Infinity SM-122 (1980s–1990s)
A floor-standing studio monitor from Infinity’s SM series, featuring EMIT tweeters and polypropylene woofers.
Overview
The Infinity SM-122 is a floor-standing loudspeaker from the Infinity SM (Studio Monitor) Series, produced during the 1980s–1990s. It was designed as a passive, three-way system intended to deliver high-fidelity audio performance at a more accessible price point. The speaker is part of a lineup that brought Infinity’s EMIT tweeter technology and polypropylene woofers to mainstream consumers, offering a taste of the brand’s studio monitor heritage in a home audio format.
Specifications
| Type | Floor-standing speaker |
| Product family | Infinity SM (Studio Monitor) Series |
| Woofer | 12" large motor woofer |
| Midrange | 5 1/4" midrange driver |
| Original price | $1299 per pair (1990 MSRP) |
Context
The Infinity SM series, including the SM-122, was positioned as an affordable entry into Infinity’s studio monitor line, offering core technologies like EMIT tweeters and polypropylene woofers at prices often under $300 a pair in later years. These speakers were marketed to deliver professional-grade sound quality for home use, fitting into the 1980s–1990s trend of bringing studio monitor design to consumer audio.
Market
The SM-122 has developed a modest collector following, with pairs occasionally listed around $400. Owners have reported interest in driver replacements and cabinet modifications, indicating that maintenance and restoration are common considerations for long-term ownership. Spare parts, including 12" woofers, are available through third-party vendors.
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