Infinity Quantum 5
Hard to believe until you hear it - and even then; that a moderately-sized speaker at a most reasonable price can house the most advanced high-and low-frequency drivers (plus a high-definition midrange dome) and set them free to operate in all their realism.
That's the beauty of the Quantum 5 by Infinity.
Our superlative EMIT and the revolutionary Infinity -Watkins Dual-Drive Woofer are vital ingredients of our formidable Quantum reference Standard speaker-and-equalization system priced at several thousand dollars.
Now the Quantum 5 - at a small fraction of the cost of the Quantum Reference Standard - has an EMIT and a dual-voice coil woofer of its own. And a sound that would be a revelation from any size speaker, at any price.
IN a woofer, two voice-coils are better than one. In performance, our dual-voice-coil woofer is better than any other.
Impossible combination: good transient response, sufficient power, acceptable efficiency, and extended bass range - all from an enclosure of reasonable size.
Now Infinity brings you Wiliams Watkin's ingenious solution to problems of a speaker's fundamental resonance, back-EMF, and the resultant impedance peak.
The Infinity-Watkins Dual-Drive Woofer, available only in Infinity's Quantum Series speakers, works like this.
In the frequency range where rising impedance and falling response were considered inevitable, a second voice coil takes over. In the region of resonance, it presents a low impedance path to the amplifier.
Now back-EMF is reduced, so the speaker can make use of the amplifier's power at low frequencies. Now it isn't inherent resonance but input that controls the cone. Now extended bass response co-exists beautifully with accurate transient performance. Now the superb bass reproduction of the dual-voice-coil woofer is yours in a reasonably priced compact speaker, Infinity's marvelous Quantum 5.
Is this any way to treat a revolutionary woofer?
In our top-of-the-industry Quantum Reference Standard, the Watkins is the Oscar Peterson of woofers; it can loaf, and still out-perform the rest of the world. It is responsible for response only from its phenomenal floor of 18 Hz to an easy 100 Hz/
As used in the three-way Quantum 5, the revolutionary woofer handles a frequency range from 30 through 600 Hz. So we give the cone a special treatment to increase greatly its stiffness-to-mass ratio. This damping treatment eliminates a variety of circumferential modes and resonances that blur the bass and muddy the midbass in ordinary speakers. Low-frequency reproduction from the Quantum 5 is exciting in its combination of clarity with power. In the vital midrange, Quantum 5 uses Infinity's high-definition dome driver. It is exceptionally accurate in its range from 600 to 4000 Hz. And from 4000 Hz up - far up.
The superlative, soaring EMIT - clearly superior to domes and cones. And electrostatics.
In theory, the magnetic counter-part of the electrostatic tweeter would be just as clean, accurate, and high-ranging as the electrostatic - and trouble-free besides.
In fact, our exclusive EMIT with its magnets of the rare-earth substance Samarium Cobalt, the most powerful magnetic material on earth, is all of that and more.
The EMIT exhibits nearly perfect horizontal dispersion - clearly superior to electrostatics' narrow beaming of high frequencies. And EMIT, more than either electrostatics or conventional dome drivers, is capable of reproducing every transient peak, every fortissimo as accurately as every subtely in the most demanding recording. Listen.
IN scientific measurements and, more important, in listening tests, EMIT stays smooth as high as your ears can follow. beyond that, they keep going right up to 32,000 Hz. Infinity invented the Electromagnetic Induction Tweeter. And only Infinity offers you its advantages. It's standout technological advance and it blends beautifully with the midrange dome and Watkins woofer - thanks to Infinity's meticulous attention to crossover technology and phasing.
The resulting output of a Pair of Quantum 5 speakers has an almost pictorial depth. You place each musician or section front or rear, as well as left or right, as naturally as at a concert.
Specifications
Frequency Response: 38 through 32,000 Hz ±3 db
Horizontal Dispersion: -2 dB 60° left and Right (20 kHz)
Suggested for use with amp. or receivers of: 30 Watts to 250 watts per channel RMS
Nominal Impedance: 4 Ω
Drivers
LF : 300 mm (12") Infinity-Watkins Dual-Drive Woofer
MR: 38 mm (1-1/2") high-definition dome midrange
HF: EMIT tweeter
Crossover Frequencies: 600 Hz and 4,000 Hz
Level Controls: Midrange and Tweeters
Dimensions (H x W x D): 670 x 380 x 300 mm (26-1/2" x 15" x 12")
Weight (packed): 25 kg (55 lbs)
Finish: Oiled walnut veneer or particle board;
Grille: Black cloth removable grille.
