Monolith 13 THX Ultra has some SERIOUS excursion!!! 😳

[@Youthman]

That intro and outro! Would love to see more of Randy in future videos. Appreciate all of the time you put into your measurements and providing objective data. Keep up the great work Erin.

[@ErinsAudioCorner]

Thanks, Michael!

[@timperry8673]

I concur with Youthman!!! The outro got me LOL.

[@cheapaudioman]

The video preview started going and I saw the wig and instantly clicked. And then I liked it. Then I found out it was based on Randy. Fabulous. More Randy, please

[@ErinsAudioCorner]

LOL. Yea, someone else mentioned you and I thought "oh, yea!". If you grow a mullet then I'm gonna say it's named after you.

[@cheapaudioman]

@@ErinsAudioCorner my one attempt at a mullet was immortalized in the 1990 Class C state football championship picture that hung on the wall at my high school. It wasn’t pretty.

[@ErinsAudioCorner]

@@cheapaudioman I missed that era. But was there for the rat tail. 🤦‍♂️

[@catherinelugg4321]

Bwahahahahahahahaha!!! "Randy." I'm rolling on that intro. Glad you're having fun going DEEP on the data dump. Thanks for the good and FUN work.

[@dlloyd6300]

Love the skits! Keep up the fun stuff, it adds some levity.

[@ErinsAudioCorner]

That's what I was going for. Gotta break up the monotony sometimes.

[@smurfie8412]

This hits way harder in extended mode!!! Wipes the floor with the 15

[@m4nc1n1]

I have two PB1000 Pro's and wanted a 3rd in the back. Still, they raised the price by $300, so I went with the THX 10". I really wanted the 12," but this was a 3rd sub just for the back and wanted to stay under $600, so got the 10". I figured the two 1000 Pro's already could do more than I needed in terms of output, so if the 10 did not work out I would just return it. Man was I surprised of the output of this 10" THX. The thing is a beast! I can only imagine what that 13" sounded like.

[@billybobby7607]

You shouldn't mix and match sub brands

[@leanderzulu3494]

@@billybobby7607 if you know what you're doing as long as they all ported or all sealed it's not bad at all

[@billybobby7607]

@@leanderzulu3494 interaction around port tune is

[@jf9785]

I got the 13 in my barracks room. This things is worth every penny. Everything in here shakes when it goes to work.

[@davidniquot6423]

You need 4 .. !!!

[@Rockhurst22]

Too funny, very well done and enjoyable.

[@mikesimpson7323]

LOL loving the intro's Erin.

[@lyndonramchatesingh105]

Hey Erin how would this monolith thx 13 subwoofer compare to svs sb3000 or pb3000

[@juicebox853]

Just bought 1. Erin, you are the man.

[@HomeCinemaJunkie]

Another epic review of an epic subwoofer! I allways wonder how much my neighbour's house is shaking when I watch a movie with my three(!) 13 THX😅.

[@jacoblynch9862]

Lucky I have one now and I do feel at the right signal it is in a small bedroom and it will shake the crap out of my entire house but I would like to more as well just can't afford them but I do have one and it is Nice

[@Woot-Zee]

If I had that accent I would move that sub upstairs ALONE! :D

[@ErinsAudioCorner]

😂😂😂

[@LifeofBliss]

Hefty driver right there. Nice video man, loved the cameo!

[@ErinsAudioCorner]

Haha. Man, I actually thought of you when I watched this back. 😂😂

[@LifeofBliss]

@@ErinsAudioCorner 😂 glad that's the sort of content that makes you think of me 🤣 but yea, gotta break up the serious with some fun.

[@dan_hitchman007]

Erin's going for his Oscar.

[@carlosarques]

Randy rocks!!! 😀

[@dadevastator24_77]

It’s crazy how close the Monolith 15 performs to the monolith 13. Since the monolith 13 has 1000 watts more than the monolith 15 I would have thought it would have outperformed it way more.

[@mitsuracer87]

Going from 1000w to 2000w will only get you a 3db gain.

[@PumpUptheJam81]

This is the first sub I have owned that actually scares me. It’s very articulate but it will kick your butt when you are not paying attention. Neighbors will be securing the fine china.

