AudioControl LC2i PRO 2-Channel Active Line Output Converter with AccuBASS for Adding Subwoofers, Amplifiers to Factory Car Audio Receiver Head Unit, Includes ACR-1 Dash Remote Bass Knob Controller

I used this on a BMW M5 with the stock sound system and was very impressed. Installation was straightforward and easy to complete. It made a noticeable difference in correcting the frequency curve and really improved the overall sound quality. Highly recommend for anyone looking to upgrade their factory system without a complicated install.

50,000 mile review. It's perfect. Does exactly what it's supposed to do. Works well with 16v input even though it's not advertised to. Compatible with any vehicle including my 2023 Tesla model 3 performance. Very durable. Sound quality is not an issue. Expensive for the money but you know you are getting a great product.

Made connecting to factory radio a breeze. Installed in my 2017 Tesla Model S and absolutely love the output. Definitely recommend to anyone looking for n easy install.

I have had issues with my sound system for months. After installing this in my 2024 Volvo S60, my system works every time I turn it on!

If you're like me and have a newer vehicle with lots of factory options that run through the head unit, going aftermarket can be a huge pain in the rear. This active LOC has crystal clear sound output without all the engine noise and muddy sound processing from a budget aftermarket setup. Works even better if your car has a factory amplifier with a low frequency output. It's also fairly easy to install whether you have very little experience, or many years of car audio under your belt. There are also some very easy to follow youtube guides that explain all of the features and how to easily set them.

4 stars just cause I didn’t get the pick

This thing is a game changer output is very good. Easy to set up sound frequency is way better than the regular LCI converter. Go with this one you will be satisfied.

For years I was running a cheap active LOC in my 2014 hyundai veloster turbo, and I wanted more from my subs. I'm running two alpine type R's (swr-10d4) 1000W RMS each, wired to one ohm on a Hifonics Brutus (BRX2000.1D) 2000W RMS @ 1 ohm. I wanted to upgrade my prefab box thinking this was my issue. I did some research and found that I have my gains set too low and after setting this to the proper level it sounded louder but still sounded distorted. It was then I understood my cheap LOC was the reason why, I was getting distortion with barely any preout voltage (had to turn my gain 'way up' to match the low preout voltage.) I decided to bite the bullet on this LC2I. I tapped into the factory subwoofer and played a 50hz 0db test tone through my radio, set at 30/35, turned my level up on my LC2I until the maximized light came on, then backed it off a little. To set my gains on my amp, I took the square root of my 2000w amp multiplied by the one ohm to get my target voltage at the amps output terminal (44.72 V) I then tested my voltage with a DDM at the amps outputs terminals and used the amps gain knob to achive my target voltage of 44.72. The gain was turned down substantially compared to when I was using the cheap LOC, proving the new LC2I was providing a higher preout voltage. The quality and clarity of the subs are now night and day different. I wish i did this upgrade alot sooner. This was well worth the money spent, and if you are using a cheap LOC and looking for more out of your system this is a no brainer. Just do it.

Best product

Llegó sin el control a distancia, si bien decía que el producto estaba ya abierto, comentaba que contenía el mando a distancia el cuál no llego

Although these are primarily used for car audio to enable addition of amplifiers and subwoofer to a factory radio , I used this as a home receiver tool to add pre-outs to run my Center channel from a secondary amplifier. This allowed me to run 2 Center speakers together bi-wired using a channel A+B amplifier as secondary mode. To power it, I repurposed a USB Sata adapter power supply ( for external drives) and was able to run a trigger wire from the main receiver to power it on at the same time as the main receiver. I was very happy with the result. It widened the presence of the Center speakers (2) considerably and sounded awesome.

Very good product, have excellent instructions on how to connect it. I love the front knob to control bass.

Works as it should