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DIY Class A 6J5 Vacuum Tube Preamp Preamplifier HIFI Headphone Amplifier Kit
Specification: Model:6J5 Name:Headphone Amplifier DIY Kits 1.16 HZ-28.5KHZ 2.Headphone Impedance: 16-600ohm 3.SNR:> 108db 4.Channel separation <-100db 5.Distortion: <0.003% (distortion noise but not all, of the second harmonic modified sound) 6.Input and output: standard 3.5mm headphone jack 7.NE5532 op-amp 8.Tube:6J5 or 6J3 9.Power requirements:12-15V DC power supply 10W above transformer; filament require 12V more than 2A 10.Size: (L)10cm * (W)6.3cm Note: 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