Originally Posted by AmerCa
I don't think I've seen this mentioned yet, but have you tried playing individual test tones/bass sweeps through an app or YouTube and confirmed that indeed there's very little output? Have you tried playing a familiar movie/album with lots of deep bass? You said you have a sound meter. With it and test tones you can verify how loud you sub is playing at different levels. ,
Regardless of proper sub crawl, if you move around your room you should be able to get to a spot where the bass sounds louder/better. This is only to confirm that you're not getting bass anywhere in your room. Undistorted bass certainly doesn't equal indaudible bass.
Reports of SVS subs not being "loud enough" are very common around here. Some claim that they fixed their issue by following the the advise of members here, while others were never satisfied with the sound; some others concluded there was something wrong with the amp. You should call SVS and ask for guidance. They can help you to troubleshoot the possible issue, and offer alternatives.
Originally Posted by darthray
This the way, I also read this. A sub should never be set to the max level for the gain.
With a setting around, 12 o'clock. The calibration level should be near 0 , or near that area.
If the level is still around -20 on the AVR reading, after calibration. It has to be a placement problem.
And maybe, coming from a lesser sub. That might have been boosted at the mid frequencies. To make the previous sub, sound more impressive,"I think the main issue is that from around 50-80hz the sub's performance is very low with this one been".
Compare to a more flat response from his new sub, and might not be use to flat response bass.
Originally Posted by AmerCa
You can try an SPL app on your phone in the meantime, as well as a test tone generator app. Or you can also look for individual test tones in your tube or the web.
If there's healthy output below 40hz, (and above 80hz) maybe you're dealing with a very weird and big null in your room in the 50-80hz range. Individual test tones help to better indentify the issue. However, with the SPL meter you ordered you could use the free software REW, to analyze more in depth your room frequency response. This software will be an invaluable tool in the future, even if you don't want/can't learn it right away.
SLP apps are no substitute for a real, calibrated one, but are good enough to give you an idea of the loudness in your room. The fact that there's good output below 40hz is a good sign. Try moving around your room while testing bass tones and see if there's are spots where the bass sounds louder/cleaner. If that's the case, it's just a matter of relocating your sub.
The level on my receiver is at 0 and was so after the calibration. During the calibration, my sub was set at -22 volume (this is the gain right?).
The levels go from -60 to 0. Right now it is at 0 because the level of bass coming out is essentially nothing or very close to it at -20.
So I turned the volume on my sub to -5. I then listened to two videos to measure the SPL. The videos I used was the one in my last post with the frequency range and then the one below. For now, I used the SPL app tester.
Both videos the sub got to 88db.
BTW my small 6" logictech sub had an 89db reading. It sounded better in the higher frequencies too.
Any one want to test this on their sub and see what they get? Is an 88db number in the correct range or is it lower than what it should be?