lightning69,

My advise to you would be to use this software called REW and run you sub and your mains together. This will help to identify if there is a problem. Pls pm me if you need help. Another thing to note is what is the settings on the AVR. Was Audyssey run? Maybe the internal trims are set too low.

I don't have Audyssey,  How do I use REW software?  What hardware do I need to run REW?

I don't have Audyssey,  How do I use REW software?  What hardware do I need to run REW?

I got a setup problem need expert advice here?

I did my calibration with the SPL meter base on the instruction on the setup manual provided by SVS.  I set all my speakers to 75db with my AVR main volume at 0 with the pink noise from my Denon AVR3805. Then I set the PC12-Plus to 80db with the AVR sub volume to 25% and the volume knob on the SVS at roughly 9 O clock position.  With this setting I play some music and movies and the bass is just too soft.  I have to turn the volume knob on the PC12-Plus to 12 O clock position to get good bass.  At this volume level, my SPL meter reading for my sub is at 95 to 100db.

Did I do something wrong here.  Why is my bass so weak when its calibrated to the same level as the other speakers?

looks like will have to drop by amcorp very soon

You need a laptop/desktop, a soundcard with line out and line in (not mic in) and some cables. Do a google search on REW. It is pretty easy to use, what you will get is a set of graphs showing your room response to a frequency sweep. You can move your sub around and see what is the most neutral integration with your fronts.

It  is a powerful tool, either that or use the test tones and move the sub around and measure with the SPL meter in your primary seating position.

Hmmm...sound card with line in is what i don't have.  Might just want to try different placement of the sub first.

watch ur back when lifting

watch ur back when lifting

I had the same issue with my Rythmik sub. Like you I had to turn up the volume to let the stronger bass come through. I think it's something to do with the pink noise and how it is reproduced through the sub and subsequently picked up by the SPL meter.

I think you all might have an issue which is not because of your sub. Previously I'm having an issue as mention need to turn up the volume very high to feel the bass and kick from the system. In actual fact it's nothing wrong with sub not outputting enough bass. The problem is you lack of dynamic mid-bass (100hz to 300hz) to blend into your sub which is why you feel there is a gap in the system. My DD-12 is very dynamic and all the while the Onkyo 805 can't produce the dynamic sound to push my speaker to follow the sub. A dedicated power amp might help you to improve the integration of sub and your main speakers and improve your mid-bass punch.

What you talked about, this "lack of dynamic mid-bass" do you think it's due to the receiver or main speakers? To my thinking, better to experiment with the main speakers first, then next the amp. Of course, with enough moolah upgrade both! 

got kaki said spore SGD750 nie for SVS wor

murah hor