Specifications

In-Dash
tm
FOUR.1i
Owner’s Enjoyment Manual
17
FOUR.1i 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.1i, 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.