warmer distortion

ozzy boy · 01-02-2008, 06:26 PM

Hi can you help I have a JCM 900 4500 how can I make the distortion smoother and get more bass out of it and make the whole thing sound warmer and smooth thanks

helix223 · 01-20-2008, 05:08 PM

Preamp and poweramp tubes. You might try a lower gain preamp tube. Give Eurotubes a call, they might have what your looking for.

Raise the bias (or lower it if it's too hot).

Don't know the analogy on the 900, but I changed a capacitor for my treble bleed cap on my gain channel on my DSL and it really smoothed out my distortion.

A few suggestions.

Adwex · 01-20-2008, 05:24 PM

I have a 4500, and I haven't used it in years for the same reasons. When it was all I had, and I had no choice, I got a graphic eq pedal (BOSS GE7), and put it in the effects loop, and raised the lower frequencies. Without the eq, it's got no bottom end at all. Put it in the loop, not "in front" of the amp.

I don't know how to smooth out the distortion, maybe different tubes, but I doubt it. EQ'ing some of the highs out, and raising the mids might help.

01-02-2008, 06:26 PM	#1 (permalink)
ozzy boy Junior Member Join Date: Jan 2008 Location: huddersfield Posts: 1	warmer distortion Hi can you help I have a JCM 900 4500 how can I make the distortion smoother and get more bass out of it and make the whole thing sound warmer and smooth thanks

01-20-2008, 05:08 PM	#2 (permalink)
helix223 Junior Member Join Date: Jan 2008 Posts: 1	Re: warmer distortion Preamp and poweramp tubes. You might try a lower gain preamp tube. Give Eurotubes a call, they might have what your looking for. Raise the bias (or lower it if it's too hot). Don't know the analogy on the 900, but I changed a capacitor for my treble bleed cap on my gain channel on my DSL and it really smoothed out my distortion. A few suggestions.

01-20-2008, 05:24 PM	#3 (permalink)
Adwex Senior Member Join Date: Sep 2006 Location: Long Island, NY Posts: 717	Re: warmer distortion I have a 4500, and I haven't used it in years for the same reasons. When it was all I had, and I had no choice, I got a graphic eq pedal (BOSS GE7), and put it in the effects loop, and raised the lower frequencies. Without the eq, it's got no bottom end at all. Put it in the loop, not "in front" of the amp. I don't know how to smooth out the distortion, maybe different tubes, but I doubt it. EQ'ing some of the highs out, and raising the mids might help. __________________ www.myspace.com/rockerlivemusic

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