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- Users: Martin Ostli
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Review by 'Martin Ostli' on item 'Little Bear BK 6N11 12AU7 6922 Tube valve Headphone Amplifier'
the unit is good and the sound to. but, there is a little bit of adjusting when you get the unit ( probably not all but it is a possibility. the tube glows but the LED that is located under the tube is so strong that they override the light from the blower in the tube. i have modified mine...- Martin Ostli
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