Bones London - Audio Equipment Radial Engineering - Free user manual and instructions
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| Product Type | Passive Direct Box (DI) |
| Brand | Radial Engineering |
| Model | Bones London |
| Input Connectors | 1/4" TS unbalanced, 1/4" TRS balanced |
| Output Connector | XLR male balanced |
| Input Impedance | 140 kΩ (unbalanced), 10 kΩ (balanced) |
| Output Impedance | 600 Ω |
| Frequency Response | 20 Hz - 20 kHz (±0.5 dB) |
| Dynamic Range | >110 dB |
| Total Harmonic Distortion | <0.01% @ 1 kHz |
| Power Requirement | None (passive) |
| Ground Lift Switch | Yes |
| Pad Switch | -15 dB |
| Construction Material | Steel chassis with baked enamel finish |
| Dimensions (H x W x D) | 2.0" x 4.5" x 5.0" (51 x 114 x 127 mm) |
| Weight | 1.2 lbs (0.54 kg) |
| Warranty | 3 years limited |
| Operating Temperature | -10°C to 45°C (14°F to 113°F) |
| Accessories Included | Quick start guide |
| Certification | CE, FCC |
Frequently Asked Questions - Bones London Radial Engineering
What is the Radial Bones London used for?
The Bones London is a passive direct box used to connect unbalanced instrument signals to balanced XLR inputs on mixing consoles, audio interfaces, or PA systems, while eliminating ground loops.
Does it require phantom power?
No, the Bones London is a passive DI box and does not require phantom power. It operates without external power.
How do I connect a guitar to the Bones London?
Connect your guitar’s output to the 1/4" input using a standard instrument cable. Then connect an XLR cable from the output to your mixer or interface.
What does the ground lift switch do?
The ground lift switch breaks the ground connection between the input and output, helping to eliminate hum and buzz caused by ground loops.
When should I use the -15 dB pad?
Use the -15 dB pad when connecting high-output sources (like active basses or keyboards) to prevent overloading the input of the mixing console.
Can I use it with a keyboard or synth?
Yes, it works well with keyboards, synthesizers, and any line-level or instrument-level unbalanced source.
What is the input impedance?
The input impedance is 140 kΩ for unbalanced inputs and 10 kΩ for balanced inputs, making it suitable for passive and active pickups.
Is the Bones London shielded?
Yes, it features a rugged steel chassis that provides excellent EMI and RFI rejection.
What is the frequency response?
The frequency response is 20 Hz to 20 kHz with ±0.5 dB variation, ensuring transparent signal transmission.
How do I clean the Bones London?
Use a dry or slightly damp cloth to wipe the chassis. Avoid harsh chemicals. Do not spray liquids directly onto the unit.
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USER MANUAL Bones London Radial Engineering
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Product information
Brand : Radial Engineering
Model : Bones London
Category : Audio Equipment