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Burl Audio B4 4-channel mic / line ADC card

Burl B4 front
Burl B4 Back

Burl Audio B4 4-channel mic / line ADC card

4-Channel Mic preamp daughter card for B80 and B16 Mothership

CAP2: 204083.0 £2,449.00
£2,040.83 ex VAT
Usually ships in 1 to 2 weeks

Four-channel mic/Line preamp daughter card for the B80 and B16 Mothership with the new BX6 input transformer and NextGen BOPA14 Op-Amp

Burl Audio B4 4-channel mic / line ADC card

4-Channel Mic preamp daughter card for B80 and B16 Mothership

CAP2: 204083.0 £2,449.00
£2,040.83 ex VAT
Usually ships in 1 to 2 weeks
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Four-channel mic/Line preamp daughter card for the B80 and B16 Mothership with the new BX6 input transformer and NextGen BOPA14 Op-Amp

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KMR Audio - Cables and Accessories
KMR Audio - Burl Audio B4 4-channel mic / line ADC card
KMR Audio - Burl Audio B4 4-channel mic / line ADC card

Four-channel mic/Line preamp daughter card for the B80 and B16 Mothership with the new BX6 input transformer and NextGen BOPA14 Op-Amp

The Burl B4 is a four-channel mic/Line preamp for the B80 and B16 Mothership with the new BX6 input transformer designed to offer true Mic/Line input impedance.


The Burl B4 uses a Class-A analogue circuit directly by the same analogue-to-digital converter found on the BAD8. Up to 40 input channels can be used with a single B80 Mothership.


Burl B4 Main Features:


  • 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
  • Made in the U.S.A

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