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AudioControl LC-1.800 Mono subwoofer amplifier — 800 watts RMS at 2 ohms

Item # 161LC1800

Two keys to unlocking great sound in a car stereo system are serious power and extensive control — and this...

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Two keys to unlocking great sound in a car stereo system are serious power and extensive control — and this...

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About the AudioControl LC-1.800

Buck Pomerantz

Power galore

Two keys to unlocking great sound in a car stereo system are serious power and extensive control — and this amp's got them both. For power, AudioControl's LC-1.800 mono subwoofer amp puts out up to 800 watts RMS, so it'll make your subwoofers happy. The adjustable low-pass and fixed subsonic filters make sure your sub gets only the frequencies it was designed to play, while AudioControl's AccuBASS® circuit ensures that your bass sounds great.

Power galore

Two keys to unlocking great sound in a car stereo system are serious power and extensive control — and this amp's got them both. For power, AudioControl's LC-1.800 mono subwoofer amp puts out up to 800 watts RMS, so it'll make your subwoofers happy. The adjustable low-pass and fixed subsonic filters make sure your sub gets only the frequencies it was designed to play, while AudioControl's AccuBASS® circuit ensures that your bass sounds great.

Active controls

Most factory radios turn down the lower frequencies as you turn the volume up in order to minimize stress on inexpensive factory speakers. AccuBASS eliminates this bass rolloff, so you get maximum bass performance when you add aftermarket amps to a factory radio. Onboard LEDs indicate optimized signal flow for inputs and outputs, plus give you a warning when a source is too loud and causing distortion. An optional wired remote lets you control bass volume from the front seat.

Works in almost any system

AudioControl designed the LC-1.800 to work equally well with aftermarket and factory stereos. Speaker-level inputs allow you to connect to almost any factory radio. Signal sensing circuitry turns the amp on via the speaker-level inputs, so you won't need to run a remote turn-on wire throughout your vehicle.

Subwoofer Wiring Diagrams

To see sample wiring diagrams for all common subwoofer/amplifier combinations, check out this informative article.


Product highlights:

  • mono subwoofer amplifier
  • 500 watts RMS x 1 at 4 ohms (800 watts RMS x 1 at 2 ohms)
  • Class D amp technology
  • AccuBASS® circuitry for improved bass response
  • MILC™ (Maximum Input Level Control) LED optimization and clip indicators
  • variable low-pass filter (30-230 Hz, 24 dB/octave)
  • fixed subsonic filter: 24 Hz
Other Features:
  • preamp and speaker-level inputs
    • GTO™ (Great Turn On) signal-sensing turn-on with speaker-level input
  • optional wired remote level controller available
  • fuse rating: 40A x 2
  • wiring and hardware not included with amplifier
    • 4-gauge power and ground leads recommended
  • dimensions: 9-1/16"W x 2-1/8"H x 7-13/16"D
  • warranty: 5 years
  • MFR # LC-1.800

What's in the box:

  • Amplifier
  • Two 40-amp ATO fuses
  • 2.5 mm Allen key
  • Speaker-level input plug (installed)
  • Owner's manual

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Product Research


Overview: The AudioControl LC-1.800 mono subwoofer amplifier is designed to enhance the sound of your car stereo system, whether it's a factory or an aftermarket one. Outputting 500 watts @ 4 ohms and 800 watts @ 2 ohms, the LC-1.800 can accept both line and speaker level inputs. Key features include AudioControl's AccuBass compensation circuit, GTO signal sensing turn-on, and a connection port for the optional ACR-1 remote level control (sold separately). The amplifier features a black brushed aluminum chassis, with black powder-coated cast alloy heat sinks and a one piece bottom panel. A black brushed aluminum cover is provided to protect the amp controls from tampering. The included 2.5mm Allen key is used to remove the cover.

AccuBASS: The patented AccuBASS processing circuit compensates for factory bass rolloff to improve bass performance, especially with most factory installed sound systems. The circuit has two rotary controls: the Threshold lets you dial in the level at which the AccuBASS will begin to work, while the Level control raises or lowers the level of AccuBASS compensation. A slide switch allows the AccuBass feature to quickly be Enabled or Disabled.

ACR-1 Remote: The optional AudioControl ACR-1 wired remote lets you adjust the subwoofer output level from the driver's seat. The remote level control comes with a 20' cable, terminating in an RJ-14 jack that plugs into the amp, and is designed to be mounted under a dash for easy access while driving.

Maximum Input Level Control (MILC): The amplifier analyzes the input signal to detect any clipping. If the signal reaches the level of clipping, the MILC Source Clip LED lights red, prompting you to turn down the gain level. When the gain level is maximized, a green Maximized LED will light to indicate the gain is set to the optimum level.

