The Reference Fit amplifiers will satisfy the discerning mobile audiophile with its simple design and unyielding power. These 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.

Model name: XR-1S, KAC-X1D

Utilizes 3 characteristics to produce accurate controlled bass performance
1. Improved damping factor eliminates unwanted speaker movement,
    lowering overall distortion
2. Reduction in distortion results in accurate power output
3. Clean natural sound output achieved by cancellation of switching noise

Model name: XR-1S, XR-4S, KAC-X1D, KAC-X4D

Dual Power Supply ensures stable operation of the amplifiers internal components, even under the most demanding conditions.

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XR-1S, XR-4S for Americas market　KAC-X1D, KAC-X4D for Europe/Asian market