Svs pb 2000pro not performing in small room

[j_garcia]

You can start with positioning since it doesn't cost you anything.

These are inexpensive, but also not so attractive for a room that isn't a studio

https://www.amazon.com/TroyStudio-Periodic-Bass-Traps-Acoustical/dp/B0B9MVJN6L/ref=sr_1_8?crid=34VQ69T2KRJ11&dib=eyJ2IjoiMSJ9.6AMrWWTgBhxKzP24t2a1AS26SUaJYUQtRPlvqhEWZ-IGDpwGVldQacsWTzf-DP6_5rS-YhkhpS3l-hB4_ofjtWpLjp0Dk2W-4T3uGT3SQoy6RA11ShmTfSyzVNPduRmgfXy3T9QDQrOaXvUSeLYTK-izTnx8RYzI8uLkNiS3N8BEfS6QEBVW8FmPAwfiRIWKiMkf7Kz-ItuH59ftYjZql1wYmsNp2pf55BCXirMQw-SZLEosXaYk9wQ-U-_jgbJxDJtj1-cWdApm5pDhIxLn1OzRf3XlWXkBKWwhZ-ppAL0.yGi7NqTyhoXM1hJETENBkdR9Z7yrX2WgK1XlHp3hH3w&dib_tag=se&keywords=bass%2Btrap&qid=1730415463&sprefix=bass%2Btrap%2Caps%2C461&sr=8-8&th=1

 

[privateeye]

I just received this sub. My room is 11x11 only. I have denon x4800h sony oled Dali opticon 2 FLR and pansonic 4k player. I did subwoofer crawl 3 times. When i put it randomly between fronts it was complete NULL no bass in my sitting position. Then did crawl 2nd time deep bass was good but mid bass was zero. My settings are LFE and crossover to 80hz. In 1 place hollywood movie like spectre opening scene deep bass is good but same place my indian bluray does not give good bass there. Wtf is happening? I cant belive pb 2000pro not performing in small room it must give chest pounding bass
OVERALL I AM NOT HAPPY

Did you use bass sweep tones from YouTube when doing the subcrawl? A lot of people suggest using favorite songs to test, but that's not a reliable method. For the best results, I’d recommend using the subcrawl method with this video:

. Once you find the ideal position, Audyssey can fine-tune things even further.

 

[hardcore_gamer99]

Did you use bass sweep tones from YouTube when doing the subcrawl? A lot of people suggest using favorite songs to test, but that's not a reliable method. For the best results, I’d recommend using the subcrawl method with this video:

. Once you find the ideal position, Audyssey can fine-tune things even further.

Exact same video i did ot use in crwal but on my sittig position 70 to 80hz wa having null whatnow

 

[William Lemmerhirt]

Exact same video i did ot use in crwal but on my sittig position 70 to 80hz wa having null whatnow

If you have a null around the XO point, you can incrementally add up to a few feet of distance to the subwoofer. This can help impulse response as well as shore up the null. You can also try to raise the XO and see what happens. This is assuming you’ve exhausted all locations, as positional EQ is the first thing to sort out.

 

[hardcore_gamer99]

If you have a null around the XO point, you can incrementally add up to a few feet of distance to the subwoofer. This can help impulse response as well as shore up the null. You can also try to raise the XO and see what happens. This is assuming you’ve exhausted all locations, as positional EQ is the first thing to sort out.

What is xo point i am newbie. Can parametric eq in svs app help in null

 

[William Lemmerhirt]

What is xo point i am newbie. Can parametric eq in svs app help in null

What is xo point i am newbie. Can parametric eq in svs app help in null

Sorry. We forget sometimes lol.
XO=crossover.
You can try the phase setting in the app, but I can’t recall if it’s infinitely adjustable or just 180°. If it’s just 180 then you might find it causes an issue somewhere else in the frequency response(FR). The distance tweak(adding distance to the sub in the AVR)as its sometimes called may also cause issues too, but the adjustments are more granular, and you still have to measure so you know what’s happening.
As for EQ, you can try, but I wouldn’t boost more than 6db, and I’d ONLY do it as a test to see if it changes anything. I don’t think it will, but it’s good to have as much information as you can. The distance tweak is easy to try and can be very effective. Basically telling the AVR that the sub is farther away, will make it fire sooner. Like milliseconds sooner. But if you get right, it can help with integration of the mains, and help “tighten”(yuk) up bass.

 

[privateeye]

If you have a null around the XO point, you can incrementally add up to a few feet of distance to the subwoofer. This can help impulse response as well as shore up the null. You can also try to raise the XO and see what happens. This is assuming you’ve exhausted all locations, as positional EQ is the first thing to sort out.

This is great advice and worth trying even when you don't have any issues. Oftentimes adding a few feet to the distance tightens up the response nicely.

 

[hardcore_gamer99]

Sorry. We forget sometimes lol.
XO=crossover.
You can try the phase setting in the app, but I can’t recall if it’s infinitely adjustable or just 180°. If it’s just 180 then you might find it causes an issue somewhere else in the frequency response(FR). The distance tweak(adding distance to the sub in the AVR)as its sometimes called may also cause issues too, but the adjustments are more granular, and you still have to measure so you know what’s happening.
As for EQ, you can try, but I wouldn’t boost more than 6db, and I’d ONLY do it as a test to see if it changes anything. I don’t think it will, but it’s good to have as much information as you can. The distance tweak is easy to try and can be very effective. Basically telling the AVR that the sub is farther away, will make it fire sooner. Like milliseconds sooner. But if you get right, it can help with integration of the mains, and help “tighten”(yuk) up bass.

you want to me to actually measure distance with tape first? If yes should i consider front of subwoofer or full body of subwoofer cabinet to measure? from my seat

 

[William Lemmerhirt]

you want to me to actually measure distance with tape first? If yes should i consider front of subwoofer or full body of subwoofer cabinet to measure? from my seat

No. Don’t measure with tape. Use the audyssey results. Measuring the actual distance from a sub doesn’t take into account the time to wave form and if the sub has any DSP. Those will be accounted for in the audyssey calibration.