This Might Blow Your Mind! Down4Sound JP454 4ch Amp Dyno and Review

[@AraceaeFanatics]

Since JP brought back the classic US Amps heatsink look, it would be cool if he also brought back classic sink links to make two or more amplifiers look like one single long chassis.

[@Aaron48219]

Man i wish amps like this were available at this price point back in the 90s.

[@danielknepper6884]

Well, there's a reason amps were expensive back in the nineties, they were better built, class a b, and made in the USA with zero tolerance components.

[@baronvonlimbourgh1716]

I would have been deaf for sure lol. Technology moves forward over 30 years, they'll be saying the exact same 30 years from now.

[@Jeffdachefz]

@@danielknepper6884 More like needlessly overbuilt but inefficient and weak. Technology and innovation buries things that are meant to be put in a museum for a reason. 30 years later these korean amps will be put in a museum as well when new innovation comes forth.

[@danielknepper6884]

​@@Jeffdachefz ok buddy. Lol

[@changingoftheguard7256]

I regret buying the Memphis 1200w 4ch brand new and the back speaker channel doesn't work A and never has only front and subs work. It only pushing 2 400w 6*9's and no clipping issues....yet LoL

[@seanperdue232]

Down4Sound is really making an impressive mark in the mobile audio sector with these new amps. I hope to see the high quality continue at these incredibly reasonable price points.

[@seanperdue232]

Thanks BigD for sharing your knowledge and thoughts and helping us know there are some fantastic options other than the mainstream stuff we've all heard about.

[@CompactAudiodesigns]

Wow 600 watts at 4 ohms on each channel that's one of the most powerful 4 channel amp I have seen in a while for all those guys who want to run high power midrange while keeping it in stereo mode

[@renabecton1457]

I'm using a 4 channel ol school Earthquake TXO4300 on my 15" subwoofer right now and it flex my car running in 4 ohms💪💯

[@THELIFEOFPRICE]

Man another great review! Sounded amazing on the sound demo as well 💪🏽💪🏽And as always we take your recommendations on ways to become better seriously so thank you for that 💪🏽

[@JamesBond-oc4gm]

Good shit brother 👍

[@wal]

I appreciate the opportunity to test as well as provide feedback. It’s getting harder and harder to find negatives 👌

[@THELIFEOFPRICE]

@@wal that’s our goal 😊

[@scottjames3698]

@@wal You should review their customer service. Their anti-consumer return policies would make for a riveting video.

[@danielknepper6884]

​@@scottjames3698 well the name of the game is not to accept returns, the name of the game is to sell sell sell sell and move it out the door.😅😂

[@ftlaud911]

Another JP monster. JP is killin it. Been watching both channels since the beginning. JP - We need a JP234 in Blue to match the Blue JP23 v2. My OCD can't handle the different color amps. Would have bought them already. Will be my first build back since 2003. Life got busy / got older, but still love a car audio system done right.

[@MacNifty]

Yeah hes killing it but let's see how many of these amplifiers make it as long as a Rockford or a kicker. Let's see if big d has any of these amplifiers on his wall in twenty years. They will be sitting with the boss and pyramid. What is the length of life of these ample of fires for real? Why does he have to make new designs so quickly so fast what is he hiding? If you made your design good from day one you wouldn't be updating your board you wouldn't be updating the Process. It would already be set. So i'm saying he must have cheated in the first stage's. He just didn't tell anybody and he had any returns and warranty claims. Let's see that paperwork jeffrey!

[@ZoeyR86]

i have 4X JP234's and 2 JP83's on a DSP i pulled them apart and had them anodized in Deep purple to go with my rebuild

[@ftlaud911]

@@MacNifty - you make some valid points. I give him the benefit of the doubt until proven otherwise. There is always a rosk in buying anything. Like any new product you always see room for improvement. With large companies it take more time for them to change. Being a smaller company has its perks and allows for updates to done quicker withoit red tape. As long as things are improving the customer wins in my book. As for the longevity that is a tough one. Most products today (cars included) do not last as long as older models. Most items are throw away and meant to last just past their warranty. Sad but true in my experience. When companies over build a product the warranty usually indicates that. In my case I am lookong for a couple years of usuage. Anything more is a plus in my book. By then things may have gotten better technology wise. I would like the choice to upgrade and not be forced, but you don't ever truely know unless the warranty backs it up.

