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Everything In Music Since 1958
Everything In Music Since 1958

API 3124MV Discrete 4-Channel Mic PreAmp with Stereo Mixer

Out of Stock
Original price $3,795.00
Original price $3,795.00 - Original price $3,795.00
Original price $3,795.00
Current price $3,605.25
$3,605.25 - $3,605.25
Current price $3,605.25
About Inventory Status


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In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions


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Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

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The API 3124MV Discrete 4-Channel Mic PreAmp with Stereo Mixer is Designed with the Professional Engineer in Mind

The 3124MV gives four channels of the highest possible quality mic preamp. It also provides an additional audio mixer with a transformer balanced output, keeping the unit size and price reasonable. The 3124MV is equally at home in the control room, studio, and recording truck or on stage.

The 3124MV utilizes the same microphone preamp circuit that is used in all API consoles. It is equipped with the AP2516 input transformer and the proprietary output transformer found in all API mic pres and throughout the API product line. The unit offers Variable Output Level Control, switchable 3:1 output transformer selection, and an internal 48-volt phantom power supply, which is front panel switchable for each channel. Also provided is a front panel -20 dB pad switch that affects both the mic and line in. A 1/4" phone jack is available on the rear panel for each channel as an insert tip-send/ ring-return placed between the mic pre amp output and the mixer input.

Like the 3124V, the 3124MV provides up to 65 dB of gain. The Hi-Z front panel input goes directly to the op-amp, allowing a low level input such as a guitar or bass to be amplified without a matching transformer or direct box. This Hi-Z input can accept input levels as high as +20 dBu, making it perfect for keyboards and other high level devices. The rear output is an XLR connector. Additionally, the 3124MV adds a stereo panner with a level control, and a post "fader" aux send. The stereo panners and the aux sends are bussed to master output controls and then to the rear panel jacks. A stereo AUX return is provided to return effects or cascade additional mixers for more inputs. The unique stereo aux return control acts to balance the left/right signal, yet staying stereo. It can also be used as a mono return.


  • Classic API Circuit Design
  • Uses API 2520 Op Amps
  • Variable Output Level Control
  • 3:1 Output Transformer Tap Selection
  • Four XLR Mic Inputs
  • Four 1/4-inch Un-Balanced Inputs
  • Front Panel Polarity Switch
  • Front Panel 20 dB Pad Switch
  • Front Panel Mic/Line Switch
  • Front Panel 48V Power Switch


SPECIFICATIONS

  • Input Impedance: 1500 Ohms Mic, 470 K Ohms Un-Balanced, HI-Z in
  • Output Impedance: Less than 75 Ohms 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 x 10.5 inches / 483 x 44 x 267 mm
  • Size (Boxed for Shipping): 23.25 x 6.5 x 16 inches / 591 x 165 x 406 mm
  • Actual Weight: 11.54 lb / 5.23 kg
  • Shipping Weight: 15.3 lb / 6.94 kg

Manufacturer: Automated Processes Inc
Model: 3124MV
SKU: I492589-N-0-WHXB


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