AudioControl LC2i 2 Channel Line Out Converter with AccuBASS and Subwoofer Control

The AudioControl LC2i 2 Channel Line Out Converter is a game-changer for improving the audio quality in your vehicle. The AccuBASS feature compensates for low-frequency loss, making bass response much fuller and more dynamic. Subwoofer control is a nice addition, allowing for fine-tuned adjustments to get the perfect sound. The installation is straightforward, and it works seamlessly with both factory and aftermarket audio systems. If you're looking to elevate your car's sound system without replacing the entire setup, this is the perfect solution! Highly recommend!

Even though the package came open and I was mad at that but after installing it OMG! What a difference!!! It really works amazing. Strong signal and good hard bass that doesn’t roll off as you increase volume. Great a MUST HAVE if your installing an amp on a factory radio

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.

Installed on a 2018 Honda Accord Sport with the factory 180W (supposedly) head unit, a Kicker Key 180.4 (pretty much the same as the 200.4) and a Rockford Fosgate P300 10 inch powered subwoofer. Wanted to leave the review because I was using the high powered inputs on the Kicker Key and RF P300 without the LC2i... it sounded okay, but adding the LC2i between the factory head unit and the amps made a HUGE difference. Well worth the money and install time.

Overall I would consider this a good purchase. This product did what it said it would do and did it well. After completing the installation I did have one issue and it was a result of not having the PRO model (LC2i Pro)I have a 2011 Volvo C30 with the Dynaudio Premium stereo and I wanted to add an amp and sub so I decided to go with this model. It was hard enough having to remove the trim on the passenger side rear of the car to access two sets of speaker wires (both black and white braided wires headed to the front speakers). To get to the wires I had to remove the seats and the trim.Upon completion of this install, I turned the car stereo on and realized the amp did not turn on as I began to play music. Lo and behold, as I turned the volume up to about halfway, the amp did turn on and the bass on the sub was rather loud and unexpected at that point. As I continued to use the unit, the amp would shut off if the sound dropped below half and it would kick back in when I turned it up. This became more of a nuisance than anything so I reached out to the manufacturer to get some tech support.The tech support was great, they have phone, email, and text support. I tried all three and got the best result through email.As it turns out, the PRO version of this device has a switch that you can choose how the device recognizes signals to "trigger" it to turn on and turn the amp on as part of the GTO (Great Turn On) function. On the non-pro model there is only one method by which it realizes it needs to turn on and a simple audio signal is not enough. You can choose "audio" as the trigger method on the Pro model but not on this one.After finding out this information, I decided to simply run a remote turn-on wire to the fuse panel in the front of the car. I initially bought this device so I wouldn't have to do that part but it was actually quite easy to add at the end.I did pull this amp and sub from another car that was powered by a cheap aftermarket head unit with preamp outputs and it was a night and day difference with using a quality line output converter. I was able to turn the gains down below 1/4 on the amp and it sounds so much better than it did on my previous setup.I am running an Infinity Kappa One K amp at 2 ohms to a single Kicker Solo Baric 2ohms sub and it does indeed sound great.I am rating this product 4 stars because of the limited GTO functionality that I think needs to be on all of the LOC's that are made, not just the better ones.

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.

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!