- 1/4-inch TRS stereo headphone outputs (x3)
- 1/8-inch TRS stereo headphone output
- Battery tube (2 x AA)
- DC input, 5 - 18 VDC
HX-3 Key Features
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 552, 302, MixPre-D, MM-1 and USBPre-2.
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.
Specification
Frequency Response
- 10 Hz - 50 kHz, -±1.0 dB, any input to any output, gain controls set to 50%
Voltage Gain
- 34 dB from balanced line to headphone output, 35 dB from headphone input to headphone output
Output Clipping Level
- +18 dBu minimum with 600 ohm load, +16 dBu minimum with 300 ohm load
Headphone Output Impedance
Input Clipping Level
- XLR: +24 dBu minimum
- 1/4-inch and 1/8-inch inputs: +22 dBu minimum
Dynamic Range (balanced line inputs)
THD + Noise
- 0.03% maximum (from 10 Hz to 22 kHz @ +10 dBu input and output level, 300 ohm load, 10 Hz - 22 kHz filter bandwidth)
Inputs
- XLR: electronically balanced, 22k ohm input impedance, 1/4-inch unbalanced: 9.1k ohm impedance
- 1/8-inch unbalanced: 9.1k ohm impedance.