[@CL-yp1bs]

Great dynamic headroom, indicative of a overbuilt amplifier! As for the caps you would be surprised how good some of those Chinese caps are. The Eton Core which is an extremely high end SQ amplifier with the lowest distortion of any amplifier in the world… It uses Chinese capacitors (Yuscon but it’s Yuscons high end line) so I think that is a good example of the Chinese making quality components. To get Genuine nichicon capacitors, you have to import them from Japan into China for amplifier assembly so it’s not just the cost of the capacitors its the cost of importing them instead of buying domestically inside of China. I would guess it would add a solid 20 bucks if not 40 bucks to the cost of the amplifier

[@THELIFEOFPRICE]

I understand what you are saying but I don’t want people thinking this particular amp is made in China because it’s not. It’s Korean 🙂

[@Frietpan]

they fixed that issue by labeling their shitty caps with nichicon labels on it. thats the real issue.

[@CL-yp1bs]

@@THELIFEOFPRICE Good to know!!

[@wal]

Yes and some of the ultra budget amps I've shown have counterfeit Nichicon caps so that wouldn't be helpful either. I just brought up the point for discussion. It's in no way a D4S issue only as most of the big MFG's use these generic style capacitors.

[@TOLDyouSOagain]

​@@THELIFEOFPRICE I haven't had a good experience with the filter caps

[@innerlude]

I can't pull myself away from using old school PPI amps. If I were too, I would use D4S amps.

[@raymo6795]

I. too, love the old PPI stuff. I have no use for any of the Asian made products available

[@josephrodriguez5566]

I myself are still using 4 old school linear power amps for mids and highs and and 1 for my subs. use to compete with them and never broke down. two 3002, one 2.2 hv, one 8002sw for two 12s.

[@innerlude]

@@josephrodriguez5566 Those are great amps as well. Very well made.

[@josephrodriguez5566]

Trying to find more😅😅

[@justScrollin0627]

I couldn't fathom running that much power to my Highs and mids😳But for the ones who do 💯👊

[@jeffrankin9744]

D4s has quickly become my favorite audio supplier.

[@THELIFEOFPRICE]

Thank you 🎉

[@kiklop8362]

Why?

[@ksavage681]

@@THELIFEOFPRICE Just recently bought your line level converter and a Deaf Bonce amp. Excellent stuff!!!

[@jeffrankin9744]

@@kiklop8362 I bought 3 d4s jp23. They pull a lot of power and sound great. I have them hooked up to 4 Rockford Fosgate 12" t2s1. The company helped with the setup and gave me advice. Which I followed. Best sound system for me yet

[@markroberts715]

Same

[@minus3dbintheteens60]

Having both input and output clipping indicators is sick, makes for much easier tuning. Although I wish it was class AB, my Orion can do 450wrms x4 @4, and it's not even the big model.

[@adampaffrath4299]

Dude that things a monster 4ch! Like you broke out some og royalty with the w7! Man from watching your ch so long it’s brought my insane love for car audio and slamming bass back like I’m 17 again 🤘🏻🤘🏻🤘🏻

[@TOLDyouSOagain]

