Scosche LOC80 Line Output Converter - 2 Channel High/Low RCA Converter Car Audio - Ideal for Subwoofer Amp - Line Level Converter for Car Stereo Amplifier - Easy Installation - Quality Sound

This works great!! Great for stereos that do not have rca jacks easy install. Let's you connect your amp and subwoofer to a factory car stereo

works great, sounds great, thank you....

Sounds amazing!!! Love it!Don't buy the cheapest trying to save a couple of dollars. You'll get bass distortion.This one solves that and it's better high quality!

Hey everyone, Mike Jones here again with another quick and concise Amazon review.So up today we have the Scosche Loc80 2-Channel Adjustable Lineout. If you are looking at this product then you already know what it does. This item is designed to allow you to run a wire from any speaker in your car into this unit and then into your amplifier to tell your subwoofer what bass notes to play. This item does just that. I have a BOSE system in my G35 and it came with the built in subwoofer which was terrible. I disconnected it and ran a wire from the rear speaker into this unit and then into my amplifer and subwooer and it works perfectly.The pros: Easy to use and install, mounted right up and has lasted over 3 years.The cons: None that I am aware of.The overall: This item is easy to use, offers little feedback, and has lasted over 3 years. I WOULD buy this product again.I hope you enjoyed this quick review. If so, like my review as helpful. Thanks!_Mike Jones

Did what it's supposed to do. Good features are it's adjustable, easy to hook up, and better sound quality than the one i bought from Autozone.

First of all,....if you are looking to add subwoofer speaker(s) to your auto audio system, and you have purchased the Subwoofer speakers, and have a separate dedicated amplifier for those speakers,...AND your intention is to tap into your existing speakers circuit as your audio source,...then you NEED this item. On your dedicated subwoofer amplifier, there will most likely already be a subsonic filter control, and audio input (GAIN) attenuation controls for left and right channels, so you assume you already have all that you need, but can't figure out WHY your audio output to the sub speakers is so distorted and over-driving the speakers. That is because the Subsonic filter, and Gain controls on the amplifier are poorly attempting to attenuate higher frequencies and isolate lower frequencies AFTER your amplifier has already amplified them. Which is actually a lot of extra work, and wasted energy for an amplifier to do. So, the amplifier is essentially working too hard to amplify frequencies you don't even want to go to the sub speakers. What the manufacturers of this device DON'T mention, is that it not only variably attenuates the volume of the incoming left and right channels of audio to your amplifier, but it does something even MORE important. It removes or blocks the higher (unwanted) frequencies BEFORE they enter your subwoofer amplifier, so, it is using all it's power to only amplify the low frequencies that sound good through subwoofer speakers. This isn't in the specs on this device,...but that is exactly why it is a necessary component to the above mentioned audio setup. I have a 2008 Honda Goldwing GL1800 motorcycle, with this device tapping into the audio to my rear speakers, then the output from this device is jumpered to the input of the dedicated 1800 watt subwoofer amplifier, via two SHORT RCA type cables. (Composite audio/video cables like the ones used to connect TV's to standard DVD players). And from the amplifier....it outputs to TWO 8 inch "Kicker Competition" subwoofer speakers mounter inside bottom of the side storage compartments, with cutouts for sound and subsonic waves to escape.. And boy oh boy, does that bike have some kickass ("Where the hell is all that Bass coming from?") Bass now. To set up the whole assembly, play some music on your primary audio source that you know has good subwoofer tones. slowly increase the PRIMARY audio sources volume, to pre-distortion level to your REGULAR speakers, then back off a few numbers to give yourself room to later increase volume without distorting your main speakers. Next, set the volume controls on the new device to halfway for both left and right. Also set the attenuation (input Gain or Volume controls) left and right inputs on the subwoofer amplifier to halfway for both. If there is a Subsonic filter control on the amplifier, set it also to halfway, for starters. Adjust later to suit your tastes. If there is a Frequency switch on the Sub amplifier, set it to the lower frequency range. This arrangement will get you in the ballpark of average subwoofer output to your sub speakers, If there is a Bass Boost control on your amplifier, if it is adjustable, set it to halfway. If it is a switch, try it first with it off, then later, with it on to determine which you prefer. The device pictured is slightly different from what you will get. The one I got had only 4 wires on one side for Left and Right inputs, and, on the other end,..the two RCA type outputs to jumper to the RCA type inputs on the amplifier. And the Left and Right volume attenuation controls on the top. Once you initially set them, to about halfway,...you won't need to readjust them . Without this device to pre-filter the higher frequencies before amplification of the lower frequencies, you are relying on the controls on the Sub Amplifier to do all the filtering, and they do not do nearly as good a job, as pre-filtering the unwanted frequencies, BEFORE they are amplified. Best of all, is the low cost. A more expensive device, will do the same thing, but only cost more.

Lots of people had good luck with this item, but I must have gotten a dud. Replaced it with another brand and my system is running perfectly.

This worked great for adding an amp to a system that I couldn’t get access to, to run the RCA cables. The only issue, and maybe it was me, is when the amp is turned on, it seems to cause interference when the FM radio is on. It does not have an issue using your phone, to connect to music, or the media player, just the FM function. Normally I play music from my phone through the blue tooth on the stereo, and it works great.