I know, I know, it is absolutely not NECESSARY and I do not think that I see a need for it. I however see that it might be USEFUL in SOME cases when a recording was mastered by a complete idiot.

So, I wonder if anyone comes across to very high targeting and to very comfortably made equalizers. I know that my requirement for this thing would be too unrealistic for anybody to meet but who know what is out there… This is what I would like to have in an equalizer that I would consider to buy or at least to try.

1)      Analog Equalizer

2)      6-8 channels, not more is necessary

3)      Buffer in, Buffer out, unity gain.

4)      Under 50R, high current output impedance.

5)      Solid State operation

6)      RL-only all high-pass and low-pass, first order

7)      3-6 dB up/down per channels, no more is necessary.

8)      All high-pass and low-pass are individual filters with dedicated at least one core per upper and lower knee.

9)      All coils are with L-cores of high permeability: amorphous or nickel

10)   Options for open up any knee of each filter

11)   Options for bypassing the unit actively and passively.

12)   Non-auditable sonic signature in passive or active bypass mode

13)   Non-auditable sonic signature in “engaged” mode with all EQ zero out.

14)   Calibration of attenuation up-to 0.25dB

15)   Comfortable operation and indication.

A site visitor pointed me out to German company: Sound Performance Lab that does an interesting Equalizer. I never hear it but it might be interesting to try. It does not have all features that I would like to have bit it is a good start.  I wonder if my local pro shops have one like this to rent over a weekend…   

http://www.spl.info/index.php?id=82      

The have one with no memorization that I have see before: Passeq

http://www.spl.info/index.php?id=108&L=1

Rgs, the Cat

I absolutely remember posting about A vey special "vintage" EQ a while back, perhaps in the context of LF; but I can't remember more than that.

IMO, the 1st order of business is to avoid the effing "DSP".  Let someone else get it right ONCE, then I will pony up the cash to plug one in.

Romy. as far as I know, no one has EVER made an equalizer that meets all of your criteria.  If someone did, I would immediately budget/save for one.

The recently-deceased Gordon Holt (July, '09; RIP) was a tireless advocate of [real-time] contouring to acheive equalibrium relative to recordings.

I don't like saying it, but so far it appears that the most safe and sane road to decent LF uses "real-time" contouring.

Romy, from your schematics posted so far, it looks like you are VERY close to being able to "conture" your "channel" "X-overs".  I am WAY too selfish and lazy to mock-up any "insertion losses", but it looks like you might just be able to meet your own EXTREME demands on a per-channel basis with some sort of glorified "L-Pad"?

Best regards,
Paul S