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APPJ 1502A Tube Headphone Amplifier

All Drops

APPJ 1502A Tube Headphone Amplifier

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Groch37follow
3y
Mine just arrived, extremely well packed by Massdrop, thank you.
Very nice looking amp, solid, good workmanship, everything but the tubes/ they look like they were assembled by gollum; jack nasty.

Fortunately I planned ahead and installed 2 Tung-Sol 6v6GTs and a New Old Stock GE JAN 6189W (12AU7a equivalent). Let it burn in for about an hour, it sounds GREAT. Musical, warm and tubey, but with a lot of detail and shimmer at the top.

I hear no noise. Will have fun rolling a few more old tubes I have around.

The only thing I do not like are the metal feet, they look nice but are sliding all over the place.

Question: is the H/L switch on the front for volume (gain) or headphone impedance?
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