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Headload Guitar Amp Load Box

Guitar Amp Load Box

The Headload? is a power attenuator that connects between your amplifier and speaker to capture the dynamics and warmth of your amp at low, neighbour-friendly volumes

.Combination load box and DI with speaker emulation

Available in 4, 8, or 16 Ohms

Can handle up to 130 watts RMS (180 peak)

Attenuate down to 1% of total power

Sound Loud, Play Quiet!

Featuring two built-in JDX amp DIs—one pre-EQ and one post-EQ—the Headload eliminates the need to use a microphone to capture the sound from your amplifier. Should you decide to combine the DI signal with a microphone, the Headload is augmented with a built-in Radial Phazer to time-align the two signals to create massive tones. The Headload uses a 6-position rotary switch to set the desired power reduction from unaltered all the way down to complete silence. When the output is completely soaked, the high-quality headphone amplifier can be used for silent 3:00AM practicing.

Headload Specifications

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 ?

Output Impedance: 250 ?

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