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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

ADCOM GFP-565 Preamplifier Upgrade
ADCOM GFP-565 Preamplifier Upgrade
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Old 13th July 2020, 11:20 PM   #1
bigskyaudio is offline bigskyaudio  United States
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Location: Helena, MT
Default ADCOM GFP-565 Preamplifier Upgrade

Our audio shop has closed due to retirement and I would like to share our mod for the GFP-565. I hope that this will help some of you who would like a little better sound quality but the mod will improve clarity first and foremost.
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Old 14th July 2020, 12:26 AM   #2
jackinnj is offline jackinnj  United States
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ADCOM GFP-565 Preamplifier Upgrade
Best thing you can do for the ADCOM GFP-565 is to replace the under-specified transformer.

I have two of them!
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Old 24th July 2020, 09:12 AM   #3
ken.berg is offline ken.berg  United States
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ADCOM GFP-565 Preamplifier Upgrade
Congratulations on your new adventures. I will be leaving the workforce myself in October and can already feel the future at my door.

Any chance you might share your Parasound preamp insights at some point?
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