Evans Pre-amp

Jim Johnson · Post by **Jim Johnson** » 18 Mar 2002 7:18 pm

Hey Folks,
I need directions in setting up my rack
system with a power amp, Evans Pre-amp and
Lexicon effects processor. I tried to
hook it up and I get a loud roar when I
turn the amp on.
any help will be greatly appreciated.
Jim

Jerry Roller · Post by **Jerry Roller** » 18 Mar 2002 7:59 pm

Jim, did you try just the pre-amp without the Lexicon to see if that much works OK. I would do that first and if does not make the noise without the Lexicon then the trouble is either the Lexicon which I doubt or the way you are hooking it up. Which Lexicon model do you have? After you try the pre-amp
without the Lexicon you could email me or someone on the forum for help. You should first of all be very sure that ALL your cords are in good condition.
Jerry

Jim Smith · Post by **Jim Smith** » 18 Mar 2002 8:15 pm

A loud roar sounds like a shorted cable, especially if you get little or no output. If it's more of a 60 cycle hum, you probably have a ground loop.

Jim Johnson · Post by **Jim Johnson** » 19 Mar 2002 4:27 am

Thanks Guys, I appreciate your help.
Jim

Pat Burns · Post by **Pat Burns** » 19 Mar 2002 9:19 am

..Jim, FWIW, I have the same rack system, I run from the volume pedal to the Evans pre-amp to the Lexicon to the power amp...I found that I had to turn the "input" on the Lexicon way down to about 9 o'clock (on an MPX-100) or maybe less than 20% of the input capacity....I turned the output on the lexicon to about 3 o'clock, or maybe 80% of output capacity...the culprit in my rig was the Lexicon input volume...

Jim Johnson · Post by **Jim Johnson** » 22 Mar 2002 5:03 am

Lori
Please close this thread. I received the
info I needed. Thanks for your help.
Jim

Joey Ace · Post by **Joey Ace** » 22 Mar 2002 7:00 am

Transfered to Electronics, for Archival reasons.

Closed per Jim's request.

-j0ey-