Video Asylum

amps for IB subs

24.20.160.4

dave j

I am finishing up an in-wall HT installation and am planning on using a couple of PE/Dayton 15" Infinite Baffle subs. My receiver has many settings for crossover points etc. so I was planning on using a standard stereo amplifier to drive the subs. (split the mono sub pre-out from the receiver as input to the L/R channels of the stereo amp) My question is that most stereo amps have a quoted frequency response of 20-20kz and some LFE go below this. Can I use a stereo amp in this application? Also, the speakers are rated at 350 watts and 89 db efficiency but my amp is a high current 100 watt/ch. I am figuring this is enough power for a small room with the dual 15" drivers installed as infinite baffle. Any input on this?
Thanks,
Dave

Follow Ups:

RE: amps for IB subs - Hornlover 07:39:50 09/12/08 (0)
A stereo amp should work fine. The 20-20k spec is a required specification, although the amp most likely has response below 20Hz. 100 watts should work fine too, unles you wish to bring the police to your door sooner.
RE: amps for IB subs - johnvb 19:49:58 09/11/08 (2)
Are you installing these drivers in a manifold, mounted somewhere outside the room? Then check out this link, which is the best site for IB subs. BTW, most IB owners use proamps, such as the Behringers. I don't have IB subs, but do use Mackie pro amps, rated at 1400 watts (mono) each, on my sonotubes.
- http://ibsubwoofers.proboards51.com/index.cgi (Open in New Window)
- RE: amps for IB subs - dave j 08:30:07 09/12/08 (1)
  Thanks for the link. I will need to spend some time there. I am using a manifold above the TV. The TV is set into the wall (A 34" sony widescreen XBR tube TV)in a closed cabinet. There is a spare storage room behind the cabinet. Above the TV cabinet is another cabinet section about 6" tall and 40 inches wide and 22 inches deep with the front opening into the listening area. The two 15" IBs will be mounted on top of the upper cabinet (back of the speakers open to the back room) and firing down into the cabinet (manifold). The cabinet opening will have a grill. I will take some pictures soon when I get a few more details finished up.
  dave
  - RE: amps for IB subs - johnvb 10:25:01 09/12/08 (0)
    Post your project in the appropriate section of the forum, and Thomas W and the others will be happy to help you out.

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