Assuming that I had found the ideal postion to place my woofer, is it normal that I have to turn the volume knob to almost maximum to hear the booming effect? Or should I increase the output level of my receiver? Thanks.

If you walk in the room, does the bass gets louder?

Booming effect... you mean so it sounds like a horrible car subwoofer?

No, it's almost the same.

No I don't need another horrible car subwoofer sound
Maybe the question I should ask is: Where is the volume knob turned to on your subwoofers?

On both of my Hsu subs the gain is set to around 9 to 10 o'clock.

Then this does not sound normal at all. Check all the LFE settings in the receiver (LFE gain for DD, DTS and PCM and then check subwoofer).

UNless this is just a timezone problem and you have to set the gain to a higher clock setting!

That's funny!

My Sunfire based sub is set to about 30%. There is no AVR compensation.

I have my EP500 set at 8 o clock for gain with -5db on reciever.

My EP500 is set at 7 o'clock (that's Central time ) with a calibration setting of -3 dB. I've got a closet door in the room that rattles if I don't keep it ajar during calibration or heavy LFE sequences in movies. Movie playback levels greatly depends on the LFE track. I generally run from -8 to +5 dB off of calibration, with DTS format needing the higher boost for whatever reason. At these settings, the sub can be felt throughout the entire house, some 4300 sq ft.

If you've got your 350 maxxed out, I'd say you should look at your AVR settings.

Scott

Every room, receiver, sub, and position, will result in different results. It is not normal that you would have to put your sub gain on maximum, unless you have the receiver truned way down, but even then seems unlikely.

Do you have one of the newer 350's? If so, they are much more powerful than the older 350's. I owned a 350 about 5 years ago, and the gain was about at 11 o'clock position. Then when calibrating all the speakers to around 75dB, that placedthe receiver around 0dB level for the sub channel.

Have you calibrated everything with a Radio Shack SPL meter or built in receiver mic? Are you bypassing the crossover on the sub, and just using the receiver crossover settings? Do you have the other speakers set to "small" with and 80hz crossover?

Also, keep in mind with music you won't hear that lowww boom boom compared to good movies with low LFE, unless you liten to RAP.

Placement is also very important.