I ordered a jp23 refurbished amp. Removed my ctsounds ct1500.1d amp that has been faithful for 6 months. Slide the jp23v1.5 in its place, checked preamp voltage, im running oversized 1/0 ofc wire, 2 agm xs d3100 batteries. The amp blew a cap on the filter side within 5 minutes of me having the amp. Thankfully the bottom is clear and I took a picture straight out of the box. You could see the cap was leaking when I got it. So I had to send it back the same day I got it. I have sent it in and I am waiting to see what they say. I was told they would replace all the caps. I wondered why they didn't use better caps myself, the filter caps sax 25 volt caps are only .08 cents each. I trust down4sound will take care of me. Just sucks I waited a week for the amp then had to ship it right back to the repair department. I asked if I could pay the extra money for a new amp and was denied. The listing stated 1 year warranty but it only has 30 days. I'm frustrated, but as long as they make it right is all the counts. Customer service has been great to work with, he is polite and patient. However, he can only do what he is allowed to do. It's up to the company to inspect products and step up when at fault.

[@donjaun540]

I love your suggestion Big D. We should have a choice. Better caps for a long life. Thanks and I hope JP listens.

[@________GHOST________]

One of a kind 4ch amp with the clip out mode awesome

[@thenotoriousrvh6091]

I have no personal opinions on JP, but he seems to be killing the amp game. Agreed better caps and a dimmer for the remote would be a nice touch.

[@wal]

JP and his team are bringing out great products

[@THELIFEOFPRICE]

We already started dimming the displays on the new runs of amps with the knobs 😊

[@ksavage681]

@@THELIFEOFPRICE Do green or orange displays instead. :)

[@minus3dbintheteens60]

Oh orange and dim ftw!

[@JoshM7]

The THD lights are cool and I know Rockford Fosgate has them on some of their amps. Always wanted to get an amp that had those but I hardly use more then 20w on my 4 channel amp with my habits.

[@alanstant9356]

I listened to this on my car system my man. It sounds so good on it. Thanks for sharing and testing of the amp.

[@jasonhardison7103]

Thanks for sitting it next to the jp 33 I was wondering if they matched 😀

[@thebreakbarrelshow]

Sorry to say that im just now finding your channel.. i was a big basshead from mid 80's through the 90's . Now having a mercedes sl550 ive been researching the heck out of everything and these amo dyno's have helped tremendously.. Being out of the scene a good bit , i bought a couple of Blaupunkt amps.. i was like damn these should be so much louder. Saw your dyno lol.. man was i pizzed off...But anyway , your efforts are appreciated and very helpful

[@1904audio]

We live and learn

[@baronvonlimbourgh1716]

Yeah, blaupunkt aint what it used to be anymore sadly enough.

[@Oldnobrand]

This would be a great head to head for the OG Rockford Power 1000 Just in terms of SQ and Power output etc.

[@APCustoms1]

Loving D4S Amp. Got myself D4S JP33! Right now have it running at 4 ohms on four Savard Hi-Q 6.5" subs in a custom box I build tuned to 30hz. Saving up for some Savard high out put 10" subs.

[@FLINTmitten810]

Man I bet that sounds really good!!!

[@wal]

Those Savard subs are killer too 🤙

[@APCustoms1]

@@FLINTmitten810 yea I have a slowmo video of the flexing my window and mirror.

[@mathuetax]

As for better caps, they could make it a special/limited edition of 250 or 500 units. I dunno how much better it'd make an amp in this power range but it'd certainly be interesting to do a head-to-head. (D4S might have an arangement with their supplier that doesn't allow this subisturtion or makes it prohibitively costly) I suspect you'd need to do more than just a brute force output power test. Fidelity in, versus Fidelity out, dunno what test equipment that'd require though so perhaps it isn't a practical showdown.

[@willieurus]

JL for the win on sound quality

[@whatarushlod]

Back in the day, 80’s and 90’s, an amplifier with this type of power would have cost well over $1,000!!! I remember my old punch 150 amps were $500 each!

[@Maximus-sm4ue]

QUESTION: If amp gain is set using a test tone to zero clipping, but shows light clipping while playing music loud; does that mean the gain is too high? Is that the difference between certified and dynamic? Amp in quest is the Rockford Fosgate R2-500X4 with clipping light.

