One stereo input, one stereo output. The low internal resistance double triode 5687 is amplified by a pole and has a gain of about 17 times. The transformer and power board are placed on the top of the cabinet, and the potentiometer and the amplified circuit board are installed inside the casing. There is no vibration, no noise, no interference, and good heat dissipation, which is good for sound. The sound background is quiet, sound quality is transparent, analysis ability is high, the high, middle and low frequency performance is more balanced, and the dynamic vocal performance is excellent.
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