Top 10 Preamp for Car – Car Amplifier Equalizers

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1. BOSS Audio Systems


BOSS BX55 2/3 Way Car Audio Electronic Crossover Bass with Remote Control and Stereo Equalizer Preamp Amplifier

BOSS Audio Systems #ad - Specifications: inputs: dual 2 ch source; outputs: front, rear & sub; subwoofer filter: switchable 32 hz or 128 khz; subwoofer level control; fader control; gain: ±18 Db; Maximum Input Voltage: 15 V; Maximum Output Voltage: 8 V; Frequency Response: 10 Hz To 15 Khz; S/n Ratio > a-weighted: 110 Db; Channel Separation:20 Db; T.

H. D. Total harmonic Distortion:005 %. Specifications: subwoofer: 45hz 4. 2khz; low pass bandpass: 300hz 4. 6khz; rear high pass : 65hz 4. 5khz; front high pass : 65hz 4. 5khz; variable bass boost, 0 +18db; slope rate: 12 db/octave; signal to noise rATIO: >110DB. Preamp equalizer: boss ava1210 7-band preamp equalizer with subwoofer output; bands: 7; Adjustable Eq Bands: Front 125hz, 600hz, 500hz, 3.5

5khz, 12khz; rear: 50hz, 6. 3khz; type: Pre-amp. Electronic crossover: boss bx55 2/3 way electronic crossover; 2/3 way electronic crossover; inputs: front, rear and subwoofer; outputs: front, REAR AND SUBWOOFER; SELECTABLE CROSSOVER FREQUENCIES. Chassis type: Half-din.
BrandBOSS Audio Systems #ad
ManufacturerBOSS AUDIO #ad
Height0 Inches
Length0 Inches
Width0 Inches
Part NumberBX55+AVA1210

2. BOSS Audio Systems


BOSS Audio Systems AVA1210 7 Band Pre-Amp Car Equalizer with Gold-Plated Front Rear and Subwoofer Outputs

BOSS Audio Systems #ad - Rear adjustable eq bands frequencies: 50 Hz, 600 Hz, 6. 3 kHz. 7 bands. Fader Control. Dimensions: depth 4. 6” x width 7” x Height 1”.

Subwoofer Level Control. Inputs: dual 2 channel source. Signal to noise ratio > 110 db, channel Separation 20 dB, Total Harmonic Distortion 0050 Front adjustable eq band frequencies: 125 Hz, 3. 5 khz, 500 hz, 12 kHz. Outputs: front, Rear & Sub. Switchable subwoofer filter 32 hz – 128 Hz, Frequency Response 10 Hz – 15 kHz. Gain + / - 18 db, maximum input voltage 15 Volts, Maximum Output Voltage 8 Volts. Subwoofer level control; Preamp/amplified, Preamp. 1 year Warranty. Night illumination. Rca input; Subwoofer output.
BrandBOSS Audio Systems #ad
ManufacturerBOSS AUDIO #ad
Height1 Inches
Length4.6 Inches
Weight3 Pounds
Width7 Inches
Part NumberAVA1210

3. BOSS Audio Systems


Variable High Pass Filter 40 Hz, 8 Khz Selectable Crossover Slopes, SILVER AND BLACK, Selectable Phase Maximum Input Voltage 4.5 Volts, Boss Audio Systems Bx45 2 3 Way Pre-amp Car Electronic Crossover

BOSS Audio Systems #ad - Parallel input: if you set the subwoofer input mode selector switch to the ON position, front stereo input will be delivered to the crossover. Crossover slopes: 3-way electronic is a high-fidelity signal processor that allows you to divide a stereo audio input signal into 3 separate channels.

Variable bass boost 0 – 12 db: by connecting the bx45 to your amplifier, as well as your mid-level and high-level frequencies, you will have total control of exactly how you want your bass to sound, giving you the pristine listening experience. Subwoofer crossover is a low-pass filter designed to limit the subwoofer channel to low frequencies. Has been designed and built to deliver excellent sound quality and long lasting high performance. Provides the perfect frequency distribution throughout your system to ensure the clarity and peak efficiency for your music arrangement.

Gives massive improvements to clarity/ distortion. Media type: Cd+Rw. You can create a very sophisticated 3-way audio system with only a pair of stereo input from your head unit. Variable crossover: variable subwoofer filter 32 hz – 250 hz, variable High Pass Filter 40 Hz – 8 kHz. Designed to impress: a thoughtful layout and clean design that gives you the user experience you've been wanting.
BrandBOSS Audio Systems #ad
ManufacturerBOSS AUDIO #ad
Height1.5 Inches
Length7.1 Inches
Width7.4 Inches
Part NumberBX45

4. PowerBass


Powerbass AEQ-4XOA 1/2 Din 4 Band Preamp/Equalizer

PowerBass #ad - It is manufactured from the highest quality materials for maximum reliability. Is designed by industry experts for the best factory fit and finish. Manufactured in China.
BrandPowerBass #ad
ManufacturerPowerbass #ad
Height7.7 Inches
Length9 Inches
Width2 Inches
Part NumberAEQ-4XOA

5. Audiobank


Audiobank EQ7 1/2 Din 7 Band Car Audio Equalizer EQ w/Front, Rear/Frequency Adjustable /3 RCA Input for Portable Devices + Subwoofer Output Built-in 43-120Hz, 60-200Hz

Audiobank #ad - Seven equalization bands each frequency is adjustable from -12 to + 12dB. Subwoofer outpsubwoofer output uses a built-in 43-120Hz, 60-200Hzut uses a built-in 43-120Hz, 60-200Hz. Separate controls for master volume, subwoofer volume and selection of main or auxiliary inputs. An auxiliary stereo rca input for use with portable devices, such as an MP3 Player or DVD player. Three stereo rca outputs to drive front, rear, and subwoofer audio amplifiers.
BrandAudiobank #ad
ManufacturerAudiobank #ad

6. Alpine


Alpine Single DIN Car Stereo Receiver

Alpine #ad - Features: cd receiver with am/fm rds tuner, wma, plays usb drives loaded with MP3, and FLAC music files See Details tab for model compatibility, and 1-line high-contrast LCD display with white illumination and red buttons.

