AKG B23L Battery Operated Phantom Power Supply

£115.00 (including VAT @ 20%)

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Product Ref: 68003

  • Compact, Portable Phantom Power Supply
  • Volume Control For Each Input
  • Mono And Stereo Output
  • Includes Stereo Mini Jack To Mini XLR Cable
  • Powered By Two Standard AA Batteries

AKG B23L Battery Operated Phantom Power Supply

The AKG B23L Battery Operated Phantom Power Supply is a compact, portable phantom power unit and mini recording mixers featuring two mini-XLR-F inputs and a 3.5mm stereo output. This mini power supply provides 9V phantom power to the AKG MicroMic series allowing you to record high-quality audio wherever you are. The unit only requires two standard AA batteries, guaranteeing you an average run-time of 30 hours.

Product Ref: 68003

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Portable Phantom Power Solution

Designed to be used in conjunction with the AKG MicroMic series this portable Phantom Power supply allows you to record wherever you are. The unit is powered by two standard AA batteries, which produces a performance time of around 30 hours. The unit features two mini-XLR-F inputs (L and R) ensuring optimal audio quality for up to two microphones. Both inputs can be switched to either mono or stereo for use with a range of different microphones. The output on the B23L is a standard 3.5mm stereo jack, allowing you to connect the power supply to a range of devices.

Mini-Recording Mixer

As well as being a versatile phantom power supply, the B23L functions as a mini recording mixer. There are two separate volume controls that allow you to set the level of each microphone independently. This feature is ideal to differentiate between two audio sources such as voice and instrument signals, allowing you to adjust the volume of each source independent of the other. On the rear panel there is also a metal clip, that allows you to attach the unit to your clothes or other things to increase its portability.


  • Compact, portable phantom power supply allows you to record anywhere
  • Provides 9V Phantom Power for use with AKG MicroMic series
  • Powered by 2 standard AA batteries
  • Volume control for each input
  • Mono and stereo output
  • Low battery monitoring
  • 3.5mm stereo mini jack to mini XLR cable included


  • Frequency Response: 20 Hz - 20 kHz
  • Input Channels: Two mini XLR inputs
  • Output Channels: 3.5 mm stereo output jack (max. 55 VDC)
  • Max Input Level: 0 dBV
  • Max Output Level Stereo Line: 0 dBV +/- 1 dB @ 1 kHz < 0.1 %
  • Max Output Level Stereo Mic: 0 dBV +/- 1 dB @ 1 kHz < 1 %
  • Input Impedance: 5 kohms
  • Output Impedance: 200 ohms unbalanced
  • Max Input Attenuation Line: 50 dB +/- 1 dB (Volume control position 0)
  • Min Input Attenuation Line: 0 dB +/- 1 dB (Volume control position10
  • Max Input Attenuation Mic: 37 dB +/- 2 dB (Volume control position 0)
  • Max Mic Amplification: 30 dB +/- 2 dB (Volume control position 10)
  • Noise Line (Mono & Stereo): < 5 uV (A)
  • Noise MIC (Mono & Stereo): < 22 uV (A)
  • Power Supply: Two AA alkaline or rechargeable batterie
  • Phantom Voltage: 9 V (open loop), 4 V (at 4,2 kOhm)
  • Power Consumption: 40 mA @ 3 VDC (line mode)
  • Lifespan of the Batteries: 30 - 50 h, depends on the battery capacity
  • Temperature Range: -10 °C – 60 °C (14 °F - 140 °F)
  • Dimensions (L x W x H): 89 x 70 x 26 mm (3.5 x 2.75 x 1.02 in)
  • Weight Including Batteries: 115 g (4.05 oz)

For more information on the B23L please refer to the PDF above.