[@joseph.m.hodges]

Wow another awesome product from JP and Down4Sound

[@Chris-B-Bassin]

That amp is a beast... I see a ton of blown speakers in the future 😁

[@Ray-uc8ij]

I love your microphone. When the music is playing I cannot tell that the music is playing through your microphone vs just directly on youtube. I use Klipsch stereo speakers with a sub on my pc.

[@bryankaigler2907]

I really enjoy your channel. Especially when you do old school amps. I prefer old school installs rather than today's bass heads. I like the hidden wires and amp looks. Also I prefer sound quality over windshield shattering bass.

[@wal]

Thanks for the feedback!

[@bertastleford4692]

Can we get an updated on what you did with the skar 18" subs. Thanks Big D

[@nohairdontcare8803]

Just ordered a box and amp from them. Delivers tomorrow.

[@jonathanpangilinan450]

Ow i love watching when you test in dyno and excited to see inside the amp. Always tune at your channel watching from Philippines sir.

[@Hexa8]

Jp definitely listening you😊 Better caps next time 💯 🎉🎉

[@colorblind1983]

Absolute BEAST

[@wal]

It is a MONSTER and headroom for miles

[@THELIFEOFPRICE]

😊

[@ruikazane5123]

Samyoung caps are actually decent. The company (Samyoung Electronics) is run by Nippon Chemi-Con and has two manufacturing locations, one in Korea and one over at China (excluding Chemi-Con). The caps are pretty much identical, series matching but with a different brand. Their selection probably isn't broad enough to satisfy this amp though. Otherwise, one hell of an amp!

[@bassmansl9596]

Man that amp is a beast

[@tser1983]

D4s always underrate their amps tho

[@TheLassenman]

Wow that is the most craziest 4 channel i've ever seen. Awesome

[@Cubik303]

Better caps? A great video would be to take an amp (this JP amp would be a good candidate) and recap with high-end caps such as Nichicon or something similar. Then re-run the dyno tests and see if power or distortion specs change. There’s some work to do on selecting the correct replacement caps. Once you pull the stock caps it would be good to analyze them out of circuit for basic characteristics such as ESR. Same for the high quality replacements. Then solder in the replacements and run the dyno tests. I’m happy to help where I can (I’m a EE but not a good one, mostly do software these days because $$$) and can support with tools if needed. If you aren’t comfortable with the recap work, a local repair tech can knock it out in minutes for little coin, just bring him/her the board and caps.

[@wal]

I’ve thought about this and my feelings are it won’t add SQ or power, but could add to longevity

[@Slane583]

@@wal I'm no audio engineer. But one thing I've noticed as far as caps go is that companies like to use generic model power caps even if they use a higher quality brand. I'm curious what would happen if they were to replace the stock caps with an actual Audio Cap like a Nichicon Fine-Gold or something from the likes of ELNA or RubyTubes. Experimenting with with high quality audio caps is always fun. :)

[@NightshiftCustom]

the problem with these cheap caps is they can and have gone bad faster then they should and therefore would make a good amp a paper weight in short time

[@wal]

@@NightshiftCustom the bigger problem (IMO) is the fact they are available to OEM's only and we don't know (unless we pull them and test) if they meet their ratings. This in no way is a D4S issue as many big mfg's use these OEM caps as well.

[@baronvonlimbourgh1716]

In the signal path you really need to move past electrolytic caps if you want to go for sound quality. If you are gonna upgrade and spend loads of money, do it properly.

[@RJSDZNS]

So as always JP under promises and over delivers. God that current draw, holy cow! Definitely need an upgraded electrical and probably second battery to run this amp!!

[@FLINTmitten810]

Yeah he’s really flexing his OG status in the car audio game & giving us one hell of a deal on great amplifier’s amongst other products.

[@bradbrabson4475]

Big d. Man I wish you had some kind of searchable index of all the amp Dyno videos. I would love to search for 4chn amps and really see back to back the ones you've tested

[@dennisraymond4339]

Like the new distortion indicators. New. 😮.

