|Audio circuit type:||Discrete Class-A - Transformer Isolated|
|Frequency response:||Shaped for Guitar Use|
|Signal to noise ratio:|
|Noise floor:||-100dBu below 0dBu|
|Maximum input:||600W @ 4Ω 300W @ 8Ω 150W @ 16Ω|
|Maximum output:||+14dBu (clip level)|
|Thermal input limit:||+49 VAC (from amplifier)|
|Total harmonic distortion:||<0.015% (+10dBu input @ 1KHz)|
|Inter-modulation distortion:||0.03% (+10dBu input @ 1KHz)|
|Output impedance:||2kΩ (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|
|Finish:||Durable powder coat|
|Size:||Size: 5" x 6.25" x 2" (127 x 159 x 51mm)|
|Weight:||2.80lbs (1.28 kg)|
The Radial JDX 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 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 mid range 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.
The Radial JDX is connected in between the head and the cabinet where it taps a minute signal off the circuit. The reactive load captures both the sound from the head and the impulse from the cabinet for a more realistic tone.