There are a dozen or so high-quality line output converters available to help your installer integrate an amplifier into a factory-installed audio system. That said, most of them are simple devices that do nothing more than adjust voltage gain and perhaps apply some equalization to the signal. KICKER’s KEYLOC is a unique solution because it features a built-in digital signal processor that undoes equalization, delays, and all-pass filters applied to the factory signal. The goal is to establish a clean signal that you can build on. Let’s check out the outstanding KICKER KEYLOC.

Basic Features of the KICKER KEYLOC

Let’s start with the basics. The KEYLOC is a two-channel line output converter that can accept up to 10 volts of signal in low-level mode and an impressive 40 volts in high-level mode. In low-level mode, the KEYLOC presents a 60-ohm load to the driving amplifier. Many factory-installed source units and amplifiers will go into protection mode without a proper load. External resistors are available from KICKER if needed for high-level operation. The maximum output of the KEYLOC is 10 volts.

The KEYLOC measures 5.5 by 2.75 inches in footprint and is 1.375 inches thick. A Molex connector on the left side includes two speaker input channels, power and ground connections, and remote turn-on and remote output wiring. The remote output activates automatically when the KEYLOC detects a DC offset voltage on the input speaker wires, enabling an aftermarket amplifier to turn on. There are a pair of RCA output jacks on the right side of the chassis to feed your new amplifier.

The top panel of the KEYLOC features two stereo potentiometers and a display with five LEDs. The pots are for adjusting input sensitivity and output voltage. The LEDs indicate power and are part of the signal testing and KEY processing features of the KEYLOC.

Audio Analysis Tool

Depending on the design of your factory audio system, it might be difficult to find a full-range signal. The Low, Mid, and High LEDs on top of the KEYLOC can be used with the provided pink-noise test track to determine whether you have a full-range signal. The Low indicator illuminates when there is sufficient audio information in the 20 Hz to 200 Hz range. The Mid indicator monitors 200 Hz to 2 kHz, and the High LED monitors audio above 2 kHz. If you are missing low- or high-frequency information, the KEY processing will not produce a full-bandwidth signal for your new equipment.

The KEY to Audio Excellence

The KEYLOC uses KICKER’s patent-pending KEY algorithm to analyze a special audio test signal. The signal includes sine sweeps, pink noise, and impulses, which reveal frequency response, signal delay, and all-pass filter processing. Once measured, the KEYLOC applies its own signal processing to eliminate these attributes from the audio signal. The result is a flat frequency response signal that will allow new speakers, amplifiers, and processors to sound amazing. The process is fully automated and takes between two and 10 minutes to complete. Your installer can even temporarily bypass the correction to demonstrate how much the system has improved thanks to the KEYLOC.

Why You Need the KICKER KEYLOC

Factory-installed audio systems are typically designed to extract the best possible performance from inexpensive speakers. As such, radios and amplifiers include signal processing such as equalization, delays, and all-pass filters to create an optimized listening experience. Don’t be fooled: this processing is present even in simple “radio-only” systems and isn’t exclusive to premium systems with complex multi-channel amplifiers.

The goal of upgrading a car audio system is, of course, to make it sound better. As such, you are likely to add subwoofers and new speakers to the vehicle. The equalization that worked with the factory speakers is not likely to be ideal for the higher-performance options you’ve chosen. Eliminating factory processing with a product like the KICKER KEYLOC is crucial to achieving great sound in your car, truck, or SUV. The KEYLOC is also great for motorcycles, side-by-sides, and marine applications.

Visit a KICKER Dealer Today

When it’s time to make your vehicle’s stereo sound better, drop by an authorized KICKER retailer to find out whether the KEYLOC is needed to undo the signal processing built into your factory-installed audio system. You can find an authorized KICKER retailer near you using the Dealer Locator on the KICKER website.

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This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.