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Amp problem?
Posted: Wed Jul 16, 2008 6:29 am
by cheyenne
My current rig is as follows: BBE Bmax preamp, Carvin DCM 1500, Carvin RL210 bass cab.
Recently I've noticed after everything warms up during playing I'm getting a "building" hum that starts quietly and gradually gets louder, degrading my signal. I can walk up to my amp rack and tap it on the top, and it will quit for a while? What do you think?
I've switched out all the cords with new ones, even tried a different preamp, and still get the hum. The Carvin power amp is the only thing common. It is less than 3 months old and has never been run hard or gigged.
Opinions?
Re: Amp problem?
Posted: Wed Jul 16, 2008 11:38 am
by whojamfan
Call ,Carvin, as it sounds like you've isolated the problem to the amp. It should still be under warranty(unless you bought it used). The only other thing I could suggest is try another power amp(you could probably rent one)and see what happens. Either way,get on the phone to Carvin whether it's under warranty or not, and see what they say. Good luck.
Re: Amp problem?
Posted: Wed Jul 16, 2008 10:13 pm
by johnallg
Sounds like a loose power supply cap - cold solder joint - that's my guess. Yup, call Carvin. Unless you feel lucky with a soldering iron and opening her up won't void the warranty.
Re: Amp problem?
Posted: Wed Jul 16, 2008 11:58 pm
by whojamfan
Absolutely be careful if you open it up, as ther are voltages stored in the amp that can kill you, even if it is unplugged. I don't know your skill level, so please excuse me if I'm telling you something you already know.
Re: Amp problem?
Posted: Thu Jul 17, 2008 6:41 am
by cheyenne
Talked to Carvin, Im sending it back and their replacing it with a brand new one.
Re: Amp problem?
Posted: Thu Jul 17, 2008 4:40 pm
by whojamfan
Killer, they're pretty good about standing behind their gear.
Re: Amp problem?
Posted: Thu Jul 17, 2008 5:58 pm
by cheyenne
I've been using Carvin stuff for alot of years. Its great "middle of the road" gear. Great stuff for the gigging musician.
Re: Amp problem?
Posted: Fri Jul 25, 2008 1:02 pm
by qwezirider
cheyenne wrote:Talked to Carvin, Im sending it back and their replacing it with a brand new one.
Can't beat that!
Re: Amp problem?
Posted: Wed Aug 06, 2008 6:29 pm
by whojamfan
Did you get your amp back yet?
Re: Amp problem?
Posted: Wed Aug 06, 2008 6:46 pm
by cheyenne
Yep! gotta brand new one.
Re: Amp problem?
Posted: Wed Aug 06, 2008 7:17 pm
by whojamfan
Gotta love it!!! Play Loud!!!