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Feature

Carefully debugged circuit with stable performance, quiet and no noise
Adopt 6J1 electron tube, classic collocation
Adopts 12V DC power supply, internal stable boost to 100V to ensure the performance of the tube
The headset can be pushed to 300 ohms, the general recommendation is 16-150 ohms
A cost-effective preamplifier with warm, mellow, sweet and transparent sound