Subwoofer Set Up & Optimization

We cover everything you need to know for setting up a subwoofer and connecting it to your home theater system. This includes, level adjustment, phase, crossover setting, bass management, and connections.
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#subwoofers #bass

[@crow9553]

Took a while adjusting the gain knob on my subwoofer to get the gain (volume) at 0.0 db through my receiver but finally hit that sweet spot. You guys are great. Thank you for your expertise.

[@getoutofthekitchen]

I learn something every time I watch one of your videos. Thanks for sharing your knowledge.

[@applesauce2710]

Thank you audioholic for recommending two subwoofers to balance bass sound across the room. Before when I had one sub placed at the front, it was too punchy when listening at the front, too boomy at the back and null at the middle. I did try switching phase but no matter the value it sounded the same. But when I placed second sub in my room, I realised phase control for both subs now makes a difference. My room is approximately 10 foot squared and currently placed two subs at the front and back. What I do for phase is first set both sub to zero phase. Then I listen at the front, middle and back. If there is punchy bass at front and back, and null at the middle, set first sub phase from 0 to 180. Then have a listen again. All front, middle and back should now have balanced response. If bass already sound smooth across the room, try switching first sub phase to 180 and hear whether it creates punchy bass at front & back with null at middle. In that case switch back to 0 and leave it. If bass sound quite smooth and switching phase from 0 to 180 didn't make much difference, switch the second sub phase to 90, then go back to first sub and try listening at both phase 0 and 180. I hope this helps for anyone with dual subs and phase control. Note that I only did in my 10 foot squared room and unsure if same solution can work at rectangle or asymmetric room.

[@duranarts]

This is by far the most useful subwoofer setup video. The explanation is so thorough!

[@hilldog3450]

I just adjusted my RSL Speedwoofers controls with help from this video. Thank you!! P.S. I bought the Speedwoofer based off of your review, and it has been literally unbelievable. As musical as it is capable for home theater...

[@ellengriffin5196]

Hi Gene, I am new to Audioholics, great videos, very informative, thanks for doing what you do. Setting up a new home theatre this fall. My room is 24X16X8. From everything I have read or viewed, 2 subs are better than 1, and 4 subs are better than 2. The more subs the easier it is to eq the room and eliminate dead zones. My theater front end will be the PSB Imagine T3 Towers and Imagine C3 Center Channel. All other speakers in the setup will be PSB speakers. When it comes to Subs I am looking to go with either two SVS Ultra PB 1600, or 4 PSB Sub-series 450. The theatre will be a split of 60 % music listening- 40 % Home theatre. All the reviews indicate the two SVS Subs would do a great job below 20HZ whereas the PSB Subs would lack in this area. Having 4 PSB Subs would provide a great presence, but would their be a noticeable difference in performance. All thing equal what would you recommend?

[@hometheaterenthusiast1566]

I look at you guys as teachers because you are teachers. I appreciate all the information and thank you for sharing.

[@vinu_varghese]

Nice, thanks for the hint on the subwoofer level, I used to set the gain level on the subwoofer to the 12 0 clock position and have audyssey run through to - I wasn't much concerned with the subwoofer level audyssey setted. After watching your video, I looked at the level - and it was -10 db, So I adjusted the gain on subwoofer and managed to get back to -3 db :) and woohoo, my bass levels are way much better now :) - thanks guys

[@denver41]

Dammit, I love you guys! You guys are such a big help in me expanding my "audiophile" evolution. Thanks as always!

[@ericnortan9012]

GO BLUE!

[@dustang05]

For what its worth. I really enjoy the videos and keep up the great work you do. I am always looking forward to your next video. Maybe expand a little for us video files. Thanks.

