Rockford Fosgate T3652-S 6.5" 2-Way Component Speakers

The Rockford Fosgate T3652-S is a 6.5-inch, 2-way component speaker system for upgrading a vehicle's front-stage sound with separately mounted woofers and tweeters. Its component layout allows the tweeters to be positioned higher in the cabin than the woofers, helping create a more focused presentation than a coaxial speaker installation. The system is rated for 125 watts RMS and uses a 4-ohm nominal impedance.

This set is intended for listeners building a detailed, amplified car audio system rather than simply replacing a damaged factory speaker. The 6.5-inch woofers handle the midbass and lower midrange range, while the 1-inch tweeters reproduce higher frequencies through the included passive crossover network. A 40 Hz to 30 kHz frequency-response rating gives the system broad stated bandwidth for use with a subwoofer or as part of a full-range upgrade.

The woofers use woven Liquid Crystal Polymer fiber cones, butyl-rubber VAST surrounds, linear Nomex spiders, and high-excursion neodymium motor assemblies. Their die-cast aluminum frames provide a rigid mounting foundation, while an integrated shorting ring and external heat sinking are used on the woofer motor structure. The 1.5-inch high-temperature aluminum voice-coil former is designed to support the system's rated power handling.

A dedicated external crossover divides the signal at 3 kHz with an 18 dB-per-octave high-pass section and a 12 dB-per-octave low-pass section. It includes selectable tweeter output settings of +2 dB, 0 dB, and -2 dB, allowing installers to tailor the high-frequency balance for the tweeter location. The crossover also provides selectable on-axis or off-axis operation and a selectable bi-amp configuration.

The T3652-S is well suited to custom door, kick-panel, or pillar-based installations where tweeter placement can be planned carefully. Its 5.67-inch mounting diameter and 2.79-inch woofer mounting depth should be checked against the vehicle before installation. Grilles, woofer mounting hardware, and flush or surface/angled tweeter mounting hardware are included for a more complete component-system installation.

Key Features

• 6.5-Inch Component System: Separates woofer and tweeter placement for a more flexible front-stage installation.
• 125-Watt RMS Rating: Supports use with an appropriately matched external amplifier.
• Woven LCP Woofer Cone: Uses a rigid Liquid Crystal Polymer fiber cone for midbass reproduction.
• Selectable Passive Crossover: Provides 3 kHz filtering, tweeter-level adjustment, and bi-amp selection.
• Neodymium Motor System: Combines high-excursion motor design with matched woofer suspension.
• Flexible Tweeter Mounting: Includes DDC mounting plus flush and angled surface-mount hardware.

Design & Installation

The T3652-S uses die-cast aluminum woofer frames with FlexFit mounting slots, woven LCP cones, butyl-rubber VAST surrounds, Nomex spiders, and neodymium motor structures. The 1-inch tweeters use LCP domes with treated silk surrounds and are supported by the DDC tweeter mounting system. Woofer grilles and mounting hardware are supplied with the system.

Plan the woofer location around the 5.67-inch cutout and 2.79-inch mounting-depth requirements, then choose a flush or angled surface location for each tweeter. Connect the woofers and tweeters through the supplied crossover, observing speaker polarity, and use the crossover's level and axis settings to suit the physical tweeter placement. For amplified installations, Rockford Fosgate specifies 37.5 to 125 watts RMS of recommended amplifier power.