Burl Audio B80 Mothership 3 BMB2 MADI

The Burl Audio B80 Mothership 3 (BMB2 MADI) is Burl’s flagship 4U modular conversion chassis equipped with the BMB2-MADI motherboard.

Mothership 3 expands total system capacity and introduces an auto-detection protocol that streamlines custom slot configurations without manual jumpers.

Key Features

• 10 Daughter Card Slots: Fully customizable chassis accommodating any combination of Burl BAD input, BDA output, B4 mic pre, BAES digital, and BCLK word clock modules.

• Dual Optical MADI Ports (BMB2): Supports 128 I/O channels at $44.1\text{ kHz}/48\text{ kHz}$, 64 I/O at $88.2\text{ kHz}/96\text{ kHz}$, and 32 I/O at $176.4\text{ kHz}/192\text{ kHz}$.

• Automated I/O Slot Mapping: Internal motherboard-to-card communication automatically assigns channel numbers sequentially from left to right.

• Class-A Discrete Analog Circuitry: Direct-coupled, zero-capacitor audio paths with custom BX1 input transformers for rich, organic analog saturation.

• External Heavy-Duty Power Supply: Includes external 1U power supply delivering continuous, high-voltage $\pm 24\text{V}$ rails for maximum headroom.

• Flexible Expansion: Architecturally prepared for future high-density MADI daughter cards supporting up to 64 channels per slot.

Specifications

• Form Factor: 4U 19-Inch Heavy-Duty Steel Rack Chassis

• Motherboard: BMB2 MADI Motherboard

• Expansion Capacity: 10 Daughter Card Slots

• Channel Capacity (BMB2):

  • $44.1\text{ kHz}/48\text{ kHz}$: Up to 128 Channels I/O

  • $88.2\text{ kHz}/96\text{ kHz}$: Up to 64 Channels I/O

  • $176.4\text{ kHz}/192\text{ kHz}$: Up to 32 Channels I/O

• Digital I/O: 2x SC Optical MADI Connectors (BMB2 Motherboard)

• Clocking I/O: 1x BNC Word Clock Input, 2x BNC Word Clock Outputs

• Internal Clock: Low-jitter BURL BACKBONE distribution architecture

• Power Supply: External 1U Heavy-Duty Power Supply Unit (Included)