Kicker 47KEYLOC Key Series Smart Powered Line-Out Converter

Bought for a 2019 ford fiesta. Stock head unit had major bass reduction on anything under 50hz to the point of low bass being nonexistent. Keyloc brought the factory head unit signal back to a flat eq signal. Now I have great bass response over the full frequency range extra low bass included. 100 percent worth the money

Installing the KICKER KEYLOC DSP in my Mustang Mach-E was one of the best decisions I’ve made for my audio system. The sound analyzer process? Easy as pie. I ran through it in no time, and it automatically corrected that annoying factory bass defeat equalizer. No guesswork involved—just let it do its thing, and it’s like the system wakes up to its full potential.The low-end sound? It’s like night and day. Before, my factory system just couldn't hit the deeper notes I wanted. Now, my bass is rich, punchy, and feels like it actually belongs in a proper sound system, not like it’s cowering behind the rest of the audio. My subwoofer now has a real purpose, and the improvement is undeniable.If you're thinking about adding an aftermarket subwoofer to your ride but don’t want to deal with the hassle of fighting against factory settings, the KEYLOC DSP is a must-have. It’s the unsung hero that lets your sub really shine!

The keyLOC is an amazing for keeping your factory head unit and adding a bass amplifier. The internal dsp takes a minute to set up, but fixes the factory eq settings

Sounds great and flattened out the factory Bose signal for use with my salt amp at 1300watts rms to 2 x audio control subs. I've enjoyed quality audio for well over 20 years, and this thing helped to make things sound awesome.

Best 2 channel LOC available right now. I wish they would expand and offer a 6 or 8 channel one that works exactly the same way. Better than an Audiocontrol LC2i because of the automatic digital signal equalizer. Many new cars have the audio system tuned where certain frequencies drop out so that the vehicle has better sound with the acoustics of the vehicle or the cheapo stock speakers they use. Not only will the KEYLOC put out a clean signal all the way to the maximum output but it equalizes the signal easily if you set it up properly.The only down side is the DC offset auto on function and remote output power tied to it. I don't understand why there's not a way to disable it. For example in my case my factory head unit stays powered up (even while it's off with no power output) so that if you re-start the vehicle within 10 minutes it works immediately and doesn't have to boot up again. While it does that with the vehicle off there is a DC voltage constantly on speaker wires going into the KEYLOC. Common sense would say that if you use the remote input wire that it should automatically disable the DC offset auto on function but it does not. My amp stays powered on for a while after the vehicle is turned off drawing power for no reason. So even if I run a remote wire to the KEYLOC and my amp, the KEYLOC stays powered on for an extra 10 minutes after I shut off my vehicle.Regardless it works great, is very versatile, puts out a clean signal (as long as the signal in is clean) at a way higher output voltage than almost all other LOC's.If you have a new vehicle with a touchscreen navigation head unit that's Android based this is the LOC for you.

I bought this to add a sub to a factory radio, my first try at setting up the DSP failed , I was going to send it back, and buy something else.Then after a few days of research I decided to go threw the setup again and follow closely ALL the instructions on kickers web site. This timeI was rewarded with a beautiful sounding system.

My amp is in its 5th year of flawless operation, really though an accessory would be more durable. 3 yrs and I’m looking for a replacement.

I ran the LC2i for a couple months but after switching to this KEYLOC I found that the lower frequencies (20-30hz) are now filled in where with the LC2i (non-pro version) those frequencies had rolled off.Now the bass in the music sounds much better. Thank goodness. Great for my Honda Accord 10th gen factory radio.