Polk Audio SDA SRS (Original) True Stereo Loudspeakers

Original (1985 version) Polk Audio SDA SRS loudspeakers with extensive updates and performance upgrades.  

These speakers weigh 182 pounds each and measure 63.5" H x 21" W x 13" D. Freight shipping will be at buyer's expense. I can deliver within a 200 mile radius of Baton Rouge, LA at a charge of $250. 
    
These speakers were lightly used as the front speakers in my home theater system. I have decided to move to smaller speakers in that system.  

The following upgrades and modifications were performed: 1. RD0194 silk dome tweeters, 2. Custom designed vibration braced crossover circuit board with premium Sonicap film capacitors, Mills MRA12 resistors, and Jantzen and North Creek inductors, 3. Cardas 15.5 AWG internal litz wiring, 4. Cardas 9.5 AWG SDA interconnect with Neutrik XLR connectors, 5. Steel driver rings and tweeter brackets for secure coupling to baffle, 6. Dynamat damping of driver baskets, 7. Armacell foam driver and tweeter gaskets, 8. Solid tiger maple end caps and side trim, 9. Cardas HCBP-S binding posts, 10. Upgraded, acoustically transparent grille cloth, 11. Black Hole 5 interior cabinet damping.

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