The Sound Devices HX-3 is a remarkably robust and well crafted portable headphone amplifier intended for professional location use in the film, broadcast, and music industries.
The HX-3 is among the elite of it's category in terms of flexible design and durability of construction, offering a very high level of sound quality and frequency response.
Loaded with features, both practical and technical, the HX-3 also comes with a very affordable price tag.
Very lightweight, AA battery powered portable 3-channel headphone amplifier
Durable, high-strength, extruded aluminum chassis with protective end paneling
High output, very low noise; frequency response from 10 Hz - 50 kHZ
Three isolated headphone outputs with individual volume controls
125 dB dynamic range with flat frequency response
Panel mounted headphone connectors
Dual XLR line level plus 1/4" and 1/8" stereo input connectors
All-metal connectors solidly mounted to the chassis for durability and RF immunity
Stereo or mono monitoring
Peak LED indicates headphone overload
Loop Output to connect additional HX-3's in series
Internal battery-power for up to 18 hours from two AA alkaline batteries
Power LED with low battery indication
Chassis-isolated 5 to 18 VDC input for external alternative DC powering.
Locking DC connector
Form Factor | Tabletop |
Number of Headphone Channels | 3-Channel |
Display | None |
Connectivity
Analog Audio I/O | 2 x XLR 3-Pin Balanced Line Input 1 x 1/4" TRS Unbalanced Stereo Input 1 x 1/8" / 3.5 mm TRS Unbalanced Stereo Line Input 3 x 1/4" TRS Headphone/Line Output 1 x 1/8" / 3.5 mm TRS Headphone/Line Output 1 x 1/4" TRS Thru |
Performance
Frequency Response | 10 Hz to 50 kHz ±1 dB (Mid Gain) |
Maximum Output Level | +18 dBu |
THD+N | 0.03% (Max, 10 Hz to 22 kHz, 300-Ohm Load) |
Power
Battery Type | 2 x AA |
Physical
Dimensions | 5.5 x 3.7 x 1.7" / 140 x 94 x 43 mm |
Weight | 1.2 lb / 0.6 kg |