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Amazon.com: DS18 PRO-X4M Loudspeaker - 4", Midrange, Red Steel Basket, 200W Max, 100W RMS, 8 Ohms - Premium Quality Audio Door Speakers for Car or Truck Stereo Sound System (1 Speaker), Classic : Electronics
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Amazon.com: Eminence American Standard Alpha-4-8 (Pair) 4" Pro Audio Speakers, 55 Watts at 8 Ohms : Musical Instruments
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