Kenwood eXcelon XR-1S Mono Digital Power AmplifierThis is Kenwood’s Top of the Line Mono Bass Amp with a tiny footprint. The XR-1S is only 9 1/4″ wide and 7-9/16″ tall. Very Small. Excellent in hard to fit vehicles like Crew Cab or Extended Cab Pickup Trucks. On display in our store along with the other fine Kenwood amplifiers. We can install one for you today.

Kenwood XR-1S Amp fits easily under seat of Chevy Avalanche Crew Cab mounted on an under seat up firing box with two shallow mount 12″ subs.

The eXcelon Reference Fit amplifiers will satisfy the discerning mobile audiophile with its simple design and unyielding power. These Kenwood car amplifiers are built to be easily installed in the tightest applications yet they provide the power required to pump out the sound you want to hear.
General Features

• 600 Watts (RMS) x 1 @ 4ohms
• 700 Watts (RMS) x 1 @ 2 Ohms
• Dual Power Supply
• Dual Sigma Drive
• Variable Low Pass Filter: 50~200Hz -24dB/oct
• Variable Infrasonic Filter: 15~40Hz -24db/oct
• Bass Boost Remote Ready (KCA-WR10)
• Width: 9-1/4” (235mm)
• Height: 2-1/16” (52mm)
• Depth: 7-9/16” (192mm)

Class D Amplifier
For subwoofer applications, Kenwood Class D amps are beautifully efficient and their small size offers installation flexibility.

Dual Sigma Drive
This advanced negative feed back circuit improves damping factor and increases accuracy and sound quality. When a signal is passed to a subwoofer, like a 50Hz note, the speaker will move and create the note. However, because the speaker has mass and a suspension, it won’t stop moving once it’s in motion. This extra movement (sound) creates a type of distortion that’s not part of the original signal. The negative feedback circuit senses this unwanted movement and send out an opposite pulse to stop the speaker like an electronic brake.