Memphis SRX42V 4" 2-Way Coaxial Speakers

The Memphis SRX42V is a pair of 4-inch, 2-way coaxial car speakers designed to replace compatible factory speakers in compact door, dash, or rear-deck locations. They provide an option for restoring or updating a vehicle audio system where space behind the speaker opening is limited. Each speaker uses a 4-ohm design and handles up to 30 watts RMS.

These Street Reference Series speakers combine a polypropylene woofer cone with a rubber surround to reproduce midrange and lower-frequency information. A PEI dome tweeter is integrated into each coaxial speaker for high-frequency playback from the same mounting location. The result is a straightforward full-range speaker solution for systems that use a small 4-inch factory location.

The SRX42V is rated at 88 dB sensitivity and has a listed frequency response of 90 Hz to 20 kHz. Its 30-watt RMS and 60-watt peak ratings are specified per speaker, for 60 watts RMS and 120 watts peak per pair. This power range makes the pair suitable for a compatible factory radio or a modest external amplifier.

A key consideration for this model is its compact installation profile. Memphis lists a 1.7-inch mounting depth and a 3.67-inch cutout diameter, helping it fit locations that cannot accept deeper speaker baskets. Confirm both measurements at the vehicle mounting position before installation, as factory openings and clearances vary by vehicle.

The SRX42V can be used as a direct replacement where a compatible 4-inch speaker fits, or as part of a broader speaker upgrade with matching front and rear speakers. It is sold as a pair and does not include grilles; optional grilles are sold separately. Match the speakers with a 4-ohm-compatible source or amplifier and set gains conservatively to support clean operation.

Key Features

• 4-Inch Coaxial Design: Combines woofer and tweeter in one compact speaker location.
• 30-Watt RMS Handling: Supports up to 30 watts RMS per speaker.
• Polypropylene Cone: Provides a durable woofer diaphragm for everyday vehicle use.
• PEI Dome Tweeter: Handles high-frequency detail within the coaxial assembly.
• Rubber Surround: Supports controlled cone movement and long-term durability.
• Slim Mounting Depth: Fits locations with only 1.7 inches of mounting depth.

Design & Installation

The SRX42V uses a polypropylene woofer cone, rubber surround, and PEI dome tweeter in a 2-way coaxial layout. Its 5.2-ounce magnet and 4-ohm nominal impedance support use in conventional car-audio speaker systems. The speakers are finished in black and gray, and grilles are not included.

Measure the factory opening, available mounting depth, and required 3.67-inch cutout before ordering. Connect each speaker with correct positive and negative polarity, and use vehicle-specific mounting adapters, wiring adapters, or hardware when required by the application. Optional grilles are available separately if the installation location needs speaker protection.