Top 10 Best Car Audio Preamplifiers
for June 2021

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1
9.9
SCORE
BOSS BX55 2/3 Way Car Audio Electronic Crossover Bass with Remote Control and Stereo Equalizer Preamp Amplifier

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

by BOSS AUDIO
What We like

CHASSIS TYPE: Half-din

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Product Features

  • 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):0.05 %
  • PREAMP EQUALIZER: BOSS AVA1210 7-Band Preamp Equalizer with Subwoofer Output; Bands: 7; Adjustable Eq Bands: Front 125hz, 500hz, 3.5khz, 12khz; Rear: 50hz, 600hz, 6.3khz; Type: Pre-amp
  • 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
  • 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

Preamp equalizer: boss ava1210 7-band preamp equalizer with subwoofer output; bands: 7; adjustable eq bands: front 125hz, 500hz, 3.5khz, 12khz; rear: 50hz, 600hz, 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 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 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):0.05 %

2
9.9
SCORE
FX AUDIO Tube Preamp TUBE-06 HiFi Home Audio Stereo HiFi 6N3 Vacuum Tube Preamplifier for Home Theater Audio Player System CM6653 with Sound Card with Bass Treble Control RCA/USB/AUX Input (Silver)

FX AUDIO Tube Preamp TUBE-06 HiFi Home Audio Stereo HiFi 6N3 Vacuum Tube Preamplifier for Home Theater Audio Player System CM6653 with Sound Card with Bass Treble Control RCA/USB/AUX Input (Silver)

by FX AUDIO
What We like

Low-Noise & Low Distortion DesignThe preamplifier home audio features aluminum alloy oxidation drawing process shell and the black immersion gold PCB board. Isolation sheet is added between audio and power supply which will reduce much noise interference and keep clear sound quality. The use of coupled audio capacitors can greatly improve the audio signal path

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Product Features

  • Input and OutputThis pre amplifiers for home stereo has three inputs - RCA, AUX, PC-USB to support more audio devices. We add free USB cable and RCA cable in the package. The output interface can be connected to power amplifiers and passive speakers, or directly connected to active speakers. (Not a amplifier, not for car audio speakers, not a phono preamp and can't work with a turntable, only used for home audio systems)
  • Replaceable 6N3 TubesThis stereo preamp can filter out the digital sound of common audio sources. This preamp uses 6N3 vacuum tubes. The tubes has softer listening experience, with Hi-Fi sound effect and high performance. 6N3 tubes can be replaced by GE5670, WE396A, 6H3, 6A8Q, 2C51, ECC42, etc to suit audiophiles needs
  • Adjustable Bass and TrebleThis pre amp has independent bass and treble volume control. You can adjust the sound effects according to your preference to achieve the most suitable sound effect for your home audio system. Turn left to decrease the volume, and turn right to increase the volume

Input and outputthis pre amplifiers for home stereo has three inputs - rca, aux, pc-usb to support more audio devices. we add free usb cable and rca cable in the package. the output interface can be connected to power amplifiers and passive speakers, or directly connected to active speakers. (not a amplifier, not for car audio speakers, not a phono preamp and can't work with a turntable, only used for home audio systems) Replaceable 6n3 tubesthis stereo preamp can filter out the digital sound of common audio sources. this preamp uses 6n3 vacuum tubes. the tubes has softer listening experience, with hi-fi sound effect and high performance. 6n3 tubes can be replaced by ge5670, we396a, 6h3, 6a8q, 2c51, ecc42, etc to suit audiophiles needs Adjustable bass and treblethis pre amp has independent bass and treble volume control. you can adjust the sound effects according to your preference to achieve the most suitable sound effect for your home audio system. turn left to decrease the volume, and turn right to increase the volume

3
9.4
SCORE
Audiopipe EQ-709X 7 Band 9.V Half DIN Graphic Car Audio Equalizer EQ (2 Pack)

Audiopipe EQ-709X 7 Band 9.V Half DIN Graphic Car Audio Equalizer EQ (2 Pack)

by AudioPipe
What We like

Individual left and right sensitivity controls for auxiliary input

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Product Features

  • Active gain pre-amplifiers with adjustable input sensitivity
  • Adjustable subwoofer frequency: 60Hz/90Hz
  • Universal half-DIN chassis for ease of installation
  • Nickel-plated locking adjustable knobs

