KingRex UD-01 Special Edition
USB DAC

NEW! There's little wrong with a stock UD-01: tonal balance, detail retrieval, transparency, organic musicality . . . all the things cheap DACs don't usually do well, the UD-01 does brilliantly.

Naturally, then, we wanted more: bigger soundstage, better dynamics, more information, increased vavoom. So we junked the £2.50-worth of dual channel op-amps installed in the standard unit, and installed four of the finest op-amps we could squeeze in the case: Burr Brown's flagship OPA627s at £18 a pop. It takes two of these peerless single channel op-amps to do the job of the TL072 in the DC section, and another two to replace the low pass filter OPA2604.

In truth, we auditioned every op-amp on the market, seeking some special chemistry among lower priced items, but, as many reviews have testified, the combination of huge soundstage, vivid dynamics, smooth midrange and treble and bottomlessly articulate bass bowled us over.

The Special Edition UD-01 is a truly high-end DAC with a tiny form factor. The KingRex PSU or other upgraded power supply is strongly recommended to get the best from the UD-01 SE.

Please note that the SE upgrade can be retrofitted to a standard KingRex UD-01 for just £65 including postage.

Compatible with any Windows, Mac or Linux PC.

“Clearly an improvement on the stock configuration, sounding better in almost every department. It simply sounds more sophisticated than the stock UD-01 . . . I can recommend the 'SE' as a worthwhile upgrade over the standard UD-01.” – TNT Audio

“These 2 single channel op amps [twin OPA627] absolutely trounced anything that had gone before them in this test: the width of the soundstage, the clarity and the sheer presence make this my choice of op amp for use in the Chiarra without a shadow of a doubt. The sound is just so "clean", "natural", musical" and "detailed" with the 627's on board. Ten out of ten.” – Rock Grotto

• Decoder chip: Burr-Brown PCM 2702E
  16-bit 44.1 or 48kHz
• Low pass filter op amp: twin Burr-Brown OPA627
• DC Servo: twin Burr-Brown OPA627
• Coupling capacitor-free design
  
• Power rating: DC 12V / 0.5A
• Adaptor input: AC 100-240V (47-63Hz)
• Gold-plated RCA SP terminals.
• Single USB 1.1 input.
• Comes with UK transformer / power lead.
• 12 month UK warranty

Dimensions: 110mm x 75mm x 33mm

Weight: 207g

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