[@BTinHD]

thanks...I realised I had not switched my subwoofer cross over to bypass....it made a big difference to the bass...thanks for the good information

[@nishalp1747]

Good day guy. Love your show. To comment on on what I found that works for setting up subwoofers (jbl sub 150, Tannoy ts8, Wharfdale whs10e, amp Yamaha rxa 1050): setting amp subwoofer gain to about minus halfway (-5 in rxa1050) and just around 60% power on subwoofer amp. Tried this with all subwoofers and it works extremely well. It also works for different amplifiers as well (tried on Marantz sr5007). What this setting does is use the signal only from the amp and uses the subwoofer amp to adjust volume. This opposes having a high gain in the amp and a medium gain in the subwoofer. To summarize, the lfe on amp is used only for the signal (not a highly amplified signal) and the subwoofer amp generates volume. The subwoofer is not amplifying an already (highly) amplified signal. Just to add that at minus halfway, sub doesn't necessarily cut off.

[@HighwayStrat84]

You guys helped me out with this video. I have a 25+ year old dbx 15inch 250watt floor subwoofer, and just recently the amplifier that went with the sub finally had enough. So now my classic sub cant connect to my pioneer elite receiver because the sub has speaker wire instead of today's plug-ins. So I was able to find a subwoofer amplifier that helped but still after all connecting to amp and receiver, my sub was still popping in and out, until you show to connect the lfe on the amp to the sub ports to the receiver, all is golden now, the subwoofer is a classic and it still shakes and rattles the house

[@josefermalino461]

Very informative guys it helps me a lot as a beginner audiophile 👌

[@BirdGuy431]

Great video. Thanks for providing this information. Enjoy all of your videos! You guys are extremely knowledgeable and helpful. Keep it up!

[@velocci6666]

Great video guys. Is there an equivalent video but for the AVR side?

[@AlexTechWiz]

Thanks a lot guys, definitely I learned something about sub-woofers today. Oh! and SPL meters, too :)

[@user-ff1kd6fe5k]

You guys are amazing. Setting up the sub was so hard until i saw this. Great double act

[@swllz]

Hi, Gene, I improved sound of my PSB 6i subwoofer a lot simply by putting a marble plate (15x17 inch) on top of the subwoofer. It improved the boominess a lot. My sub was tested by Sound&Vision to be a good sub to begin with. The improvement cab easily heard. I have no way to measure it. If you see this message, please try it and measure it in terms of FR and distortion. Thanks,

[@prayingmantiskung-fu2037]

Yea please do a video on Phase especially dual subwoofer phase ,that would be great. I have two Klipsch R-115SW In opposing corners and the back sub is turned slight off to the right , so both subs were not firing directly at each other

[@Prabhu_njd]

Praying mantis Kung-fu yeah me too.. i also have 2 klipsch r-112sw subs..

[@LFC-Star]

I hope you've the phase set to opposite of each sub.. one a 180 the other to 0.

[@CarAudioInc]

I'm big into car audio, so this was interesting to see how the home theater people do subs.

[@steventwilley9296]

How do find a longer hdml calb

[@ongomagic]

Learned a lot from this video thanks.

[@zombeat7376]

What you said makes a lot of sense the sub woofer is better at producing lower frequencies than the speakers and speakers at better at producing the mids and the high frequencies. Tbh I thought I knew best as I have been into cinema sound since the mid 90's and didn't want to deprive my speakers of the lower frequency. Its never sounded better. More powerful sound and damn the channel separation sounds better than ever too. Hats off. Thanks! P. S I have mordaunt short mezzo range and my woofer sounds even better too and just a really nice balance.

[@brians.4488]

Awsome!!! I just found out why my onkyo reciever was setting up my subwoofer at -15 db!!! Thanks guys!!!

[@davidraimundo7554]

Very helpful, had my sub connected via line-in, went to LFE, thanks!

[@deputysheriff5994]

Thanks guys for the amazing information you share!

[@SteveBoyland]

Great video and helped me alot in setting up my B&W Sub . Do you ever get into addressing Center speaker issues and set up? I have a Denon 2312 AVR and just went to Bi Amping by L and R front speakers. I have a 3.1 set up . Automatically my volume ( leverl ) dropped so I now have to really crank up the volume to around 60 db ( from Denon to TV) and I still cannot hear dialog on TVs and movies. I have watched many of your videos and they are first class. Speaker wire one was great and saved me a ton of money.

