|
Speaker Asylum General speaker questions for audio and home theater. |
|
|
|
Speaker Asylum General speaker questions for audio and home theater. |
|
In Reply to: Re: Have you ever measured your room? posted by gdg on December 24, 2005 at 13:42:40:
Hi Gerry my room isn't overly large but it is well damped by furnishing etc.
I had some 4 or 5 db peaks around 48,47,46,45 Hz. The 1 dB variance was the average I was given with a digital SPL meter.This was more attributed to objects in the room shaking than standing waves.All my measurements were done from my listening position,10 feet infront of the speakers. I know what kind of bass problems your talking about as I've heard them. I honestly don't know how to describe it.Once I moved to a speaker with a controled and gradual roll off in the bass area the bass problems were eliminated. The graph above are my speakers with an unstuffed cabinet measured out of doors. Of course they are stuffed now which dampened bass resonance even more.This plot is the frequency response of the raw, unstuffed, unfiltered cabinet. The black trace is the total output, the red trace is the driver output and the blue trace is the port output. Just for grins, the gray trace is the predicted total output from MJK's MathCAD worksheet. The Martin Kings worksheet is extremely accurate.These fellows don't fudge specs.Look around and see how hard it is to find a speaker with a gradual roll of like these..it ain't easy.The speakers do have a baffle step correction circuit ,which could be considered a form of passive equalizer I suppose?
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: Have you ever measured your room? - Gmood1 12/24/0514:10:07 12/24/05 (5)
- "Look around and see how hard it is to find a speaker with a gradual roll of like these" = actually it's easy - Richard BassNut Greene 09:11:28 12/27/05 (4)
- Show me these speakers you speak of. - Gmood1 10:13:43 12/27/05 (2)
- If you want bass roll-off under 50-55Hz. then you have to buy speakers with sealed enclosures - Richard BassNut Greene 11:14:12 12/28/05 (1)
- Re: If you want bass roll-off under 50-55Hz. then you have to buy speakers with sealed enclosures - Gmood1 12:40:21 12/28/05 (0)
- Re: "Look around and see how hard it is to find a speaker with a gradual roll of like these" = actually it's easy - Gmood1 09:46:11 12/27/05 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
