Every digital source, one converter
The Bryston BDA-3 Digital to Analog Converter takes almost anything you can feed it, from a laptop over asynchronous USB to a disc transport over AES/EBU, and converts it with dual 32-bit AKM converters running in balanced configuration. PCM runs to 384kHz and 32-bit, and DSD to DSD256. An optional HDMI module adds four HDMI inputs with 4K video passthrough for owners who want SACD and disc player audio handled here rather than by a receiver.
Why You'll Love It
- Room for the whole rack. Two USB inputs, AES/EBU, S/PDIF on both RCA and BNC, and Toslink means your streamer, computer, CD transport and television can all live on one converter.
- Resolution to spare. PCM to 384kHz and 32-bit and DSD to DSD256 covers every download and streaming format you are likely to own, without conversion tricks in between.
- An analogue stage worth the name. Fully discrete Class A output circuitry with separate power supplies for the analogue and digital sections, which is where a lot of DACs at this price cut corners.
Under the Hood
- Dual 32-bit AKM converter chips, one per channel, running balanced through a fully discrete Class A analogue output stage.
- Asynchronous USB Class 2.0 Audio inputs, plus AES/EBU, S/PDIF RCA, S/PDIF BNC and Toslink, with the optional module adding four HDMI inputs and 4K video passthrough.
- THD plus noise at or below 0.002% from 20Hz to 20kHz, noise at -140dB balanced and -134dB unbalanced, frequency response 20Hz to 20kHz ±0.1dB.
CHT Insider Verdict
The BDA-3 has aged well because Bryston built it around connectivity and a serious analogue stage rather than chasing a specification. If you have several digital sources it can genuinely replace a preamplifier's input switching, and the balanced outputs will drive a power amplifier directly through a passive control. Decide on the HDMI module up front, because it is fitted at build rather than added later.
Pro Tip: If you are connecting a computer, use the asynchronous USB input rather than optical. The BDA-3 controls the clock on USB, which is the arrangement that keeps jitter out of the conversion, and Toslink is the one input that limits what the converter can do.
Specifications
| Conversion | |
| DAC | Dual 32-bit AKM converters, balanced |
| PCM support | Up to 384kHz, 32-bit |
| DSD support | Up to DSD256 |
| Inputs | |
| USB | 2 x asynchronous USB Class 2.0 Audio |
| Digital | AES/EBU, S/PDIF RCA, S/PDIF BNC, Toslink |
| HDMI (optional module) | 4 x HDMI in with 4K video passthrough |
| Outputs | |
| Balanced | XLR, 4.0V |
| Single ended | RCA, 2.0V |
| Output stage | Fully discrete Class A |
| Performance | |
| THD plus noise | 0.002% or less, 20Hz to 20kHz |
| IMD | 0.0003% or less |
| Frequency response | 20Hz to 20kHz, ±0.1dB |
| Noise | -140dB balanced, -134dB single ended |
| Physical | |
| Dimensions (17 inch faceplate) | 432 x 84.5 x 293 mm (W x H x D) |
| Dimensions (19 inch faceplate) | 483 x 84.5 x 293 mm (W x H x D) |
| Weight | 4 kg |
| Finishes | Black, Silver |
| Warranty | |
| Warranty | 10 years |


