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API Audio 3124MV 4-Channel Preamp/Mixer with Transformer Tap  From API

The 3124MV combines the brand new output trim control with the standard 4-channel 3124M preamp and mixer, providing you with even more control over your recording levels and tone shaping possibilities!

API Audio

$3,605.25

Retail:  $3,795.00

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API Audio 3124+ 4-Channel Microphone Preamp - Quick n’ Dirty

  The API 3124+ is a high quality, compact, 4-channel mic preamp. Top quality, military grade build and a distinct, aggressive sound that, when the situation calls for it, is nothing short of amazing. For hard rock or metal engineers, it’s pretty safe to say your preamp arsenal isn’t complete without at least 4 channels to cover your drums, guitars, and bass. This preamp is available for SoundPure’s Try-Before-You-Buy Program, so if you want to hear how it sounds in your studio with your gear, shoot us an email at ProAudio@SoundPure.com, or give us a call anytime at 919.682.5552. Thanks for watching!

Manufacturer's Description from API

Both the 3124V and the 3124MV are designed with the professional engineer in mind. Both units give four channels of the highest possible quality mic preamp. However, the 3124MV provides an additional audio mixer with a transformer balanced output, keeping the unit size and price reasonable. Both models are 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 uses the RE-115 K mic input transformer along with the same output transformer that is used in API equalizers. 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.

API Audio

About Manufacturer

API (Automated Processes, Inc.) is world famous for its all-discrete audio products: studio and broadcast mixing consoles, and a full line of rack mount mic preamps, equalizers and processors. It all began with a dream. It was 1968. The company: Automated Processes Inc., formed by men with a vision. Best known for their now legendary "2520 amplifier", this unique amp has been and will continue to be the heart of all API discrete products. It continues to provide reliability and sonic purity unmatched by the competition. The resulting console met the needs of the music, commercial and broadcast industry. API became the leading audio broadcast console manufacturer for radio and television networks and high profile stations. In addition, recording studios, large and small, began using API.....and receiving rave reviews from engineers and producers. There are over 700 API consoles across the nation and around the world, including the three major networks. Over thirty years later, many of these consoles are still in daily use in some of the most prestigious recording and broadcast facilities in the world because, to date, there are few, if any consoles of equal sound quality at a cost-effective price.

Specifications

  • 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" Un-Balanced Inputs
  • Front Panel Polarity Switch
  • Front Panel 20 dB Pad Switch
  • Front Panel Mic/Line Switch
  • Front Panel 48V Power Switch
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" (1U) X 10.5" Deep
Size (Boxed for Shipping): 23.25" X 6.5" X 16"
Actual Weight: 11.54 lbs.
Shipping Weight: 15.3 lbs.

 

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API 3124MV Block Diagram