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The BAE 312A is a dual channel mic preamp made using Avedis 1122 opamps. They are excellent for drums and percussion. The sound is in your face.

The 312A is available as a 500 series module or a single or dual channel 19" rackmount.

Because there are no capacitors in the audio path, the 312A is super fast and punchy, allowing transients to pass easily, making them a favourite for drummers.

Made with the highest quality parts including Jensen input and output transformers and the Avedis 1122 opamp. The 312A also includes a high impedance DI for instruments.


  • Two mic preamps with direct inputs in a single rack space with a power supply
  • Same as single modules except no lunchbox or rack is needed
  • Made using Avedis 1122 opamps
  • Supplied with Jensen input and output transformers at no additional cost
  • Remote power supply with four-foot cable capable of four times the current needed by the preamps for optimum sound quality
  • Switches have gold contacts for long life
  • Has XLR connectors on the back for mic input and output and phone jack in front for direct input
  • High impedance direct input for guitar and synthesizer
  • Separate front panel switches for phantom power
  • Specifications

    Frequency Response
    5Hz to 75kHz (-3dB)
    Mic Input Impedance
    1400 ohms
    Line Input Impedance
    10k ohms
    DI Input Impedance
    250k ohms
    Output Impedance
    75 ohms
    Common Mode Rejection Ratio
    110dB min @ 60Hz
    Maximum Output Level
    +27.1 dBu @ 600
    Power Requirements
    115/230 VAC, 27W (Rackmount)
    40mA per Rail (Module)
    Gain dB
    10 to 66 dB
    Equivalent Input Noise
    -120 dBu; Unweighted 300kHz Bandwidth
    Weight (Module/Rackmount)
    1 LBS / 0.45 KG (Module)
    7 LBS / 3.18 KG (Single Rackmount)
    8 LBS / 3.63 KG (Dual Rackmount)
    Dimensions in Inches (Rackmount/Module)
    19W x 1.75L x 9D (Rackmount)
    1.5W x 5.5L x 6D (Module)
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