Rotel RA-1570

Two years ago a DAC featuring an asynchronous USB input was news.

Today, a DAC without async USB is news and as far as I am concerned, a showstopper.

In the amplifier world, async USB input is still rare.

Rotel is one of the exceptions to this rule.

I wouldn’t be surprised if in a couple of years a USB input is as common as a RCA.

Asynchronous USB 24 bit / 192 kHz
Wolfson WM8740
2x 120 wattAB into 8 Ohm

Website: Rotel
Price: € 1599

Calyx Femto DAC

DAC with volume control.
Claimed dynamic range of 132dB, THD of 0.0001% and RMS jitter of 500 femto seconds.
USB 24/192 max. Synchronization not specified but probably asynchronous.

• Digital Input: Two Coaxial / Two Optical / Two AES-EBU / BNC / USB
• Sampling Rate: 44.1kHz ~ 192kHz
• THD+N Ratio: 0.0003% @ 1kHz
• SNR: 130 [dB] @ 1kHz
• Channel Specification: 144 [ dB] @ 1kHz
• Dynamic Range: 130 [dB] @ 1kHz
• Output Level(UnBal): 6.8 [V]
• Output Level(Bal): 2 [V]

Lots of measurements in the user manual.

Website: Calyx
Price: $6.000

CYP AU-D160

USB DAC with analogue out (RCA), headphone out and Toslink.
Price: £150.00
Website: Cyp

• Supports standard sampling rates - 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz
• Supports Bits : 16 Bits / 24Bits
• Power supplied by USB BUS Power
• The Headphone, R/L and Optical ports will simultaneously support audio output
• ASIO driver supported
• USB Audio Class 2.0 with asynchronus mode and driver for Win
• 500 MIPS, 8 threads, XS1-L1 processor (XMOS)