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In Reply to: Now I have entered into the active x-over "world" posted by Thomas on September 26, 2001 at 04:01:02:
I use a digital Parametric Eq (Z-sys) into a DSP digital x-over system (meridian speakers) and have set up my system using instruments etc and can just tell you this : The theoretical or measured "perfect setting" sounds like doo-doo ;)
Eventually , I tuned my system so that it sounded good to me despite its departure from "flat" etc - at the end of it all , you have the vagaries of the room , the speakers , the recording and the fact that there is no reference as to what perfect sound is , your aim is to enjoy the music as best you can and allow it to create whatever reality floats your boat , do it by ear.
What you can do is make or get a test disc (there is an excellent test disc called Soundcheck 2 - Alan Parsons) and use a decent digital SPL meter to get a baseline as to freq etc and take it from there but I wouldnt agonise too much if you arent on the straight and narrow
I
Rodney Gold
Follow Ups:
Thanks,I think I'll try also to compensate for the room acoustics, so speaker/filter settings will probably not be flat. I have listened to a reference system with ±0.5 dB between 20-20000 Hz at listening position. I'll just try to keep the sonic impression in my mind. The first impression of that listening session was that my speakers delivered to much bass in its original (passive) version. Now I have lowered bass level, and it sounds more similar to the reference system. About the EQ though I have no real idea of what to listen for (the EQ settings is made by tilting the curve between 20-80 Hz ±3 dB).
Thomas
Sound "memory" has been proven notoriously unreliable, even over periods of just two seconds.
I am very well aware of that. BUT I can still note that the bass output was too high in my previous system compared to the reference system. This was very obvious. With respect to fine tuning, I agree, it is impossible to do any such adjustments by "memory".Thomas
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