Burl Audio B2 DAC

The Burl Audio B2 Bomber DAC is a mastering-grade 2-channel 24-bit/192kHz D/A converter built to deliver analog depth, stereo width, and transient punch to digital monitoring and mixing setups. With Burl’s proprietary BX2 output transformers and a Class-A discrete output stage, the B2 DAC restores 3-D warmth, dynamics and low end when monitoring or printing mixes back to analog gear.

Equipped with an advanced internal clock generator, the B2 DAC reduces jitter resolving fine spatial details, transients and depth within dense mixes. For precise gain staging, the front panel features a stepped 6-position attenuator to match nominal operating levels across various analog consoles, outboard processors, or active studio monitors.

Key Features

• Proprietary Burl BX2 Output Transformers: Delivers high-current drive, harmonic warmth, and deep bass extension for monitoring and analog summing loops.

• Class-A Discrete Output Topology: Pure transistor design with zero negative feedback and no capacitors in the audio path for maximum transparency and speed.

• Ultra-Low Jitter Clocking: Internal clocking system minimizes timing phase noise for razor-sharp stereo imaging and depth.

• 6-Position Headroom Attenuator: Stepped front-panel rotary switch to easily set output headroom ($+14\text{ dBu}$ to $+24\text{ dBu}$) for perfect level alignment.

• High-Resolution 30-Segment Metering: Clear visual tracking of output levels with peak hold capability.

• Versatile Digital Inputs: Accepts AES/EBU, S/PDIF (coaxial), and TOSLink optical inputs with automatic sampling rate lock up to $192\text{ kHz}$.

• Rugged 1U USA Construction: Heavy-duty steel chassis built for 24/7 commercial studio and mastering suite workflows.

Technical Specifications

• Form Factor: 1U 19-Inch Rackmount Unit

• Channel Count: 2 Channels (D/A Conversion)

• Conversion Resolution: 24-Bit / $44.1\text{ kHz}$ to $192\text{ kHz}$

• Output Stage: Proprietary Burl Audio BX2 Output Transformers

• Circuit Topology: Discrete Class-A Transistors

• Dynamic Range: $120\text{ dB}$ (A-weighted) / $117\text{ dB}$ (unweighted)

• THD+N: $<0.001\%(-100\text{ dB})$ @ $+4\text{ dBu}$

• Frequency Response:

  • $10\text{ Hz}-22\text{ kHz}(\pm 0.1\text{ dB}@48\text{ kHz})$

  • $10\text{ Hz}-46\text{ kHz}(\pm 0.1\text{ dB}@96\text{ kHz})$

  • $10\text{ Hz}-92\text{ kHz}(\pm 0.1\text{ dB}@192\text{ kHz})$

• Digital Inputs: 2x AES/EBU (XLR), 1x S/PDIF (Coaxial RCA), 1x TOSLink Optical

• Analog Outputs: 2x XLR Male (Balanced Transformer-Coupled)

• Word Clock I/O: 1x BNC Clock Input, 2x BNC Clock Outputs

• Power Requirements: Internal AC Power Supply