Robert Deutsch

When it comes to directivity in loudspeaker frequency response, the trend has been to make them less directional, both vertically and horizontally, so that the speakers would be less sensitive to seating position and allow more then one person to enjoy the same tonal balance. The new Copernicus II ($21,000/pair with powered subwoofers and digital equalization/phase correction) from Alltronics Technical Systems takes the opposite approach, going for maximum directionality/focus. The drivers form a vertical line source with a concave curve, the speakers being "aimed" at a seated listener. Not only that, but there's a motorized control moving the speaker up and down to match the exact height of the listener's ears when seated. These are what I'd call "bachelor’s speakers!" They are certainly not designed for listening by couples, but the upside is the the soundstage can be extremely precise and three-dimensional, and the sound itself was well-balanced and dynamic. Here’s designer Dennis Althar with his baby.

The Australian Ambience Reference 1800 ribbon hybrid loudspeakers ($13,995) use ribbons of their own design, combined with a vented bass section. The cabinet is sleek, with a narrowing toward the top. I quite enjoyed listening to these speakers, and, ever on the lookout for a cost-effective components, I was impressed by the fact that they were being driven by relatively inexpensive Vincent electronics (SAT-1 preamp, $1495, SAT-100 monoblock power amps, $2495/pair). Designer Tony Moore was on hand to demo the speakers.

In my opinion, the relation between speaker size and performance tends to be a curvilinear one: performance improves with size up to a point (assuming good design), but when speakers are really big they’re often disappointing, sounding merely "impressive" but not natural. I’m always delighted, therefore, to find an exception to this rule, and that was the case with the PBN Audio Montana Master Reference speakers at the outboarding THE Show at the San Tropez Resort. These speakers are 84" tall, weigh 500 lbs, and feature two 18” subwoofers, two 10" woofers, two 5.25" midrange units, and one 1.125" tweeter. Demoed by PBN President/Designer Peter Noerbaek and Vice-President Patty Noerbaek, these speakers, driven by PBN's own amplifiers, sounded impressive and natural. The price is $65,000/pair, but you do get a lot of speaker for the money. Peter Noerbaek says they sold four pairs last year—to people with baronial homes, I’m sure.

Convergent Audio Technologies' SL-1, in its various iterations, has been my reference preamp for some time. When the SL-1 Ultimate came out, I kidded designer Ken Stevens about the fact this designation implied that there was simply no way to improve it, so what was he going to do when—inevitably, in my view—he found ways to tweak the design? Well, sure enough, the SL-1 Ultimate is now the SL-1 Ultimate Mk.II, and Ken has a new preamp called the Legend, which is said to be even better. Improvements over the Ultimate Mk.II include a Teflon circuit board, Black Gate electrolytic capacitors, separate left and right volume controls, and a constrained-layer aluminum/steel bottom plate. An interesting feature is that the AV bypass works even without the preamp being turned on, saving tube life. The price is $15,995, which makes the $7995 for the Ultimate Mk.II seem like a positive bargain.