[@Ethan-yg8me]

When i build a new system im really considering doing an all D4S setup.

[@davidkilner207]

What's the name of the company that builds their amps??

[@jamesgandia8099]

I'm looking at the jp95. Question is. Can you run the front channels at 4ohm and the sub channel at 2ohm? Thank you. Love your informative videos.

[@andrewr05]

I would be very interested in you doing a write-up/video on the type of sound proofing (and overall setup) you have done on your Sequoia, as well as I'm sure others are interested in your other vehicles as well. I've had my Sequoia for about 2 years now, but I just recently bought myself a nice system and I'm not really looking forward to dealing with all the rattles of an 18-year-old vehicle. 😂😂👍

[@sethgt1234]

My JP 10.4 does not get warm. I tried to see how hot I could get it, 106°F was as hot as I could get it. My Orion HCCA 11000.1 gets a whole lot hotter.

[@edmondcarter9457]

This amp is a beast 😮😮😮

[@saschacubexyz]

Enouph power for the most and a clean design... in and outside.... not bad 4 a muscle maniac😎 👍🆙️

[@calvinevans8305]

Nice test. Does anyone make components strong enough for this bad boy? Lol

[@kevinAuman1]

Ummm taramps has had multi-color clipping indicator lights for ages brother the clip light turns orange for a soft clip and then goes red when you're in a hard clip scenario same bulb...

[@markroberts715]

Very nice as usual,thanks for the dyno vid big D!!

[@joeyholthusen6495]

I enjoy my JP23 😮 it's bridged mono in the wife's mazda tribute going to 15 earthquake. Thought of trying it out on my soundstream splx...... yes the old school beast still lives. Lol 😊

[@danrimjob5546]

Big D, I know you normally do dynos on Big amps but please do dyno on the jp3 I'm curious the different wattage on 1,2,4 ohms

[@Thumper68]

Legit numbers right there. 💯

[@fusion82]

I was going to buy one until you mentioned it needs better caps. Thanks for the heads up

[@wal]

The caps on most big brands are generic like these. For most they will never experience issues with them. Brands like Nichicon, Panasonic, Rubycon, etc. are used by techs and have lifespans of tens of years. You won't find these caps in virtually ANY amp under $2000 due to the added cost of integrating into the manufacturing process. My mention wasn't to say they are "bad", but simply a recommendation to make the amps even better than they already are 👌

[@THELIFEOFPRICE]

If anything happened you have warranty so don’t worry 😊

[@jasoncasto910]

Higher end caps aren't going to make any difference on the rail voltage. It's the signal path where caps will shine. Also remember, there is much more to a capacitor than a name. The specs are not the same on all caps. Nichicon and other manufacturers might not make a cap specific for the needs of a particular amp or other electronic devices.

[@baronvonlimbourgh1716]

Then you need to have deep pockets if you want branded caps. Probably cheaper to just upgrade them yourself to branded ones if they ever where to give you issues before you stop using the amp, which will probably will happen much earlier 👍

[@BassBrotherBuild]

Love your videos. They are on point and always relevant

[@wal]

Thanks for watching and commenting!

[@BassBrotherBuild]

@@wal always a pleasure. Been a fan for a few years now. Your Definitely my favorite you tuber.

[@chuckd9007]

Whats the dampening factor on these amps? Definitely need 105°c caps

[@smalltimer4370]

Wow, what a beast!

[@WillyMerc]

What are the good Caps and can they be changed out? I was thinking of soldering in good ones if I get this amp.

