For sale is a BAD 4M AD mastering version. With the option to leave the transformer in, or quickly pop it out for comparison, it's a super valuable mastering tool getting back into the computer. Message with questions, description below.

DescriptionSelling a lightly used Burl Audio BAD4M 4-channel analog-to-digital converter (ADC) daughter card. Designed specifically for mixing and mastering, this card brings legendary Burl sound quality, massive headroom, and incredible clarity to your B80 or B16 Mothership chassis.The unit is in pristine working condition, pulled from a clean, smoke-free professional studio environment. All channels, switches, and attenuators function perfectly.

Key Features:

• Switchable BX1 Input Transformers: Choose between transformer-coupled warmth or a cleaner, transformerless path.
• B2 ADC-Style Stepped Attenuators: Precise gain staging and input level control per channel pair.
• NextGen Analog BOPA14 Op-Amps: Class-A discrete circuitry for supreme fidelity.
• Avid Delay Matching & Filter Select: Easily match Pro Tools hardware insert delays and alter high-frequency response profiles.

What’s Included:

• Burl Audio BAD4M Daughter Card
• securely packaged

Tech Specs

• Type: 4-Channel Analog-to-Digital (A/D) Converter Card
• Compatibility: Burl Audio B16 and B80 Mothership
• Max Sample Rate / Bit Depth: 192kHz / 24-bit
• Analog Inputs: 4 x XLR
• Dynamic Range: 115 dB