Radial JDX Reactor Guitar Amp DI Box

189.00 (including VAT @ 23%)

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Item available to order

This item is available to order, and we do not currently have the item in stock.

When you place your order, we will request the item from our supplier as soon as possible. We will dispatch this product to you as soon as it is received from our supplier.

"Estimated delivery to you" is our estimate of when we will be able to deliver the product to you, based on our supplier's normal delivery timescales. If we become aware it is going to take significantly longer than normal to deliver this item, we will let you know, otherwise, we will advise by email or text message when the item has been dispatched from our distribution centre.

Estimated delivery to you: 7th November 2016

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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: €12.30
(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.
  • Our Money Back guarantee is extended from 30 days to 90 days (terms apply after 30 days)
  • Collection and delivery costs are included for the first two years
  • Claim 50% cash back on the cost of the policy after 5 years if it has not been used!
  • Warranty is transferable if the item is re-sold
  • Loan or replacement equipment will be provided if the product isn't repaired within 30 days
  • If an item can not be repaired, a similar alternative product or cash discount (as defined in this policy) will be offered
  • The policy can be cancelled within 30 days, and at any time after that for a pro-rata discount

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: 40398

  • Captures The Sound Of The Head And Cabinet
  • Delivers Consistent Tone Show After Show
  • Works Equally Well In Electric Guitar And Bass
  • Great For Recording Direct Without A Mic

Radial JDX Reactor Guitar Amp DI Box


The Radial JDX Reactor is a direct (DI) box designed to capture the dynamics and warmth of an electric guitar amplifier by connecting between the guitar amp head and speaker cabinet, delivering a sound very alike to a well placed microphone whilst removing inconsistencies.

Product Ref: 40398

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Full Description

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The Radial JDX Reactor guitar and bass DI box design features 100 discrete class-A circuitry. Unlike ordinary DI boxes the JDX also plugs in between the amp head and speaker cabinet allowing it to cleverly capture both the sound from the amp head along with the back electromagnetic impulse from the loudspeaker. This produces a more realistic representation of the entire guitar tone, superior to many other DI boxes. The signal is then processed via a carefully designed multi-stage filter to emulate the tone of a 4x12 half stack cabinet.

Using the JDX delivers greater consistency over a typical microphone, removing variables such as mic placement and room acoustics. This is most appreciated when using in-ear monitoring, as the tone remains consistent from one show to the next. Another advantage is a reduction in setup times and a more comfortable audio feed for the artist.

The JDX Reactor provides quick and easy set up, delivers great sound and provides consistency for both performers and audio engineers alike.


  • Audio circuit type: Discrete Class-A - Transformer Isolated
  • Frequency response: Shaped for Guitar Use
  • Dynamic range: 114dB
  • Noise floor: -100dBu below 0dbu
  • Maximum input: 600W @ 4? 300W @ 8? 150W @ 16?
  • Maximum output: +14dBu (clip level)
  • Thermal input limit: +49 VAC (from amplifier)
  • Total harmonic distortion: <0.015% (+10dBu input @ 1KHz)
  • Input impedance: 15k?
  • Output impedance: 2k? (XLR out)
  • 180° polarity reverse: Inverts signal polarity at the XLR output
  • Ground lift: Disconnects ground at the input transformer
  • Filter: Active speaker emulation band-pass filter
  • XLR configuration: AES standard (pin-2 hot)
  • Power: +15VDC/400mA adapter Included
  • Construction: 14 gauge steel chassis and outer shell, baked enamel finish
  • Size: 5" x 6.25" x 2" (127 x 159 x 51mm)
  • Weight: 2.80lbs (1.28 kg)