General Asylum General audio topics that don't fit into specific categories.

---

[ Follow Ups ] Thread: [ Display  All  Email ] [ General Asylum ]

---

[ Alert Moderator ] [ Edit ] [ Delete ]

---

Re: Let's get back to basics: What test signal are you measuring and where is the meter placed for the measurements?

167.239.216.119

Posted by Larry on November 16, 2004 at 13:52:20

In Reply to: Let's get back to basics: What test signal are you measuring and where is the meter placed for the measurements? posted by Richard BassNut Greene on November 16, 2004 at 10:57:34:

The room is new to a quality system. It is the dreaded great room with a fireplace under a mild peak cathedral ceiling approx dims 18 by 20 with the TV in the corner/speakers on each side. Two open ended hallways out the back. It also has a stone fireplace on one side and a patio door on the other side(covered with fabric vertical blinds). With the speakers pulled out 10" in front of the TV, surprisingly it doesn't sound bad except for way too much mid-bass. The bass starts nulling around 60 and down, but thats livable. Imaging and soundstage could be better, but with my layout, I can live with that also if I can clean up the bass. I only used 1/3 octave warble tones. I have since obtained several other test CD's, but have realized as you inferred, the proof is in the listening. And it needs help. I have moved speakers, seats and TV all over the place and while every change makes a difference, none is very significant. I had ASC do a thorough design analysis and tried all kinds of absorption in the corner behind the TV to simulate the 11 traps they recommended. I also built a false wall in the corner to simulate the effect of drywalling the corner. Contrary to what most acoustics folks thought, the corner boost effect is not as big a problem as the modes out in the room itself. I am getting some boost from the artificial corner behind the speakers where the TV comes against the wall, but putting absorption in that area kills the air dead and only helps 1-2 db. Traps out in the room would probably help a lot, but I just can't work them in, or helmholtz devices either. Spent the last year talking with folks at CEDIA and experimenting, and while it pains me greatly, I'm convinced a pure signal path is not in the cards for me, so it comes down to finding the best equip available for a reasonable price. FYI, I was planning on spending up to 12k or so on the preamp/processor/EQ. Hope this helps. Thanks.

This post is made possible by the generous support of people like you and our sponsors:

Signature Sound

[ Signature Sound Lounge ]

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---