Nov 5, 2006 · The RS-4.5 comes with an accessory black box—a speaker control center which serves the dual purpose of electronic crossover and equalizer. A front-panel switch selects either mode of operation (while a rear-panel one enables the entire unit to be bypassed, although the input buffer stage remains in-circuit).

The Audi RS 4 is the high-performance variant of the Audi A4 range produced by Audi Sport GmbH for AUDI AG, a division of the Volkswagen Group. It sits above the Audi S4 as the fastest, most sports-focused car based on the A4's "B" automobile platform.

The RS4 gets an innovative FSI direct fuel injection 4.2-liter, 420-hp V8 engine that hits 0-60 in 4.7 seconds. The FSI purportedly improves engine power and fuel economy at the same time.

Description: Three-way sealed-box loudspeaker system with active Bi-Channel crossover/equalizer for connection between preamp and power amp (s); Drive-units: two 12" Watkins, dual-voice-coil woofers, four EMIM (electromagnetic-induction-midrange) units and four EMIT ribbon tweeters (one rear-facing) Crossover frequencies: 150Hz, 5kHz (lower cro...

Jul 9, 2020 · Infinity RS4.5 Restoration - Should I Stay or Should I go? Picked up a pair of bodged up RS4.5 through a mutual friend clearing a deceased estate. At present I have not committed to buying these before thoroughly inspecting. For starters the …

Description: Three-way sealed-box loudspeaker system with active Bi-Channel crossover/equalizer for connection between preamp and power amp (s); Drive-units: two 12" Watkins, dual–voice-coil woofers, four EMIM (electromagnetic-induction-midrange) units and four EMIT ribbon tweeters (one rear-facing) Crossover frequencies: 150Hz, 5kHz (lower cros...

Mar 30, 2011 · Hello, An infinity RS 4.5 comes up for sale in my area - asking for $2500. I think the price is way too high, even given that this kind is rare and seldom coming up for sale. Anyone can give an idea on what price is reasonable? Thanks

Dec 1, 2020 · Product: Infinity RS-4.5 Vintage Floorstanding Speakers; Oak Pair; RS4-5; Restored - Rare. Product SKU: 26797. Serial Number: 7307580, 7307581. Cosmetic Description: 7/10 Very good cosmetic condition with some minor visible cosmetic wear including deterioration of the foam baffle pieces.

Jun 2, 2010 · The first area of concern to me is the RS4.5's EMIM circuit. There are four EMIMs in series-parallel for a total impedance of something like 3.3 Ohms, and if you figure the mid-point on the midrange adjustment pot that climbs to 4.3 Ohms.

Nowhere was this more evident than in the RS-4.5 line. Despite only producing something like 300 sets of 4.5s, here are various examples of custom or modified RS-4.5s.