Stewart PR-500

Steel guitar amplifiers, effects, etc.

Moderator: Shoshanah Marohn

Post Reply
Mike Randolph
Posts: 212
Joined: 7 Sep 2004 12:01 am
Location: Cook Minnesota, USA

Stewart PR-500

Post by Mike Randolph »

I picked up a Evans rack mount system with a Stewart PR-500 power amp in it.I can only get hum out of one speaker.Other side works fine.First time owning one of these.Any help on the wiring to the power amp would helpwould be greatly appreciated. Mike
ZumD-10,Zum SD-10 Emmons Lagrande D-10GOLD TONE DOBRO,Webb,STEEL KING,NASHVILLE400
User avatar
Stephen Cowell
Posts: 2875
Joined: 6 Jan 2012 8:13 am
Location: Round Rock, Texas, USA

Post by Stephen Cowell »

Have you pushed the mono/stereo button?
New FB Page: Lap Steel Licks And Stuff: https://www.facebook.com/groups/195394851800329
Mike Randolph
Posts: 212
Joined: 7 Sep 2004 12:01 am
Location: Cook Minnesota, USA

Post by Mike Randolph »

Hi Stephen,yes I tried that.No change.Thanks
ZumD-10,Zum SD-10 Emmons Lagrande D-10GOLD TONE DOBRO,Webb,STEEL KING,NASHVILLE400
User avatar
Stephen Cowell
Posts: 2875
Joined: 6 Jan 2012 8:13 am
Location: Round Rock, Texas, USA

Post by Stephen Cowell »

Are you running only one cord into the left/mono input? A picture of your wiring might help here... can you swap the cord to the other input and get sound out of the other speaker(with sw in stereo mode)?
New FB Page: Lap Steel Licks And Stuff: https://www.facebook.com/groups/195394851800329
Post Reply