Nickel-plated locking adjustable knobs Adjustable subwoofer frequency: 60hz/90hz Active gain pre-amplifiers with adjustable input sensitivity Universal half-din chassis for ease of installation

4
9.1
SCORE
Powerbass Car Audio Eq Sound Processor 9-band Equalizer Pre-amp

Powerbass Car Audio Eq Sound Processor 9-band Equalizer Pre-amp

by Powerbass
What We like

Car Audio Sound Processor 9 Band Premium Equalizer

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Product Features

  • 3 Low Level RCA Outputs: Sub, Front and Rear
  • Frequency Response: 20HZ-40KHz
  • Dimensions: 7 x 4" x 1"
  • 2 Low Level RCA Inputs: Rear Aux and Rear CD

2 low level rca inputs: rear aux and rear cd Dimensions: 7 x 4" x 1" Frequency response: 20hz-40khz 3 low level rca outputs: sub, front and rear

5
8.9
SCORE
Boss Audio Systems Bx45 2 3 Way Pre-amp Car Electronic Crossover - Variable High Pass Filter 40 Hz - 8 Khz Selectable Crossover Slopes, Selectable Phase Maximum Input Voltage 4.5 Volts, SILVER AND BLACK

Boss Audio Systems Bx45 2 3 Way Pre-amp Car Electronic Crossover

Variable High Pass Filter 40 Hz, 8 Khz Selectable Crossover Slopes, Selectable Phase Maximum Input Voltage 4.5 Volts, SILVER AND BLACK

by BOSS AUDIO
What We like

DESIGNED TO IMPRESS: A thoughtful layout and clean design that gives you the user experience you've been wanting. Provides the perfect frequency distribution throughout your system to ensure the clarity and peak efficiency for your music arrangement

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Product Features

  • 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. Subwoofer crossover is a low-pass filter designed to limit the subwoofer channel to low frequencies
  • VARIABLE BASS BOOST 0 12 DB: By connecting the BX45 to your amplifier, you will have total control of exactly how you want your bass to sound, as well as your mid-level and high-level frequencies, giving you the pristine listening experience
  • PARALLEL INPUT: If you set the subwoofer input mode selector switch to the ON position, front stereo input will be delivered to the crossover. 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. Has been designed and built to deliver excellent sound quality and long lasting high performance. Gives massive improvements to clarity/ distortion
  • Media Type: Cd+Rw

Media type: cd+rw Variable bass boost 0 12 db: by connecting the bx45 to your amplifier, you will have total control of exactly how you want your bass to sound, as well as your mid-level and high-level frequencies, giving you the pristine listening experience Parallel input: if you set the subwoofer input mode selector switch to the on position, front stereo input will be delivered to the crossover. you can create a very sophisticated 3-way audio system with only a pair of stereo input from your head unit 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. subwoofer crossover is a low-pass filter designed to limit the subwoofer channel to low frequencies Variable crossover: variable subwoofer filter 32 hz 250 hz, variable high pass filter 40 hz 8 khz. has been designed and built to deliver excellent sound quality and long lasting high performance. gives massive improvements to clarity/ distortion

6
8.6
SCORE
Planet Audio Half-DIN, Band Car Equalizer, Subwoofer Output with Adjustable Filter, Fixed Bands (PEQ10)

Planet Audio Half-DIN

Band Car Equalizer, Subwoofer Output with Adjustable Filter, Fixed Bands (PEQ10)

by Planet Audio
What We like

Dimensions: Depth 7 x Width 1.4 x Height 5.1

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Product Features

  • Input Sensitivity Adjustment, PWM (Pulse Width Modulated) Power Supply
  • Master Volume Control, Fader Control
  • 4 Band Adjustment, Subwoofer Output with Adjustable Filter
  • Four fixed bands (high, mid, low and sub) with 12dB of boost / cut adjustment. The adjustable subwoofer crossover and gain control add flexibility to your bottom end
  • S / N: 85dB, Night Illumination

Master volume control, fader control Four fixed bands (high, mid, low and sub) with 12db of boost / cut adjustment. the adjustable subwoofer crossover and gain control add flexibility to your bottom end Subwoofer level control, auxiliary input S / n: 85db, night illumination 4 band adjustment, subwoofer output with adjustable filter Input sensitivity adjustment, pwm (pulse width modulated) power supply

