Legendary Polk SDA II speakers with interconnect cable. Polk’s line of Stereo Dimension Array (SDA) speakers, which were designed to create a more natural stereo sound stage than is possible with conventional forward-facing speaker systems. The SDA technology involves combining two speaker systems in each cabinet of a mirror-image stereo pair. The inner one (nearest to the center of the room), called the “stereo array,” is a normal stereo speaker. The second system, known as the “dimensional array,” is located a few inches to the outside of the stereo array. Each dimensional array is driven by the stereo signal from the opposite speaker in the pair, and the frequency, phase, and amplitude characteristics of its output are modified so that when its sound reaches the ear of the listener, it cancels the sound arriving at that ear from the opposite speaker. The result, in the ideal case, is that each ear hears only the sound from its corresponding speaker, without the “interaural crosstalk,” and consequent spatial distortion, that would otherwise exist. Eliminating interaural crosstalk effectively removes the physical speakers as apparent sound sources. SDA-2 is a superb speaker regardless of its spatial characteristics. Im moving and cannot take them with me because of the size and weight.

Local pickup only!Cosmetically and functionally in fantastic condition, with no issues. Comes with interconnect cable and speaker cables. These sound wonderful! I no longer need them.One Caveat- I am going to Brooklyn, NY in 2 weeks so I could bring with me and deliver on the way. Will need to discuss!

Slightly used but in perfect condition from a non smoking home Enhance your home audio experience with these Polk Audio SDA Signature Reference System SRS 2.3 TL speakers. These wired front right and left speakers with rectangular shape are perfect for any room in your house. They are specifically designed for music lovers who appreciate high-quality sound. Pair them with your favorite music player and enjoy the rich, detailed sound that these speakers deliver. These speakers are suitable for those who seek an immersive audio experience.

Polk Audio SDA-1 12 Inch Passive Radiators SW12. Up for sale is a really nice pair of 12 Inch Passive-Radiators used in the SDA-1 along with 4 of the MW6511 Woofers.These have no ISSUES! and again are in really grate shape

Woofers were pulled from working SDA-1C speaker and are in very good condition and are working properly. Woofers were just treated with 303 protectant. Mounting screws included. Please see pictures for additional detail on condition and ohm readings for both speakers. Speakers will be well packed for shipping and will ship in individually in USPS medium size boxes Woofers sold individually - 2 available

Local pickup only! Cosmetically and functionally in fantastic condition, with no issues. Comes with interconnect cable. These sound wonderful! I need the space, so they need a new caring home. The last photo is specs off of hifiengine.com Local Pickup only!

This Polk Audio 1 Dome Tweeter is a great addition to your audio setup. It is compatible with POLK AUDIO #SL -2000 and is suitable for Polk Audio systems. The size is 1 and it is a high-quality tweeter that will enhance your audio experience. This tweeter is in mint condition and has been lightly used by its one owner. It is a great value for the price and will make a great addition to any audio setup. The brand is Polk Audio and it is compatible with other Polk Audio models like SDA RTA 8t 11t 15t.

This Polk Audio 1 Dome Tweeter is a great addition to your audio setup. It is compatible with POLK AUDIO #SL -2000 and is suitable for Polk Audio systems. The size is 1 and it is a high-quality tweeter that will enhance your audio experience. This tweeter is in mint condition and has been lightly used by its one owner. It is a great value for the price and will make a great addition to any audio setup. The brand is Polk Audio and it is compatible with other Polk Audio models like SDA RTA 8t 11t 15t.

Polk Audio OEM RD0198-1 SL3000 & SL2500 1 Tweeter for SDA, SRS, RTA Series NEW Condition!