[@matsudakodo]

I use two subs just for one position because it smooths out the bass for me. But I do care about others!

[@weeooh1]

I think the Monolith line should completely disassociate its brand name from Monoprice and have a separate web site from them. Kind of like Lexus and Toyota.

[@dustins869]

Hey, man. I like your I didn't feel as though I needed to start searching Google to fully understand your results. Everything was very well explained and it was still an entertaining and useful video.

[@Smellslikegelfling]

How would a regular ported sub compare to something like M&K X12+ or the Perlisten subs? The reason I ask is the price is less than half. Would the bass be tighter coming from the higher end subs, or is it purely a matter of placement and EQ?

[@ROBERT-ml7ml]

It is good.

[@MichaelBeeny]

No Monolith here in New Zealand, in fact almost no HiFi full stop.

[@AntonyStubbs]

I know right? It sucks. However, Monolith Australia ships to NZ.

[@keepingupwiththejones2933]

Randy is the best.🔥❤🔥❤

[@embp1647]

I love to see a review of your DYI subwoofers!!!!!

[@slofty]

Here’s hoping PSA (or someone) sends you a V1512. If they don’t, I just may have to sometime next year!

[@Odatscoo716]

Hi, do you have any videos or recommendations on best bang for buck diy subwoofer for home music? I want alot of bass.

[@Kamric68]

Does your affiliate link work for buying the Monolith 16" I'm fixing to purchase the 16" model soon but wanted to go through your affiliate link to help you out if possible.

[@ErinsAudioCorner]

Yea, it should but just in case, here's a direct link. www.jdoqocy.com/click-7732025-11552490?url=https%3A%2F%2Fwww.monoprice.com%2Fproduct%3Fp_id%3D42031 And thank you for asking!!!!

[@Kamric68]

@@ErinsAudioCorner Just made my purchase, hope the link worked out for ya and hope you're doing good!

[@ErinsAudioCorner]

@@Kamric68 awesome! Thank you!

[@peterpida1840]

I really wonder if you can get one of those Rythmik servo controlled subwoofer kits to your measurements?

[@HPMIKE55]

Great job bro & would the 15in go down lower thin the 13in? 😎👍

[@paulgyro]

Not in this case

[@ErinsAudioCorner]

According to *my* numbers, the 13 inch has more output below 25Hz but the 15-inch has more output above 25Hz. James Larson @ Audioholics shows the 13-inch clearly besting the 15-inch all around, though.

[@HPMIKE55]

@@ErinsAudioCorner ok thanks but that 13 so much bigger I don’t think my wife is going to be happy. How about the SVS PB400 vs the 13?

[@Jon-nz3dm]

2:22 it shows you...the 13 actually delivers a tiny bit more SPL at 20hz and below. But for most of the audible sub bass, the 15 will play louder.

[@HPMIKE55]

@@Jon-nz3dm ok thanks

[@veeracs]

Can you please do a video on subwoofer equalization?

[@joeychavez8318]

Im currently running a studio speaker setup (KRK) in my living room because I have no idea how to set up actual hifi/ home theater speakers LOL. Studio gear is what I know and it seems to do the job. Along with the studio monitors Im running as my main L/R speakers I have a very decent 12" studio sub, also KRK, it's only 220 watts but it absolutely shakes my house! So I couldn't imagine having that 2,000 watt monster in my living room! 😵

[@Danny-eg8mj]

King of the Subwoofer !

[@avnut5517]

Fantastic measurements! I have always been an advocate of multiple subs. Highly recommended unless you have only one listening position.

[@dan_hitchman007]

Even if you have one listening position, you should at least have two subs to help even the response in the room. Physics doesn't care about how many people are listening at one time.

[@ABC-rh7zc]

Hilarious intro. More!

[@dhruvmeena96]

how many characters are in Erin Universe also, get well soon

[@ErinsAudioCorner]

3 or 4

[@dhruvmeena96]

@@ErinsAudioCorner gonna have to go to temple and pray to god for your good health :)

[@kingtubbyleeperry]

That yello outro 🥰

[@tvolkman88]

Nice! We need sub measurements since data-bass no longer in operation.