7
7.9
SCORE
BOSS Audio Systems BX55 2 3 Way Pre-Amp Car Electronic Crossover with Remote Subwoofer Control

BOSS Audio Systems BX55 2 3 Way Pre-Amp Car Electronic Crossover with Remote Subwoofer Control

by BOSS AUDIO
What We like

Dimensions: Depth 6.5 x Width 8.8 x Height 1.5

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Product Features

  • Maximum Input Voltage 4.5 Volts, Maximum Output Voltage 9 Volts, S / N Ratio 110 dB, THD 0.010
  • Variable Bass Boost 0 18 dB, Variable Bass Boost Frequency 25 Hz 250 Hz
  • Variable Subwoofer Filter 40 Hz 4200 Hz, Variable High Pass Filter 65 Hz 4.5 kHz
  • Crossover Slope 12 dB / Octave, Variable Subwoofer Phase 0 180 Degrees
  • Front High Pass Filter 65Hz to 4.5 kHz, Rear High Pass Filter 65Hz to 4.5 kHz

Front / rear / sub input, front / rear / sub outputs, remote subwoofer control Variable subwoofer filter 40 hz 4200 hz, variable high pass filter 65 hz 4.5 khz Front high pass filter 65hz to 4.5 khz, rear high pass filter 65hz to 4.5 khz Variable bass boost 0 18 db, variable bass boost frequency 25 hz 250 hz Crossover slope 12 db / octave, variable subwoofer phase 0 180 degrees Maximum input voltage 4.5 volts, maximum output voltage 9 volts, s / n ratio 110 db, thd 0.010

8
7.5
SCORE
BOSS Audio Systems BX35 Electronic Car Crossover - 3 Way, Pre-Amp, Fine Tune Your High-Mid-Low Range Speaker Frequencies

BOSS Audio Systems BX35 Electronic Car Crossover

3 Way, Pre-Amp, Fine Tune Your High-Mid-Low Range Speaker Frequencies

by BOSS AUDIO
What We like

Dimensions: Depth 8 x Width 7.4 x Height 1.5

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Product Features

  • Crossover Slope 12 dB / Octave, Variable Subwoofer Phase 0 180 Degrees
  • Variable Subwoofer Filter 40 Hz 250 Hz, Variable High Pass Filter 45 Hz 5 kHz
  • Maximum Input Voltage 4.5 Volts, Maximum Output Voltage 9 Volts, S / N Ratio 95 dB, THD 0.010
  • Front High Pass Filter 65 Hz to 4.5 kHz, Rear High Pass Filter 45 Hz to 1.6 kHz
  • Variable Bass Boost 0 18 dB, Variable Bass Boost Frequency 25 Hz 250 Hz

Variable bass boost 0 18 db, variable bass boost frequency 25 hz 250 hz Front / rear / sub input, front / rear / sub outputs Maximum input voltage 4.5 volts, maximum output voltage 9 volts, s / n ratio 95 db, thd 0.010 Front high pass filter 65 hz to 4.5 khz, rear high pass filter 45 hz to 1.6 khz Crossover slope 12 db / octave, variable subwoofer phase 0 180 degrees Variable subwoofer filter 40 hz 250 hz, variable high pass filter 45 hz 5 khz

9
7.5
SCORE
Rockville R7EQ 1/2 Din 7 Band Car Audio Equalizer EQ w/Front, Rear + Sub Output

Rockville R7EQ 1/2 Din 7 Band Car Audio Equalizer EQ w/Front

Rear + Sub Output

by Rockville
What We like

Features of R7EQ: Rockville R7EQ 1/2 Din 7 Band Car Audio Equalizer EQ w/ Front, Rear + Sub Output, Includes mounting brackets and screws for easy installation, 7 adjustable bands of equalization (50Hz,125Hz,315Hz,750Hz,2.2KHz,6KHz and 12KHz), Each band is adjustable from -18dB to +18dB, Adjustable subwoofer frequency from 40Hz to 250Hz

