Infinity Quadrapole QPS 1 Speakers, work and sound good.
Key Specifications:
Type: Quadrapole Surround Speakers
Drivers: Four 3-inch paper cone drivers with cloth surrounds
Power Range: 10-80 Watts (or 10-100W in some listings)
Impedance: 8 Ohms (minimum 5.5 Ohms)
Sensitivity: 88 dB (2.83v/1M)
Frequency Response: 80 Hz - 20 kHz
Max Output: 108 dB (SPL on program)
Enclosure: Plastic, front-ported
Connections: 5-way binding posts
Dimensions (per speaker): ~8.5" H x 11" W x 4.5" D
Weight (per pair): ~12 lbs.