AudioControlLC2i 2 Channel Line Out Converter with AccuBASS and Subwoofer Control

It has finally worked out. I installed the LC two I adjusted it and my woofers sound great.

This thing makes adding a subwoofer to a stock stereo super easy. Just make sure the speakers you are stealing signal from are full range. I added a Sundown 10 inch sub under my trucks back seat. With a Sundown SFB 1000-D Monoblock. Its so much base i have almost everything turned way down.

Does its job. Takes factory amp signal and turns on aftermarket amp. Produces powerful bass.

Did a sub and amp install on the family car, with the factory head unit. This made the process easier. Good product. Has a remote port (doesn’t come with the bass knob). Doesn’t use much power. Works well!

I installed a new amp on my door speakers recently with a passive line output converter. I immediately had tons of the dreaded Alternator noise. I spent two weeks troubleshooting. Everyone kept telling me it was a ground loop but nothing I did made a difference. I finally decided to drop the money on the LC2i active LOC and instantly the noise is gone. My system sounds awesome now.This unit works great. My only issue is the threshold trim pot for the accubass. I tried a couple of different size small screw drivers and it's really hard to get a feel for when you are actually turning it. I know they moved this knob on the Pro but it still seems like this one could use a slight modification.Solid purchase. Worth every penny!

I don't write too many reviews on here, but I definitely need to write one for this converter. I installed a budget system in my 2023 Chrysler 300C. I picked up a set of cheap 12" Nakamichi Subwoofers from Woot, a Stinger 1500 watt Monoblock Amp, and a custom Chrysler 300 box from Ebay. I spliced into the factory subwoofer on the rear deck, for my signal.Once I was above 60% volume on my factory UConnect unit, I would notice that the subwoofers started sounded awful using a standard Line Output Converter. Sounded like the subs were blown, just really bad sound. The music would get louder, but the subwoofers I connected through a cheap line output converter would sound horrible above 60% volume.I bought this and installed it, and it completed changed the entire sound of my system. My system sounds 100% better, super clear, super loud, and it just thumps now at full volume.Absolutely 100% recommend this!!!

First of all, it was nice that I received the package in less than 24 hours. I like how this made it a clean processed sound to add a subwoofer to upgrade an existing factory subwoofer that has bass roll-off. The wiring was easy and with the (GTO) Great turn-on, remote in and remote out I was able to hook up my amp to turn on easily without running the wire to the head unit. There are gain settings and AccuBASS to get your different genres of music dialed in. I highly recommend this product. I probably would have gone for the LC2i Pro if I was not on a budget and have the bass knob to control within reach when needed for the extra thump on demand to your liking.

I bought this as part of my audio system install on my 2011 FORD F250. I needed a way to create a RCA input in my amp to supply my 12" sub. This takes any speaker input and converts it into a RCA signal you can control. This particular model converts a LEFT and RIGHT speaker input into a RCA output to feed a main amp for all your speakers and has a SUB only RCA output to feed into your sub amp. This works great if you want to keep your OEM stereo in the dash. The downside is you lose fade or balance by using only 1 RCA to feed your amp. They make a LC7i model that takes ALL your speaker inputs and transforms each channel into a signal to the amp so you can maintain all our fade/balance controls in the OEM head unit. I only required a output to feed my SUB amp so this was perfect. On my FORD I had to use both the rear speakers into the LC2i because the OEM sub feed wasn't a full spectrum signal and the front speakers are only high frequencies.HOW TO SET IT UP:Here is what I did to set the LC2i up correctly. First I had understand the controls. After fiddling around, it was clear Threshold is used to set the volume level on the head unit where the AccuBass correction curve on the LC2i kicks in. The AccuBass correction does not touch the signal below the threshold. It's a pretty smooth "kick-in" since it's slightly delayed and fades in, but you can tell. The way I set this was simple. I started playing the 50 Hz tone again, and then set the volume knob to where the bass falls off. I had the AccuBass setting (cover that in a sec) set to the middle. Then I turned on my multi meter to VAC and turned up the Threshold setting VERY slowly until I saw my multi meter reading jump back up. That's where the AccuBass will now kick in. That basically means that when I get to that volume, it will begin boosting bass to correct for the OEM bass reduction. Remember you should use 3/4 volume as a MAX for all your settings. This means your bass threshold may kick in around 1/2 or so depending on your car. Some cars don't have that problem in which case just leave those settings alone.The Accubass setting is how strong of a curve or correction to you want to apply to the bass above the threshold to send to the subwoofer. Rather than trust my ear, I set the volume at and adjusted the AccuBass setting until my meter read what I wanted it to at the point where it used to drop off. I also checked the input gain on the amp to make sure it was driving the sub around max Volts AC at 3/4 volume, which it was. This ended up with AccuBass being turned down from the default middle setting.