【17cm Coaxial 2-Way Speaker TS-C1740 for Tuning Rear Slide Door Sound】

The sound from the rear slide door seems muffled, and in the back seat it’s hard to make out vocals and instrument details. If you’re dealing with issues like these, consider the Custom Fit Speaker TS-C1740.

A coaxial 2-way speaker for the rear slide door, combining a 17cm woofer with a φ29mm balanced dome tweeter. It reproduces sound with well-balanced clarity from low to high frequencies, naturally bringing out vocal contours and fine instrument nuances.

With the “Open & Smooth” concept—designed to express not only sound but also its lingering presence and reflected sounds—the system is engineered so the audio doesn’t feel like it’s coming from just one spot. Instead, it aims for a cohesive sound that spreads throughout the cabin. Of course, you can enjoy music during drives, and vocals and melodies also become easier to reach for passengers in the rear seats.

The woofer uses a two-layer aramid fiber cone designed with water resistance in mind. The tweeter is a balanced dome tweeter equipped with an aluminum alloy diaphragm. By replacing the factory speakers, you may notice changes in sound information and clarity, but the actual result will vary depending on the vehicle model, the stock system, and the installation method.

Speakers aren’t something where the sound is determined just by choosing a product. It’s important to confirm the rear slide door structure and mounting space, as well as how it differs from the factory speakers, and—if necessary—to consider including the base and even the door-side treatments. Even with the same speaker, how it sounds changes depending on the installation condition and the balance with the entire interior.

At LOGON, we discuss whether to replace only the speakers or to tune things further—including front-side and door treatments—while asking about your vehicle model, the music you typically listen to, and whether you prioritize the front or the rear seats. If you’d like to make the rear sound a bit more solid, or if you want to improve overall listening comfort in a family car, please start by consulting us about the approach that best suits your vehicle.

Main Specifications / Specs

【Basic Information】
Product name: Custom Fit Speaker TS-C1740
Type: 17cm coaxial 2-way speaker
Intended use: For rear slide doors

【Woofer】
Type: Water-resistant speaker
Cone: Two-layer aramid fiber cone
Surround/Edge: Corrugated edge
Magnet: Strontium magnet
Magnet weight: 330g

【Tweeter】
Type: φ29mm balanced dome tweeter
Diaphragm: Aluminum alloy diaphragm
Surround/Edge: Polyurethane-coated edge
Voice coil: Special heat-resistant voice coil
Magnetic circuit: Uses magnetic fluid
Magnet: Neodymium magnet
Magnet weight: 3g

【Performance】
Impedance: 4Ω
Sensitivity (SPL): 91dB
Reproducing frequency range: 33Hz–64,000Hz
Max power input (instantaneous): 180W
Rated power input: 50W

【Weight】
Weight (including accessories, 1 piece): 1.09kg
Total weight (including packaging materials, 2 pieces): 2.50kg

Because mounting methods and required parts vary by vehicle model, we guide you with accurate fit and installation details by checking the actual vehicle. Let’s tune the entire cabin so it’s easy and enjoyable to listen to—including the sound from the rear slide doors.