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Help CenterAlctron H4 Professional High-power 4 Channel Headphone Preamplifier, Headphone Amplifier,Pro Line Distribution System
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Introduction:
Alctron H4 is a professional high-power 4-channel headphone amplifier and line distribution system that's perfect for the most demanding professional stage and studio applications, it is suitable for almost all the headphones in the markets.It features 4 channels stereo input,4 channels stereo output and 4 channels line output.Separate volume control for each channel adjusts the level to both headphone and parallel line outputs.Each channel has a select switch, you can monitor the signal of a separate channel or all the channels via the select switch.The switch also has the function of mute.It can turn off the signal of the headphone at any condition.Perfect circuit design and extremely low noise component(IC4558 Amp.) adopted make the sound transparent and clear.Anyway, it isa perfect device for stage or studio.
Specifications:
AUDIO INPUTS
Connectors..........1/4"jack
Type........Unbalanced
Impedance........47k Ohms
Peak input level........+25dB
Gain control range........+35dB
HEADPHONE POWER AMPLIFIER OUTPUTS
Max output level........300mW@32 Ohms(max 1w@32 Ohms)
Output impedance........22 Ohms
Max.gain........+ 20dB
DISTORTION FREQUENCY RESPONSE,S/N RATIO &CROSSTALK
Distortion........0.02%
Frequency response........20Hz~20kHz,0dB~2dB
S/N Ratio........Better than 80dB
Crosstalk rejection........>68dB@1kHZ;20dB input
FUNCTION CONTROLS
Volume........Per channel,variable
Signal selectors........Per channel,variable
LINE DISTRIBUTION OUTPUTS
Connectors........1/4"jack
Type........Unbalanced/Parallel
POWER SUPPLY
AC requirements........Selectable.~100-120VAC,~200-240V AC,50-60Hz
Power consumption........11.5VA
Fuse........100-120VAC:630mA(slow-blow)
200-240VAC:315mA(slow-blow)
100-240VAC:500mA(slow-blow)
5x20mm glass type
Power cord connector........Standard IEC receptacle with built-in fuse holder
PHYSICAL
Dimensions........1.75"x19"x8.5"(44.5x482.6x217mm)
weight........6.93lbs(3.15kg)
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