Like the API 3124+, the 3124V is a compact, high-quality 4-channel microphone preamp. It is equipped with the AP2516 input transformer and proprietary output transformer found in all API mic pres and across the entire API product line. Additionally, the 3124V offers variable output level control and selectable 3:1 output transformer selection. The unit has an internal 48-volt phantom power source, which can be selected for each channel, as well as -20dB pad switches that affect the microphone and Hi-Z instrument inputs, both located on the front panel.

The 3124V also has up to 65dB of gain. Additionally, Hi-Z front panel inputs feed directly into op amps, which allows a low-level input such as a guitar or bass to be amplified without a corresponding transformer or direct box. These Hi-Z inputs can have levels up to +20dBu, making them perfect for keyboards and other high-end devices. The microphone preamp outputs are on the male XLR connectors on the rear panel.

Characteristics

• Classic API circuit design;
• Uses API 2520 operational amplifiers;
• Variable output level control;
• 3:1 output transformer tap selection;
• Four female XLR microphone inputs;
• Four 1/4-inch Hi Z instrument inputs on the front panel
• Front panel polarity switches;
• -20dB pad switches on front panel;
• Front panel microphone/instrument switches;
• 48V power switches on front panel.

Specifications

• Preamplifier Type: Solid State;
• Number of channels: 4;
• Phantom power: yes;
• Analog inputs: 4 x 1/4 in. (Hi-Z), 4 x XLR (microphone);
• Analog outputs: 4 x XLR;
• Rack Spaces: 1U;
• Power source: standard IEC AC cable;
• Depth: 11 in.;
• Weight: 4.71kg.