[@ErinsAudioCorner]

Yea, I wonder what happened. Maybe Josh just decided to take a break?

[@georgexydous2891]

Hello! I currently own a PB 2000 pro and i was wondering if with proper callibration, i could use both of them, one as front (Monolith) and one as nearfield (SVS)?

[@ErinsAudioCorner]

I’d say yes, but just caution you to understand that it may not be easy. The main thing will be proper level matching.

[@georgexydous2891]

Thanks. I knew that when going dual its good to have identical subwoofers. However i think that when using pb2000 pro as a "nearfield" sub, i wont need so much output as Monolith, which will be more far. Either way it cant have the same output as Monolith.

[@frankpratt529]

That might be a fun driver to design a DIY around, but it doesn't seem like they are available.

[@anandshah71]

I have got 2 Peerless STW350 drivers and planning to make 60 litre sealed box for each driver. Check out the xmax of this driver. Nice intro 👌🏻

[@ErinsAudioCorner]

I remember that one from when it came out. They had stated something like 90mm one-way excursion but KLIPPEL tests revealed it have much less. I see now that the specification sheet shows 22.4mm one-way.

[@hometheaterjoe9489]

Oh man, I love Randy!! 😂🤣😂🤣

[@KravchenkoAudioPerth]

How much power do you test the driver with on the Klippel system?

[@ErinsAudioCorner]

Depends. I use the QSC 3602 bridged.

[@Nightjar726]

Erin, what is a good accelerometer I can get with USB so I can use with REW? Much appreciated!

[@ErinsAudioCorner]

I'm not sure. The accelerometers I use are 3-wire. I've not used a USB accelerometer.

[@Nightjar726]

@@ErinsAudioCorner thanks man. Yeah I figured you used something more intricate. 👍

[@Nightjar726]

@@ErinsAudioCorner Erin. One more question. I want to clear up the mids and highs in my speakers a touch. Currently there is white 1” foam in them as lining. Ported speakers. I don’t want to stuff them with a ton of material just replace the back strip of foam for maybe some better foam or something else. Do you have anything to recommend ? Wool felt? A strip ( of the same thickness as the original foam) of rigid fiberglass covered with something so the fiberglass can’t escape? Any material I can replace only the back strip of foam which lines the cab? It just will be an experiment that is easily reversible. I don’t want to mess up the tuning of the cab. Thanks!

[@AbsoluteFidelity]

I would gladly pay 1700 bucks for this and get a pair. Problem is by the time it hits my country, it will be double that price. ID brands, please do something about this.

[@joelopez7459]

Where do yall usually set your sub volume, halfway? For testing i'm guessing 100%?

[@ErinsAudioCorner]

Really depends on your needs, the pre-out voltage of your system, etc. Most probably set it to 100% and then dial it back from there (or let their AVR/DSP handle the output level).

[@woldemortxyz7996]

Nice xmax numbers. Would love to see a sundown nsv3/4/5 18" tested. According to sundown they have 40-45mm of one-way linear xmax by 70% BL.

[@ErinsAudioCorner]

Sundown usually posts their LSI results so I'd trust them and wouldn't have a reason to test them. Plus, with that much moving mass and excursion, my laser probably wouldn't be accurate.

[@Jon-nz3dm]

I second this. With a claim of 40+mm it would be awesome to verify.

[@woldemortxyz7996]

@@ErinsAudioCorner okay. I have my custom nsv318 in my car now with an 8kw amplifier. I was planning to use it as my end game home theatre sub when I can get a house without neighbors. The coils are dual 0,7ohm, meant to be wired in parallel to a nominal 2 ohm load. Can you recommend some amplifier to drive this sub? Something as cheap as possible, but I have trouble finding any home amplifier coming even close to 8kw. But it almost needs it to reach xmax😅. I do have 220v outlets.

