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BURL Audio B16 Mothership with B22-ALPS ORCA and B4 Mic Pre Daughter Cards

B16 Mothership chassis with BMB1 Mini-DigiLink motherboard for direct hookup to Pro Tools loaded with the B22-ALPS ORCA 4-channel DAC and B4 4-channel mic/line preamp ADC daughter cards

Product Description

The Burl Audio B16 Mothership is a compact, portable, 2-slot version of the revolutionary B80 Mothership. This versatile digital audio interface provides up to 16 channels of Class A circuitry for adding analog color and character to sterile digital productions. With support for Digilink, MADI, Dante or SoundGrid connectivity, the B16 offers industry-leading IO. This complete B16 Mothership package includes the BMB1 Digilink Motherboard for Pro Tools connectivity along with the B22-ALPS Orca 4-channel DAC control room monitor and B4 4-channel mic/line input ADC daughter cards.


The BMB1 comes standard with two DigiLink connectors for direct hookup to Avid Pro Tools. BURL AUDIO does away with the expansion port, making both primary ports. That means you can play 64 ADC or DAC channels straight out of Pro Tools with one unit! With 6 BAD8s and 4 BDA8s a 48x32 IO can be achieved. With 2 BAD8s and 8 BDA8s a 16x64 IO can be achieved. With the configurability of the MOTHERHSHIP the IO possibilities are limitless.

  • 2 Digilink ports for 64 channel operation
  • 2 BNC Word Clock outputs
  • 1 BNC Word Clock input


Building on the reputation of the B26 ORCA for sonic superiority, BURL Audio introduces the ultimate in control room monitoring for the B16 Mothership, the Burl B22 ORCA Control Room Monitor daughter card. The B22 ORCA utilizes the same analog, all-discrete circuit path philosophy as other BURL Audio products with an emphasis on the ultimate in sonic transparency and 3D stereo imaging. The ALPS version includes an ALPS audiophile potentiometer.

Featuring the BURL NextGen BOPA14 op-amps, the B22 delivers tight bass and high definition throughout the audio spectrum. Instruments and mixes have a more real, 3D sound, with wider stereo image and even more depth while preserving the original shape and harmonic balance of the source.

The B22 ORCA employs 4 DAC channels. The first two are mix/mastering grade DAC channels with switchable BX5 output transformers. These channels can be used to feed a separate headphone amp or a mix/mastering chain. You can also use these channels to send out tracks for analog processing. The second two DAC channels feed the main monitor section which features two stereo speaker outputs and one stereo headphone output.

The B22 ORCA Control Room Monitor daughter card coupled with the B16 Mothership and the B4 MIC/LINE input card provides an amazing audiophile desktop recording rig.

  • 4-channel DAC MOTHERSHIP daughter card
  • Direct coupled, discrete, Class A analog signal path
  • BURL NextGen BOPA14 op-amps
  • 2 DAC channels with switchable BX5 output transformer
  • 2 DAC channels for monitoring
  • 2 stereo speaker outputs
  • 1 stereo headphone output
  • External meter output
  • ALPS audiophile attenuator


The Burl Audio B4 is a four-channel microphone preamp daughter card for the B16 Mothership. Featuring four mic/line inputs, pristine-sounding analog to digital conversion, and an all Class A discrete signal path, the B4 is a must-have daughter card for any Mothership owner.

Featuring the newly designed BX6 input transformer, the B4 mic pre is capable of dialing in a wide range of sounds. At low levels, the B4 delivers a crisp, clean sound akin to high-end digital preamps. Crank up the gain to drive the BX6 input transformers for loads of classic analog saturation.

The B4 mic pre is equipped with Burl’s NextGen BOPA14 op-amp—the same ultra-linear converters used in the best-selling BAD8 analog-to-digital converter daughter card. Combined with the colorful BX6 analog input transformer, this flexible preamp is perfect for any project—from clean modern productions to classic rock, soul, R&B and more.

  • 4-channel MIC/LINE input ADC
  • NEW BX6 input transformers
  • BURL NextGen BOPA14 OP-AMP
  • 40 total MIC/LINE input channels per B80
  • All Class A, discrete signal path

Product Specifications

Chassis19-inch Rack-mount
Rack Spaces2u
Input ConnectorsAnalog XLR
Output Connectors1/4-inch TRS, Analog DB25, BNC
Computer ConnectionDigilink Mini
Number of Preamps4
Clock I/OIn, Out
Maximum Sampling Rate192 kHz

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