Audio Control THREE.1 In-Dash Equalizer THREE.1 !   4 Band stereo graphic Equalizer Subwoofer level control Subwoofer level control 13 volt peak line driver Switchable backlight illumination color (green or amber) Balanced differential inputs and outputs for maximum noise rejection 4 Channel 2-way 24 db/octave electronic crossover High headroom PMW switching power supply Master volume control Front / rear fader One-half DIN size chassis Black chassis only

Audio Control FOUR.1 In-Dash Equalizer FOUR.1 !   5 band stereo graphic equalizer with para-bass Switchable stereo inputs 13 volt peak line driver Switchable backlight illumination color (green or amber) Auxiliary inputs Balanced differential inputs and outputs for maximum noise rejection High headroom pwm switching power supply Master volume control Front / rear fader One-half din size chassis Black chassis only

Audio Control EQS Trunk Mount Equalizer EQS !   Six Channel Operation Works With Newer Head units Dual-bandwidth Equalization Auto-mode Configuration Simplifies Installation Programmable Frequency Match (PFM) Subsonic Filter Line and Speaker Level Inputs Balanced Inputs For Superior Noise Rejection Input and Output Level Matching Controls

Audio Control EQX Trunk Mount Equalizer EQX !   Dual-bandwidth equalization with crossover 6 band, 1/2 octave bass Eqalizer 7 band, 1 octave equalizer Two-way 24db/octave linkwitz-riley crossover Programmable frequency match (pfm) subsonic filter Line and speaker level inputs Balanced inputs Input and output level matching controls Frequency Response: 10 Hz to 20 kHz + 1 dB Total Harmonic Distortion (THD): 0.005% Signal to Noise Ratio (SNR): 110 dB at full output Maximum Output Level: 9.5 volts rms Input Gain: ± 18 dB Crossover Slope: 24 dB per octave Crossover Type: 2-way Linkwitz-Riley Programmable Crossover Frequency: 50 to 6500 Hz PFM Filter Slope: 18 dB per octave PFM Frequency: Programmable 15 to 100 Hz Power Supply: Transformer-isolated switch mode Fuse Rating: 2 amps Size: 1.25"h x 8.9" w x 6.9" d Balanced Input Ground Isolation Jumpers

Audio Control EQL Trunk Mount Equalizer EQL !   Dual-bandwidth Equalization 6 band, 1/2 octave bass Equalizer 7 band, 1 octave Equalizer Programmable frequency match (PFM) subsonic filter Line and speaker level inputs Balanced inputs Input and output level matching controls Frequency Response: 10 Hz to 20 kHz ± 1 dB Total Harmonic Distortion (THD): 0.005% Signal to Noise Ratio (SNR): 110 dB at full output Maximum Output Level: 7.5 volts rms Input Gain: ± 18 dB PFM Filter Slope: 18 dB per octave PFM Frequency: Programmable 15 to 100 Hz Factory Shipped @ 33Hz Power Supply: Variable isolation. Transformer switching supply Fuse Rating: 2 amps Size: 1.25"H x 8.9"W x 6.9"D Balanced Input Ground Isolation Jumpers