[@macattack123mattc3]

@@woldemortxyz7996 FYI: 8kw = 8000w; 8000w / 220v = about 36 amps. If you want to be able to continuously supply 8kw to that sub, you'll need a ridiculously beefy circuit. Of course, the amp will probably only pull 2-4kw under load, so you'll probably be fine with something like a dryer circuit, but still, make sure you won't be blowing breakers!

[@woldemortxyz7996]

@@macattack123mattc3 oh yeah I didn't even think about that. Maybe I'll just have to use my car amp for that. With 240ah of agm and 2000f of caps to absorb the peaks. Then I'd only have to get like a 180-300A 12-15v charger.

[@gaurd3]

Monolith 16 thx on sale right now tempted… not to much on the 16 except AH stream.

[@JeffAdairKTM530]

you crack me up and great stuff. How about doing the Peerless subwoofer DIY build. Peerless by Tymphany STW-350F-188PR01-04

[@manuels3471]

like how you describe mid base as 30 Hz and above ;)

[@Clobercow1]

Any interest in putting a 21" Marty Cube on the klipple?

[@FSXgta]

How about 33'' Car audio subs 😂

[@ErinsAudioCorner]

You guys are trying to kill me.

[@jasonkillsformomy]

Funk Audio 24" would be nice. Of course a Mach5audio WoW-32 would be super.

[@airtightbox]

Typo: X d @ d2=20% 162.3 mm Displacement limit due to IM distortion (Doppler)? Can you please add TS parameters, suspension, and BL linearity plots? With that level of excursion, it would potentially make for a good DIY driver.

[@ErinsAudioCorner]

If you could buy these separately then I would.

[@airtightbox]

@@ErinsAudioCorner Is that chart supposed to read 20% distortion at 16.23mm? 162.3mm seems a bit beyond possible? IF the TS are good for other uses the box may well be disposable 😉

[@dougg1075]

1700 bones is a great price. I paid 1500 in 1998 for my Sunfire.

[@icydragonsword5430]

nice review! Jbl 5 series next? i think people would really like that considering their popularity

[@dan_hitchman007]

Not worth it. Invest in a better sub.

[@psyphonyxaudio]

LMFAO!!!! .... Love ya man .. Im glad to see you Wigging Out over subwoofers.. =)

[@ErinsAudioCorner]

😂😂

[@RjTheTrigun]

LMFAO, OMG please bring back Randy, again and again, I was laughing so hard. Idea: make him the alter ego that represents the common man and have Erin be the data geek whilst the alter ego burst in to ask the dumb questions or the questions the rest of us asks again and again

[@ErinsAudioCorner]

That's a pretty cool idea!

[@kevonmanuel]

Erin, Didn't you promise Gene to start using the BaBassaholic Subwoofer Room Size Rating????

[@ErinsAudioCorner]

I remember mentioning that. Didn't cross my mind. I reckon this would get their highest level rating?

[@ganesang5537]

Randy is an anthropomorphic Mater.

[@FSXgta]

GZ THE GERMANATOR 33'' is Klippel optimized 😂

[@buffallopete]

Hehe, dude you look like that Bee Gees fella! Completely off-topic now, what do I need to get the most out of my Pioneer Private SX950 vintage speakers? My Yamaha RX A720 receiver doesn't quite get them there.

[@ErinsAudioCorner]

No experience with those speakers myself. If it's just output you're lacking, you may want to look at a dedicated amplifier.

[@bbfoto7248]

Erin, errrr...Randy, it's time to cut some metal in the Civic and put that 13" subwoofer driver in a true IB configuration vented to the outside world through the rear hatch floor like Nick's Stereo Integrity Audi Avant wagon, LOL. :P Only thing that should hold you back is that you and I would both hate to lose all of Steve Cook's beautiful custom install work in the Civic's rear hatch floor. So it's time to get a "beater" vehicle as a test mule. :P P.S. Randy scares me.

[@isaacsykes3]

Bruh!! 🤣🤣🤣🤣🤣🤣🤣🤣👏🏿👏🏿👏🏿👏🏿👏🏿👏🏿 funny and intelligent!! AWESOME

[@dougg1075]

Wild eyed southern boy. Roll Tide

[@uncola6028]

you should just do all your videos as Randy :P

[@dan_hitchman007]

A little Randy goes a long way.

