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AudioControl EQL Trunk-mount 2-channel equalizer with level matching (White)

Item # 161EQLW

AudioControl builds the EQL for one reason — to make your system sound better.

AudioControl builds the EQL for one reason — to make your system sound better.

4 questions - 5 answers

Item # 161EQLW

About the AudioControl EQL

Charlie Pastorfield

13 bands of adjustment

AudioControl builds the EQL for one reason — to make your system sound better. This versatile 2-channel equalizer features 13 bands of adjustment for sonic fine tuning, along with level controls that allow you to match any receiver to any amplifier. And speaker-level inputs allow you to connect the EQL to just about any car stereo, even to factory amps up to 400 watts.

13 bands of adjustment

AudioControl builds the EQL for one reason — to make your system sound better. This versatile 2-channel equalizer features 13 bands of adjustment for sonic fine tuning, along with level controls that allow you to match any receiver to any amplifier. And speaker-level inputs allow you to connect the EQL to just about any car stereo, even to factory amps up to 400 watts.

Equalization

Most car audio problems occur in the bass frequencies, so the EQL gives you six bands of equalization between 31.5 and 180 Hz, along with a rolloff filter that keeps ultra-low bass out of your subwoofer system. You also get seven bands of equalization at octave intervals from 250 Hz all the way up to 16,000 Hz.

Level matching for max performance

Once connected, the EQL makes it easy — turn up the input gain knobs until the indicator light flickers, adjust the output knobs until the light indicates the proper output, and you're all set. Balanced inputs reject noise caused by your vehicle's electrical system.

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Product highlights:

  • dual 13-band equalizers with level matching controls
  • white steel chassis with gold-plated RCA jacks
  • top-mounted controls for easy adjustment
  • 2-channel preamp inputs and outputs
  • speaker-level inputs
  • balanced inputs eliminate noise
  • 33 Hz subsonic filter eliminates extreme low bass (rolloff point can be adjusted with optional module)
  • EQ points: 31.5, 45, 63, 90, 125, 180, 250 500, 1000, 2000, 4000, 8000, 16000 Hz
  • frequency response: 10 to 20,000 Hz
  • signal-to-noise ratio: 110 dB at full output
  • maximum output level: 7.5 volts
  • fuse rating: 2 amps
  • size: 6-15/16"H x 8-15/16"W x 1-1/4"D
  • weight: 3 pounds
  • warranty: 5 years
  • MFR # 8410241

What's in the box:

  • Pre-amp Equalizer (white)
  • Owner's manual
  • QC checklist
  • Product registration card

Customer reviews for AudioControl EQL

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More details on the AudioControl EQL

Russ B.

Product Research

Features

Dual Bandwidth Equalization: A total of 13 bands are available over two bandwidths, each band has separate dials for the left and right channels:

  • Full Octave EQ: A 7-band full octave equalizer controls frequencies above the bass range; the center frequencies are 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, and 16 kHz. The rotary knobs adjust the signal +/-12 dB. There's a notch at each knob's center position so it's easy to return to the flat setting.
  • Half Octave EQ: A 6-band 1/2 octave equalizer controls the bass frequency range; the center frequencies are 31.5 Hz, 45 Hz, 63 Hz, 90 Hz, 125 kHz, and 180 kHz. The rotary knobs adjust the signal +/-12 dB. There's a notch at each knob's center position so it's easy to return to the flat setting.

Input Gain: The input gains for the left and right channels are set independently. The range is adjustable +/-18 dB to match the source output to the EQ input.

Output Level: The adjustable output levels allow you to increase the head unit's line voltage to the top of your amp's input range; up to 9.5 volts RMS/13 volts peak.

Balanced Inputs: Using the balanced differential input circuit cancels noise picked up in the transmission line between the EQL and the source unit.

Speaker Level Inputs: The speaker level inputs are compatible with most factory installed radios.

Terminal Blocks: The power/ground/remote terminal and the speaker level input terminals are removable; the wiring is attached to the block, then the block is plugged into the EQL. The terminal block will accommodate wire up to 12 gauge.

Subsonic Filter: The subsonic filter crossover point is 33 Hz and the crossover slope is 18 dB/octave. The crossover point is governed by a replaceable chip, so it can be modified.

Bypass: The bypass switch allows you to instantly bypass all the EQ adjustments.

Inputs and Outputs:

  • Line Input: stereo RCA, balanced
  • Speaker Input: removable stereo terminal block
  • Line Output: stereo RCA
  • Power Input: removable terminal block

Specifications:

  • Maximum Output: 9.5 volts RMS/13 volts peak
  • Frequency response: 10 Hz-20 kHz; ±1 dB
  • THD: 0.005%
  • S/N Ratio: 110dB

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Customer Q&A

4 questions already asked

Q
Can I use this as a pre amp input to my subwoofer amp? I am not sure if I can use a dsp to power just my sub separately from my door speakers which have their own 4 channel dsp. Is this meant for door speakers only or can it do a subwoofer
alexstammel  Apr 12, 2023
1 answer
A
Technically this could be used before a subwoofer amplifier, but the EQL is designed to accommodate full-range audio. Our advisors can help with selecting a more suitable product for your bass frequencies. Please reach out to our advisors via online chat or phone at 1-800-324-9695.
zachary  Apr 13, 2023 (Staff)
Q
Do you still need the LC7i if using this unit?
paul  Aug 06, 2021
1 answer
A
The LC7i creates more than just one pair of preamp outputs and also creates a subwoofer preamp output which means it may still be needed depending on the final system plans. I recommend contacting an advisor by calling 1-800-324-9695 to discuss your plans and the rest of your gear to check if you need the LC7i as well.
jason  Aug 07, 2021 (Staff)
Q
Can I Use a eqL which is 2 channel for subwoofers and mids /tweets?
bianco  Aug 04, 2021
2 answers
A
I used a eql with a 6xs. Please note you won't have a way of separating front to rear though. Extremly clean signal. Crutchfield by far the best company to work with. Hope this helps.
daniel  Aug 18, 2021
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
thomas  Aug 06, 2021 (Staff)

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