15 Bands, 8 Presets
The Pioneer DEQ-7600 takes the same digital technology that makes CDs sound so terrific, and uses it to broaden the possibilities of your car stereo. Not only will you gain the advantages of an on-board equalizer, you'll also be able to choose among user-adjustable and preset soundfields to actually recreate different acoustic environments, right in your vehicle.

7 Bands, 10 Hz - 50000 Hz, 105 dB
The EQS746 is a 7-band graphic equalizer used to make frequency adjustments from 50 Hz–16 kHz in seven frequency bands. The EQS746 can make adjustments to frequency peaks and dips caused by interior size, seat shape and material, or by other vehicle factors. Moreover, you can tune the level to boost or cut specific frequency points and create your own preferred sound. With the auxiliary input, you can equalize both the main audio source and another sound application such as a portable DVD player, TV tuner, or MP3 player. The 7-volt output level gives you a high signal-to-noise ratio to drive your audio system to full power with minimum noise. The subwoofer output feature a dedicated level control and a switchable 60 or 90 Hz low-pass crossover.

3 Bands, 10 Presets
Now, THIS is fine tuning. The DEQ-9200 DSP audio processor is a powerful tool for customizing how you want music to sound in your vehicle. It features a DSP audio processor with Auto EQ for a huge variety of sound preferences, and Legato Link conversion for the purest sound possible. A multi-color EL display, extra-capacity battery, and detachable face security (with case provided) are additional features.

7 Bands, 20 Hz - 20000 Hz, 55 dB
10000-Ohm high impedance RCA input. 100-Ohm low impedance input. LED on all slide controls. Computerized spectrum power display.

5 Bands, 10 Hz - 60000 Hz, 100 dB
The Kenwood KGC-4042A has 5 Equalizer Bands. Signal to Noise Ratio: 100 Decibels

10 Bands, 30 Hz - 30000 Hz
Half-Din Design 1' Tall 10 Band Graphic Equalizer 12dB Boost/Cut Per Band Power On/Off Switch Dual Channel Multi-Colored Power Level Indicators 100 Watts x 2 Maximum Output 2/4 Speaker Hook-up Fader Control Common or Floating Ground Frequency Response:30-30kHz Output Impedance:4-8 Ohm Automatic Overload Sensing Circuit For 12V DC Negative Ground Systems

6 Bands, 20 Hz - 20000000 Hz, 85 dB
The Pyramid 401EP has 6 Equalizer Bands. Signal to Noise Ratio: 85 Decibels Pyramid Car Audio prides itself as being the most affordable solution to car audio.

7 Bands, 20 Hz - 20000 Hz
Full Din Size 7 Band Graphic Equalizer 12dB Boost/Cut Power On/Off and Bypass Switch Multicolor Power Level Spectrum Analyzer 150 Watts x 2 Maximum Output 2 or 4 Speaker Hook up Sliding Volume Controls Rotary Fader Controls Accepts High or Low Level Inputs Floating or Common Ground Compatible Frequency Response:20-20kHz Output Impedance:4 Ohms Front Panel CD Input Jacks For 12V DC Negative Ground System

7 Bands, 30 Hz - 30000 Hz
Ultra Slim Design 7 Band Graphic Equalizer 12dB Boost/Cut per Band Power On/Off Switch Dual Channel Multi-Colored Power Level Indicators 100 Watts x 2 Maximum Output 2/4 Speaker Hook-up Fader Control Floating or Common Ground High Level Input Frequency Resp.:30Hz -30kHz Output Impedance:4-8 Ohms Automatic Overload Sensing Circuit For 12V DC Negative Ground Systems

7 Bands, 5 Presets, 15 Hz - 30000 Hz, 90 dB
1/2 DIN mounting size 7 Band graphic equalizer 100 watts x 2 max output 2/4 Speaker hook-up 2 Channel RCA inputs Volume/fader control Preamp subwoofer output 18dB gain for subwoofer LED display S/n ratio: >90dB