Portable, Battery-Powered Headphone Distribution Amplifier

The compact HX-3 Headphone Distribution Amplifier is the perfect accessory to quickly provide three high-performance stereo headphone feeds with individual level controls from line-level sources. The HX-3 can produce very high headphone levels with extremely low noise and distortion.

Great for radio, television, film, and music production applications, the battery-powered HX-3 accepts balanced XLR line-level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs. Its 1/4-inch loop -out can connect multiple HX-3's for additional headphone outputs. Headphones are connected to panel-mounted 1/4-inch stereo connectors.

The HX-3 has a durable aluminum chassis to withstand the punishment of field and studio environments. The unit is powered by inexpensive batteries (two-AA) or external 5-18 VDC.

The HX-3 can add headphone outputs to the 442, 302, MixPre, MM-1, and USBPre.

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• Download User Guide.

Key Features

• Three isolated headphone outputs with individual volume controls.
• 125 dB dynamic range with flat frequency response.
• Durable 1/4-inch connectors, panel mounted for strength.
• Stereo or mono monitoring.
• Peak LED indicates headphone overload.
• Two balanced XLR line level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs.
• Loop Output to connect additional HX-3's in series.
• All-metal connectors solidly mounted to the chassis for durability and RF immunity.
• Free from "Pin-1" grounding problems.
• Internal battery-power for up to 18 hours from two AA alkaline batteries.
• Chassis-isolated 5 to 18 VDC input for easy external DC powering.
• Power LED indicates low battery power.
• High strength, extruded aluminum chassis with protective metal end panels.

Front Panel Features

• Headphone level control for each output (x3)
• Peak indicator for each headphone output
• Stereo/Mono selection switch
• Power LED indicates green when powered, red when batteries are low
• Power switch selects powering source

Input Panel

• Balanced, stereo line level input on XLR
• Unbalanced TRS stereo input on 1/4-inch connector
• Unbalanced TRS stereo input on 1/8-inch connector
• Loop output on 1/4-inch to link additional HX-3's

Output Panel

• 1/4-inch TRS stereo headphone outputs (x3)
• 1/8-inch TRS stereo headphone output
• Balanced TA3 line or tape  level outputs
• Battery tube (2 x AA)
• DC input, 5 - 18 VDC

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64 Oxford Road, New Denham, Uxbridge, UB9 4DN, England. VAT No. GB 341 0377 89