Advanced Audio CM251
Large-diaphragm tube condenser microphone
Microphone$895Manufacturer list price
Specifications
- Type
- Microphone
- Description
- Large-diaphragm tube condenser microphone
- Topology
- tube condenser
- Signal path
- Analog
- Channels
- 1
- Form factor
- Side-address studio microphone body with external power supply
- Powered
- true
- Drivers
- 34mm dual back-plate, edge-fed capsule (AK12), 6-micron German mylar diaphragms, socketed 9-pin 6072a dual-triode tube
- Frequency response
- 25Hz-20kHz ±3dB
- Max SPL
- 128 dB
- Sensitivity
- -32 dBu
- Polar pattern
- 9 selectable patterns (multi-pattern, switched from power supply)
- Impedance (Ω)
- <200
Details
Controls: 9-pattern selector on power supply
I/O: 7-pin mic cable to dedicated external tube power supply; XLR output from PSU
Notable use: Jack Douglas (John Lennon, Aerosmith); Jon Smeltz (Whitney Houston, Usher); House of Blues Studios Nashville
Notes: Modeled on the Telefunken/AKG ELA M 251. Manufacturer states it improves on the original circuit (lower output impedance, +6dB headroom, lower self-noise) rather than being a strict clone. Tube condenser, external PSU. Listed as out-of-stock/pre-sale at time of research but not marked DISCONTINUED.