[@nunyabizznizz7326]

d4s putting in work! they are lessening my fosgate or nothing view...good job fellas 👍👍

[@mackenziebullied4900]

These days, brand name is unfortunately irrelevant cause everybody cutting corners

[@wal]

*SHOP* JP454 Amplifier: lddy.no/1g0zk JL Audio 10W7 Subwoofer: howl.me/cjAIlyFQ3VI Elac Debut 2.0 6.5" Bookshelf Speakers: amzn.to/3N6a1uJ JP77 (7-channel) Amplifier: lddy.no/1dfs1 JP10.4 Amplifier: lddy.no/1dfs2 JP40 Lithium Battery: lddy.no/1e081 Rockford Fosgate Power T1000-4ad: amzn.to/3u0vdaH JP34ab 4-channel A/B Amplifier: lddy.no/15b14 JP84 4-channel Class D Amplifier: lddy.no/zhh0 Shop all Amps and Speakers here: www.shop4bass.com D4S LTO 6.0 battery: lddy.no/1d7tj 1/0 OFC Amp Wiring Kit: lddy.no/1d7uj (don't get CCA!) HiFiVega 1/0 OFC Wiring Kit: bit.ly/3rV9vDU HiFiVega 1/0 OFC Big 3 Kit: bit.ly/3rXqxRW Note: Amp requires 1/0 OFC wiring and extra battery. Remember, it takes power to make power, beef up your electrical system first! This amp can pull over 300A at full volume. *RELATED VIDEOS* Extended Sound Demos Coming @wal2 Down4Sound JP10.4 4-channel: kzbin.info/www/bejne/mJ3XqKyIjLtjas0 Down4Sound JP234 4-channel: kzbin.info/www/bejne/rXKQd5KDfL12iZY Down4Sound JP83 Monoblock: kzbin.info/www/bejne/lXPYopitnsRroqs Down4Sound JP34ab 4-channel: kzbin.info/www/bejne/b6HXnaRvncxmoKs Playlist of All D4S JP Amps here: bit.ly/3NF8I32 *VIDEO INDEX* 0:00 Intro 0:42 Unboxing 1:32 Specs and Features 3:29 Amp Dyno Tests 6:56 Sound Demo 8:37 Thermals and Internals 10:20 Pros and Cons 11:08 Final Thoughts 11:44 EXTRA Test *_NOTE_*_ Amp was provided to me as I'm an affiliate of Down4SoundShop. This does not mean the video is an advertisement, I still provide factual data from measurements plus my genuine opinions_ *VIDEO AND AUDIO GEAR* Camera - iPhone 13pro 1TB - amzn.to/3nCjGvc RODE Wireless Go II Microphones: amzn.to/3Q6NVHl Shure MV7 Microphone: amzn.to/3A4OICK Zoom H4n Audio Recorder: amzn.to/3BXjVsS 960 LED Panel: amzn.to/2Sxoq3S *TEST BENCH EQUIPMENT* SMD / D'Amore Engineering Amp Dyno: goo.gl/sJTcf7 XS Power D1400 Batteries - amzn.to/2BPFCKW XS Power PSC60 Charger - amzn.to/2CHGcfs Fluke 1000A AC/DC Clamp Meter: amzn.to/2Rw5WDA Handheld Dyno: amzn.to/2u2EgKV My Favorite Screwdriver Kit: amzn.to/2x0VzcE _DISCLAIMER: This video and description contains affiliate links, which means that if you purchase from one of the product links, I may receive a small commission. As an Amazon Associate I earn from qualifying purchases_

[@johnpolaski6126]

Down for sownd has been crushing it you 2 have changed the game!

[@THELIFEOFPRICE]

💪🏽💪🏽

[@minus3dbintheteens60]

I think someone smarter than me can say why, but I'm sure that increasing the quality of capacitors leads to lower distortion. Just like having cooler running resistors etc can lower Johnson-Nyquist noise. I was looking into mods people have done to my DAC and the highest measurable results. Although its funny I have old Alpine amps (T757, 1505 etc) with busted open Nichicon caps but the other caps inside are fine, while I have so many different "cheaper" amps that use these special low profile Chinese caps and none have popped their top on me yet

[@DTW-bx2vy]

Hoping JP drops his JP3 300 watt mono block amplifier soon.