[@TheBinaryWolf]

Thanks for all the good info. If the front and rear speakers lack strength in, say, the 160Hz-200Hz range, would it make sense to raise the cut off level?

[@philiproche1607]

That drawing to your right there - looks like something my daughter drew! She drew and drew and drew and now she's studying at the School of The Art Institute of Chicago.

[@reddevil000777]

Great video guys. As I have said earlier on your other setup videos, I have learned so much after watching and reading your website. Amazing. I was lost but now I'am Found.. Allelujhia Praise Audioholics.. LOL.

[@Danielm316]

Thanks for sharing your expertise with all of us. I have a subwoofer and I can hear a radio station going through it how do I cancel that is possible that is coming from receiver or subs some how pick up radio frequency on their own ? Please help me out

[@ziggy8757]

do a minidsp tutorial to do some subwoofer optimization in different scenarios....

[@bgm1911]

great discussion and done well between the two of you. thanks.

[@Trojan0304]

Suggestions for Def Tech towers with subwoofers? Company recs line in from receiver . Should I try subwoofer line?

[@SwirlingDragonMist]

Also, consider your sub's frequency response relative to your other speakers. Some smaller subs only go down to the mid 30's hz, which may be on par with your stereo mains in a surround system. If the sub has similar bass extension to other speakers present, the Audioholic may want to consider running all 3, or just 2, or just 1 depending on how much bass energy their tastes desire and their acoustics support. Typically more subs are better as they give better seat to seat consistency, and obviously the solution is to upgrade the sub to have extension over the full bandwidth. But if they're all have similar extension, a well crafted floor standing speaker will have a pretty smooth crossover, and adding in a solo woofer to the party may go totally cool-aid man on your low end. :D OH YEAH!

[@haris525]

Gene - could you please do an integrated 2.1 subwoofer video. It feels that the best way to do this by getting a 2.1 channel preamp with cross over control - something like the parasound p5

[@SrinathKanugovi]

super clear explanation ... thanks a ton from Bangalore, India

[@clivedickens2817]

thank you for the help Gene

[@redlew012]

Great video I don't have LFE. But all the way cranked up where you guys say 200 mine says bypass. awesome! A week of searching. This is the only video I can find that gave me that information .thank you I've been looking for that as I am upgrading all of my system. Everything replaced but my Paradigm sub. The system I am upgrading to is a 7.2. I will be running a second sub "also line in". with two subs I was told to run at 180. What about the second sub on the line with line in.where do you set that one?

[@samsquanch67]

Good video! So in my case running a 2 channel through an amp and preamp probably don’t want to use the LFE rather use rca’s sub out to sub in on the sub correct?

[@gsxr1000jt]

Hi Gene, big fan love your work as always. I currently have 2 active ported 12" subs. I wanted to add 2 more. I was curious if I added 2 more subs that are sealed & same brand would give me both benefits of lows as well as punchiness.

[@pauldionne2884]

Would have liked to see info on auto power on/off/sleep/sense modes for the sub.

[@meangreen4500]

Mr. Gene I'm a longtime subscriber of yours and I appreciate all the knowledge you share with us simply minded people. I bought a Samsung ubd-k8500 blu ray player about 3 years ago just to find out recently that I dont have Dolby atmos format. All this time I thought dolby truehd was just another name for atmos and I'm probably not the only one. I spent all this money on my 9.2 home theater and I dont even have atmos although I have height speakers in place. I'm looking for an affordable good blu ray player that I dont have to spend 3,ooo dollars on. Any advice?

[@Pauldanny55]

Can You Do a Video How to Set Up the Yamaha YSW 315 Subwoofer ..

[@frankp9573]

could u please explain the buffered subwoofer output?

[@stevenmichael7770]

I've heard you say set them all to small and set the crossovers to 80Hz a bunch of times, but what does setting them to small actually do? What is the receiver actually doing with the low frequencies and how does it tie in with LFE + Main? I understand LFE, but not sure what's actually happening when you change the speaker size setting. On an older Denon I had, it would automatically set the crossover and send all the low frequencies to the sub when they were set to small, but it didn't have crossover settings in the menu. With the ability to set the crossovers separately what does the size setting accomplish? Thanks for all the great informational videos!

