Switchbone JX-2 - Audio Device Radial Engineering - Free user manual and instructions
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| Product Type | Active ABY Switcher / Guitar & Bass Selector |
| Brand | Radial Engineering |
| Model | Switchbone JX-2 |
| Power Supply | 9VDC adapter (center negative) or internal 9V battery |
| Current Draw | Approximately 15 mA |
| Inputs | 1 x 1/4" instrument input |
| Outputs | 2 x 1/4" buffered outputs (A and B), 1 x 1/4" tuner/mute output |
| Frequency Response | 20 Hz - 20 kHz (±0.5 dB) |
| Input Impedance | 220 kΩ (active buffer) |
| Output Impedance | 100 Ω (buffered outputs) |
| Maximum Input Level | +10 dBu |
| Noise Floor | -100 dBu (A-weighted) |
| Isolation | Transformer-isolated output (A) to eliminate ground loops |
| Phase Correction | 180° polarity reverse switch on output A |
| Ground Lift | Lifts pin 1 on XLR or ground on 1/4" (via internal switch) |
| Controls | Footswitch A/B, Mute, Drag control (load correction), Power indicator LED |
| Construction | 14-gauge steel chassis, baked enamel finish |
| Dimensions (L x W x H) | 5.6" x 3.75" x 2.25" (142 x 95 x 57 mm) |
| Weight | 1.2 lbs (0.54 kg) |
| Accessories Included | 9V power adapter (Mu-FX type), quick start guide |
| Warranty | 3 years (Radial limited warranty) |
Frequently Asked Questions - Switchbone JX-2 Radial Engineering
What is the Radial Switchbone JX-2 used for?
The Switchbone JX-2 is an active ABY switcher designed for guitarists and bassists to switch between two amplifiers or combine them. It features transformer isolation to eliminate ground loops and phase correction.
Does the Switchbone JX-2 require external power?
Yes, it can be powered via a standard 9VDC center-negative adapter or an internal 9V battery. The adapter is included.
How do I eliminate hum when using two amps?
Use the Ground Lift switch on output A to disconnect the ground pin, and the Phase Reverse switch to correct polarity differences between amps. The transformer isolation on output A also helps.
What is the 'Drag' control?
The Drag control simulates the load of a passive guitar pickup when using long cable runs, preserving the natural tone and treble response.
Can I use the Switchbone JX-2 with a tuner?
Yes, the unit has a dedicated Tuner/Mute output that mutes the main outputs when engaged, allowing silent tuning.
What is the maximum input level?
The maximum input level before clipping is approximately +10 dBu, suitable for passive and active pickups.
Is the Switchbone JX-2 true bypass?
No, it uses active buffered switching. The buffers maintain signal integrity and drive long cables without tone loss.
Can I use both outputs simultaneously?
Yes, you can select A, B, or both. The A+B mode combines both outputs with the phase and ground controls to avoid issues.
How long does the battery last?
With a standard 9V alkaline battery, the Switchbone JX-2 typically operates for approximately 1,500 hours due to its low current draw (~15 mA).
What is the warranty period?
Radial Engineering offers a 3-year limited warranty against defects in materials and workmanship.
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USER MANUAL Switchbone JX-2 Radial Engineering
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Product information
Brand : Radial Engineering
Model : Switchbone JX-2
Category : Audio Device