Used: Headphone amplifiers

FiiO KA11

USB-DAC

FiiO K11

Display, gain switch, USB-DAC

FiiO K13 R2R

Display, gain switch, Tone control, USB-DAC, Bluetooth

FiiO Jiezi A

Tone control, USB-DAC

FiiO KA13

gain switch, USB-DAC

Topping DX5 II

Display, gain switch, USB-DAC, Bluetooth

Topping DX5 II

Display, gain switch, USB-DAC, Bluetooth

FiiO JA11

USB-DAC

Fosi Audio DS3, 32 Bit/768kHz DAC + Kopfhörerverstärker black

USB-DAC

FiiO K13 R2R

Display, gain switch, Tone control, USB-DAC, Bluetooth

FiiO JA11

USB-DAC

FiiO QX13

Display, USB-DAC

FiiO BTR17

Display, Microphones, Tone control, USB-DAC, Bluetooth

FiiO K7

gain switch, USB-DAC

FiiO BTR13

Display, Microphones, Tone control, USB-DAC, Bluetooth