank you very much! Got 2 of the gray oldschool bad boys right here, so now i know what they can do! I'm impressed Thanks!👍👍

[@wal]

o kuyper Other than the Orion 2100 HCCA, this has probably been my most requested Amp Dyno test. I have several more that are very interesting, so stay tuned!

[@Kuyper87]

Dereck BigDWiz yes sir, I'll keep tuned for more. love the oldschool amplifiers you're showing, and especially the ms-2125 today. thanks

[@sambucci8544]

On your Facebook I almost put 650@2 ohms. It's a beautiful amp.

[@wal]

Sam Bucci I was impressed at the 2 ohm results, knowing the marketing material was bloated for no good reason other than to sell amps

[@minitrucker8835]

Got a Frank Amp N Stien #79/300. The ms2125 side of the amp I swear is more like 700 w @2 ohm.

[@moejaassen]

I saw one of these recently for sale on FB, and the seller was claiming it was a 1/2 Ohm cheater(they had a MS275 claiming the same 1/2Ohm)... Do you think this would be at all possible on this amp without it blowing? If it could do 1/2 seems like it could be pushing 2k

[@wal]

Sellers claim a lot. Even PG’s marketing claimed a lot back in the 90’s…

[@BassheadGTP]

This is not an old school stereo related question, more new school, but... Id like to know, what do you think about the "X14 Hifonics Brutus 1500.1D"? Also nice P.G. amp and great vid as always BigDWiz.

[@wal]

BassheadGTP I'm not an expert in the newer class D amps, but based on what I've seen, those amps do close to rated. Sorry I'm not much help here.

[@chadro_g1145]

This would have been more if it had been "re-capped". You can tell by those blue caps that it's not been done. These are way old at this point, and we don't know the life it's led up to this point, so they could be really really weak by now. I know in a MS-275 I recapped about 10 years ago, the amp would have been ~ 20 years old at that point, that little thing really woke up. I ended up doing the same thing to a M-44 I had at that time and got a noticeable increase as well. I had two of these in 94'. I ran one at 2 ohm stereo and the other at 1 ohm mono. I had fans obviously, but those ol' girls never let me down. The 1ohm went into protection after ~ an hour of hard use. Let it set for about 10 minutes with the fans going and she was right back in the fight. I ended up selling them and bought a Route 66 and a Son of Frank from a guy that worked at the shop who was getting married, about to have a baby, and really needed the money quick. Oddly enough, It always seemed like I went down in power, but it did sound just a bit cleaner with the Route 66 on mids, mid-bass and tweets. My RTA graph improved a bit too. Ah, the good ol' days of being 22, newly single, living at home, 3 bills to pay, the rest I could spend on my car all while making killer money driving a beer truck for the local Anheuser-Busch distributor. Then I got married and history repeated it's self and I sold everything to get home audio/video stuff, lol! Years later, I got back into it, started out with the JL-Slash series amps, which are great little amps for the money (just as his tests indicate on this channel, but just as the tests indicate the power supplies are regulated so what they make is what they make, no ohm-load magic to be found). When I found the right amps for sell I bought old school Phoenix Gold as I could. I started with the M-44, later recapped, and then got the MS-275, later recapped. I eventually found 2 MS-2125's in need of a new home so I sold the MS-275 and M-44 to a co-worker who fell in love with how my Trailblazer SS sounded (I was still a Boston Acoustics guy and was running 2 x of the newest (around 2009 -2010) Boston Pro series 6.5 and their accompanying tweeters all with neodymium magnets all up front, and 2 X original from 94' Boston pro series 6.5's in the back doors, with 2 X Boston G210-44 (silver dust cap variant) and 2 X Boston GTR10 adjustable passive radiators (silver caps again). I tried to tell him that a lot of the sound came from my Alpine, he had a Kenwood, My Pheonix Gold Eq230, he didn't have an eq of any kind to help shape his curve, and the way my Boston's were voiced, he was running a mix of Pioneer Premier subs and Alpine mids and tweets. But, he though it would still sound as good despite my warnings, so, I sold those amps to him. I replaced the amps with my newly referbed MS-2125s. That all stayed in the TBSS until I sold it and got a crew cab truck and didn't bother to put any of it back in as room was more of an issue and the stocker was pretty damn decent. It all sat around until my son was old enough to drive and they've all been serving him faithfully since, almost 8 years now. I told him that he was just using them and they belong to me lol. If they ever go anywhere else, it's to one of his kids or it's straight back to me. I guess I'll never grow out of it, why would I want to.

