Sell Pure electron tube amplifier and headphone preamplifier

Description

Description: Mini-rolled belt use, super small Preamplifier, the shell size of **8X*6X*3MM. Electronic Tube is a military-grade super-small type, circuit stability, high reliability, full I do my music room, maintain musicianship and fluidity of the excellent music, sweet voice, music Appreciation, Fidelity voices, electron tubes used in the low voltage power supply plus or minus two, high efficiency and low magnetic leakage, symmetry, dynamics, Distortion (1) In paragraph **7 of the front plate electronic EQ and electronic volume control, adjustable own favorite music. I really do my music masters (2) Shows a unique window of electron tubes, using a warm orange-red background light. (3) Input impedance: **0K; Headphone Amplifier output impedance: ******0 Europe (the proposed mix of high resistance headphones) Main Parameters SNR: *0dB Frequency Response: *0Hz***0KHz Distortion : &#***4; 0.*1% Headphone Amplifier output power range: **0mW***0Mw Thus impedance:****0&#**7;