JR-2 - Uncategorized Radial Engineering - Free user manual and instructions
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| Product Type | 2-Channel Rackmount Direct Box |
| Manufacturer | Radial Engineering |
| Model | JR-2 |
| Dimensions | 19" rack mount, 1U height |
| Weight | Approximately 1.5 kg (3.3 lbs) |
| Power | Passive, no power supply required |
| Inputs | 2 x 1/4" TS line inputs |
| Outputs | 2 x XLR balanced outputs |
| Transformer Isolation | Yes, each channel is transformer isolated |
| Frequency Response | 20 Hz to 20 kHz, +/- 0.5 dB |
| Signal Conversion | Unbalanced to balanced line level conversion |
| Impedance Matching | Optimized for low-noise operation with mixers |
| Ground Lift | Per-channel ground lift switch |
| Chassis | Durable steel construction |
| Mounting | Standard 19" rack mountable |
| Channel Count | 2 independent channels |
| Main Functions | DI, signal level matching, hum and buzz elimination |
| Maintenance | No internal battery or active components, minimal upkeep |
| Cleaning | Wipe dry with a soft, lint-free cloth |
| Safety | No user-serviceable parts, do not attempt disassembly |
| Spare Parts and Repairability | Service available through authorized Radial dealers |
| General Information | Designed for professional audio and stage use |
Frequently Asked Questions - JR-2 Radial Engineering
What is the Radial Engineering JR-2 used for?
The JR-2 is a 2-channel rackmount direct box used to convert unbalanced signals from equipment like keyboards, amplifiers, or effects units into balanced low-impedance signals for connection to mixing consoles or PA systems. It provides transformer isolation to eliminate hum and noise.
Does the JR-2 require phantom power?
No, the JR-2 is a passive direct box. It does not require phantom power or any external power source to operate.
How do I connect the JR-2 to my mixer?
Connect the 1/4" line input from your source to the JR-2's input jack. Then run an XLR cable from the balanced output to a microphone input channel on your mixer. Be sure to set the mixer input gain appropriately.
Can I use the JR-2 with an electric guitar or bass?
The JR-2 is designed for line level signals, but it can also work with instruments if the input level is adequate. However, for direct guitar or bass pickup, a dedicated instrument direct box with input impedance matching might be preferable.
How can I download the JR-2 user manual in PDF format?
You can download the free PDF manual from notice-facile.com by visiting the product page and clicking the download button. The manual is available in English and contains setup and usage instructions.
What is the warranty on the Radial Engineering JR-2?
Radial Engineering typically offers a 3-year transferable warranty covering defects in materials and workmanship. Check the included manual or radialengineering.com for complete warranty details.
How do I clean the JR-2?
To clean the JR-2, disconnect all cables and use a soft, dry cloth to wipe the front panel and rack ears. Avoid using solvents or abrasive cleaners that may damage the finish.
Is the JR-2 balanced on both inputs and outputs?
The JR-2 accepts unbalanced inputs on 1/4" jacks and provides balanced outputs on XLR connectors. The internal transformer converts the signal and provides common-mode noise rejection.
Can I use the JR-2 with consumer audio devices like a consumer CD player?
Yes, consumer line level signals from devices such as CD players or laptops can be connected to the JR-2. The ground lift switch may help eliminate ground loop hum when connected to a PA system.
What are the physical dimensions of the JR-2?
The JR-2 has a standard 19" rack width and occupies one rack unit (1U) in height. The depth is approximately 140 mm (5.5 inches), and the unit weighs about 1.5 kg (3.3 lbs).
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USER MANUAL JR-2 Radial Engineering
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Product information
Brand : Radial Engineering
Model : JR-2
Category : Uncategorized