[@Tomberland84]

I have this subwoofer for one month now. It's a great sub, but unfortunately it does suffer from port chuffing with some movie scenes. It can handle most of the LFE stuff out there, but the intro from Edge of Tomorrow and the room scene from the movie Pulse is a hard one to chew for the 13THX. Even on -10db from reference level. I'm considering upgrading to the 16THX or buy a second 13THX.

[@7paradigm7]

I've had mine for a few days now and have put this bitch to the test! I get zero chaffing even on the utmost demanding tests. Maybe check your preamp/AVR settings. This thing is glorious!

[@mikeortiz2139]

Randy's hair, should be your permanent hair.

[@ErinsAudioCorner]

super glue!

[@VioletGiraffe]

Before your testing, based on other reviews and feedback from the users, I was certain that SVS makes the best subwoofers at this price range. Now I see Monolith is objectively better. One more confirmation that one should stick to buying products that have been thoroughly reviewed and compared to the competitors. There are a lot of products on the market that haven't been tested objectively, steer clear of them. They might be good, but they might be a dud just as well.

[@ScotDouglas]

Hol up Son. We already got a youtube audio man named Randy . 🤭

[@ErinsAudioCorner]

Ohhhhh yeaaaaahhhh. Oh, well, no offense to *that* Randy but *this* Randy's inspiration is a lot more... let's say ... colorful. 😀😂 Actually, *that* Randy would probably take that as a compliment.

[@Azzy_Mazzy]

You DIY Subs are 4 cubic feet? TINY.

[@ErinsAudioCorner]

that's what she said.

[@nagumaninagu9368]

Hi sir

[@ErinsAudioCorner]

Hello.

[@scottlowell493]

Don't sell my sub my achy-breaky sub My speakers just won't understand.

[@CarlosGomez-THX_1138]

Cute.

[@ErinsAudioCorner]

I try.

[@Azzy_Mazzy]

Great performance aside, these monolith subs seem to have QC issues from what i have seen.

[@mikesimpson7323]

I know there were some issues with failing amps when they were first introduced but haven’t heard anything since. What issues have you seen?

[@vikassm]

This sub is a diesel engine!!

[@fredygump5578]

If you ever run out of speakers to review, would you consider reviewing some DIY kits? There is literally no reviews about DIY kits, so buying a kit is an act of faith, faith based solely on the product description and maybe a forum post. That makes it hard to know what kits are a good value, or what designers produce the best designs. (I know people avoid doing reviews of kits out of fear that people will do a bad job building a kit, which is kind of silly....)

[@ErinsAudioCorner]

I've actually got some DIY kits from Dayton that I hope to start working on this week.

[@bobstinker2074]

Chick- chikachika

[@ubacow7109]

I kinda wanna see how Rythmik Subs compare,Rythmiks servo tech has been kinda the starchild of the enthusiast/home theater community and have always been considered the benchmark for low distortion high accuracy, I'd like to know how they compare to THX subs like the ones by Monoprice because even the F18 looks to be beat by Monoprices THX ultra 13" & 15" subs in terms of output & distortion in some metrics.

[@billybobby7607]

Monoprice 15 tested similar to fv15hp. About 1db higher

[@ubacow7109]

@@billybobby7607 F18 ironically specced a little lower than the Monoprice 15 in some places ironcially.

[@billybobby7607]

@@ubacow7109 rythmik subs aren't available in the UK anyway.

[@ubacow7109]

@@billybobby7607 I dont think erin is in the UK is he?

[@dan_hitchman007]

@@ubacow7109 Nope. In the U.S.

[@kencooper2059]

Hope yo feel better soon. Thankfully, COVID is usually not that bad anymore, so you'll probably be fine in a few days. I have two of the 12" Monolith, and they kick some serious butt!

[@dan_hitchman007]

Not as bad if you had your round of shots. It can still be a killer if you are unvaccinated and the virus finds a weak spot.

[@tonydillinger2553]

lol...

[@leoweber3487]

13 inch is more powerfull than the 15 everywhere, something is wrong with your measurments.

