Truths with misinformation

Posted by BigguyinATL (M) on October 31, 2010 at 21:01:31

In Reply to: Mike Dzurko's primer posted by dean man jim on October 31, 2010 at 20:06:54:

(1) "A corner placement is usually the optimum placement for maximum, undistorted output with the most accuracy." While the corner placement will provide the highest output, it will product the most irregular response. A corner placement excites every room mode, leading to the maximum number of standing waves, which leads to the most humps and troughs in the response. A hump is worse than a trough and room modes cannot be equalized out!

Later on he says "Placing the sub(s) close to a wall will increase bass output but may also make the bass less even."

(2)-Multiple subs can yield smoother in-room response than a single subwoofer. Loading the bass into the room from two or more points can give a better balanced bass throughout the room. However: if the crossover frequency is low, (usually below 80Hz or even lower), the best bass may be with the multiple subs placed next to each other.

Yes the more subs the merrier... But they need to be distributed around the room. Toole found that for a typical rectangular room a pair of subs centered on the short wall have a slightly more even response than centered center front and center back. My own tests have shown a placement at the sides near the first sidewall reflection of the mains is a good place for a pair of subs to sit. I also like placement near the listening seat - or either side - the end table approach.

All this assumes a relatively low 80-90Hz crossover and normal sized - 2000-3000cuft rooms.
"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius

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Follow Ups Full Thread

Topic - How do you integrate a subwoofer with a stereo pair of speakers - navman 09:43:00 10/30/10 (20)

use putty and paint - hifitommy 16:54:31 11/10/10 (0)

REW - idiotec 15:37:21 11/10/10 (0)

Quick set-up - JerryS 11:15:59 11/07/10 (1)

Good luck. - Kal Rubinson 11:24:36 11/07/10 (0)

RE: Appreciate all the advice - navman 09:11:33 11/01/10 (0)

RE: How do you integrate a subwoofer with a stereo pair of speakers - Pro Sound Guy 07:11:03 11/01/10 (1)

Phase control doesn't fix phase! - JerryS 12:55:04 11/07/10 (0)

Mike Dzurko's primer - dean man jim 20:06:54 10/31/10 (1)

Truths with misinformation - BigguyinATL 21:01:31 10/31/10 (0)

What are you connecting the sub(s) to? (NT) - Kal Rubinson 14:52:51 10/30/10 (5)

RE: A 10 inch Klipsch sub - navman 15:03:58 10/30/10 (4)

RE: A 10 inch Klipsch sub - BigguyinATL 17:33:38 10/31/10 (0)

RE: A 10 inch Klipsch sub - cycletemp 20:51:32 10/30/10 (0)

RE: A 10 inch Klipsch sub - Kal Rubinson 15:44:27 10/30/10 (1)

Thanks... - navman 21:01:09 10/30/10 (0)

You really need to measure - caspian@peak.org 14:23:52 10/30/10 (0)

To begin with it's about the crossover - PeterH 13:29:28 10/30/10 (0)

Kal will be along shortly.. - Craiger56 10:43:45 10/30/10 (2)

Thx - navman 11:19:35 10/30/10 (1)

Some basics - Craiger56 13:09:09 10/30/10 (0)

Follow Ups

Truths with misinformation - BigguyinATL 21:01:31 10/31/10 (0)

Truths with misinformation

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