Burl Audio B4 Mic Pre
4-channel mic/line input daughter card for Mothership
Preamp$2,199Manufacturer list price
Specifications
- Type
- Preamp
- Description
- 4-channel mic/line input daughter card for Mothership
- Topology
- all class-A, NextGen Analog BOPA14 op-amps, fully balanced signal path; new BX6 input transformers
- Signal path
- Analog
- Channels
- 4
- Channel format
- multichannel
- Form factor
- Mothership daughter card
- Frequency response
- LINE 0dB gain: -0.03dB@10Hz, -1.5dB@30kHz; Full gain (59dB): -0.03dB@10Hz, -2.5dB@30kHz
- Impedance (Ω)
- 10000 (line) / 2500 (mic)
- Introduced
- 2024
- Country of manufacture
- USA
- Phantom power
- 48V
Details
Controls: ADC filter select
I/O: 4-channel XLR mic/line input (DB25 style to Mothership backplane); up to 40 total mic/line channels per B80 with multiple B4 cards
Notes: Requires B80 or B16 Mothership chassis to operate (sold separately). Uses same ADC as BAD8 card. FLAG: phantom_power presence inferred from "mic input" capability and industry standard for XLR mic pre cards - page did not explicitly list phantom power spec, but mic preamp function implies it. Year_intro reflects Rev C release date (Sept 2024) per Burl site, not necessarily original launch.