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…

Little Bear B4 Portable Vacuum&Valve Tube Headphone Amplifier Stereo Hi-Fi Amp built-in battery

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 NS-01E Mini Tube Headphone Amplifier Stereo HiFi Amp Audio Preamp (Purple)

Specifications: Output power: ≥1100mW (32ohm) Adapter Headphone Impedance: 18-600ohm Total harmonicSale Price:$50.00Read More[amazon-product-reviews]

Lysignal 6J1 Tube Box Headphone Amplifier Preamp DC12V Black

Used as a Preamplifier,connect directly with power amplifier to improve your HiFi system. Unique DC12V1A power input with power adapter. 2pcs 6J1 tubes with optimal integrated circuit will…

Nobsound® Douk Audio 6J1 Single-ended Class A Tube Headphone Amplifier Hifi Pre-amplifier

Parameters: Input impedance: 47k Output Impedance: 32-300 Ohm 32 ohm load output voltage and output power: 3.3v, 500 mw 150 ohm load output voltage and output power: 6…

HIFIMAN EF2C Vacuum Tube Headphone Amplifier

The Step potentiometer is designed for precise control and accurate channel balance (with less than 0.0001 in errors). This results in excellent channel balance and soundstage. The hybrid…

Douk Audio 2P2+VMOS Class A Hybrid Tube Amp Headphone Amplifier USB DAC HiFi Pre-Amplifier

Technical parameters: Amplifier Type: Tube + VMOS Class A Output power: > 500mW Frequency response: 20Hz-35KHz Headphone Impedance: 32Ω-300Ω SNR: > 90dB Tube: 2P2J (can replaced by Soviet…

Nobsound NS-01E Mini Tube Headphone Amplifier Stereo HiFi Amp Audio Preamp (Black)

Specifications: Output power: ≥1100mW (32ohm) Adapter Headphone Impedance: 18-600ohm Total harmonicSale Price:$50.00Read More[amazon-product-reviews]

Qinpu – Q3 – Integrated / Headphone Amplifier

The Qinpu Q3 is a compact hybrid tube integrated amplifier and headphone amp which delivers the luxurious sound of vacuum tubes from the ‘Golden Age’ of hi-fi along…