[@funyunsnotonions]

What about an older subwoofer like my JVC? I cannot get any sound although the receiver shows it's on.

[@leosibbi1818]

Great explanation, very informative.

[@mattgiunt]

Great video and you did touch on subs not turning on from auto mode.Well mine does not.I have an SVS SB 12 sub and a Yamaha receiver(673)and I cant get sub out of auto mode.I used YPAO to set up my theater putting the sub at half gain and the results set the sub at minus 0.5 which I felt was pretty accurate. So what can I do to get this sub out of off mode? Should I raise subwoofer trim level?

[@Jeff1960G]

Great video, thank you. I have the B&W ASW608 sub I just purchased. I have a Denon 9.2 receiver. Do I connect both "line out" cables to the receiver, or just one? Sorry, new to being an audiophile. I have a B&W 9.1 setup going (2 atmos speakers included) (no amp, just receiver)

[@bareknuckles2u]

Thanks for the video, guys!

[@geraldperry7779]

I miss Marshall, always did good reviews.

[@dsertwq]

I'm trying to run two powered subwoofers from one line out. The subs don't have line outs. Is my best option to use a Y cable and hook them up to the LFE in? Thanks for the video!

[@mattk8019]

Gene, Marshall or Hugo(?) Curious as to how (in your opinion)one could really on a wireless subwoofer connection could or should be considered.... Naturally a solid connection is always best as that's a no brainer. Are these realizable? Is there a better wireless option then another or should we ever consider it? MANY thanks fir your efforts in all your time & resources from myself and many others. I love watching these !

[@joeydelmarsjr.646]

so when calibrating your speakers with an SPL meter, what dbs should you start off at??? on the AVR

[@titan2793]

thank you, I always wonder if my Sony receiver auto cal was working and now I have a good guide line to follow. and I found a sound level meter I purchase from Radio shack. thanks again. now I will watch more videos on setting up 5.1 and what your thoughts are on Dolby atoms.

[@ericnortan9012]

I have an Onkyo txrz 820, Atmos capable. I've done some research because I was/am considering adding Atmos speakers. From what I gather the tech is solid, the problem is the studios are doing a crappy mixing job. None of the streaming services offer it yet either, at least the ones I use.

[@felixsantosmolina8872]

Hi audioholics, I would like to know if I can use Bose redline single cubes with the Pioneer Elite VSX-LX101 and should I connect them to the receiver.I also have the powered Acoustimass 9 sub unit.Any info would be greatly appreciated.

[@childfree83]

Thanks for the info boys. Much appreciated.

[@gregwx]

Awesome, thank you guys this has been very useful and interesting.

[@Fotoklasika]

I set all speakers crossover to 80hz, LFE 120hz. What about subwoofer manual filter setting? 50-150hz... I set 80hz on it too. Others set to maximum 150hz (or more if subwoofer support) .Thank you!

[@valdeze]

Thanks for this, awesome.

[@VandergriftMoefies]

I've literally been trying different stuff with my subwoofer for like 3/4 years now. Done every trick from every video, placed it everywhere in the room. But I just can't get that damm sound I want from it. It always sounds so uneven. In some parts (for exempel a movie) I can't hear anything from my subwoofer, not even a little. But in other parts it feels like it's going to blow up. I never get that smooth bass that feels like it covers everything, from voices, to music, to the gun and explosion sounds. And sub and speaker are actually pretty decent. I've heard them in action by others and it sounds great (almost the same space as the room I use it in). Maybe one day I wil get that sweet, sweet sound!

[@kaushmaisuria]

Great video, thanks for the advice.

[@cornerspeed92]

Great video, it seems like your talking more home theater then home HIFI. Just bought a 400 watt KLIPSCH, my Yamaha has one (subwoffer) out RCA jack. Im lost on the L/LFE is that for home theater or home HIFI? I received one RCA cable, and bought one single cable, which do I use?

