MB Quart XK2-113 5.25" 2-Way Coaxial Speakers

The MB Quart XK2-113 is a pair of 5.25-inch, 2-way coaxial car speakers designed to replace or upgrade compatible factory speaker locations. Its compact fitment helps address the common need for better sound from vehicles with limited door or dash speaker space. With a 4-ohm impedance, the pair is intended for use with typical car-audio speaker outputs.

These speakers suit drivers looking for a straightforward upgrade path without moving to a separate-component speaker system. The coaxial configuration combines the system's two-way design into each speaker assembly, helping simplify installation where a standard 5.25-inch speaker location is available. Confirm vehicle opening size and behind-panel clearance before purchase.

The XK2-113 is rated for 90 watts RMS and 180 watts peak power per pair. Its published 88 dB sensitivity and 55 Hz to 22 kHz frequency response describe a broad operating range for everyday music, spoken-word audio, and general in-car listening. Power matching should be based on the RMS rating rather than the peak rating.

MB Quart specifies a 4.48-inch cutout requirement and a 2-inch mounting depth from the flange. Those measurements make this model a practical option when space behind the mounting surface is limited. The 5.25-inch size is commonly used in compact factory speaker positions, but fitment varies by vehicle.

For a complete system upgrade, the XK2-113 pair can be connected to a compatible head unit or external amplifier with 4-ohm speaker outputs. Correct positive-to-positive and negative-to-negative wiring helps preserve proper stereo phase. Use secure mounting and protected wiring to support reliable operation in a vehicle environment.

Key Features

• 5.25-Inch Size: Fits compatible compact vehicle speaker locations.
• 2-Way Coaxial Design: Integrates the two-way speaker system in each assembly.
• 90-Watt RMS Rating: Provides a realistic power-matching reference for the pair.
• 180-Watt Peak Rating: Indicates short-term maximum power handling for the pair.
• 88 dB Sensitivity: Supports efficient output with compatible car-audio power.
• 4-Ohm Impedance: Matches common car stereo and amplifier speaker outputs.

Design & Installation

The XK2-113 is specified as a 5.25-inch coaxial speaker system with a flush-mount installation style. Available product information describes it as a durable design, while detailed cone, surround, magnet, and voice-coil material specifications are not published. The speakers are listed in a black finish and as a pair.

Measure the vehicle opening against the 4.48-inch cutout diameter and verify at least 2 inches of mounting depth from the flange. Connect each speaker with correct polarity to a compatible 4-ohm head unit or amplifier channel, and avoid exceeding the 90-watt RMS rating per pair. Mounting hardware, adapters, and vehicle-specific wiring harnesses should be selected as needed for the installation.