When watching a blu-ray rental:

Friday, April 15, 2011

Is One Sub Better than Two?

I just read this on AVSForum. 

"If your room has typical dimensions--20 x 14 x 8 ft., about 2,100 cu. ft.--one well-designed subwoofer with an internal amplifier equal in size to the full output of your receiver (full power for 1 channel + 1/8 power x the number of other channels) and a 10-inch or 12-inch driver should deliver solid deep bass extension and ample output for music and movie soundtracks. On the other hand, if the room is larger than usual (4,000 to 8,000 cu. ft. or bigger) or has a vaulted or cathedral ceiling, you should definitely consider running an extra subwoofer."

So, doing the math, my receiver is 140 watts:

140 + 17.5 (1/8th of 140) x 5 = 787.5 watts.  I have a MartinLogan Depth-i which is spec'd at 900 watts Peak.  Therefore going by the AVSForum post my sub is ideal for my 20x12x8 room.

3 comments:

  1. Personally I prefer 4, if you count the powered subs in my front and center channel definitives and my prosub 1.

    ReplyDelete
  2. Well played Woody! I love Def Techs. We have the STS in our audio room. You should check them out.

    ReplyDelete

Do you prefer 2-channel or Multichannel music?