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IN
THE EARLY 1970s, VOLKSWAGON
RAN A TV AD IN WHICH TWO BEETLES
SAT SIDE BY SIDE: ONE FROM THE CURRENT YEAR'S CROP, THE OTHER THE
PREVIOUS YEAR'S MODEL. While viewers
sat dumbfounded, searching-on NTSC sets, no less-for even a single
visible difference, the announcer described some of the hundreds
of little changes that VW had incorporated into their new honey.
The same ad would work with Theta's original Casablanca and the
sequel presented here. Put on your coveralls, we're going under
the hood.
Unplugged, only the telltale buildup
of fingerprints on the front panel of my three-year-old reference
and the review unit's subtly silk-screened, dark-gray-on-silver
"II" distinguish the two Casablancas. After powering up,
a more significant difference appears-the II's display uses fluorescent
blue LEDs against a black background, while the original unit's
dull green lettering on an even duller green field is less visible
at any distance.
Once
I'd looked under the II's hood, however, the differences were so
obvious that it's easier to describe the new unit on its own terms
than continually drawing comparisons to the original, a sample of
which I'll wager few readers own anyway. At its high price, the
original Casablanca easily enforced its own exclusivity. The Casablanca
II continues that tradition and, should you opt for some of its
more ambitious configurations, even ups the ante.
Casablanca owners can update their units to II status
with a swap of innards. These upgrades are "affordable,"
by high-end standards, but there are too many possible options to
list here. Your Casablanca can be upgraded cosmetically as well,
although obviously you'll have to determine if changing the murky
green display panel to blue is worth $550 to you. I'd put my money
into more or better DACs-but I'm getting ahead of myself. There'll
be plenty of time to discuss financing ... er, Mr. Smith, was it?
The Dee Tells
The Theta Casablanca II is, essentially,
a very sophisticated computer: a few buttons on the front and eight
slots for plug-in cards in back. The first slot is for the power-supply
card and a master power switch. The front-panel On/Off switch powers
down most of the circuitry, but all hard reboots are done with the
rear Power switch. The power-supply card also has three programmable
12VDC trigger jacks to signal screens to drop or amps to power up.
Finally, a 9pin RS-232 interface and a second RS-232 on a RJ45 plug
are included to allow the Casablanca to be controlled by laptops
or Crestron-type remote units, for those inclined to complexity
for simplicity's sake.

You'll have to sit down with your
dealer to determine what goes in the other seven slots. Only one
style of analog input card is available, so your first decision
will be easy. That card has six stereo inputs, and contains two
stereo analog tape outputs for recording or feeding to a remote
system even in this digital age, there appears to be no shortage
of analog sources. I used all six of the available inputs, for my
satellite TV receiver, an FM tuner, the stereo output from my DVD
player (for playing 24bit/96kHz DVD recordings), a Sega Dreamcast
(R.I.P-after all the hype about the Sony PlayStation 2, Sega has
pulled the plug on this excellent game console), a VCR (for use
as an NTSC tuner only-honest!), and, by way of my Audio Research
SP14 preamp's phono stage, my glorious VPI/JMW/ Grado record player.
Theta includes two types of digital input cards, both
of which are standard. The first, which you'll definitely want,
has six coaxial (RCA) and two TosLink inputs, and can handle digital
signals from 16 to 24 bits at sampling rates of 32kHz, 44.1kHz,
48kHz, and 96kHz. Two coaxial digital outputs complete the standard
features of this card, though there are placeholders for two optional
AT&T or Theta's proprietary Single Mode Laserlinque optical
inputs. The second
digital card is primarily for owners of laserdisc
players and features two AC-3 RF
inputs for decoding LDs with Dolby Digital soundtracks. Completing
the card are some very uncommon-at least from a consumer's perspective-digital
inputs: an AES/EBU (balanced XLR style), and one with a BNC connection.
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