dbx 120A Subharmonic Synthesizer

236.00 RRP 297.00 (including VAT @ 23%)

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Item in stock with our supplier

This item is in stock at our supplier's warehouse.

When you order this item, it will be immediately dispatched from our supplier for delivery to Gear4music. When we receive the item we will package it carefully for its onward journey to you.

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Can be delivered to you on: 31st October 2016
FREE Delivery available.

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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: 5 year warranty: €15.35
(Includes 90 day money back guarantee)


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

However, the Gear4music extended warranty scheme provides an enhanced service, and is designed to offer a higher level of protection than many 'free' warranties offered by some retailers and manufacturers.

The highlights of this enhanced warranty service are:

  • Warranty is extended to 5 years from the date of delivery.
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Please note that this extended warranty is currently only available on products sold within the EU or EEA, and is subject to the terms and conditions as detailed on the extended warranty certificate provided.

For customers in outlying areas of the country, the price of the Extended Warranty may be marginally higher, due to the potential for higher collection and redelivery transport costs.

This enhanced warranty is in addition to the standard Gear4music and manufacturer warranty policies, and the Gear4music terms and conditions of trade. No statement or condition of sale contained within these terms affects or restricts your statutory rights as defined under the Consumer Contracts Regulation 2014.

Product Ref: 8830

dbx 120A Subharmonic Synthesizer


Why just rock the house when you can rattle the foundation loose. The wildy popular beat of "House Music" is likely to be driven by the throbbing, low-end bass of dbx Subharmonic Synthesizers in clubs around the world. For decades, the patented dbx Subharmonic Synthesis has been the secret weapon used by mobile DJ's and film and sound professionals to produce an impact unavailable from any other device unique because the dbx process actually produces a new, Waveform Modeled bass note, exactly an octave below the bass in the original audio. The dbx 120A Subharmonic Synthesizer with Modeled Waveform Synthesis has been specially optimized by dbx engineers for the needs of audio professionals. Its two separate bands of bass synthesis provide the best combination of smoothness and control, and the independent Low Frequency Boost circuit is designed to get the most out of high-performance low frequency speaker systems.

Product Ref: 8830

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Full Description

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Flexible system interfacing is achieved by providing both ¼" and RCA input connectors, along with main outputs which can be full range (including synthesis) or high frequency only, along with a separate subwoofer output with its own level control.

The 120A's patented subharmonic synthesis process actually builds the synthesized waveform using the waveshape of the original bass material. Unlike other attempts at bass synthesis, the dbx process produces smooth, musical low frequencies that don't interfere with mid and high-band information, even when maximum synthesis and boost are applied. The result is a low-end punch that people really feel, even at system levels that won't destroy sound equipment or damage hearing.



  • Frequency Response: 20Hz-20kHz ±0.5dB, (no synthesis, full-range mode) 15Hz-90kHz +0, -3dB
  • Input Impedance: >= 40k ohm Bal or 20k ohm unbal. (1/4") 20k ohm (RCA)
  • Maximum Input Level: +22dBu (1/4") +8.5dBV (RCA)
  • Output Impedance: 100 ohm, Impedance balanced
  • Maximum Output Level: +22 dBu into 600 ohm
  • Connector Type: 1/4" TRS jacks (inputs and outputs) RCA inputs
  • THD: 0.05% (no synthesis, either output)
  • Output Noise: -88dBu, controls@max., 22Hz > 22kHz unweighted (full range output)
  • Front Panel Controls: 26-36Hz and 36-56Hz Band Synthesis Level, Subharmonics, Low Frequency Boost, Subwoofer Output Crossover Frequency, Select, Crossover in/out
  • Indicators: Power, Crossover, Bypass
  • Metering: Synthesis activity (3 LEDs per band)
  • Dynamic Range: 112dB
  • Synthesis Frequency Range: 26-56Hz (from 54-110Hz input signal)
  • Crossover: 12dB/octave high pass (-3dB @ 80 Hz or 120Hz); 6dB/octave derived low pass. Phase-coherent (unity-sum)