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For sale: Polk Polk Audio SDA Non-Common Ground Amplifier Interface and Infinity tweeter/midranges


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What title says:

1. Polk Audio SDA Non-Common Ground Amplifier Interface.
Original owner put the umbilical cord (pin-blade) into the wall behind huge wall unit so it was impossible to get it without breaking the wall. So the cable is cut . About a foot on one side and couple feet on the other.

$125 shipped anywhere in Con US OBO


2. Infinity Polycell High Output Tweeter 902-4270
Fits Sm-112 and other Infinity speakers.
Tested and works great.

$20 shipped UPS


3. Infinity 902-4315 5" Midrange Pair

Fits SM-112 and maybe others

Both work and look good.


$40 shipped  UPS Ground

Infinity midrange 902-4315 202 TNI.jpg

Infinity polycell 902-4270_ 301TND_1.jpg

Polk Audio SDA Non-Common Ground Amplifier Interface.jpg

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