Product Overview
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.
Features:
- Three high-current stereo headphone outputs
- Individual volume control for each headphone feed
- Stereoor mono headphone monitoring
- Peak LED - shows if headphones are clipping
- Loop output to connect additional HX-3 amps
- Flexible inputs - balanced line level XLR, stereo 1/4", and stereo 1/8" inputs
- Battery (2 x AA) or external 5-17 VDC powering
- Quick change battery compartment
- Compact, durable mechanical construction
Specifications:
- Frequency Response: 10 Hz-50 kHz, +/-1.0 dB, any input to any output gain controls set to 50%
- Voltage Gain:
- * 34 dB - Bal line to headphones
- * 35 dB - 1/4"& 1/8" to headphones
- Output Clipping Level:
- * +18 dBu minimum with 600ohm load
- * +16 dB minimum with 300 ohm load
- Headphone Output Impedance: 200 ohms
- Input Clipping Level:
- * XLR: +24 dBu minimum
- * 1/4"& 1/8" inputs: +22 dBu minimum
- Dynamic Range (balanced line inputs): 120 dB minimum
- THD + Noise: 0.03% maximum (from 10 Hz to 22 kHz @ +10 dBu input and output level)
- Inputs
- * XLR: electronically balanced, 22 kohm input impedance
- * 1/4" unbalanced: 9.1 kohm impedance
- * 1/8" unbalanced: 9.1 kohm impedance
- Loop Output: Unbalanced, 200 ohm output impedance
- Internal Voltage Rails: +15 V and -15 V, regulated
- Power
- * Internal: 2 AA alkaline batteries, 10 hours life typical with normal
- * External: 5-17 VDC via threaded coaxial connector
- Power LED: Green indicated power and good battery, Red indicates powerwith low batteries