The B12A MkII 500 is a single-channel, 500 series microphone preamp in the style of an API® 312A. It features a CineMag input transformer, an Edcor output transformer, a Hi-Z input, phantom power, pad, and phase. Its plentiful, low-noise gain makes it easy to use with a wide range of microphones in live, broadcast, and studio environments. Its ultra-punchy, detailed Hi-Z input is perfect for capturing keyboards, synthesizers, and drum machines. It’s the ideal companion to pillowy, fat sounds, and will liven up a mix with an undeniable energy!
Registered trademarks belong to Automated Processes, Inc.
Features
• 500 Series format (lunchbox® required)
• Cinemag Input Transformer
• Edcor Output Transformer
• 70dB Gain
• Hi-Z Input (passive, unbalanced)
• Phantom Power
• 18dB Pad
• Phase Switch
Specs
Mic Section
• Max Microphone Input Level: +1dBu
• Input Impedance: 200Ω
• Pad: 18dB
• Gain (no pad): +26dB to +70dB
• Equivalent Input Noise (noise floor): -120dBu
•THD+N (@ +4dBu output):
•.010% @ +22 dBu
•.010% @ +36 dBu
•.041% @ +56 dBu
•.122% @ +66 dBu
• Bandwidth (1kHz, 150Ω source,
unweighted): 10Hz to 30kHz
D.I. Section
• Max D.I. Input Level: +18dBu
• Input Impedance: 1.1MΩ
• Pad: none
• Gain: +10dB to +53dB
• Equivalent Input Noise (noise floor): -94dB
•THD+N (@ +4dBu output):
•.009% @ +10 dBu
•.115% @ +36 dBu
• Bandwidth (1kHz, 600Ω unbalanced
source, unweighted): 10Hz to 30kHz
Output Section
• Max Output Level: +28dBu
• Output Impedance: 600Ω
Power Supply
• +/- 15v (lunchbox® supply)
Product Dimensions
• 1.5” x 6.5” x 5.25”
Product Weight
• .8 lbs
Shipping Dimensions
• 13” x 11” x 5”
Shipping Weight
• 1.8 lbs
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