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Product Features

  • Strong metal chassis with high quality rotary knobs for all controls, Amazing quality with low distortion (Built with top quality components), Frequency response: 20Hz TO 20KHz +/- 1dB, S/N Ratio: 101 dB, Crossover Roll-Off: 12dB per octave, Input impedance: 10K
  • Built in crossover, Subwoofer level controls and subwoofer frequency cutoff controls (40-250 Hz), Built in 7 volt line driver, Blue LED lights on each rotary knob, Front, rear, and sub preamp outputs, Aux input with gain knob to adjust aux volume
  • Input sensitivity: 200mv per channel >7V, THD: 0.01%, Input: 12V, Output: 15V, Power requirement: 11-16V DC, Unit dimensions in inches: 7.04 x 4.72 1.1

Input sensitivity: 200mv per channel >7v, thd: 0.01%, input: 12v, output: 15v, power requirement: 11-16v dc, unit dimensions in inches: 7.04 x 4.72 1.1 Built in crossover, subwoofer level controls and subwoofer frequency cutoff controls (40-250 hz), built in 7 volt line driver, blue led lights on each rotary knob, front, rear, and sub preamp outputs, aux input with gain knob to adjust aux volume Strong metal chassis with high quality rotary knobs for all controls, amazing quality with low distortion (built with top quality components), frequency response: 20hz to 20khz +/- 1db, s/n ratio: 101 db, crossover roll-off: 12db per octave, input impedance: 10k

10
7.5
SCORE
Massive Audio EQ-7X Car Equalizer with 7 Band Graphic Equalizer - Aux inputs - 7V RCA Outputs - 8V Line Driver - 12dB Crossover

Massive Audio EQ-7X Car Equalizer with 7 Band Graphic Equalizer

Aux inputs, 7V RCA Outputs, 8V Line Driver, 12dB Crossover

by Massive Audio -- DROPSHIP
What We like

EASY TO INSTALL. LONG LASTING. | The Massive Audio EQ7X Car Audio Equalizer is easy to install and produces amazing results for years! The EQ7 is the perfect device to enhance your Car Audio's performance, and the Best Car Equalizer in its class! Dimensions: 7" (W) x 1" (H) x 4-1/8" (D)

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Product Features

  • MORE TUNING CONTROL | With Stellar features such as: Adjustable Master Volume Level, Adjustable Subwoofer Level, 2-Channel RCA Aux Input and Adjustable Gain, 7-Band, 1/2 DIN, 8V Line Driver, Auxiliary inputs, 6-Channel / 7V RCA Outputs, you can take full control on how you like your music to sound Clearer, Better, Perfect!
  • MASSIVE AUDIO QUALITY | Since 1999, Massive Audio has been an industry leader in high performance audio products. Massive Audio laid its roots in high quality audio reproduction through in-house engineering and a dedication to customers.
  • TOP RATED CAR AUDIO EQUALIZER | The EQ7X Massive Audio Car Stereo Equalizer is a 7 band graphic equalizer that will correct peaks and dips in sound characteristics associated with most vehicles' interior. This Graphic Equalizer also features a switch to change the LED color from Red to Blue depending on the interior of the vehicle.
  • SAY GOODBYE TO WHITE NOISE | Don't waste your time or money on cheap quality Car Audio Equalizers that produce a lot of background noise. With Selectable 12dB Low-Pass Crossover (60Hz or 90Hz), and Gold Plated Terminals, you're sure to get great crossovers and perfect sound quality.

Say goodbye to white noise | don't waste your time or money on cheap quality car audio equalizers that produce a lot of background noise. with selectable 12db low-pass crossover (60hz or 90hz), and gold plated terminals, you're sure to get great crossovers and perfect sound quality. More tuning control | with stellar features such as: adjustable master volume level, adjustable subwoofer level, 2-channel rca aux input and adjustable gain, 7-band, 1/2 din, 8v line driver, auxiliary inputs, 6-channel / 7v rca outputs, you can take full control on how you like your music to sound clearer, better, perfect! Massive audio quality | since 1999, massive audio has been an industry leader in high performance audio products. massive audio laid its roots in high quality audio reproduction through in-house engineering and a dedication to customers. Top rated car audio equalizer | the eq7x massive audio car stereo equalizer is a 7 band graphic equalizer that will correct peaks and dips in sound characteristics associated with most vehicles' interior. this graphic equalizer also features a switch to change the led color from red to blue depending on the interior of the vehicle.

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