In-Dash
tm
FOUR.1
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Owner’s Enjoyment Manual
17
FOUR.1
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SPECIFICATIONS
All specifications are measured at 14.4 VDC (standard
automotive voltage) As technology advances, AudioControl
reserves the right to continuously change our specifications,
like our weather.
Maximum input/output level . . . . . . . . . . . . . . 9.5Vrms/13V peak
Frequency response . . . . . . . . . . . . . . . . . . . . . . . . 10Hz-100kHz;±1dB
Total harmonic distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.005%
Signal to Noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -110dB
Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Kohms
Output Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150ohms
Input gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20dB
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . switchable 2 source, 2-channel
Balanced inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes (switchable)
Balanced Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes (switchable)
Output ground isolation jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes
Equalization Cut/Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±12dB
Power supply . . . . . . . . . . . . . . . High-headroom PWM switching
Power draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mA
Recommended fuse rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Amp
Illumination Color . . . . . . . . . . . . . . . . switchable green or amber
Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1"H x 6.75"W x 5"D
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 lbs
Country of origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S.A
AudioControl, Making Good Stereo Sound Better, Performance Match, The Epicenter,
EQL, EQX, FOUR.1
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, and Para-BASS are all trademarks of Electronic Engineering and
Manufacturing, Inc.
This literature was conceived, designed, and written on a bleak, windy, and dreary rain-
drenched day at our home in the Pacific Northwest Rainforest. The coffee was hot.