[@al8603cl]

Good info. One thing I have never ever found discussed anywhere is a more and more common situation where you deal with adding a dedicated sub to a multiple powered tower setup. I would love to hear your input to this situation. I came to realize that while the powered towers were great from a perceived loudness perspective they lacked the deep visceral grunt capability needed for a real punch in the gut perspective that a dedicated sub gives you. So, in my case after listening to many opinions, especially concerning multiple subs. I came to the conclusion that if you have quality powered towers and you want deep down grunt power you do not need multiple subs. What you need to add is a sub that can really dig deep. Set your AV system crossover for it's lower setting. In my case 50hz. This allows the dedicated sub to do its thing and allows the powered towers to do what they do best, that is mid and upper bass. The mid and upper bass frequencies are far more directional and give the same apparent affect as having multiple subs acoustically while the dedicated sub handles the deep bass grunt work whose frequencies are far far less directional. This is my opinion and observation on this more and more common consumer situation. I would love your opinion on this subject. As I said, a great many people buy powered towers thinking that they are an ultimate package only later to realize they are great but, they do not give you the deep powerful low level punch that many people really want. Especially when watching SciFi or action flicks.

[@Audioholics]

This sounds like a good setup but there are a couple of concerns: 1. you will truncate the LFE signal to the sub if your processor doesn't have a separate LFE crossover setting, 2. You lose some of the benefits of multi-sub modal averaging since all of the bass sources are not covering the exact same frequency bandwidth. See: kzbin.info/www/bejne/aniqZIqle9Rsh5o

[@al8603cl]

Thanks for the reply and attachment I appreciate it. My AV Receiver has LFE crossover settings. I set it at 50hz. I agree with the multi-sub modal comment but, I believe that this is minimized to an extent with the fact that I have 4 powered towers for mains and rears and they are all emanating the same frequencies above 50hz where most of the content is and, as freqs below 50hz are largely non directional I believe it a very close approximation of a multi sub setup.

[@Audioholics]

Yes 4 powered towers will give you some of the benefit of modal averaging, but you do lose it some of it with the sub operating below 50Hz which may or may not be a problem. Non-directional does NOT mean modal properties are to be ignored. It's best if you pull some in-room measurements at your listening positions to see what's going on.

[@al8603cl]

I have down loaded a few bass tone generators. And, I went to my local Shack and bought a db meter. I have 4 DefTech BP9040's powered towers 300 watts per tower to the built-in subs and an SC8000. I have adjusted to the powered towers and the sub to output an even sound level so that the sub is not over powering the towers and so that the towers sound pleasing to my ear at the various freqs that the tone generator is generating from 20hz to 120hz. Am I missing anything? Is this sufficient? Or is there something I am missing completely that you would recommend?

[@mastertrading1]

thanks a lot for the video,very explicitly.

[@felixsantosmolina8872]

I forgot I also have a Kenwood Stereo Control Amplifier, can I combine it with the rest of my equipment mentioned before?

[@Davek2sb]

Do you need to use the left and right inputs? I’m using a y-splitter on my subs currently, is this a good or bad thing?

[@xxxYYZxxx]

Re subs phase setting: a trick to boost super deep bass is to set the sub's (2nd order) low pass one octave below the receiver's high pass setting, and then flip the sub 180 degrees out of phase. The low pass reverses the phase 180 degree per octave. This gives the sub a 12db boost at 40hz and below, 6db at 60hz, and 0db at 80hz. A 1st order (6db/octave, 90 degree phase/octave) low pass can be set two octaves below the xover (20hz with an 80hz xover) with the sub out of phase, offering a 12db boost at 20hz, 6db at 40hz, and 0db at 80hz. A 2nd order LP at 2 octaves down can be set with the sub in phase for a ridiculous 24db boost at 20hz, 12db at 40hz, and 0db at 80hz. This technique can be combined with EQ to boost just the very deepest bass. Eg, if a 2nd order LP is used at 40hz, the EQ can be set to -6db at 60hz, and -12db at 40hz, and only the bass (edit: bass BOOST) around 20hz-30 remains. Of course the gain needs to be made up somewhere, and this technique will quickly run subs to max excursion near 20hz long before their output around 80hz is tapped, necessitating at least 8 subs or more just to keep up with the mains, which isn't unreasonable for audioholics. I use this technique in my car stereo but not to boost bass, but rather to cut as much midbass as possible due to excessive cabin boost, and slope the EQ in a reverse fashion to smooth out overall response.

