DIY Class A 6J5 Vacuum Tube Preamp Preamplifier HIFI Headphone Amplifier Kit

Specification Model 6J5Name Headphone Amplifier DIY Kits1 16 HZ 28 5KHZ2 Headphone Impedance 16 600ohm3 SNR 108db4 Channel separation 100db5 Distortion 0 003 distortion noise but not all of the second harmonic modified sound 6 Input and output standard 3 5mm headphone jack7 NE5532 op amp8 Tube 6J5 or 6J39 Power requirements ±12 15V DC power supply 10W above transformer filament require 12V more than 2A10 Size L 10cm W 6 3cmNote This DIY Kit need to be soldered by yourself The photo shows assembled product just for your reference Package included 1 x Headphone Amplifier DIY Kit