Sound Devices HX-3


Portable Headphone Distribution Amplifier


The HX-3: Portable 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, TV, Film, and Music Productions

The 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 552, 302, MM-1, and USBPre-2.

One-year standard warranty turns into two-years upon registration.

HX-3 Key Features List

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.

What’s in the box:

1 HX-3 Headphone Amplifier
1 Headphone adapter cable (1⁄4 inch to 1⁄8 inch)
1 Coaxial female power connector
4 Adhesive rubber “bumpers”
1 Product registration card
1 Packing List (this sheet)