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General| Brand | Radial Engineering |
|---|---|
| Model | J48 MK2 |
| Category | Signal Processors |
| Language | English |
Reduces input signal by 15dB for clean, distortion-free signal acquisition.
Indicates presence of 48V phantom power when used with the low-cut filter switch.
Merges stereo inputs to a mono output at the XLR connector.
Connects instrument to the DI and the DI to the amplifier.
Protects switches and connectors from damage during stage use.
AES standard balanced output and phase inversion switch for signal flexibility.
Reduces bass frequencies and eliminates ground loop hum.
Provides stability and electrical isolation on various surfaces.
Features welded I-beam frame, double-sided PC board, and high-cycle switches.
Utilizes DC-DC switching supply and oversized capacitors for enhanced headroom.
Durable finish providing years of performance and aesthetic appeal.
Provides instructions for connecting and operating the J48 for immediate use.
Explains the purpose and function of direct boxes in audio systems.
Details how the J48 converts high impedance instrument signals to low impedance.
Explains how the J48 derives power from 48V phantom supply.
Discusses how the J48 handles high transients and prevents distortion.
Explains how the J48 eliminates noise from ground loops via transformer isolation.
Highlights the straightforward design and user-friendly operation of the J48.
Details the use of input and thru-put jacks for instruments and amplifiers.
Explains how high input impedance minimizes loading on instrument pickups.
Addresses input distortion issues with active instruments and the J48's solution.
Describes the merge function for summing stereo sources to mono.
Details how the ground lift switch breaks ground paths to eliminate hum.
Explains the mic-level, balanced output and its AES standard wiring.
Discusses benefits for phase alignment and tonal experimentation.
Highlights robust construction, book-end design, and switch durability.
Explains the role of the isolation pad in preventing shock hazards.
Information on rackmounting multiple Radial units using the J-Rak.
Visual representation of the J48's signal path and internal components.
Detailed technical specifications including impedance, frequency response, and dimensions.
Explains the core differences between active and passive direct boxes.
Discusses how active DIs like the J48 prevent loading issues.
Highlights the J48's ability to handle high output instruments without distortion.
Explains why the LED does not stay on to prioritize sound quality.
Provides steps to diagnose and resolve issues when no sound is produced.
Discusses the importance of a faithful signal transport for direct boxes.
Outlines the warranty coverage, exclusions, and claim procedures.
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