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Motherships gain daughter cards

Motherships gain daughter cards

Motherships gain daughter cards

The B4 features a Class-A analogue circuit with the same ADC used in Burl’s BAD8 daughter card

Burl Audio has produced the B4 daughter card for use with its B80 and B16 Mothership converters. It is a four-channel mic/line input daughter card that includes the new BX6 input transformer that the manufacturer has designed for ‘true’ mic/line input impedance.

The B4 also features a Class-A analogue circuit with the same ADC used in Burl’s BAD8 daughter card. A single B80 chassis allows 40 input channels of mic/line inputs to be realised, while digital control is facilitated along with SoundGrid or Dante connectivity.

Meanwhile, the BAD4M is a mastering-grade, four-channel ADC daughter card with stepped attenuators and switchable input transformers designed for mixing and mastering. Also for use with the B80 and B16 Motherships, the BAD4M draws on Burl’s NextGen analogue technology and follows in the footsteps of the B2 Bomber ADC and the BAD8 cards with the same BX1 transformer-coupled circuit path as the BAD8 and a transformer-less analogue front end using BOPA14 op-amp, which users can switch between.

The manufacturer states that when a BDA4M is used with a BX5 output transformer routed to a BAD4M with the BX1 input transformer, it helps make fully digital projects sound ‘less digital’, much in the same way that engineers might have previously run digital tracks through a two-track analogue tape machine to achieve the desired effect.

It’s not all analogue though, as on the digital side, the BAD4M features a switchable ADC filter and Avid delay matching. By switching the ADC filter, users can change the tone to a more aggressive one with a more forward midrange. The Avid delay matching allows users to match the input delay of an Avid I/O.

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