Cerwin-Vega H683 6x8" 3-Way Coaxial Speakers

The Cerwin-Vega H683 is a pair of 6x8-inch, 3-way coaxial full-range car speakers designed for factory-location speaker upgrades. It combines a woofer, midrange, and tweeter in each speaker to provide broad frequency coverage from a single mounting position. This makes it a practical option for vehicles that use the common 6x8-inch speaker format.

Each H683 uses a 6x8-inch polypropylene woofer, a 2.5-inch midrange, and a 1-inch PEI tweeter. The multi-driver coaxial layout is intended to reproduce bass, vocal-range detail, and high frequencies without requiring separate component-speaker mounting locations. Its published frequency response is 87 Hz to 20 kHz.

The polypropylene woofer cone is paired with a UV-treated foam surround for a durable moving assembly. A strontium ferrite woofer magnet supports the low- and mid-frequency section, while the PEI tweeter uses a neodymium magnet motor structure. This combination is built around the needs of everyday in-car listening and replacement-speaker installations.

An integrated crossover directs frequencies between the speaker elements and includes tweeter protection. That design helps the 1-inch balanced PEI tweeter handle high-frequency content as part of the coaxial assembly. The H683 has a 4-ohm nominal impedance and 87 dB sensitivity at 1 watt/1 meter.

Sold as a pair, the H683 can be used with a compatible factory radio or an aftermarket amplifier that supports 4-ohm speakers. Its 2.28-inch mounting depth and 5 x 7.09-inch cutout requirement should be checked against the vehicle's available mounting space before installation. It is suited to listeners replacing worn factory 6x8-inch speakers while retaining a straightforward full-range speaker layout.

Key Features

• 3-Way Coaxial Layout: Integrates woofer, midrange, and tweeter in each speaker.
• 6x8-Inch Woofer: Fits applications designed for 6x8-inch speakers.
• Polypropylene Cone: Provides the woofer's primary sound-radiating surface.
• UV-Treated Foam Surround: Supports cone movement with UV-treated material.
• 1-Inch PEI Tweeter: Handles the high-frequency portion of the audio range.
• Integrated Tweeter Protection: Adds protection within the built-in crossover network.

Design & Installation

The H683 uses powder-coated rigid stamped-steel baskets, polypropylene woofer cones, UV-treated foam surrounds, and ferrite woofer magnets. Its coaxial structure places the 2.5-inch midrange and 1-inch dynamically balanced PEI tweeter over the woofer. The pair is finished in black and red and does not include speaker grilles.

Confirm that the vehicle accepts a 6x8-inch speaker, has a 5 x 7.09-inch mounting cutout, and provides at least 2.28 inches of mounting depth. Connect the speakers with correct polarity to a 4-ohm-compatible head unit or amplifier. Mounting hardware and vehicle-specific adapters are not identified in the available product documentation, so verify required installation parts before purchase.