[@wal]

👌😬👍

[@stevenking2980]

Another great vid big D!

[@stevenking2980]

Do you have the ability to do a frequency sweep? That's the proper way to get the real output. Frequency sweep generator, I have one on my iPhone. Nice video!

[@wal]

Steven King The Amp Dyno measures wattage at 40Hz and 1kHz, but the AMM-1 will measure using any sine wave tone frequency. Currently, I measure 40Hz and 1kHz, but usually rely on the 40Hz numbers as 1kHz is much easier on an amplifier. 100Hz may be a test I perform in the future as well, just for comparison.

[@stevenking2980]

Gotcha, strange the Meade dosent have a sweep. No matter, you do excellent work. Excellent videos. You just need to show off those Carolina colas some more! Like the new case you got for the dyno! Steven

[@stevenking2980]

Just had an idea! Can you download sweep a sweep generator on the iPhone, and input the signal to the test amp, then the output to the dyno? Then do a full freq sweep from say 4 to 20,000 hz?? What do u think? That will show the full potential of the amp at all cycles?

[@wal]

Steven King I have the tone generator, but the iPhone is not a good source for amp testing...output voltage is low and THD is high (relatively speaking). The sweep test sounds interesting, but 40Hz and 1kHz are how I'll test for now...one day I may get an Audio Precision One, which will allow me to test much more than just wattage output. Stereo separation, damping factor, etc. These tests take long enough now as it is...

[@wired199]

Had a customer back in the day , had FOUR of these running FOUR JBL GTI 1800's 18" subs in a 6th order bandpass box in his car. 151db first day

[@wal]

wired199 Wow, what a setup! I always wanted a pair of the 1500GTi's back then. Crazy efficient and clean!

[@wired199]

First and Last BIG system I did back then , nobody had heard anything like it around here. Got some books I might can seed you r.t.t.i. ring a bell ?

[@wal]

wired199 RTTI, YES! I have a few of them, looking to fill the OSS library with the full set. I have a couple scanned and posted in the OSS FB group as well. What year do you have?

[@wired199]

1990-1991

[@wal]

wired199 I think I have 1991, but will check

[@Omargarci4]

So beautiful amplifier ,

[@Washburn-rr5eh]

Very impressive looking circuit board!!!!

[@toddwest4618]

Can you run a test on a Power Acoustik Bamf 4000.1 really curious to see the results. I have this amp and it seems to be pushing the xmax of my sub to its limits. And the sub is rated for 2500 rms. I'd like to comparisons on different voltages and loads

[@Thewiz666]

What rating/spec are the big fuses at the end of the rails inside?

[@In_Need_of_a_Savior]

We did 12 Punch 12's of one of those back in the day in a Ford escort. The thing would pump the mucus outa your lungs and you couldn't see. I think he ended up doing something like 154SPL

[@jeremiahhodge7723]

Big d i have a old school amp it says 1200.1 Phoenix Gold titanium. I cant find n e manual or comparison. I paid 1100 for it like 18 years ago place i bought it from said it was a demo and didn't want to sell it. It messed up once due to installer being stupid i aent it in and it was fixed for free. Said its guranteed for life. I was young when i bought it and didnt bother even asking for a box. But what do u think. I have it on 4 12 L7s and i dont k ow what its wired to its terminals are hidden cuz box is built over the amp and can only breathe i dont want to mess it up. I seen u had a similar amp but it was a off road?

[@trucavalier]

Awesome vids as usual.

[@wal]

Thanks for watching and commenting!

[@SubwooferKing100]

Was that you rapping in the beginning lol? And btw that's a beautiful amp! I love how it's gold plated

[@wal]

Lol, I can't take credit for the song. That's Otis McDonald provided by KZbin. The amp is a work of art for sure. If I find one that can't be repaired, I'll just use it as wall art!

