Stand Loudspeaker Reviews

Everything sounds like what it's made of.

I'm known for saying that, and to me, it's obvious: box speakers with dome tweeters sound like box speakers with dome tweeters. I can hear their tweeters calling to me when I'm in the next room, making a phone call. I can hear their boxes hissing and groaning even after I turn off the stereo. Many a day, I think Edgar Villchur, inventor of the acoustic-suspension loudspeaker and the dome tweeter, ruined audio, and that audiophiles will never stop denying how artificially colored the sounds of domes and cones in boxes really are.

Everyone wants something different from a loudspeaker. Some people value midrange neutrality above all, while others will sacrifice some of that accuracy to get extended lows or a speaker that will play immensely loud with only a few watts of power. Some want stereo imaging that is sufficiently delicate, stable, and accurate that the speakers open a transparent window on the recording's original performing space. Some will sacrifice all of the above to get a speaker whose "jump factor" can jerk zombies out of their stupor. And there are those who are prepared to lose just a little bit of everything in order to have a speaker that may not excel in any of these areas, but communicates what they want from their music in the most effective overall manner.

What Were Once Vices Are Now Habits—the 1974 album by those San Jose yacht-rock sages the Doobie Brothers—could also describe an audiophile's life.

The journey begins with booze and bong money spent instead on an entry-level turntable and cartridge; it did for me anyway. Then starts the churn, through many components and configurations seeking that elusive, blissful audio fix until finally we find our audio oasis, our own sonic peace, our gearhead nirvana. We achieve a system that satisfies our listening indulgences, whether it be based on streaming or spinning, class-D or tubes, with Belden wire or 0.999999% pure-silver single-strand wire that costs more than a Range Rover. It doesn't last.

You can bet Infinity plans on selling a respectable number of $8000/pair Prelude MTS speakers (reviewed in the May 2000 Stereophile) over this ambitious, full-range design's anticipated lifespan. But will the company make enough money to recoup the megabucks spent on researching, designing, and developing the all-new CMMD (Ceramic Metal Matrix Diaphragm) drivers, BASH (Bridge Amplifier Switching Hybrid) powered subwoofer, and RABOS (Room Adaptive Bass Optimization System) bass-equalization system? NOWAY (Never Over-Estimate What Acronyms Yield).

It was 20 years ago that I began audio reviewing as a second career. It was also 20 years ago that I made my first very expensive audio purchase: a pair of Infinity RS-1b speakers. The RS-1b was a landmark speaker in its day, and very costly for the time at $5500/pair. (I think my dentist has just spent more than that on a TV.) In retrospect, the RS-1b was an extraordinary value. With four large towers, more than 30 drivers, and a servo network and a passive crossover, the Infinity RS-1b resolved a significant amount of detail, was capable of large dynamic swings, had pinpoint image specificity on a wide, deep soundstage, and was capable of reproducing a convincing bottom octave in the right room when paired with the right associated equipment. Its main weaknesses were a relative lack of coherence due to its use of three different types of drivers to cover the various frequency ranges, and both the midrange/tweeter towers and woofer columns were picky about amplifier matching.

Introduced in 1985 as the smallest model in JBL's "Ti" range, the 18Ti ($590/pair) shares with its larger siblings, like the JBL 250ti (recently reviewed by J. Gordon Holt), a high-tech tweeter that uses a one-piece ribbed titanium-foil dome/surround just 25µm thick. This is both rigid and of very low mass, pushing its first-breakup mode up to the region of 30kHz. The tweeter is mounted above the polypropylene-cone woofer, offset a little to one side to make room for the 45mm diameter port (though the speakers are not supplied as a handed pair). The 10-liter internal volume box is well-constructed from 20mm chipboard, covered in real-wood veneer.