GTO (Great Turn On) Signal Sense: If you are connecting the amplifier to a factory stereo or an aftermarket unit without a remote turn-on lead, the GTO Signal Sense circuitry can turn on the amplifier when an audio signal is detected on either the line-level or speaker-level inputs. After a period of time with no signal input, the amp will turn itself off. An On/Off slide-switch is provided on the amp activate the GTO Signal Sense feature.

Controls: The LC-1.800's controls are located under a protective panel that can easily be removed with the included 2.5mm Allen key. A flat-head screwdriver (not included) is needed to adjust the rotary controls which include the AccuBass and GTO settings, a Low-Pass crossover with a range from 30 Hz to 230 Hz, a Polarity switch with 0 or 180, and LED indicators for Power and Protection.


  • Power Output:
    • @ 4 Ohms: 500 Watts
    • @ 2 Ohms: 800 Watts
  • Input Voltage (RCA): 500 mV to 6 V RMS
  • Speaker-Level Input Voltage: 3 V to 40 V RMS
  • THD: < 0.01%
  • S/N Ratio: 102 dBa, Ref 500 Watts @ 4 Ohms
  • Damping Factor: 670 @ 10 Volts, 4 Ohms Output, 100 Hz
  • Bass Processing: AccuBass
  • Crossover: 24 dB/Octave Linkwitz-Riley, Adjustable from 30 - 230 Hz
  • PFM Subsonic Filter: 24 Hz
  • Power/Ground Wire Size: 4 AWG
  • Fuse Rating: 2 x 40 Amps
  • Weight: 4.5 lbs.
  • Dimensions: Width: 9.02", Height: 2.08", Depth: 7.79"

