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Showing 1 of 2 conversations about:
xDuoo MT-603 Pre-Amplifier
ElectronicVices
2940
Nov 8, 2022
No gain, no volume control and what looks to be an LED lit tube... this is just an input switcher, not a line stage pre-amp. If the tube is in the signal path it isn't doing much.
alkc
3
Nov 15, 2022
ElectronicVicesHow do you know the tube is not doing much. Description says it improves the sound.
DefifinitleyDea
26
Mar 10, 2023
alkcWow you really are gullible
everythingeverything
0
Mar 10, 2023
ElectronicVicesIt’s a tube buffer. If you had a tube preamp with volume control and adjusted the volume to unity gain, would you say that the tube isn’t doing anything? Go look at the measurements of any tube head amp in low gain mode and you’ll see that it’s definitely adding harmonic distortion. I expect the same is true here.
everythingeverything
0
May 17, 2023
everythingeverythingFWIW it's not exactly unity gain. With a new production JJ tube replacing the bad-out-of-the-box one included with the device, I'm measuring about 0.8dB of gain.
ivan.ferdinand
0
Dec 10, 2023
everythingeverythingHello sir, can you please help me? if 2 input goes to cd and turntable, and 1 outout to speaker, how to add headphone amp?
everythingeverything
0
Dec 10, 2023
ivan.ferdinandYou should be able to use RCA splitters on the output of the MT-603 to connect both devices. Just make sure the cables between these devices aren’t excessively long.
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