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API-3124V-999-1923

API 3124V Discrete 4-Channel Mic/Line Pre

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.

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

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 the rear panel of male XLR connectors.

Specifications

Input Impedance:

1500 Ohms Mic, 470 K Ohms Un-Balanced, HI-Z in

Output Impedance:

Less than 75 Ohms of Channel Outputs

Nominal Levels:

XLR Channel Output +4 dBu

Stereo Output Level:

Unbalanced: nominal -2, Balanced: +4

Frequency Response:

+0, -5, 10 Hz to 20 kHz (-.5 at 10 Hz)

Noise EIN:

-129 Mic, -125 Un-Bal. Actual

Measured Noise:

Better than -91 dBm / below Nominal +4.

Distortion:

All Outputs at +4 out, .03%, at +22, .09% Max

Gain Range:

150 Ohms Input 10 dB Min., 65 dB Max (inc. PAD).

Un-Bal. Input 14 dB Min., 50 dB Max

VU Meter:

Calibrated for XLR Outputs, OVU=+4 dBu, (-12, -6,

-3, 0, +3, +6, +18)

Controls:

GAIN, PAD (20 dB), 48Volts, POL (polarity),

MIC (mic/un-bal), VU, AC

Power Consumption, Quiescent:

19.2 Watts

Size:

19" X 1.75" (1U) X 11" Deep

Size (Boxed for Shipping):

23.25" X 6.5" X 16.5"

Actual Weight:

10.38 lbs.

Shipping Weight:

14.06 lbs.