[@skrutinizr9372]

I've never had Audyssey be able to get through a room setup with a sub attached to the system. Tried with three different subs- if the sub is on at all, it errors out on the setup. My favorite sub is an old Velodyne, so I lowered the volume on the sub to the point where it barely has output- but it still errors out on sub level. I ended up running the setup without the sub, then manually adding the sub in the setup. It ended up sounding ok in the end, but what a pain. Years of being around aircraft means I don't have a good enough ear to really set my stuff up manually- but I'm constantly having to change sub volume while in use. Thankfully, I separated my 2 channel music system from HT to simplify... I like brute force in music, but just can't get the HT to be clean, clear and accurate.

[@ntokozontokozohopewell7289]

So if I want to connect my sub active with DVD does hav sub input I can take wire from speaker to the sub speakers level?

[@cthuthu333]

How do I find out the model of infinity reference stereo surround sound set I currently own? I believe it's a reference 2000 with a set of monitors, center channel and 12" powered sub

[@milkofthepuppy]

Thanks guys always a big help

[@tommytippietoes882]

I’m using a SVS sub in a music Hifi situation with a stereo receiver which doesn’t have ANY of the options you’ve mentioned for setup. How do I properly set it up with a stereo amp (AXR100)

[@TheFrugalAudiophile]

How about a video on how to set up at Moes with true height speakers?

[@cristiantolbaru7153]

Hello guys! How about the integrated stereo amplifier with only preouts or dedicated Subwoofer out, as the Yamaha A-S801 you reviewed some years ago. Should this be connected in the LFE of th sub or use a Y cable and connect it to the line level of the sub? Also, will the signal of the Yamaha sub out be strong enough to connect via a splitter two subs? Thanks and waiting for more great videos!

[@AQAVAR]

Do you recommend to use POLYFILL in factory made SUB ? Got Energy ESW-v10 subwoofer but it's empty inside. Thanks.

[@centauro74]

I have a SVS subwoofer, it has red (LFE) and white inputs, when I use a splitter the output of the sub gain 6db. Does the crossover from the receiver still works like that?

[@jamieslaughter4204]

Also here's the name brands of the two subs that I have the 12 in is Monoprice and the 8-inch is Insignia... The Monoprice is the one that does not have the phase control switch on it the Insignia does have the face switch on it.. just thought you would like to know what name brands they were I didn't know if that mattered thank you great video to definitely help me out with the crossover 👍👍👍👍👍

[@dsertwq]

I've been needing this video for the last twenty years of my adult life.

[@LFC-Star]

I was considering getting a Klipsch R-8SW use one of these in the rear pared with my Klipsch R-100SW in the front. Good idea?

[@Methodical2]

I need clarification. If you are using the subwoofer preamp out from AVR to the sub's LFE, you must always turn the crossover dial on the subwoofer far right (i.e. 200hz) to avoid doubling the crossover points, correct? What's the difference between LFE filtered and LFE unfiltered? Thanks

[@scottb721]

Just adjust the x-over in my avr down to 80hz. I noticed the sub level is set to -3.5db. Should I bother rerunning Audyssey for that ?

[@dlee985]

Hey Gene, At time stamp 6:38, you were talking about EQ settings. Are you referring to AVR or the actually Subwoofer? Example I have a Denon, and it has options for MultiReference, Flat, etc...

