Nobsound® Luxury 6J1*10 Valve Audio Hifi Stereo Pure Tube Headphone Preamplifier Assembled Board Diy
Parameters: Filament voltage (Uf) = 6.3V; Filament current (If) = 0.17A; Anode voltage (Ua) = 120V; Anode current (Ia) 4.5 ~ 12mA; The second gate voltage (Ug2) =…
Little Bear B4 Portable Vacuum & Valve Tube Headphone Amplifier HiFi for Phone
Performance parameters: Frequency response range: 0-100K-0.1dB Gold-plated input / output socket NE5532 OP chip (you can upgrade it to a other better brand OP chip. Like BB or…
Nobsound 6J1 HiFi stereo tube Pre-AMP Valve Power Audio Preamplifier with Power Adapter for CD/MP3 player
Important Tips: about the tube.please do not deep plug it in socket.just plug it in half deep is OK.because the tube easy crush Features: 1,PCB Circuit layout is…
Nobsound® 6J1 HiFi stereo tube Pre-AMP Valve Power Audio Preamplifier with Power Adapter for CD/MP3 player
Important Tips: about the tube.please do not deep plug it in socket.just plug it in half deep is OK.because the tube easy crush Features: 1,PCB Circuit layout is…
Little bear P2-1 BLACK color HiFi valve tube headphone amplifier amp preamp
Quick guide: First: I must tell you that. how is this headphone amplifier design. Actually it’s tube buffer + amplifier work model.both function is alone, the music input…
Little bear P5-1 BLUE tube valve puffer Preamp Preamplifier amplifier ver1.2
TIPS:when you got the package. you need assemble the preamp board into blue box by youself. it’s easy. then you can use it. (the list picture is assembled….
Little bear P5-1 CLEAR 6J1 tube valve puffer Preamp Preamplifier amplifier ver1.2
TIPS:when you got the package. you need assemble the preamp board into blue box by youself. it’s easy. then you can use it. (the list picture is assembled….
Nobsound® Little Bear P8 SEPP Pure valve Tube Headphone Power Amplifier Pre-AMP metal Stereo HIFI audio Preamplifier Aluminum chassis
Technical Parameters: 1) input terminal: a group of RCA 2) the output terminal: A: RCA output.work as preamplifier . B: a 6.35 earphone socket. 3) frequency response: 12HZ—100KHZ…
Bravo Audio Ocean Mini Valve Class A Tube Headphone Amplifier
Bravo Audio has been making some waves with their line of Tube powered line headphone amps as well as the Tube powered guitar Booster (please see my other…
Nobsound® Latest 6Z5P+12AX7B Valve Vacuum Tube Pre-AMP preamplifier DIY KIT for Audio Hifi / DIY Lover best Choice
Main Parameter: Input jack Standard: RCA Block (4 sets of input, one-output) Frequency Response: 10-26kHz (+/- 0.11dB) about 15 times the voltage amplifier Total Harmonic Distortion: 0.078% Signal…