40W RMS Mylar Dome Tweeter Kit Flush, Surface, and Angle Mounting. Integrated Crossover Included.

Product Overview

The Rockford Fosgate Prime R1T-S is a pair of 1/2" (13mm) Mylar® balanced dome tweeters rated at 40W RMS a dedicated tweeter kit for component speaker system builds and factory speaker upgrade installations where an additional high-frequency driver is required independently of the woofer. The kit includes integrated high-pass crossovers and hardware for three mounting configurations: flush, surface, and angle.

The Mylar® dome produces a lightweight, high-sensitivity diaphragm with smooth extended frequency response for accurate high-frequency reproduction. Multiple mounting options provide flexibility for custom installations flush mounting for a clean integrated look, surface mounting for direct panel attachment, and angle mounting for optimising the tweeter's dispersion direction toward the listening position.

Key Specifications

• Tweeter size: 1/2" (13mm) — confirmed in description and features
• Dome material: Mylar® balanced dome
• Power handling (RMS): 40W per tweeter (confirmed)
• Peak power: Not specified — confirm with Rockford Fosgate
• Impedance: Not specified — confirm with Rockford Fosgate
• Sensitivity: Not specified — confirm with Rockford Fosgate
• Frequency response: Not specified — confirm with Rockford Fosgate
• Mounting configurations: Flush, surface, and angle
• Crossover: Integrated high-pass crossover (included)
• Sold as: Pair (confirmed in title)
• Warranty: Not specified — confirm with Rockford Fosgate

Features & Benefits

• Mylar® Dome Diaphragm — Mylar (polyester film) is a lightweight, rigid material that allows the tweeter diaphragm to move quickly and accurately across the high-frequency range. Mylar domes are known for their high sensitivity and extended treble response — producing a bright, detailed high-frequency character well-suited to component speaker system builds where the tweeter is positioned independently for optimal dispersion.
• 40W RMS Power Handling — Rated at 40W RMS per tweeter — providing sufficient headroom for use with the Rockford Fosgate Prime series 4-channel amplifiers and higher-powered component speaker system builds.
• Integrated High-Pass Crossover — An integrated high-pass crossover is included in the kit, filtering the correct frequency range to the tweeter and protecting it from low-frequency content that could cause damage. No separate crossover component purchase is required.
• Three Mounting Configurations — Flush, Surface, and Angle — The kit includes hardware for three distinct mounting approaches:
  • Flush mount: The tweeter is recessed into the mounting surface for a clean, factory-look integration
  • Surface mount: The tweeter mounts directly on top of the panel surface — fastest installation, no panel cutting required
  • Angle mount: The tweeter is angled toward the listening position — useful for optimising dispersion when the mounting surface is not ideally positioned
• Dedicated High-Frequency Driver — As a dedicated tweeter system (not combined with a woofer), the R1T-S can be precisely positioned and angled independent of the woofer location — enabling the optimal stereo imaging and soundstage placement not possible with coaxial (all-in-one) speaker designs.
• Sold as a Pair — Two tweeters per kit — covering both left and right channels of a stereo installation.

Technical Specs

Compatible With / Goes Well With

Suitable applications:

• Component speaker system builds requiring a dedicated tweeter
• Factory speaker upgrade installations where a separate tweeter is being added to existing woofer positions
• Custom door panel, A-pillar, or dash installations for improved soundstage and imaging
• Pairing with 6.5", 6.75", or 6"×9" woofers for a 2-way component system

Pairs well with:

• Rockford Fosgate Prime full-range woofers (or dedicated woofers in a component build)
• Rockford Fosgate T400-4, T600-4, or T1000-4AD 4-channel amplifiers
• An active or passive crossover network for full component system builds

Frequently Asked Questions

What is the correct tweeter size — 1" or 1/2"?

The supplier description and features list both confirm 1/2" (13mm). The product title's "1"" is likely a display formatting error where the fraction "1/2"" was truncated. Confirm the exact tweeter diameter with Rockford Fosgate before publishing or purchasing, and correct the Shopify product title accordingly.

What is a Mylar dome tweeter and how does it compare to silk dome?

A Mylar dome uses polyester film (Mylar® is DuPont's registered trademark) as the diaphragm material. Mylar is lightweight and rigid — producing high sensitivity and extended high-frequency reach with a bright, detailed character. Silk dome tweeters (used in the R14X2, R169X2, and other 2-way Prime speakers) use a softer material producing a warmer, more relaxed high-frequency character. Mylar suits detailed, forward-sounding systems; silk dome suits warmer, less fatiguing long-listening builds.

What mounting options are available with the R1T-S?

The kit includes hardware for flush mount (recessed into the panel), surface mount (attached directly to the panel surface), and angle mount (angled toward the listening position). All three options are included in a single kit — no separate hardware purchase is required for any configuration.

Is a woofer included with the R1T-S?

No. The R1T-S is a dedicated tweeter kit only. A compatible woofer must be sourced separately to complete a 2-way component speaker system. The integrated crossover in the R1T-S kit handles the high-pass filtering for the tweeter — a separate woofer-side crossover or the crossover included with a component speaker kit handles the woofer.

What crossover does the R1T-S kit include?

An integrated high-pass crossover is included, filtering the appropriate frequency band to the tweeter. Crossover slope (dB/octave) and crossover point (Hz) are not confirmed in the supplier data — pull the official Rockford Fosgate R1T-S datasheet for the specific crossover specification.