Burl BDA4

Transformer coupled, 4-channel digital-to-analog converter Daughter Card for the Mothership
Burl BDA4
Burl BDA4 Burl BDA4 video
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Analog vs digital. The debate has raged on for decades. Finally, Burl Audio has brought an end to this tiresome battle by combining the best of both worlds. The Burl BDA4 is a 4-channel digital-to-analog converter Daughter Card for Burl Audio’s renowned B80 and B16 MOTHERSHIP. This transformer-coupled converter utilizes analog circuitry to make your tracks sound bigger, fatter, and deeper. Welcome to the future of digital audio—the mothership is here.

Digital Audio with Analog Flavor

The BDA4 is equipped with the newly developed BOPA14 op-amp, which features an all-discrete design with a minimal number of transistors. The BOPA14 utilizes Burl Audio’s NextGen Analog circuit path to deliver tighter bass and higher definition throughout the audio spectrum.

The BDA4 also employs the Burl BX5 output transformer—just like the legendary B32 VANCOUVER MIX BUS—to give your tracks even more analog character. By pairing these two powerful components together, the BDA4 can add detail to your tracks in ways you never thought possible. Perfect for bringing guitars and vocals to life, adding low-end to kick drums and basses, or even gluing your mix bus together—the BDA4 is a one-of-a-kind converter.

The New Analog Sound

Cancel your plug-in subscriptions. Sell your console. Throw out your tape machine. The BDA4 is your new go-to for adding analog character to tracks.

For years, engineers have looked for ways to make their digital tracks sound “less digital”. The BDA4 is designed to recreate the unique color imparted by analog audio equipment—only better. The BDA4 introduces no internal noise or hiss, and offers a higher dynamic range and more headroom than most analog devices.

BDA4 also employs a switchable DAC filter, allowing you to change the tone from the classic Burl sound to a more aggressive tone with a more forward mid-range. Mixing is made easy with AVID delay matching, which perfectly matched the output delay of an AVID IO when using hardware inserts.


  • 44.1 kHz to 192 kHz, 24-bit, 4-channel DAC
  • Circuit path based on Burl Next Gen. Analog BURL AUDIO BOPA4 OP-AMP
  • BX5 nickel core output transformer
  • All Class-A, discrete transistor signal path with zero capacitors
  • Switchable DAC filters for variable tone
  • Switchable delay settings to match AVID converters
  • Low latency
  • 4-channel XLR connectivity

Additional Information

Condition New
Chassis module
Channels 4-Channel
Analog Outputs 4
Output Connectors Analog XLR
Maximum Sampling Rate 192 kHz
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