[@redlew012]

80 is standard for surround highs..... what hz do you set your av receiver on for line in bypass (white and red) on sub....10 in paradigm

[@mccarthyd6603]

Help!!! Just watched the video and I am confused? I thought you were suppose to increase the subwoofer crossover to the max only on the setup? On my Yamaha I set the crossover to the max when I initialized the Ypao... after adjusting I then set the speakers to small ( B&W M-1) then adjusted the crossover on my Yamaha to 80 Hz AND my Sub also to 80 Hz.....do I need to keep my Sub at 150 Hz all the time? It sounds great now but not sure if I need to increase the Hz on my Sub to the max all the time going forward? Thanks for the recommendation from the experts on this...love the channel by the way and just subbed 👍😍

[@garyausten5939]

Do you know, on a Denon X4700H if you can automatically set it up so that music will play at a lower sub boost than movies (not adjust the volume manually whenever the change occurs)?

[@realworldautomotive]

Really enjoyed your video. I'm setting up a system (Sony STR-DN1060, Old JBL Studio Series speakers and subwoofer) and noticed a distinct difference when setting sub level on auto-cal as compared to test tones. Level sub with pink noise test tone to the other speakers, and the AVR setting comes out close to zero with the sub volume at half-way. Meanwhile you hear very little bass for real-world listening. With auto-cal, a series of low tones are used (no pink) and the AVR sub-level comes out at about +10db, and the base sounds good. Learned this a while back using the Avia DVD that pink noise doesn't work for sub-level. Lot of Googling and I don't see that mentioned very often.

[@moviestarsnake]

If I ran the calibration on my Pioneer Elite, and then switched the phase on my subwoofer from 0 to 180 because the 180 provided better bass, do I have the rerun the calibration? So that it can calibrate according to the 180 setting?

[@aegisofhonor]

I know this might be the wrong kinda video but it does have to do with base at low frequency optimization. I have an old pair of Pioneer Elite TZ-7s from the early 90s, is there a way to base manage the base of those speakers to optimize their base response to the best possible level? The specs rate the speakers to 20hz but I have never been able to test them to see how low they can really go though. I have them on a basic set up using an older STR-DB840 as a pre-amp and a Pioneer SX-V90 as the power amplifier.

[@sonicboomin]

please.do a video demonstrating multiple subwoofer calibration and phase control. I have 3 . could use your help

[@deceptionz187]

I have 4 subs playing all at once

[@666Necropsy]

is there any information i can view about having two crossovers within 20hz. i have never heard about this hump/ cascading effect?

[@droid8472]

I have a onyko TX nr555 with Polk tl1600 I was reading somewhere to set all speakers and subs to 120 hz with those speakers. would the be something different I should do

[@crownman3440]

I have two DEF tech powered towers. Is it OK to use another separate sub woofer. If so, should I do the sub woofer crawl the same way?

[@bl1969]

New to your vids thank you for all the information!

[@themergen1]

What is your opinion of The Paradigm Persona Subwoofer. It has six 8-inch subwoofers. 1,700 watts continuous and 3,400 watts of peak power. I watch and trust your opinions highly. Thank you, Frank Morgan in Chiang Mai Thailand

[@ryanr6240]

What's better, using an spl meter to get all speakers to 75db or to run the AVR correction program?

[@9715715646]

I have been using jamo 210 sub with denon x1200 but there's a lot of port flattering noice during deep bass.can u giv me any suggestions or precise settings to avoid the same...

[@arashjahn]

I have a passive sub setup in a sonotube with two JLw6 10's in it hooked up to a Butt Kicker BKA1000N. Both the filters are on, the crossover dial is set to 60Hz, Volume at 4 of 10, and the Onkyo pre-pre had its Audessey set the gain to -10.5dB. After watching the video, it seems the settings are off. Any suggestions ?

[@mccfowler]

Hi guys. I'm new to your channel and I'm learning a lot already. I bought a budget, beginner setup and the sub stopped working. I have a Sony STR510 AVR combined with Harmon Kardon HKTS15 surround speakers. I inherited a used Kenwood ks-303ht sub from my cousin who passed away. Plugged it in but it's not working either. Am I to just assume my AVR is toast or is there some troubleshooting I can do. I don't know if the kenwood sub was working before I got it.