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Tube phono preamps
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<blockquote data-quote="Mars" data-source="post: 673042" data-attributes="member: 817"><p>I took the phono preamp to Louis last night, for a quick listen on his audio system :dop: He has a 60watt per channel SS amplifier with Tannoy dual concentric speakers. </p><p></p><p>We listened to Mark Knopfler and the sound was impressive. We could hear minute detail and the music was engaging. When you turn up the amplifier without the record playing there is a bit of hum. I am sure I can get the noise levels lower, but this is still way lower than the music level. Inaudible at listening levels.</p><p></p><p>This confirmed what I found listening at home. The music playing through the on board phono stage in solid state amplifiers (I'm sure there are exceptions) sound 2 dimensional by comparison to the tube phono stage, specifically this modified TCJ RCA design. </p><p></p><p>The power indicator led on front was also bit too bright. I am going to tame it with a bigger series resistor.</p></blockquote><p></p>
[QUOTE="Mars, post: 673042, member: 817"] I took the phono preamp to Louis last night, for a quick listen on his audio system :dop: He has a 60watt per channel SS amplifier with Tannoy dual concentric speakers. We listened to Mark Knopfler and the sound was impressive. We could hear minute detail and the music was engaging. When you turn up the amplifier without the record playing there is a bit of hum. I am sure I can get the noise levels lower, but this is still way lower than the music level. Inaudible at listening levels. This confirmed what I found listening at home. The music playing through the on board phono stage in solid state amplifiers (I'm sure there are exceptions) sound 2 dimensional by comparison to the tube phono stage, specifically this modified TCJ RCA design. The power indicator led on front was also bit too bright. I am going to tame it with a bigger series resistor. [/QUOTE]
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Tube phono preamps
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