Like the API 3124+, the 3124V is a high quality, compact, 4-channel mic preamp. It is equipped with the RE-115 K mic input transformer and the proprietary output transformer found in all API mic pres and throughout the API product line. Additionally, the 3124V offers Variable Output Level Control and switchable 3:1 output transformer selection. The unit has an internal 48-volt phantom power supply, which is switchable for each channel, as well as -20dB pad switches that affect both the mic and Hi-Z instrument inputs, both located on the front panel.
The 3124V also features up to 65dB of gain. Additionally, the Hi-Z front panel inputs feed directly to the op amps, which allow a low level input such as a guitar or bass to be amplified without a matching transformer or direct box. These Hi-Z inputs can take levels as high as +20dBu, making them perfect for keyboards and other high level devices. The mic preamp outputs are on rear panel male XLR connectors.
Features
- Classic API Circuit Design
- Uses API 2520 Op Amps
- Variable Output Level Control
- 3:1 Output Transformer Tap Selection
- Four female XLR mic inputs
- Four front panel 1/4" Hi Z instrument inputs
- Front panel polarity switches
- Front panel -20dB pad switches
- Front panel mic/instrument switches
- Front panel 48V power switches
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Specifications |
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Input Impedance: |
1500 Ohms Mic, 470 K Ohms Un-Balanced, HI-Z in |
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Output Impedance: |
Less than 75 Ohms Channel Outputs |
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Nominal Levels: |
XLR Channel Output +4 dBu |
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Stereo Output Level: |
Unbalanced: nominal -2, Balanced: +4 |
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Frequency Response: |
+0, -5, 10 Hz to 20 kHz (-.5 at 10 Hz) |
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Noise EIN: |
-129 Mic, -125 Un-Bal. Actual |
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Measured Noise: |
Better than -91 dBm / below Nominal +4. |
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Distortion: |
All Outputs at +4 out, .03%, at +22, .09% Max |
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Gain Range: |
150 Ohms Input 10 dB Min., 65 dB Max (inc. PAD). Un-Bal. Input 14 dB Min., 50 dB Max |
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VU Meter: |
Calibrated for XLR Outputs, OVU=+4 dBu, (-12, -6, -3, 0, +3, +6, +18) |
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Controls: |
GAIN, PAD (20 dB), 48Volts, POL (polarity), MIC (mic/un-bal), VU, AC |
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Power Consumption, Quiescent: |
19.2 Watts |
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Size: |
19" X 1.75" (1U) X 11" Deep |
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Size (Boxed for Shipping): |
23.25" X 6.5" X 16.5" |
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Actual Weight: |
10.38 lbs. |
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Shipping Weight: |
14.06 lbs. |
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