STX Audio X65-2B 6.5" Midrange Speakers

The STX Audio X65-2B is a pair of 6.5-inch car-audio midrange speakers designed to add dedicated vocal and instrument presence to a vehicle sound system. It is intended for listeners building or refreshing a system that needs clearer midrange reproduction than a basic full-range replacement speaker may provide. The pair is rated at 4 ohms and is suited to compatible car-audio amplification and speaker wiring configurations.

These speakers are specified with up to 850 watts of maximum power handling and a 91 dB sensitivity rating. Their published 95 Hz to 20 kHz frequency-response range places the focus on the midrange and upper-frequency content that helps voices, guitars, horns, and percussion remain defined. RMS power handling is not specified, so amplifier matching should not be based on the maximum-power figure alone.

The X65-2B uses black press-paper cones for its primary radiating surface. This construction is paired with a listed high capacitor intended to support the speaker's midrange-frequency application. The result is a purpose-built midrange speaker format rather than a confirmed full coaxial speaker system.

Each pair includes black protective grills to help shield the cones in exposed or custom-install locations. The grills also provide a finished appearance for installations where the speakers are visible through a panel or mounted on a custom baffle. Black cone and grill styling keeps the presentation understated in a wide range of vehicle interiors.

The X65-2B can be used as part of a multi-speaker car-audio build where a separate subwoofer handles low bass and other drivers cover frequencies outside the intended midrange role. Confirm mounting dimensions, available mounting depth, crossover strategy, and amplifier suitability before installation, as those details are not published for this model. The package is sold as one pair, providing two matching 6.5-inch speakers for a stereo installation.

Key Features

• 6.5-Inch Midrange Format: Designed for dedicated midrange duties in a car-audio system.
• 850W Maximum Power: Listed maximum power handling supports higher-output system planning.
• 4-Ohm Impedance: Fits compatible 4-ohm car-audio amplifier and speaker configurations.
• 91 dB Sensitivity: Published sensitivity indicates efficient output relative to input power.
• 95 Hz–20 kHz Response: Covers a broad published midrange and upper-frequency range.
• Grills and Capacitor Included: Includes black protective grills and a listed high capacitor.

Design & Installation

The X65-2B has a black press-paper cone and black protective grills. Its visual design is suited to installations where the drivers may remain exposed, while the included grills help protect the speaker faces from incidental contact. The listing identifies this product as a pair of black 6.5-inch midrange speakers.

Verify the vehicle's mounting opening, mounting depth, fastener pattern, and panel clearance before purchasing because cutout and depth specifications are not confirmed. Use compatible 4-ohm speaker wiring and an appropriately configured amplifier or crossover setup; no RMS rating, crossover frequency, or wiring gauge is published. For best system integration, use the pair where dedicated midrange coverage is desired and confirm all final settings with the equipment documentation or a qualified installer.