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• Guitar amplifier direct box with reactive load
• Speaker cabinet emulation for natural tone
• Direct feed to console eliminates need for a mic
• Ideal for recording and live performance

North American Version, 120 VAC
Our Price: $199.99
MSRP: $220.00

Radial JDX Reactor – Guitar Amp Direct Box

Stompin notes...  Great tool for guitar and bass, live or studio.  Combine with the Phazer for phenomenally fat and rich tone.

The Radial JDX Reactor is a direct box designed to capture the explosive dynamics and warm tone of the electric guitar by connecting between the head and cabinet of a guitar amplifier to provide a direct feed to the PA or recording system.

100% discrete class-A circuitry, multi-stage filtering and a unique 'reactive' load all interact with the signal coming from the head and the electro-magnetic 'back' impulse from the cabinet to produce a more realistic rendering.

In use, the JDX improves on the consistency of the guitar signal over a typical microphone, as irregularities of mic placement and varying acoustics no longer play the dominant role on stage. When combined with a microphone, fatter tones can be created by double tracking and stereo imaging the two signals for more ‘produced’ results.

The JDX Reactor… another Power Tool from the creative minds at Radial.

Using the JDX with a Mic and a Radial Phazer:
The magic of the JDX is fully revealed when combining the JDX’s direct feed with a microphone while incorporating the Radial Phazer to phase-align the two signals. This combination let’s you dial-in the ‘sweet spot’ to produce fat rich guitar tones quickly. This is of particular advantage to touring bands that must set up quickly between gigs as they travel from one venue to another.

Frequently Asked Questions

Will the Radial JDX affect the impedance on my amp?
No. The JDX is designed to capture the powerful signal coming from the head and the back EMF from the speaker and tap off what it needs before being re-amplified and sent to the sound system. This has no affect on the amp load.

Can I use the JDX on a bass amp?
Yes – absolutely. It will produce the character of tone you would expect from 12” drivers which can prove to be quite good. Keep in mind many bass amps use 10” drivers such as the venerable Ampeg SVT.

Can I use the JDX without a speaker cabinet?
Not alone. You must use some sort of load box to absorb the energy coming from the head. Without a load of some sort, the JDX would overheat and explode and make a mess and because this would void your warranty, you will be upset for days!

Will the JDX sound OK with a load box?
Some load boxes are better than others, but so far, we have never tried one that sounds as good as a speaker cabinet. Load boxes simply take the energy from the amp and convert it to heat. This is not the same as driving a speaker.

Can I use the Radial JDX like a regular DI box?
No. It is designed specifically to handle high output levels from guitar amplifiers. Plugging a guitar directly into the JDX will not produce sufficient signal to drive the JDX.

Can I use the balanced output of the JDX to drive another guitar amp?
Yes! This ‘trick’ can lead to creative new tones where you are essentially using one amp like a distortion pedal before the signal is amplified by the second amp. You will need an XLR to ¼” cable wired like this: XLR pin-1 and pin-3 to ¼” ground (shield), XLR pin-2 to ¼” tip.

Will the JDX sound exactly like my head and amp?
No. The JDX simulates the sound of your amp and speaker and will generate a close facsimile. But don’t be fooled. Nothing will ever completely replace the sweet sound of a vintage Delux or the spatial feel of a JCM800 half stack turned to 11.