MB Quart XK1-116 6.5" 2-Way Coaxial Car Speakers

The MB Quart XK1-116 is a pair of 6.5-inch, 2-way coaxial car speakers designed to replace worn or basic factory door, dash, or rear-deck speakers. Each speaker combines a midrange/woofer and tweeter in one assembly, helping simplify a conventional speaker upgrade. They use a 4-ohm design compatible with many factory and aftermarket car-audio systems.

This X-Line Series model is rated for 40 watts RMS and 80 watts peak power per speaker. For the pair, that equals 80 watts RMS and 160 watts peak handling. Its 55 Hz to 32 kHz frequency-response specification supports broad musical playback from lower midbass through high-frequency detail.

A 20 mm pure titanium dome tweeter handles upper-frequency reproduction, while the woofer uses a mica-filled polypropylene cone. The tweeter includes an aluminum voice coil and nylon surround. A UV butyl rubber surround supports the woofer cone during normal operation.

The XK1-116 uses a PA66 composite basket reinforced with glass fiber, along with a bumped cotton spider. An internal crossover is housed in the tweeter post to divide high-frequency content from the midrange/woofer section. The specified 12 dB-per-octave high-pass crossover design helps support the coaxial speaker layout.

These speakers are suited to vehicles that accept 6.5-inch speakers and have adequate mounting clearance. Their 5.59-inch cutout requirement and 2.4-inch chassis depth should be checked against the vehicle before purchase. They can be used with a compatible factory radio or an aftermarket amplifier that is appropriate for their 4-ohm, 40-watt RMS-per-speaker rating.

Key Features

• 6.5-Inch Coaxial Design: Combines woofer and tweeter in each speaker.
• 40W RMS Per Speaker: Handles 80 watts RMS per pair.
• 20 mm Titanium Dome Tweeter: Reproduces upper-frequency information in a compact assembly.
• Mica-Filled Polypropylene Cone: Provides a durable woofer cone material.
• Internal 12 dB Crossover: Directs high frequencies through the coaxial system.
• PA66 Composite Basket: Uses glass-fiber reinforcement for the speaker frame.

Design & Installation

The XK1-116 combines a mica-filled polypropylene woofer cone with a UV butyl rubber surround, a bumped cotton spider, and a PA66 composite basket with glass-fiber reinforcement. Its titanium dome tweeter uses an aluminum voice coil and nylon surround. The crossover is integrated into the tweeter post, keeping the coaxial design self-contained.

Verify a 5.59-inch mounting cutout and at least 2.4 inches of chassis depth from the mounting flange before installation. The Euro-DIN-style mounting brackets and holes are intended to accommodate OEM and custom midrange mounting locations, while spade push-on terminals allow crimped connections or direct soldering. Use proper polarity and match the speakers to a 4-ohm audio system.