Massdrop x Airist Audio R-2R DAC

HIFIMAN EF400 Balanced R2R DAC Headphone Amplifier - Great Condition

Musician Draco R2R DAC Decoder USB/I2S/AES/Opt/Coax

Musical Fidelity M1 Digital Analog Converter DAC 24 Bit 192 KHz Capable

Musician Draco R2R DAC Decoder USB/I2S/AES/Opt/Coax Input Or SMSL DO100 Decoder

WYRED 4 SOUND DAC-2 Digital to Analog Converter D/A Converter #DO

FiiO K13 R2R Desktop DAC & Headphone Amp, 24Bit DAC, Bluetooth Streaming (Black)

FiiO K11 R2R USB Desktop DAC & Headphone Amplifier, 384kHz/24Bit DSD256 (silver)