[@nerman107]

is a punch 800a2 still a good amp if i can find one?

[@wal]

Yessireebobbie

[@No-pl6nx]

That's beautiful

[@davidperry4013]

It sucks that Pheonix gold no longer makes those premium amplifiers anymore. Pheonix gold at one point actually made the best sounding Class D amps in my opinion. It's almost like a cross between an AGD Audion and a Pioneer SX1980.

[@peloteroification]

What a beauty.

[@ianm432]

Why did I get rid of mine!? Dumb things we do at times...

[@gbierba1]

Man I've been thinking about the old Phoenix amps lately and trying to google a video of one of the old display models but can't find it. Does anyone remember the "weld test" display? I worked at a stereo shop and they brought us a display that was a two pieces of L metal butted up to each other and the metal was one side of the speaker output and you could literally take a wire on the other side of the speaker output and "weld" (melting the speaker wire to the gap between the metal plates) using the amp's power without blowing it. I am pretty sure the M44 I still have was the display model from that display. :)

[@DR.ELEKTRIK]

That "Made In America" is awesome! 🇺🇸

[@flashzoe]

Do you still have this amp ? is it for sale

[@SoundBarrierEntertainment]

where do you get this dyno tester, and what is that hand held tester

[@wal]

www.damoreengineering.com , look at the AD-1 and AMM-1

[@jamest.5001]

that is a beautiful amp! they should do stuff like that these days! I know it seems like nothing. compared to the 10kw and up these days. but sub's didn't need all that back then. a 500-600 watts on a sub was kinda good. then . 92-95 db at 1w/1m sensitivity . didn't need 2kw per sub! but hey.. I'm not knocking it. I'd love to have 2-3k on a pair of 15" subs... or 5kw. oh yea!

[@wal]

Times change, not always for the better. Back then amps were expensive, nowadays amps are cheap, but you need more wire, bigger alt, extra batteries, etc. See who’s winning at this game?

[@jesd319]

i had the ms2125 running bridged to 2 kicker 12's back in the day had it for maybe a year before everything was kidnapped out of my 81 grand prix so sad mine didnt have the plexi i had to buy my own plexi to show off the gold

[@motorax.service.motociclete]

gorgeous

[@lukejones7366]

You should check out an xtant 121m. That thing would bump with enough batteries to feed it

[@thephoenixgoldkid381]

Love this amp

[@LifeSized101]

Can you buy the phenix gold 9ga speaker wire any more, I'm down to 3 ft

[@muggumfuggummuzik4262]

Hey you have some dope tracks

[@brinkbuilt101]

I had almost this same amp. Mine was definitely a little smaller. Anyone know what model mine could have been?

[@SoundBarrierEntertainment]

How much amperage can your power supply produce.

[@wal]

320A at 14V...I'm working on getting a battery bank so I can support even more

[@SoundBarrierEntertainment]

Yes, thats what i was just gonna comment on how much the amps can do. Maybe 3 deep cycle batts @ 800 cca with a nice little charger on will read. Quite different. I use to do this many years ago and could not find (or afford) to produce enough input amps off ac/dc conversion. May try a couple cheater amps again and see if the value increases. What the amp can suck out in amps can produce in watts. THANKS FOR REPLY. i kinda left the car audio world and went into live sound! Really like your channel and will be following forever!!!

[@jasonneal]

Yeah, these amps were built for sound quality

[@NoRadio-s8u]

i have a nexus jaguar 550 i would love to see it dyno test where can i ship it

[@boogiemantv7357]

I like this guy I would like u to do a dyno on a gravity 8 k please

[@joshuabaker2292]

Does any one have any info about running this Amp at 1ohm using the Fan connection on the circuit board to get ? watts output. I'm don't recall where I got this information or if it's possible. I have noticed this connection label "FAN" tho.

[@ericperry72]

have those amps been recapped? at that age...they should be and then re tested.

