Radial JDX 48 Phantom Power Guitar Speaker Emulator

Replace mics and bring consistency to your live shows by capturing the sound of your amp head and emulating the tone of a 4x12 cab with the Radial JDX 48.

The Radial JDX 48 Reactor is a direct box designed to capture the explosive dynamics and warmth of an electric guitar amplifier by connecting between the guitar amp head and speaker cabinet. This delivers a sound that is similar to a well-placed microphone while eliminating the frustrating inconsistencies.

The design begins with 100% discrete class-A circuitry and a transformer-coupled 'reactive load' that captures both the sound from the amp head along with the back electromagnetic impulse from the loudspeaker. This produces a more realistic rendering than the usual resistive pad offered by other manufacturers. The signal is then processed via a carefully designed multi-stage filter to emulate the tone of a 4x12 half stack cabinet.
In use, the JDX 48 delivers greater consistency over a typical microphone as irregularities such as mic placement and varying acoustics no longer play the dominant role on stage. This is most appreciated when using in-ear monitors as the tone remains consistent from one show to the next, resulting in shorter setup times and a more comfortable audio feed for the artist.

Although originally designed for guitar, the JDX has also become a favorite on bass. The clarity and punch in the lower midrange delivers a tone that is reminiscent of an Ampeg SVT connected to an 8x10 cabinet. On guitar it sounds as if you have a Shure SM57 in front of a Marshall half-stack. This version also offers greater power handling for 300-watt amps and extended low end for read more deep bass frequencies.
The JDX 48 Reactor... the most natural sounding amp DI ever!


- Captures sound of both the head and the cabinet
- Delivers consistent tone - show after show
- Works equally well on electric guitar and bass
- Can be used with 48V phantom power or DC supply
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.
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- Audio circuit type: Discrete Class-A - Transformer Isolated
- Frequency response: Shaped for guitar use
- Dynamic range: 114dB
- Noise floor: -100dBu below 0dBu
- Maximum input: 120W @ 8Ohm
- Maximum output: +14dBu (clip level)
- Thermal input limit: +49 VAC (from amplifier)
- Total harmonic distortion: <0.015% (+10dBu input @ 1 KHz)
- Inter-modulation distortion: 0.03% (+10dBu input @ 1 KHz)
- Input impedance: 15kOhm
- Output impedance: 2kOhm (XLR out)
- Bass extension: Lowers frequency response for bass guitar
- 300 Watt amp: Increases power handling from 100W to 300W
- 180* polarity reverse: Inverts signal polarity at the XLR output
- Ground lift: Shunts ground via a resistive network
- Filter: Active speaker emulation band-pass filter
- XLR configuration: AES standard (pin-2 hot)
- Power: 48V phantom or +15VDC/400mA adapter Included
- Construction: 14 gauge steel chassis and outer shell
- Finish: Durable powder coat
- Size: 5 x 6.25 x 2" (127 x 159 x 51mm)
- Weight: 2.80lbs (1.28 kg)
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 2.5 lbs
Shipping Dimensions: 11 x 5 x 3 in
Manufacturer Part Number (MPN): R800 1402

For support or warranty questions, please contact the manufacturer:
Phone: 604-942-1001


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