Tom Norton

Tom Norton  |  Jan 15, 2012  |  2 comments
Take me to your leader. The 8T is the leader, or at least the first entry in a new line of speakers that's an offshoot of RBH. The four midrange drivers in the upper array have beryllium cones. The tweeter is a beryllium dome tweeter from Scan-Speak. At $50,000/pair, however, they're not for most of us, though the layout is vaguely similar to a B&W home theater speaker system from the late 1990s. The shape of the woofer enclosure here also suggests an intriguing configuration for a floor-mounted center channel speaker for use below a projection screen—though no center speaker is likely to match the 8T.
Tom Norton  |  Jan 15, 2012  |  0 comments
Fortunately, RBH does make speakers for the rest of us, I didn't get sufficient information on the model shown here, but it appears to be an update on the RBH 8300-SE which sells for $9700. That's hardly cheap, but not outrageous in today's high-end speaker marketplace.
Tom Norton  |  Jan 15, 2012  |  2 comments
This free-standing version of the Wisdom Audio LS4 is designed to be tri-amped, together with Wisdom's own electronic crossover. $100,000, and the customer must supply the six amplifier channels needed. As heard with Audio Research amps and a pair of Wisdom's own monster subwoofers, they did sound magnificent. The speakers can also be wall-mounted, and in fact Wisdom has often demonstrated its systems in the past in a home-theater setup, though the demo here was strictly 2-channel.
Tom Norton  |  Jan 15, 2012  |  0 comments
Wisdom launched several new in-wall speaker systems that would be well-suited to a home theater setting, particularly one using a perforated screen. The demoed units were the P4i ($1500 each) and L8i ($5000 each). While neither could match the sheer majesty of the Wisdom LS4s, both of them (with a smaller Wisdom subwoofer) provided sound of a quality I never thought possible from small in-walls,m with none of the usual in-wall colorations. One caveat here is that the temporary walls used in the demonstration may not be typical of real walls, either in the size of their internal cavities (the Insights do not use a backbox) or in rigidity and lack of resonances (the walls here appeared to be made of MDF, not the sheetrock of most residential construction).
Tom Norton  |  Jan 15, 2012  |  0 comments
I'm fascinated by the drive units manufacturers select or design for their speakers. Here and in the following entries I'll cover a few of them. Shown in the photo above are the midrange and tweeter in the new Aerial Acoustics 7. The midrange is made by SB Acoustics and the tweeter by Scan-speak, customized for Aerial.
Tom Norton  |  Jan 15, 2012  |  0 comments
Driver manufacturer SB Acoustics showed an array of their drivers, available both to manufacturers (either stock or custom) and DIY enthusiasts. Shown here is a new SB 8-inch woofer with an aluminum cone. It resembles (and may be) the woofer seen in some of the new Revel Performa line on display at the show and available in mid 2012.
Tom Norton  |  Jan 15, 2012  |  0 comments
Here are the beryllium cone drivers seen in the new, $50,000/pair 8T speakers from Status Acoustics and described elsewhere here.
Tom Norton  |  Jan 15, 2012  |  0 comments
GoldenEar uses these custom drivers in many of its speaker designs, including the air-motion tweeter.
Tom Norton  |  Jan 15, 2012  |  0 comments
There are specialty manufacturers that make various parts for loudspeaker drivers, and when ordering specialty drivers it is possible for a manufacturer of finished speakers to select the cone, surround, frame, voice-coil, etc. from various sources and have these parts assembled by a finished driver specialist. That's way it's possible to experiment with different configurations without the expense of fabricating the individual (very expensive) parts only to discard them if the results prove unsatisfactory.

That may or may not be how Wilson or any other specific manufacturer orders its custom drivers, only that it's possible. Note how the midrange driver used in the Sasha from Wilson Audio (and in variations in most of that company's newer speakers) at first glance resembles the driver from SEAS shown below. However, if you look closely the resemblance is mainly in the cone material, with significant differences in the dust cap, frame, surround, and presumably the internal structure as well.

Tom Norton  |  Jan 15, 2012  |  0 comments
This is the SEAS driver referenced in the posting above.

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