INFINITY SM-112 Stereo loudspeakers - $200 (Boulder)

condition: excellent

make / manufacturer: Infinity

model name / number: SM-112

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I have for sale a pair of vintage Infinity SM-112 stereo loudspeakers for sale. These sound amazing and are fully operational speakers. I recently downsized to a pair of smaller B&W speakers.

Description:

The Infinity SM-112 is a 3-way vintage loudspeaker by Infinity, featuring a 10-inch woofer, a 4.5-inch midrange, and a polycell tweeter. Designed to compete with high-efficiency rock speakers like Cerwin-Vega, they are known for playing very loudly with modest amplifier power.

*Cash, local, in-person transactions only. 6 hour guarantee on functionality of speakers. These are not currently hooked up to my stereo system.

post id: 7954223380

posted: 2026-08-17 17:51

updated: 2026-08-31 12:41

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INFINITY SM-112 Stereo loudspeakers - electronics - by owner - sale...

I have for sale a pair of vintage Infinity SM-112 stereo loudspeakers for sale. These sound amazing and are fully operational speakers. I recently downsized to a pair of smaller B&W speakers....