[@adambrotherton4382]

Any more info you can share on this? I just picked one up and would like to avoid setting my vehicle on fire lol

[@ericperry72]

Adam Brotherton yes. with older equipment you should check it have the amp checked for our of spec components. capacitors can begin to like after so many years. having those checked and properly replaced if needed. any decent amp repair shop could give it a good once over

[@davidstevens7809]

The mtx ta2300 thunder kicks its ass.

[@wal]

Yeah sure does

[@davidstevens7809]

That was really rude of me . Larry was a good friend..and I must have been really trashed to say such ignorance..im sorry..ill be more respectful on your page ...

[@jasonjackson329]

is there anyway you can do a amp dyno video on a bostwick da1200hc

[@wal]

Hi Jason, thanks for the comment. I test either what I have available or what I borrow from friends. Don't have this specific amp, but you never know when I may come across one!

[@donpepejvb75]

I have this same amp in my closet collecting dust. Think I'll put it for sale on eBay , wonder how much I can get for it?

[@gen-X-trader]

i've had a couple of these and currently have a zx450 doing mid/tweet duty in the daily. two points for anyone new reading this #1 if you get any of the old phoenix amps. recap them. it's mandatory. if one shorts it will smoke the amp and possibly the speakers connected. #2 if you see what these are going for on ebay and wonder why they are so expensive per watt and also require being rebuilt to run. it's the SQ. they sound great. they sound hi fi. night and day different compared to modern class D

[@martyzuno4807]

Bad ass amp Oooooollld school

[@Aaron48219]

Dude....get a cyclone! I need to see you test one!

[@wal]

That would be cool

[@floydafflick2871]

I have never see a dyno test on a old school mono block eclipse amp

[@jasonwarbird]

I like my amps like my women, cheap, puts out and handles a big load.

[@keithfaulk5825]

I have two phoenix gold tantrum 1200.1 figure you may be interested

[@bassboyful]

Hi can you please test the mmats 3500.1 amp

[@wal]

+Don Davis I thought Meade tested that one?

[@bassboyful]

BigDWiz I think he did the 2000.1

[@normalicy]

I've gotta admit, after all these years, I'm kinda disappointed. Not that the amp did poorly, but I had always been led to believe that they did higher numbers. Funny thing is that we sold these at our shop, but I never personally got to install one. Rockford was WAY more popular.

[@wal]

Mickey Pietrzak The Amp Dyno has known to break a lot of hearts, but based on previous tests of dream amplifiers, seems to me this amp performed pretty good. Pretty close to PG ratings, except for that silly dynamic rating

[@normalicy]

Dereck BigDWiz That it does. I'm glad that I'm don't have a huge commitment to the brand. It's just sad that their advertising was so.... shady for such a reputable company (and yes, I'm talking about that dynamic rating). But I guess the more I think about it, others lied in their own way.

[@johnwiley2129]

Do one on the old mtx 1000d

[@DuuufXhcj-j4x]

Es de lo mejor del mundo

[@DuuufXhcj-j4x]

Tengo uno

[@bobisrb4302]

Very good amp!!!i have one :-)))

[@peterimmikhuizen7186]

any one who knows where to buy some spare parts for the ms2125

[@SScooba]

I got one of these for sale

[@ADR69]

2 runs of 12awg would equal 9awg so I can see it

[@22Webstar]

Alright, sending you my address so you can mail me that bad boy!

[@wal]

You can count on that 😂👎

[@Martin750hp]

15 people no like cause they do not understand basic amplifier dynamics! They are big dummy's!

[@schummiehugo]

i had one of this... play on 1 ohm.. 1 x 18 inch sub... man i teake mi air out of mi car.. ewriting is sheaking on mi car ! now.. i mis my car. mis music. mi amps. oly what i haf is now mi MS 275.. ( yep you read it cood.. 2020 covid time.. ) mi ant mi poenix gold. ow kids.. bay the way. ( loud music is not good for you,r ears . its distro tem) bad you now when you,r old.. ant 2 lead !

[@donaldjackson4456]

Omg i hated those

[@wal]

First time I’ve heard that about these amps

[@donaldjackson4456]

@@wal not because of performance. The price at the time was outrageous