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Post subject: Fender the twin red knob
Posted: Sat Oct 05, 2019 7:57 am
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Hobbyist
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Joined: Wed Oct 02, 2019 1:44 pm
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Hello. I should completely retrain a fender the twin red knob. With the need to be able to get a warm sound for blues rock. What kind of valves do you recommend? Thanks


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Fender Play April 2019
Post subject: Re: Fender the twin red knob
Posted: Mon Oct 07, 2019 9:34 am
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Every amp is different (even seemingly identical models) and optimizing the tube array of necessity requires some experimentation. Try several brands to determine which of them sound pleasing to you. Just keep in mind that the quartet of power tubes should be matched as to brand and transconductance. For those I'd recommend the Tung-Sol STR's.

Arjay

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Post subject: Re: Fender the twin red knob
Posted: Wed Oct 09, 2019 8:52 am
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Aspiring Musician
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The red knob Twin has more punchy gain than a HRDX in the More Drive channel. To tone down the gain, try a low gain tube in the 1st preamp and the Phase inverter, 12AT7 etc.


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Post subject: Re: Fender the twin red knob
Posted: Wed Oct 09, 2019 9:05 am
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Joined: Fri Feb 05, 2010 4:31 am
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Location: Province de Québec, Canada
Retroverbial wrote:
Every amp is different (even seemingly identical models) and optimizing the tube array of necessity requires some experimentation. Try several brands to determine which of them sound pleasing to you. Just keep in mind that the quartet of power tubes should be matched as to brand and transconductance. For those I'd recommend the Tung-Sol STR's.

Arjay


Preamp tubes must be check too.
Power tubes need a bis check and adjustment if needed.

Ps59 may old amps are not in top shape most of them never see a qualified tech.
Put some other brand of tubes is not warranty to a better tone. Amp may need more.

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