[@wal]

That one looks super interesting 🤔

[@THELIFEOFPRICE]

Supposed to be here this week if no delays happen 🙏🏻

[@DTW-bx2vy]

@@THELIFEOFPRICE Awesome, thank you for the information JP. Can't wait to get a couple for myself.

[@phillipbainbridge9107]

It wouldn't cost more than $15-20 per amp for quality caps, taking bulk purchase into consideration. Outside of the caps, everything else in the amp is also going to be lowest common denominator. Hence why similar bic lighters don't last.

[@halseyballistic]

Hell yeah! Very nice amp and love D4S

[@jimbobdobbs1597]

Man..they do make some pretty amps.

[@SoberBassHead]

Power extreme!!! Crazy!!!

[@kevinAuman1]

Is the bass knob Bluetooth or does it have to be linked directly to the amp I recall some of his knobs just needing a power supply and not strapped directly to the amplifier itself

[@aceventura1523]

at 2:00 Id like to have better QC for the freq adjustment on ch3/4... thats $249 quality, lol

[@timothyanderson1132]

I wish they would put better caps I’m on my second JP 234

[@FUBuddy]

lol this sounds good on my computer speakers... but what about people watching on laptop or phone ? minidsp 2x4, polk in wall 6 inch component set on new old school receiver/amp, svs 400 watt 12 sealed.

[@wal]

They are missing out!

[@2011joser]

As consumers we have known Nichicons to be superior caps for decades but I wonder if we need to accept the possibility of other brands approaching existing standards. Is there any data out there that Capxcons are significantly less reliable? We now accept Korean build houses to be trusted so maybe we need trust them in their sourcing for amps in this price range. I’ve had Nichicons in Eclipse amps fail in the past while the Capxcons in my 5 plus year old Skar in daily commute use are still fine.

[@wal]

Thanks for the feedback 👌

[@monkeybikedenmark]

That is just mind blowing

[@JoshPro12_Offical]

About the sub, like how dose it work because I seen some with the screw holes under the surround

[@bjones416]

Everytime the dyno stopped I said gahhhhhh damn 😂..you have tested more powerful amps but I was not expecting this

[@THELIFEOFPRICE]

🎉🎉

[@bjones416]

@THELIFEOFPRICE excellent way to bridge the gap between the 234 and the 10.4

[@Bugglebub]

With music signal off and volume off, can someone tell me how much hiss you can hear coming through the mid range or tweeters? Thank you

[@motorcity429]

If it's in the price range of a Rockford power series. I'll go with the power any day twice on Sunday

[@CraigMac330-NEOhio]

@THELIFEOFPRICE Maybe build a Sound Quality line that includes high end caps and filters. Obviously, prices would reflect better internals but it would be a great option!

[@yellowrooster3308]

Crazy power ds4 for the win again

[@JAHblu.Rasta.Far.I]

Very nice monster amp but pricey! I agree why cheap parts Id pay it knowing it has top notch quality parts inside not cheap ones, other amps are available beating the price if this one.I still like the brand d4s.

[@THELIFEOFPRICE]

We aren’t here to be “the cheapest guy on the block” so if all a person bases their purchase on is price , by all means they can purchase from somebody else 😊

[@baronvonlimbourgh1716]

Good luck finding a 4 channel this powerfull elsewhere.

[@shawnneal8522]

That amp would make a great full system amp. Run front stage and subs rear fill off the deck.

[@wal]

Yeah just gotta be careful with that 600x2 on the front 😲. Lots of headroom and could kill most 2-way components

[@kingwillie206]

@@wal- There’s no way I would use two way speakers with that. Lots of component speakers though 👍

[@baronvonlimbourgh1716]

Way to powerful for fronts lol. 16 subwoofers though..........

[@heardandtested]

We'll like to see another test of the Amp with lithium bank asap.