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Customer Q&A

13 questions already asked

What is the minimum operating voltage of this amp?
kevin  Oct 08, 2023
1 answer
This specification is not listed by AudioControl, Kevin. I would also be interested to know why you are planning on running less than the standard 12V (14.4 ideally when running) voltage in your setup? If you are planning on a battery powered system and need to calculate a proper run-time or know how much minimum voltage you can supply without compromising performance, you may want to contact AudioControl directly for those specs as they are not listed in the factory documents. I hope this helps!
bo  Oct 08, 2023 (Staff)
Could this amp handle 2 JL Audio 10TW3-D4 subwoofers at 4ohm each?
andrew  Jan 22, 2023
1 answer
Greetings Andy, and thank you for your question. Technically the 10TW3-d4 is a dual 4 ohm sub, each one would be wired down to 2 ohms, or up to 8 ohms. Two of those cannot be wired to be 2 ohms. The Audio Control LC 1.800 puts out the 800 at 2 ohms. You would need to get your subwoofers ohm load to 2 ohms to get the 800 watts out of it. Two of the 10TW3-D8 subwoofers could be wired to be 2 ohms.
hogan  Jan 22, 2023 (Staff)
What is the rms wattage at 3ohms?
brian  Jan 04, 2023
1 answer
Greetings Brian, and thank you for your question. Audio control does not spec out their amps at 3 ohms. I contacted their tech support, and the answer was add the 2 ohm, and the 4 ohm ratings, then divide by 2. ball park, 650 watts at 3 ohms. I cant think of a manufacture that lists an amp at 3 ohms except an amp that puts out equal power from 1.5-4 ohms.
hogan  Jan 04, 2023 (Staff)
How do you tune the accubass??
abraham hernan  Aug 22, 2022
1 answer
If you ordered this amplifier from us here at Crutchfield, our Tech Support team will be happy to help with adjusting AccuBASS for your particular installation. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
zachary  Aug 22, 2022 (Staff)
Would this be an appropriate amp to pair with the Alpine SBV-10-WRA that handles up to 350 watts RMS (1,050 watts peak power)? The head unit I want to use also has a subwoofer Preout LPF: 25Hz/40Hz/63Hz/80Hz/100Hz/160Hz/250Hz. I'm not sure what all this means?
hunter  May 23, 2022
1 answer
No, this amp would not be a good match for that sub. The Alpine SBV-10-WRA can only handle up to 350 watts rms at 2 ohms. The AudioControl LC-1.800 outputs 800 watts rms at 2 ohms which is much more power than the Alpine subwoofer can handle at a constant rate. We also need to know a little more about your application. Give us a call at 1-800-324-9695 and we'll be happy to help you find a better solution.
allison  May 24, 2022 (Staff)
Would this amp be too much power for one Focal P 25 FSE? Probably a silly question but I'm new to car audio
bill  Feb 26, 2022
3 answers
A bit overkill. That sub can handle 280 watts of rms power. That amp would be perfect for powering 2 of those subs.
anthony  Feb 26, 2022
It's a bit of overkill, but it would work. Just don't turn the amp up all the way. I have two of these subs and they sound great
eric  Feb 26, 2022
Focal subs love power and this combo can work together.
brian  Feb 26, 2022
Is this enough amp to drive my JL single sealed 10W3, or should I step up in power to either the HD750, XD1000 or AC LC-1.1500? There is a lot to consider with this question, but I want to get it right. I am leaning towards this or the XD1000.
patrick  Nov 23, 2021
7 answers
This amp is plenty to drive a single 10W3. I am using this amp to drive two 10W3 in a JL stealth box in my 2020 Ram truck. Very good amp. I am using a D6.1200 to power a 3 way active front stage with GB Audio Frog speakers. Great quality amps with plenty of power.
bill  Nov 28, 2021
This amp is more than enough for a single 10W3. If you have the dual 2 ohm 10W3 wire the coils in series and you should have a perfect 500W match for that sub. If you have dual 4 ohm version wore them parallel and be sure to set your gain correctly and you will be fine also. This amp puts out more than the 500/800 it's rated for also, I couldn't recommend it more!
john  Nov 23, 2021
The Xd10001v2 mono (1000W RMS @2 Ohm) is twice the power that a 10W3 can handle (500W @ 2 Ohm). Would not do that one.
adam  Nov 23, 2021
I use this amp to run my 12 inch Q class L7 kicker and it's amazing! Such a powerful amp.
bradd  Nov 23, 2021
Your JL 10W3 is 500W RMS @ 2 Ohm, and this LC-1.800 is 800W RMS @ 2 Ohm. You don't want to do more power than this amp because your 500W RMS sub won't sustain more than 500W. You could even do less power.
adam  Nov 23, 2021
That is not only MORE than enough power for a single sealed 10W3, but is also an awesome sounding amp. Super clean and powerful signal for your sub. I would choose this over any of the others you listed, if it were me.
richard  Nov 23, 2021
This amp will push that sub with room to spare, I have it on two Alpine Type S at a four ohm load and it's only turned a little less than half way up. I am currently looking for a set of shallow mount tens or a twelve that can take a two ohm load.
lamarcusco  Nov 23, 2021
Do you recommend adding the epicenter with this amp or is it not necessary ??? I have that doubt
luis  Nov 11, 2021
2 answers
It is not necessary with this amp.
stephen  Nov 11, 2021
No, the epicenter is used to increase bass output, you can use your head unit or the included bass boost on the unit to do the same thing.
gary  Nov 11, 2021
do i need a line output converter for this amp ?
james  Sep 11, 2021
4 answers
It would depend if your just powering a set of woofers (woofers only yes) or the entire car. You will have to get the signal from the radio some how if your powering the entire vehicle. They make wiring conversion kits for vehicle so you could opt to go that route or use a line out converters.
stephen  Sep 13, 2021
No, it has speaker level inputs and Accu Bass.
anthony  Sep 12, 2021
No line converter needed. You can run full signal from any 2 speaker outputs straight to the amp.
michael  Sep 12, 2021
No. This actually has a very nice speaker level (high level) input.
brandon  Sep 12, 2021
Is this amp 1 ohm stable?
robert  Dec 31, 2020
4 answers
nelson  Dec 31, 2020
Yes. This amp is a beast.
anthony  Dec 31, 2020
No. AudioControl states that the minimum ohm load on the amp should be 2 ohms. Ratings are only provided in 2 and 4 ohms.
brandon  Dec 31, 2020
No. 2 ohm achieves 800rms.
randy  Dec 31, 2020
melissa  May 29, 2018
2 answers
No, you shouldn't be using this for a factory system to begin with
gary  Nov 11, 2021
From what I can tell this unit does not sum multiple channels as its designed for a subwoofer application. It only has 2 channel input, L/R. With the crossover you can feed it a full range signal if necessary.
aaron j  May 30, 2018
Does this amp have a built in fan?
ga  Feb 11, 2018
1 answer
The AudioControl LC-1.800 does not feature a built-in cooling fan. Hope that helps! My Bio:
david  Feb 14, 2018 (Staff)
Why would I need a wired subwoofer remote?
michael  Jan 19, 2018
2 answers
It includes one, it is optional if you use it though.
gary  Nov 11, 2021
Its used to adjust the level of the bass without having to go the amp to do it for individuals that like to boost the bass for some songs but turn down the bass on other songs. HTH! My Bio:
jason  Jan 23, 2018 (Staff)

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