Smartphone features: built-in Android AOA control and charging of select Android devices using the USB connection. Audio features: 3-band parametric equalizer with 11 preset eq settings, Premium 24-bit digital-to-analog converter DAC, Bass Engine SQ button with choice of five bass profiles, and High and low-pass filters with subwoofer level control. Other features and specs: compatible with most factory steering wheel audio controls adapter required, Built-in CTA-2006 compliant amplifier 18 watts RMS/50 peak x 4 channels, and optional remote control.

Expandability: inputs: front usb port no iphone control, front auxiliary input, Outputs: 4-channel preamp outputs 2-volt front and subwoofer, and Compatible with KTP-445 Head Unit Power Pack sold separately.
BrandAlpine #ad
ManufacturerAlpine #ad
Height5 Inches
Length11 Inches
Width11 Inches
Part NumberCDE-170

7. Gravity


Gravity EQ15 1/2 Din Five Equalization Bands Car Audio Equalizer EQ Front, Rear +Master Volume Control with up to 9 Volts RMS of Output/Three Stereo RCA Output

Gravity #ad - Master volume control with up to 9 volts RMS of output. Active gain Pre-amp with adjustable input sensitivity. Three stereo rcA output to drive front, rear, subwoofer. Built-in input aux / DVD Select Switch. Five equalization bands 50hz, 900Hz, 2. 2khz, 125hz, 16kHz.
BrandGravity #ad
ManufacturerGravity #ad
Height10 Inches
Length4 Inches
Width7 Inches

8. Rockville


Rockville R7EQ 1/2 Din 7 Band Car Audio Equalizer EQ w/Front, Rear + Sub Output

Rockville #ad - What's in the box: equalizer, Bracket, Owner manual, Screws, Warranty card. Input sensitivity: 200mv per channel >7v, thd: 001%, output: 15v, power requirement: 11-16V DC, input: 12v, Unit dimensions in inches: 7.04” x 4.

72” 1. 1”. Strong metal chassis with high quality rotary knobs for all controls, s/n ratio: 101 dB, crossover roll-off: 12dB per octave, Frequency response: 20Hz TO 20KHz +/- 1dB, Amazing quality with low distortion Built with top quality components, Input impedance: 10K. Features of r7eq: rockville r7eq 1/2 din 7 band car audio equalizer eq w/ front, 2. 2khz, includes mounting brackets and screws for easy installation, 6khz and 12khz, 7 adjustable bands of equalization 50hz, 125Hz, Rear + Sub Output, 315Hz, Each band is adjustable from -18dB to +18dB, 750hz, Adjustable subwoofer frequency from 40Hz to 250Hz.

Built in crossover, blue led lights on each rotary knob, rear, built in 7 volt line driver, Subwoofer level controls and subwoofer frequency cutoff controls 40-250 Hz, front, and sub preamp outputs, Aux input with gain knob to adjust aux volume.
BrandRockville #ad
ManufacturerRockville #ad
Height8.46 Inches
Length1.57 Inches
Width7.83 Inches
Part NumberR7EQ
Warranty1 YEAR

9. PowerBass



PowerBass #ad - Pre_amp line driver: boosts the output voltage of your Radio head unit and increases it up to 20dB 10-13volts peak and then deliver it to the amplifier inputs. Auxillary input selector: the source switch on the front of the equalizer allows the user to switch back and forth between two sources.

Night illumination: when the EQ is powered-on the control knobs are back lit with blue illumination for easier adjustment at night. Master volume control: this one knob allows the user to raise the volume on your source units to their maximum level, eliminating the need to adjust multiple controls.

If you are thinking about adding a video system, DVD player, or extra CD player this feature makes hook-up easy and functional. Stereo premium equalization w/ variable subwoofer control: combine these controls for maximum flexibility with a subwoofer crossover to turn your dashboard into a mini-mixing board, giving you ultimate bass response.
BrandPowerBass #ad
Height2.3 Inches
Length9.1 Inches
Width7.8 Inches
Part Number4332957998

10. Skar Audio


Skar Audio SKA7EQ 7 Band 1/2 DIN Pre-Amp Car Audio Graphic Equalizer with Aux Input and High Voltage RCA Outputs

Skar Audio #ad - Take full control over your car audio system with this eq | Signal-to-Noise Ratio: 100 dB, Low Pass Frequency Switch: 60 Hz / 120 Hz. High voltage max output voltage - 7v gold plated pre-amp RCA Outputs - Front, Rear, and Subwoofer with Variable Subwoofer Level Control on Front of EQ.

2 khz, 6 khz, 125 hz, 16 khz with Built-in Fader Control. Included components: Installation Brackets and Hardware. Featuring 2 balanced & selectable rca inputs - main and Auxiliary Aux w/ Variable Gain Control | THD: 07 fully adjustable -12 db to +12 db eq bands 50 hz, 750 hz, 320 hz, 2.6 channel 7-band high performance Car Audio 1/2 DIN Pre-Amp Electronic Equalizer. 005%. Includes installation mounting Brackets and Hardware | 20 dB Headroom Eliminated Signal Overload.
BrandSkar Audio #ad
ManufacturerSkar Audio #ad
Height1.75 Inches
Length9 Inches
Width6.5 Inches
Part NumberSKA7EQ
Warranty2 year limited warranty