Greetings to all,
I am primarily a lighting tech, but do sound occasionally. I have come across a situation in a local school & require some advice. The sound is controlled via a rack containing an AKG mixer, Marantz CD player, and JBL amplifiers (not 100% certain on brand).
The mixer has 7 channels (could be 8) of "gain only" control, i.e., 1 pot per channel. The vocal mics sound fine. However, I am having some issues with the frequency response on CDs I am playing through the CD player, a Marantz model PMD325. I am getting a lot of high frequency hiss on both commercial & custom burned CDs.
I have a Rane ME15 graphic equalizer available for "tweaking". Since the mics sound fine, I don't want to change their response characteristics. So, I was wondering if I could take the output of the CD player into the EQ, then run that to the CD input on the mixer. Presently, the CD output is R/L channel unbalanced direct into the mixer.
Ideally, I want to take the CD output from the <balanced out> into the Rane EQ <balanced in>, then go EQ <balanced out> to AKG mixer <balanced in> CD. Would there be any impedance mismatch issues or excessive voltage issues to worry about with this arrangement? In simple terms, I DON'T want to damage anything...
Thanks for your suggestions--John
I am primarily a lighting tech, but do sound occasionally. I have come across a situation in a local school & require some advice. The sound is controlled via a rack containing an AKG mixer, Marantz CD player, and JBL amplifiers (not 100% certain on brand).
The mixer has 7 channels (could be 8) of "gain only" control, i.e., 1 pot per channel. The vocal mics sound fine. However, I am having some issues with the frequency response on CDs I am playing through the CD player, a Marantz model PMD325. I am getting a lot of high frequency hiss on both commercial & custom burned CDs.
I have a Rane ME15 graphic equalizer available for "tweaking". Since the mics sound fine, I don't want to change their response characteristics. So, I was wondering if I could take the output of the CD player into the EQ, then run that to the CD input on the mixer. Presently, the CD output is R/L channel unbalanced direct into the mixer.
Ideally, I want to take the CD output from the <balanced out> into the Rane EQ <balanced in>, then go EQ <balanced out> to AKG mixer <balanced in> CD. Would there be any impedance mismatch issues or excessive voltage issues to worry about with this arrangement? In simple terms, I DON'T want to damage anything...
Thanks for your suggestions--John