API 3124MB+ Pre-Amplifier with Stereo Mixer

£3,899.00 (including VAT @ 20%)

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30 day money back guarantee included

30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

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Optional: 3 year warranty: £194.95
(Includes 60 day money back guarantee)


The product price includes a one year warranty and 30 day money back guarantee.

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Product Ref: 61097

  • 4-Channel Pre-Amplifier
  • Stereo Mixer and Transformer Balanced Outputs
  • API Console Circuitry
  • 4 XLR Microphone Inputs
  • Post ''Fader' Aux Send

API 3124MB+ Pre-Amplifier with Stereo Mixer

The API 3214MB+ Stereo Mixer is a 4-channel preamp with a stereo mixer, transformer balanced outputs and front-panel Hi-Z inputs. Implementing the API console sound and performance within this unit, the API 3214MB+ combines high quality audio treatment with expanded functionality. This preamp has a robust gain range, making it ideal for recording a variety of different input sources. This expanded version of the API3214 comes complete with a stereo mixer and transformer balanced outputs, giving you more flexibility and control over your input sources. This unit comes complete with all the things you'd expect from a quality preamp including four XLR mic inputs, four 1/4'' unbalanced inputs, stereo panner with level control, post ''fader'' aux send and more. With its comprehensive functionality, straight-forward design and high sound quality, the API 3214MB+ is the perfect addition to any sound engineers set-up.

Product Ref: 61097

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Buy on finance from £106.62 per month Finance from £106.62 per month  

  • 15.9%
  • £135.04
  • £4,861.44
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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API Console Circuitry

Using the same preamp circuit found in API consoles, the API 3214MB+ provides high quality audio inputs, giving you great sound and performance that attribute to API's strong reputation in the music world. Using the RE-116 K mic input transformer and the same output transformer found in all API equalizers, this unit ensures the highest quality sound whilst not compromising on functionality.

Perfect For Microphones And Instruments

All microphone inputs are powered by the internal 48V Phantom Power supply with a front panel 20dB pad switch that affect both the mic and line in. This preamp can provide up to 65dB of gain to an output clip level of 30+dBm, making it ideal for a range of input sources from instruments to microphones. The HI-Z front panel input is routed through the op-amp, allowing for low level inputs such as string based instruments to be amplified without the need for a matching transformer or direct box. The Hi-Z's input range spans up to +22dB giving you added versatility when it comes to keyboards or other high level devices.

Versatile Application

API's reputation for quality means this product is ideal for a whole range of different audio applications. From the studio to a live environment, this preamp ensures high quality sound output and a range of comprehensive features for audio manipulation. Designed with the professional engineer in mind, the 3214MB+ is ideal for studio use giving you four channels of API console quality preamp performance, but its compact and durable design also make it great for concert environments.


  • Uses API 2520 Op-Amplifier
  • Classic Console Circuitry
  • Four XLR Mic Inputs
  • Four 1/4'' Un-Balanced Inputs
  • Front Panel Polarity Switch
  • Front Panel 20 dB PadSwitch
  • Front Panel Mic/Line Switch
  • Front Panel 48V Power Switch
  • Output Clips at +30 dBm


  • 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
  • Clipping Level: XLR Channel Output better than +28 dBm
  • 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

For more information on the API 3124MB+ please refer to the PDF above.