Benchmark DAC-104

The DAC-104 is a four-channel, 24-bit, 96-kHz Digital-to-Analog audio converter module for the System 1000 module frame. This is the first digital audio module for the heretofore totally analog System 1000. * 4-channel, 24-bit, 96-kHz D-to-A conversion * Two balanced audio outputs per channel, 8 total * Adjustable Output Levels – Multi-turn trimmers – 1 trimmer per output — 20 dB Range * Total jitter immunity! * Phase Accurate D-to-A conversion across any number of channels * THD+N = -102 dB (0.00079%) measured at -3 dBFS, any sample rate, any test frequency * 4 power, 2 error, and 4 range indicating LEDs * Polarity Invert function – jumper selectable * L/R swap – jumper selectable * L+R to L out, L-R to R out – jumper selectable * L+R Sum to both L and R outputs – jumper selectable * Automatic De-emphasis for 44.1, 48, 88.2, and 96 kHz when Pre-emphasis bit is set * Front edge test points * 165 mA quiescent draw @ ±15 V, 171 mA - full signal into a bridging load Benchmark digital converters have a reputation for high-end performance without a high-end price tag. The DAC-104 is no exception. Most cardframe DACs lack a two-stage phase-lock-loop, making them very susceptible to jitter, the bane of digital audio. Those DACs can rarely achieve their rated performance in real world applications. The DAC-104, however, takes full advantage of our latest digital lockup technology to provide total jitter immunity and very high performance. Best of all, the rated performance is bullet proof: it is repeatable under the most adverse input signal conditions! The DAC-104 has a THD+N of 0.00079% at -3 dBFS and an input sample-rate range of 28 through 108-kHz. Features include; auto-detection and processing of pre-emphasized digital audio, jumper selection of discrete stereo, matrix stereo (L+R and L-R), polarity inversion, and Mono sum on all outputs. Output level controls are at the front card edge and provide an analog output adjustment range of +7.5 dBu to +27.5 dBu at 0 dBFS.