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HX-3 User Guide and Technical Information 

3

Specifications

Frequency Response: 

10 Hz – 50 kHz, +/-1.0 dB, any input to any output, gain control set to 50% 

Voltage Gain: 

Gain

Loop Out

Headphone Output (1,2,3)

Bal. Line

–3 dB

34 dB

HP Input

–1 dB

35 dB

Output Clipping Level: 

+18 dBu minimum with 600 ohm load  
+16 dBu minimum with 300 ohm load 

Headphone Output Impedance: 

200 ohms 

Input Clipping Level:  

XLR:  +24 dBu minimum 

Dynamic Range:  
(Balanced line inputs) 

120 dB minimum 

THD + Noise: 

0.03% maximum (from 10 Hz – 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 

Note

:

 only one set of inputs (balanced or unbalanced) should be connected at a time.

Loop Output: 

Unbalanced, 200 ohm output impedance 

Internal Voltage Rails: 

±15 V and –15V, regulated 

Power: 

Internal

: 2 AA alkaline batteries, 12 hours life typical driving one 75 ohm headset.

External

: 5–17 VDC via threaded coaxial connector, (5.5 mm outer diameter, 2.1 mm inner diameter), 

pin positive, sleeve negative. Voltages above 17 VDC cause no damage to unit, but will open an inter-
nal poly fuse. Poly fuse will reset when voltage is removed. 

Power LED: 

Green indicates power and good battery. Red indicates power with low batteries. LED turns red when 
approximately 4 hours of battery life remain. 

Operating Temperature Range: 

0 to 70° C 
32 to 160° F 

Dimensions:  

43 mm x 94 mm x 140 mm (h x w x d)  
(1.7” x 3.7” x 5.55”) 

Weight: (unit only) 

0.56 kg, 1.24 lbs. 

Included Accessories: 

1/4-inch to 1/8-inch  
Tip-Ring-Sleeve interconnect cable  
rubber feet (4) 

Содержание HX-3

Страница 1: ...istribution Amplifier User Guide and Technical Information Sound Devices LLC E7556 State Rd 23 33 Reedsburg WI USA 1 608 524 0625 fax 1 608 524 0655 Toll Free 800 505 0625 www sounddevices com support sounddevices com ...

Страница 2: ...ars of superb audio performance under the most punishing field conditions Features High Performance Headphone Amplifier Three independent headphone outputs with individual volume controls Dynamic range exceeding 120dB 10 Hz to 50 kHz audio bandwidth Capable of driving headphones to high levels with very low distortion Peak indicators show overload of each headphone feed Stereo Mono switch Flexible...

Страница 3: ... Note only one set of inputs balanced or unbalanced should be connected at a time Loop Output Unbalanced 200 ohm output impedance Internal Voltage Rails 15 V and 15V regulated Power Internal 2 AA alkaline batteries 12 hours life typical driving one 75 ohm headset External 5 17 VDC via threaded coaxial connector 5 5 mm outer diameter 2 1 mm inner diameter pin positive sleeve negative Voltages above...

Страница 4: ...no for mono headphone monitoring 2 Headphone Gain Controls Volume of each headphone output 3 Headphone Peak LED Illuminates 3 dB before clipping to indi cate onset of headphone distortion 4 POWER LED Bi color LED illuminates green when the unit is powered and changes to red when approximately four hours of bat tery life remain 5 POWER Switch Powers the unit from either Internal bat teries or Exter...

Страница 5: ...onnection enabling intercon nection of multiple HX 3 s Loop Out is T R S unbalanced stereo connection Output Panel Connectors 1 2 3 1 HEADPHONE OUTPUTS Panel mounted headphone jack for each output Output 1 has 1 8 inch jack in parallel with inch jack 2 BATTERY Compartment Requires two AA batteries for operation Insert positive end of battery first 3 DC Input Locking coaxial DC input accepts volt a...

Страница 6: ...performance of the HX 3 does not vary throughout the life of the batteries Several factors affect battery life including battery chemistry ambient temperature of operation head phone impedances headphone drive levels and the number of headphones in use The chart below can be used as a starting point to estimate battery life Experimentation is recommended to determine bat tery life for each individ...

Страница 7: ...nitor R One or more units can be added and daisy chained for additional headphone feeds from a mixing console Loop additional HX 3 amplifiers with the included Link cable Mixing Console Monitor L Monitor R The headphone outputs of portable audio electronics can be connnected to the HX 3 for additional headphone feeds The included 1 4 inch to 1 8 inch can be used to connect the line out or headphon...

Страница 8: ...d RF immunity 10 V m 80 1 kHz amplitude modula tion EN61000 4 4 1995 IEC1000 4 4 1995 EFT Burst I O lines 0 25 kV to 1 0 kV EN61000 4 6 1996 IEC61000 4 6 1996 Conducted RF immunity 10 V 80 1 kHz amplitude modulation Tested by L S Compliance Inc Cedarburg Wisconsin February 15 2003 Matthew Anderson Director of Engineering Sound Devices LLC FCC Statement This device has been tested and found to comp...

Страница 9: ...Y OR OTHER SIMILAR AUDIO OR VIDEO DEFECTS ARISING FROM RELATED TO OR OTHERWISE ATTRIBUTABLE TO THE PRODUCTS OR THE END USER S USE OR OPERATION THEREOF REGARDLESS OF WHETHER SUCH DAMAGES ARE CLAIMED UNDER CONTRACT TORT OR ANY OTHER THEORY CONSEQUENTIAL DAMAGES FOR WHICH SOUND DEVICES SHALL NOT BE LIABLE SHALL INCLUDE WITH OUT LIMITATION LOST PROFITS PENALTIES DELAY DAMAGES LIQUIDATED DAMAGES AND OT...

Страница 10: ... do not permit the exclusion or limitations set forth above they may not apply in all cases For all service including warranty repair please contact Sound Devices for an RMA return mer chandise authorization before sending your unit in for repair Product returned without an RMA number may experience delays in repair When sending a unit for repair please do not include ac cessories including SSD dr...

Страница 11: ......

Страница 12: ...HX 3 User Guide and Technical Information Printed in U S A ...

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