Benchmark ADC1 USB - Analog to Digital Audio Converter

While audio interface connection capability will continue to change, a good quality ADC will always remain current. This is certainly the case for Benchmarks ADC1 2 channel Analog to Digital Converter. The barrier between analog and digital should not limit the listening experience. Benchmark's digital converter technology maintains the sense of musical engagement that was originally present when the sounds were created. The life of the music is never lost in a quagmire of digital artifacts. The depth is never hidden, the image is never smeared. Benchmark converters always deliver faithfully and consistently. The ADC1 USB continues Benchmark's tradition of excellence.


      The ADC1 USB is a 2-channel 192-kHz 24-bit analog-to-digital audio converter with an unprecedented feature set. This converter was designed to consistently deliver reference quality conversion in 'real-world' conditions. It features Benchmark's jitter-immune UltraLock™ clock system and an extraordinary analog front-end.

      The UltraLock™ system delivers consistent, high-quality conversion even when slaved to a poor quality external clock. The performance of the ADC1 USB will not degrade when slaved to an external clock - a claim very few converters can make. Enjoy the convenience of a clock input that automatically recognizes AES/EBU, S/PDIF, Word Clock, or Super Clock sources - all with the unsurpassed jitter immunity of Benchmark's UltraLock™ clock-isolation system.

      Benchmark has a long tradition of building ultra-high performance analog circuits that are designed for maximum transparency. The ADC1 USB extends this tradition by pushing performance to the limits of today's technology. The analog front-end delivers low-noise low-distortion high-bandwidth performance over a wide gain range (45dB). Precise gain and calibration controls allow for accurate channel matching. The ADC1 captures precise imaging, subtle details, and difficult transients - all with stunning realism.

      The nine-segment dual-range, digital LED meters enable high-precision level monitoring. Meter response times are matched to the response of the human eye so that every peak is clearly visible. All metering is fully-digital and is not subject to calibration errors. A peak hold function allows an infinite hold to verify that an over has not occurred. Dual ranges allow signal presence monitoring, or precise headroom indication. The meters even use an upsampling technique to detect and display inter-sample peak overloads. This upsampled metering warns of potential overloads that may not be detected by conventional digital meters.


      SNR – A-Weighted, 0 dBFS = +16 to +29 dBu 121 dB
      SNR – Unweighted, 0 dBFS = +16 to +29 dBu 119 dB
      SNR – A-Weighted at max gain, 0 dBFS = -10 dBv 117 dB
      THD+N, 1 kHz at –1 dBFS -102 dBFS, -101 dB, 0.00089%
      THD+N, 1 kHz at –3 dBFS -107 dBFS, -104 dB, 0.00063%
      THD+N, 20 to 20 kHz test tone at –3 dBFS -106 dBFS, -103 dB, 0.00071%
      Frequency Response at Fs=192 kHz -3 dB, +0 dB, 2 Hz to 94 kHz
      +/- 0.01 dB, 20 Hz to 20 kHz

Need more info on the ADC1 USB? Click HERE for the official Benchmark product listing >>>