S90 basic-port

C20 Audiophile Top 25 of All Time AwardSound Image AwardS90i CE Pro Best Award Finalist

In-Wall (2×6) RTL Subwoofer

The S90’s highly efficient design yields fast, dynamic, articulate results with accurate timbre. This is a high-end subwoofer solution for customers who desire no-compromise performance, but prefer the aesthetic benefits of custom installed, hidden loudspeakers. The S90’s superb performance characteristics, which include flat response to 20 Hz with usable in-room energy down to 17 Hz, and outstanding dynamic capability and accurate timbre reproduction. Three versions are available: S90i (when an exposed grille is needed), S90 basic-port (when you are going to place it behind scrim cloth/acoustic fabric and you do not need a grille, and S90-f/c (when you need to extend the port of the S90 from the attic, craw space, or an adjacent room).

The Regenerative Transmission Line®

Regenerative Transmission Line® designs yielded the unique combination of high sensitivity, high output, and low distortion with the uniform and extended response we required. The result is extraordinary power and punch combined with a remarkable level of quickness, tunefulness and realism.

Key Features

In-wall (2×6) with grille
Regenerative Transmission Line® design

Highly Detailed & Dynamically Accurate
(2) Custom designed high-output long throw 5”x7” woofers

Three versions are available:
1 – S90i (when an exposed grille is needed)
2 – S90 basic-port (when you are going to place it behind scrim cloth/acoustic fabric and you do not need a grille
3 – S90-f/c (when you need to extend the port of the S90 from an attic, craw space, or an adjacent room

Flat frequency response across a 20Hz-80Hz operating range
(2) High operating woofers
DSP Required
(1) Channel of Power Amplification
Per subwoofer required

Specification

Frequency Response20Hz – 80 Hz ± 2dB relative to the target curve
Impedance4 ohms
Sensitivity93 dB / 2.83 V / 1m
Power Handling, Peak1000w
Maximum SPL123dB / 20Hz / 1m
Shipping Weight65 lbs. (30 kg)
Dimensions – HxWxD92.75” x 15.875” x 6.125” (235cm x 40.3cm x 15.5cm)

Resources

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S90 basic-port Owner’s Manual

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S90i Spec Sheet

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S90i Dimensions (PDF)

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S90i Dimensions (DWG)

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Optional S90i Port Extension Kit (PDF)

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Optional S90i Port Extension Kit (DWG)

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Optional Port Kit Installation Manual

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