[@wal]

🙄

[@SLzR93-]

Can I run 10 dead bounce midrange speakers with this amp? 😅

[@soundman_caraudio]

🙌🙌🙌🙌

[@Thumper68]

If the caps are not causing any issues then it would be bad business all around to put more expensive ones in just for a name.

[@wal]

I’m not saying they are bad, but the generic caps aren’t available to the public so we can test and verify their ratings…without pulling them from the amp(s)

[@firebirdude2]

"Not causing any issues........ right now."

[@NightshiftCustom]

if you lookup the brand of cheap cap's used in this amp you will find countless story's of how they fail early and are just junk. it is very well known not to use these caps for anything I would not buy this amp just for that reason alone ps: sorry JP love what you do brother

[@THELIFEOFPRICE]

@@NightshiftCustom we will see if you are a man of your word in the future 😊

[@davep2945]

The issue with putting in supposedly better caps is that most people buy amps based on power and price. If someone else sells a more powerful amp for the same price or less then a lot of people are going to buy that amp thinking it is a better value. In part because most people have no idea what quality parts are. Then again, simply because we have an opinion about one brand versus another doesn't mean we're always right. Is Nichicon always better or is that simply the only name of a brand appreciated for quality that you happen to know? Do we have evidence that Yuscon is always worse or that there is a functional and meaningful difference in their caps that could be heard and appreciated in the noisy world of car audio. As enthusiasts we often assume our desire and passions are shared by everyone but that is almost never the case. If an amp lasts ten years regardless of the brand of caps within it then to most what difference does it make if it doesn't allow them more power for their dollar? And if, say, Kenwood is doing it or ROckford and you have to price your amp fifty dollars more because of the caps you use you will not sell many people into car audio on higher quality when known name brands feel that lower cost caps are just fine. Maybe D4S should do like Kenwood or JL and offer this regular line amp and a pro line like the the Excelon or Slash series with better components, better specs and a better warranty.

[@lilechanneltv_7825]

Hey do u think this amp would be good for a Mtx thunder 9500 ? I’m trying to find a amp that would make it hit harder.

[@Bugglebub]

Can anyone report noise/hiss level with mids connected with no audio signal? Literally amp on, mids connected, no RCA's, just a battery, remote and speakers. Is there any noise/hiss?

[@joebruce2180]

Big D what sounds better the infinity Kapaa sub or the jl audio sub ???? I've noticed that you've used the infinity Kapaa sub for testing for a while.

[@wal]

This JL 10W7 is one of my favorite all around subs of all time

[@joebruce2180]

@Williston Audio Labs what do you think of the the infinity Kappa subs??? I think they are some of the best.

[@willieurus]

Reminds me of Sherwood the side of all the adjustments

[@HifiVega]

You found the beef!

[@wal]

Four channels of FURY!

[@danielknepper6884]

Apparently so did my ex-wife😂

[@Japo29]

One amp to do it all 🤞

[@wal]

Like the ring 💍

[@SeanOMatic]

Uhh, Rockford has had the blue/violet/red CLEAN clip indicators for a decade now...

[@chemicallust77]

I'd replace those low quality 85c caps with some better 105 caps...that's probably what puts it in the price point it's in

[@djmjr77]

Sooo.. what kind of speakers would you run to take advantage of this ampnin 4 channel mode? Are there any 6x9s that could handle this?

[@johnclark3067]

Multiple pro audio style speakers. I don't think any individual speakers (except subwoofers) can handle its full output. You can run more power than rms as long as you have a high pass to block bass and don't clip the amp. Then back off if you smell coil or hear compression of dynamic sounds.

[@wal]

Prob need to move up to 7x10’s 🤣

[@djmjr77]

@@wal lmao 🤣

[@djmjr77]

@@johnclark3067 I thought that smell meant you have it tuned just perfectly 😋😋 Is it weird that I kinda like that snell...

[@Finga_Trappa]

Do it bump doh 🫠 full Def crock pot on some heavy power was SOLID