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The Infinity IRS Gamma / Delta — Vintage Titans with Ribbons & Rumble. These aren’t just speakers—they’re audio monuments. The Infinity IRS Delta / Gamma are towering, ribbon-loaded legends from the golden era of high-end hi-fi. Built in the 1980s under the wizardry of Arnie Nudell, these are the kind of speakers that make jaws drop, amps sweat, and listeners forget to blink.

Professionally restored by Aural HiFi in Denver Colorado.

*There is a bit of discoloration (pictured) on one of the side cabinets that we were unable to remove. But as the cabinets are angled backwards, it's definitely not something that is noticeable from the listening position.

Includes original factory boxes.

S/N:G000466 / G000467

New bi-polar electrolytic crossover capacitors - 9 per speaker
Replaced broken cement wirewound resistor in one speaker
Re-glued loose components, as needed
Verified all wiring and connections
Reconed all 4 woofers
New DIN cables for Servo Control Unit

Infinity

Infinity IRS Delta Gamma // Vintage / Reference Speakers / With Servo Control / Recapped & Reconed