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ESB Audio ESB Audio 9.1T-28 Ring — 9.1T-28 CNC Mounting Ring (pair) | HF Audio — Accessories photo
ESB Audio · Accessories

ESB Audio 9.1T-28 Ring — 9.1T-28 CNC Mounting Ring (pair) | HF Audio

CNC-machined aluminum mounting ring for 9.1T-28 tweeter flush install.

Built for the Passionate. Engineered for the Road. The ESB 9.1T-28 CNC Mounting Ring is a precision-machined aluminum accessory designed for flush-mount installation of the 9.1T-28 tweeter. At the 9000 Series level, the quality of the mechanical installation matters — an imprecise mount introduces vibration paths that degrade the acoustic performance of even the finest tweeter. Machined from aluminum billet, the ring provides a rigid, resonance-free mounting surface with a precise fit tolerance matched to the 9.1T-28 tweeter housing. The flush-mount profile integrates cleanly into custom A-pillar pods, CNC-milled baffles, and precision fabricated door panels. Sold as a pair. Required accessory for any 9000 Series installation where aesthetics and mechanical precision are as important as acoustic performance — which, at this level, they always are.

SQ
Size
1.1"
$499.99

Our actual price is below the manufacturer's advertised minimum — final price is shown in cart.

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  • Free US shipping
  • Manufacturer warranty

SKU: ESB-ACC-91T28RING-PAIR

Overview

Built for the install, not the spec sheet

Built for the Passionate. Engineered for the Road. The ESB 9.1T-28 CNC Mounting Ring is a precision-machined aluminum accessory designed for flush-mount installation of the 9.1T-28 tweeter. At the 9000 Series level, the quality of the mechanical installation matters — an imprecise mount introduces vibration paths that degrade the acoustic performance of even the finest tweeter.

Machined from aluminum billet, the ring provides a rigid, resonance-free mounting surface with a precise fit tolerance matched to the 9.1T-28 tweeter housing. The flush-mount profile integrates cleanly into custom A-pillar pods, CNC-milled baffles, and precision fabricated door panels.

Sold as a pair. Required accessory for any 9000 Series installation where aesthetics and mechanical precision are as important as acoustic performance — which, at this level, they always are.

Specifications

Measured, not marketed

Electrical

ConfigurationAccessory — CNC Mounting Ring

Physical

Compatible9.1T-28
MaterialCNC-machined aluminum
Sold asPair
Documents

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Designed For

Which build is this for?

SQ

Sound Quality

Detail, staging and tonal accuracy.

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Complete the System

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