The Headload is a device that is intended to simulate the sound of a guitar cabinet and allow the user to compensate for the sound depending on the level that is being produced. That said, the following specifications do not provide any truly significant information as it is completely dependent on the amplifier and speaker cabinet in use. As such, we ask you to please review with the awareness that these measurements are truly subjective in nature. The Radial Headload is quite likely the most useful load box ever made.
Specifications
Block Diagram
Graphs
| Specifications | ||
|---|---|---|
| Audio circuit type: | Passive attenuation circuit with active equalization | |
| Gain: | -40dB typical | |
| Total harmonic distortion: | <0.05% | |
| Intermodulation Distortion: | <0.05% | |
| Input Impedance: | 8 Ω | |
| Output Impedance: | 250 Ω | |
| Noise: | -104dbu Unweighted | |
| Features | ||
| 180° polarity reverse, Ground lift, HPF, LPF, Level Control, Phase Adjustment, Speaker filter, Headphone | ||
| Input Connectors: | From Amp 1/4" | |
| Output Connectors: | XLR & 1/4" Pre and Post JDX, To Speaker 1/4" | |
| Extras: | Headphone output | |
| General | ||
| Construction: | 14 gauge steel chassis & outer shell | |
| Size (L x W x D): | 6.05" x 12" x 3.45" (154mm x 305mm x 87.6mm) | |
| Weight: | 8lbs. (3.63kg) | |
| Shipping size (L x W x D): | 8" x 14" x 5" (203mm x 365mm x 127mm) | |
| Shipping weight: | 10lbs. (4.5kg) | |
| Power: | Radial +/-15V 4-Pin 500mA power supply | |
| Conditions: | For use in dry locations only between 5°C and 40°C | |
| Warranty: | Radial 3-year, transferable | |
Frequency Response
What do these graphs mean? Learn what to look for and why it matters.
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