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)
Summary of Contents for HX-3
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