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The Legendary ? Infinity IRS V

Does anyone know anything about these speakers, their current market value or sound quality compared to more recent statement loudspeakers?

I remember hearing them once years ago at Lyric hi fi in New York, driven by gigantic Jadis tube monoblocks, a Goldmund turntable and reading in TAS that they were the holy grail of high end audio.

I am sure not too many were made but I cant recall seeing any for sale.

Was this speaker a real high end classic or just overhyped?
cwlondon

Showing 1 response by bright_star_audio

bright_star_audio
179 posts
 
I have a set of Infinity IRS series III that have been VERY heavily modified and rebuilt from the ground up - new, much more intense cabinets, extra servo amps, Series V EMIT tweeters (modified) and Series V EMIM diaphragms (modified), Magnaplaner Tymapni III-B mid-bass panels (modified) added into the diffraction wings, and on and on...

The EMIMs in the IRS Series I, II & III operated from a little over 100 Hz to 5,000 Hz. The Series V (there was no Series IV) operated up to 6,000 Hz due to a lighter diaphragm. IMHO the EMIMs are not terribly comfortable operating down to 100 Hz which is why I added the Maggies and now have the EMIMs starting at 225 Hz. EVERYTHING about the EMIM's performance has been significantly improved because of this. I have applied compliant ceramic to selected portions of the EMIM diaphragm which also aids in reducing resonances and improving transparency. In addition, I have introduced another damping material into the hollowed areas behind the front and rear ABS faceplates which also significantly reduces sonic problems.

For a number of years I offered modifications to EMIMs and EMITs for owners of the IRS, RS-1 series and RS-2 series speakers.

Best,

Barry
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