18w Muddy Tone Cranked

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Littlewyan
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18w Muddy Tone Cranked

Post by Littlewyan »

I’ve built a hybrid amp with an 18w Lite2b preamp going into a Vox AC15 power amp. If I run the tone and volume on 10 I find the sounds gets quite congested and not good for rhythm. If I back off the tone a bit it starts to clear up. Is this normal on this preamp?
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xtian
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Re: 18w Muddy Tone Cranked

Post by xtian »

Not normal, I think. Might be blocking distortion?
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pdf64
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Re: 18w Muddy Tone Cranked

Post by pdf64 »

Schematic? Voltage chart, at idle and at the onset of clipping?
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Littlewyan
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Re: 18w Muddy Tone Cranked

Post by Littlewyan »

All sorted. Made the bias hotter so it’s bang on 100% and used a smaller preamp coupling cap value.
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