Polk Audio SDA SRS 2.3TL (1980s–1990s)
A 10-driver loudspeaker system from Polk’s flagship SDA-SRS series, using crosstalk cancellation for enhanced stereo imaging.
Overview
The Polk Audio SDA SRS 2.3TL is a large floor-standing loudspeaker system developed as part of Polk's flagship SDA-SRS series in the 1980s. It features a 10-driver configuration with one sub bass radiator, two woofers, and four mid-woofers. The system relies on Polk’s Stereo Dimensional Array (SDA) technology, which uses crosstalk cancellation to create a more immersive and spatially accurate soundstage. Each speaker must be connected to its counterpart via a dedicated SDA cable to enable the crosstalk cancellation function. Though exact production years are not confirmed, the model was released during the 1980s–1990s era of high-end home audio.
Specifications
| Type | 10-driver loudspeaker system |
| Drivers | Sub bass radiator x1; Woofers x2; Mid-woofers x4 |
| Technology | Stereo/dimensional array |
| Dimensions - Length | 20.63" |
| Dimensions - Depth | 13 1/8" |
| Dimensions - Height | 55.4" |
| Included | SDA cable for connecting the two speakers together |
Design
The SDA SRS 2.3TL implements Polk’s Stereo Dimensional Array (SDA) technology, which uses crosstalk cancellation to reduce interaural interference and improve stereo imaging. As part of the SDA-SRS series, it features an elaborate driver array with multiple mid-woofers and dedicated radiating elements to enhance spatial performance. The system requires an SDA cable to link the left and right speakers, enabling the crosstalk cancellation circuitry.
Reception
Some listeners consider the SDA SRS 2.3TL among the best-sounding Polk speakers ever made, often comparing them favorably to the SRS 2 models. One owner noted hearing previously unnoticed details in recordings after extended listening. While one listener felt “something was lacking” in a particular pairing, the general sentiment among enthusiasts is strong, with recommendations to acquire a set if possible.
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