[@ErinsAudioCorner]

Well, let's approach this logically... when you say "everywhere" you mean "Audioholics". Who I did mention in this review twice. Monoprice's numbers come from Audioholics. No one else has provided CEA-2010 data for either/both of these subwoofers that I am aware of. So, yes, mine and James' numbers are different. I know how mine was tested and both the 15 and the 13-inch I tested were tested under the same conditions (temp, humidity, microphone calibration, system software, etc). So, naturally I trust my numbers. But I don't think James would mess something up on purpose, either. So, we are at a stalemate. I'm not tore up about it, though. This is one issue with CEA-2010 comparisons from different parties. James would probably tell you the same. Luckily you have both of our data sets to pull from.

[@abielpangga6314]

actually im pretry sure the 13 inch ratings on these are like other manufacturers 15 inch ratings.

[@EchoBaseNetwork]

nope. no relation here....

[@ErinsAudioCorner]

Pshtttt....

[@robzilla69]

So did Randy give you covid? I bet he did!

[@ErinsAudioCorner]

Probably so. Dude's a jerk.

[@FOH3663]

Immediately, this screams SVS PB13 Ultra* knockoff to me....which is fine really. Solid offering, it'll move a lot if air. Oftentimes, vented sub like this would be recommended for high volume rooms... when Vessel Gain is minimal. Interestingly, these long stroke platforms are often best supplemented with a mid-bass, for increased texture and apparent speed. A typical arc an enthusiast (myself) experiences is this; You employ massive amounts of stroke, pursuing single digit extension... check. I built a quad 18" attic IB (30mm Xmax), in addition to two separate double 15" sealed subs. ~3500 cube family room w/open kitchen behind the listening area. Subs; 4x18", 4x15" My mains have dual 12"s as well. All that high quality stroke can be subjectively bested by simply adding "pro" midbass units. Yes, implementation is key, proper blending summation is vital. My supposition includes inductance effects, impedance peaks (whereby essentially ALL current is used for stroke), instantaneous compression effects magnetic and thermal... also idealized restoring force/tighter suspension. And of course force factor BL(x) curve. These big air pump, long stroke drivers can struggle to adequately resolve mid and upper bass... they're "lossy". It's a tall task to wobble the room at 10hz, and resolve kick drum punch and bass texture 60hz-80hz. *(SVS PB13 Ultra was a longstanding benchmark for vented subs, and low bass reproduction. Forum OG Ilkka Rissanen was the first DIY enthusiast/forum member, to establish Apples to Apples outdoor subwoofer measuring. Now a senior acoustic engineer at Genelec. His measurements proved why the PB13 Ultra was so successful) We're lucky to have Monoprice Monolith products... they're robust, high performance and high value.

[@smurfie8412]

No you know nothing

[@FOH3663]

@@smurfie8412 Busted! You got me, I'm a fraud! Seriously, anything in my response, where am I wrong? Thanks

[@ThePentosin]

To be honest, im here for the no nonsense, measurements based reviews. You do you, but could you please timestamp the videos so i can quickly skip the skits? Also... thank you for the work you put in, and the information you put out.

[@ErinsAudioCorner]

Nah, I'm not gonna timestamp stuff. TBH, I've got a dayjob and a lot of other things going on in my daily life for me to timestamp my videos. I get if you don't wanna watch it. But you also have to understand that I'm gonna do what I need to do to keep myself from going insane and to keep this hobby a fun, light one. A few seconds up front isn't the end of the world. I hope you can tough it out and learn to enjoy it. But if you don't, then I understand you'll need to move on to someone who provides exactly what you're looking for. No hard feelings from my side. Take care.

[@ThePentosin]

Nah, I'm staying. Your content is good, and much more valuable than pure subjective reviews. Do what you have to do to keep you sane. Cheers.

[@kevind4061]

comment

[@pierrecastanets1974]

I pity the fool that buys that sub

[@ErinsAudioCorner]

Pity tha fool!

[@mrbananaman8032]

Nothing you said has anything to do with its competitors. You are an ad.

[@ErinsAudioCorner]

I’m a subtract.