Teac UD-501 DAC

The UD501 is a DAC utilising two burr-brown PCM1795 chips, and an output stage based on the MUSES8920 opamp. It features true 1-bit DSD support (unlike many modern DACs which convert to PCM internally) and also has an upsampler separate to the DAC chip itself, as well as the interesting option to bypass the DAC chip's internal oversampling filters (mostly) and run it in something akin to NOS on an R2R DAC. More on this later. It also has some rather nice design aspects such as a dual-mono linear power supply to power the left and right channels independently. Not to mention a chassis build quality and aesthetic that still feels premium today.

COAXIAL RCA jacks x 2 (0.5 Vp-p/75 ohms) PCM data sampling frequency 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz bit rates 16/24-bit OPTICAL Optical digital connectors x 2 (24.0 to 14.5 dBm peak) PCM data sampling frequency 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, bit rates 16/24-bit USB Type B connector x 1 (USB 2.0 compliant) PCM data sampling frequency 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz bit rates 16/24/32-bit DSD data sampling frequency 2.8/5.6MHz Analog audio outputs XLR XLR jacks x 1 pair Output impedance 88 ohms Maximum output level 4.0Vrms (1/full-scale, into 10 kohm) Frequency range 5Hz - 80kHz (-3dB) S/N ratio 115dB Distortion 0.0015% (1kHz) RCA RCA jacks x 1 pair Output impedance 22 ohms Maximum output level 2.0Vrms (1/full-scale, into 10 kohm) Frequency range 5Hz - 80kHz (-3dB) S/N ratio 115dB Distortion 0.0015% (1kHz) Headphones output Connector Standard 6.3 mm stereo jack Maximum output 100 mW + 100 mW (into 32 ohms) Power supply AC 120 V, 60 Hz Power consumption Max 13W (Auto power save standby mode: 0.1W) Overall Dimensions 290 (W) x 81.2 (H) x 244 (D) mm, 11.4" (W) x 3.2" (H) x 9.6" (D) Net Weight 4.0kg (8 15/16 lb)