The Audison brand is noted for innovative, thoughtful designs that offer good sound quality at a price that provides some degree of exclusivity. Audison simply builds products that meet the challenges of getting a good audio system in a vehicle, while providing what the quality-oriented end user wants and installers need.
The Audison LRx 5.1k amplifier is another example of that type of unconventional thinking, and the result is a very well thought out design that's easily adapted to almost any application or installation. This 5-channel amplifier has a host of unusually thoughtful features. Its design incorporates a pair of channels rated at 50 watts each into 4 ohms, another pair rated at 160 watts each into 4 ohms, and a subwoofer channel rated at a stout 650 watts into 4 ohms. These channels and power are packed into an amazingly small chassis, measuring under 8" wide, 2.25" high and a bit over 21" long. The heatsink is finished in textured powdercoat and has a color that is sort of a cross between charcoal gray and gunmetal. Removable plastic caps cover all the connections and controls, preventing any "accidental" adjustments.
Audison also brings to the install their Easy Common Interface, which provides reversible RCA connectors that can be swapped out for a connector for high-level inputs, either of which can be configured so the signal wires can be hidden under the amp. A pair of channels in the bottom side of the chassis allows you to hide all the wiring under the amp if you choose. The top nameplate lights up in blue when the amp is turned on and it too can be reversed, allowing the amp to be mounted in either direction, thus keeping the logo oriented correctly. These very thoughtful touches make the installer's job of cosmetic integration much easier. Audison even includes the necessary tools along with a spare fuse.
The speaker and power connectors are sized adequately and their good-quality design allows the wiring to be routed and hidden under the amp if desired. A 100-ampere AFS (mini ANL) fuse is mounted on the chassis. The amp also features three other connectors. One connector provides the B+ input for the turn-on, as well as a B+ output if you are using the built-in signal sensing circuitry, allowing you to turn on additional amps in the system. The second connector allows you to interface the amps input with the OEM preamp signal level and use one of the OEM speaker wires to turn on the amplifier. These are great features to have when interfacing the amp with a variety of OEM systems. The remaining connector is where you connect the remote subwoofer volume. My only gripe about these connectors is that they are the "build-it-yourself" type that require you to crimp little bare terminals onto a wire, orient them correctly into the holder and assemble it. While it's really not a difficult process, I'd prefer a quicker, less fidgety solution.
The controls include variable crossovers for all the channels, including the ability to bandpass the more powerful stereo channel pair. The primary system configuration that the designers seem to have had in mind is to utilize the lower powered channels to drive tweeters, the higher powered stereo channels in a bandpass configuration for the mids, and the high-power channel for a subwoofer.