EQ's... why doesnt everybody have one?


Just browsing around the systems on this site, i knoticed that very few have equalizers. I realize some claim they introduce unacceptable noise but i would hardly call my Furman Q-2312, at %>.01 20Hz-40kHz, unacceptable. This $200 piece of equiptment ($100 on sale at musiciansfriend.com) replaces several thousand dollars in assembling a perfectly linear system in perfectly linear room, and in my opinion, accomplishes the task better than any room design could no matter how well engineered. It brought my system (onkyo reciever, NHT SB-3 speakers and Sony CD changer) to a level i could not have dreamed. It extends the SB-3's frequency response by at least 10 Hz to a satisfying 30 Hz without any rolloff or sacrifice in clarity, but the greatest improvement was definately in the Mid-range, around the SB-3s crossover frequency of 2.6kHz. The clarity of vocals, strings, guitars, brass... anything in this range rivals that of uneq'd systems costing well into the thousands of dollars... my total cost; $800. One of the more supprising differences is a marked improvement in immaging, it think this might have to do with eliminating several resonances in the right channel caused by my back wall (the left back wall has a curtain over it). The second my dad heard the difference he got on my computer to buy one for himself, he couldnt even wait to get back to his own, he then kicked me outa the listening chair and wouldnt get up for the better part of an hour.
-Dan-
dk89
DK- I think you will find as you progress to a more revealing system, you will hear a veiling from the Beringer. Your point about the tone controls is well taken though. I can't listen to 70% of my cd's on my new highly "resolving system". I'm actually thinking about going "backwards" to a tone control preamp. A totally transparent EQ/room correction device would be a godsent, but I don't believe that animal exists yet. I'm currently using a PARC that does it's attenuation very transparently and am now setting up a Tact unit just for comparision. So far I lean towards the parc because it doesn't change the overall sound of the other components I've chosen.
Hi all, the PARC was the missing link and worked wonders in my room after installing ASC SuperTraps, etc..
Memeboy...I think you are right..."Many people are afraid of them because they could be used to make things worse and they are not confident in their abilities to know when things are better or worse". I have had equalizers before, but they never gave me the satisfaction that the DEQ2496 does.

I think that the reason that the DEQ2496 satisfies is the Real Time Display and the automatic equalization feature. You can turn on the white noise signal, see on the RTA how lumpy the frequency response is. Then, after pushing the EQ button, watch the high bumps slowly move down and the low spots move up, until the response is flat 20-20K (or matches some curve that you have set up). All the while you can listen to the changing signal. Then put on a recording and listen with the EQ in, and EQ out using the BYPASS button. As I said, it "does a job which needs to be heard to be believed".
The degredation in sound of a signal going through a $200 component should cancel any of the benefits of a high end system right?

The Parc is an exception since the electronic signal is going through high end internal components and shouldn't lose much right?

I'm just thinking out loud and searching for reactions to my statements. I haven't tested any of this.
I have to agree about the benefits of using EQ. I also use the Behringer DEQ2494 (kept completely in the digital domain) in a highly resolving system, and I can tell you that it does wonders. I run a Krell transport into the Behringer, then into a Muse 296 processer (I wasn't quite as impressed with the Behringer's on-board DACS), then into a BAT preamp all kept in a balanced configuration. I was using a Z-Systems RDQ-1 before the Behringer, but the Behringer has much more functionality and a much better interface than the Z-Systems, and I could not hear any difference as long as the Behringer is kept completely in the digital domain. I think the Behringer is so inexpensive because they sell so many since their primary market is the pro audio industry. Anyone with doubts (I certainly did) should try one for themselves.