Detail 01
Gain reduction: 100%, 50%, 25%, 0%
Choose full level or two reduced-output settings as required by the setup.
Product detailSKU #1444141024170
Radial EngineeringHeadload Prodigy Combination Load Box and DI 8 Ohm
1/8
Independent shopping perspective
The Korena take
Built around an 8-ohm load, the Headload Prodigy lets you run an amplifier at reduced speaker volume, record without a speaker cabinet, or send its JDX Reactor direct output in place of a microphone. Select full output, 50%, or 25% attenuation to manage level while driving the amp. The JDX section provides cabinet-shaped filtering, transformer isolation, and ground-lift capability. Bass and treble EQ, separate line outputs, and a headphone level control make it practical for silent recording, in-ear monitoring, and added routing.
Strong match
Who this is for
- Silent recording sessions that need amplifier distortion without a speaker cabinet in the room.
- Reducing an amplifier from full output to 50% or 25% while retaining a connected speaker setup.
- Sending a post-JDX, post-EQ signal to additional amplifiers or effects from the front-panel-controlled output.
Consider the trade-offs
When to look elsewhere
- Amplifier setups requiring a speaker-load version other than 8 ohms.
- Use outside dry locations or in temperatures below 5C or above 40C.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Low EQ: +/-9dB at 80Hz; High EQ: +/-9dB at 6kHz
Provides separate bass and treble adjustment for the monitored or routed signal.
Detail 03
Hi-Z 1/4-inch line output, pre or post EQ
The 1/4-inch output can be taken before or after equalization.
Detail 04
Headphone output: 400mW into 32 ohms
The built-in headphone amplifier has its own level control for silent practice.
Detail 05
Construction: 14-gauge steel chassis and outer shell
The steel enclosure includes a carry handle and protective book-end side design.
Final check
Know before you order
- 01Match it to an 8-ohm amplifier setup.
- 02Power comes from an external 15VDC supply; the unit includes a cable clamp to help prevent accidental disconnection.
- 03One or two units can occupy one 19-inch rack space with the optional rack kit.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can the Headload Prodigy be used for silent recording?
Yes. It can run without a speaker cabinet for silent recording, with a headphone amplifier for monitoring.
02What attenuation levels are available?
It offers 100%, 50%, and 25% gain-reduction settings.
03Can it replace a mic on a guitar cabinet?
Its built-in JDX Reactor is designed to replace a microphone and provides a filtered direct output.
04Does it provide outputs for other gear?
Yes. It has two 1/4-inch outputs: one direct from the amp and one post-EQ/post-JDX.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsSound
- Frequency Response
- Shaped to emulate a classic guitar cabinet
- Power
- Radial +/-15V 400mA power supply
1 detailsPickups & controls
- Audio Circuit Type
- Passive attenuation circuit with active equalization
3 detailsBody & build
- Body Finish
- Durable powder coat
- Construction
- 14 gauge steel chassis & outer shell
- Finish
- Durable powder coat
5 detailsConnections & power
- Output Level Max 20hz
- +14dBu
- Headphone Output
- 400mW into 32 ohm
- Input Output Impedance
- 4 ohm, 8 ohm, 16 ohm speaker load (model dependent)
- Output Level Max 1khz
- +17dBu
- Maximum Input
- 130 watts continuous
2 detailsSize & weight
- Weight
- 5.3
- Shipping Weight
- 6.5lbs (2.9kg)
14 detailsOther
- Equalization
- Low EQ: +/- 9dB @ 80Hz
- Unbalanced Line Out
- Hi-Z 1/4 inch, pre or post EQ
- Ground Lift
- Disconnects pin-1 at the XLR input
- Balanced Line Out
- 250 ohm post EQ
- Gain
- -30dB/-42dB
- Shipping Size
- (L x W x H) 14.5 inch x 8.75 inch x 4.75 inch (368.3 x 222.2 x 120.7mm)
- Intermodulation Distortion
- 0.05%
- Warranty
- Radial 3-year, transferable
- Total Harmonic Distortion
- 0.05%
- Gain Reduction
- 100%, 50%, 25%, 0%
- Noise Floor
- -106dBu
- Size
- (L x W x H) 10.25 inch x 5,9 inch x 3.75 inch (260.3 x149.7 x 95.2mm)
- High EQ
- +/- 9dB @ 6KHz
- Conditions
- For use in dry locations only between 5C and 40C
