Theatre Design & Technology - Summer 1984 - 33

which adjust decay time, pre-delay, and separate high and low frequency decay curves.
Despite its sophistication, the StarGate 323
claims to be "user-friendly"; digital readouts
on the front panel show decay time, pre-delay,
and room, while eight LEDs monitor signal
level. There is also an input level control, an
input-mute, reverb-clear and dry-only buttons,
each of which can be operated by foot pedals.
The unit features a 15Hz bandwid h which is
evident even at the longest decay times and a
dynamic range of 80 dB. For further information, write Ursa Major, Inc., P.O. Box 18, Belmont, MA 02178.

General Electric Introduces New Large
Screen Video Projection
General Electric Company's Projection Display
Products Operation has added a new, less expensive color projector, PJ4500, to its Talaria
line of television projectors. Picture size with
the Talaria PJ4500 is recommended for screen
sizes from 4 to 8 feet wide for front or rear projection. Overall geometric distortion of the projected image is less than 1.5% with a standard
(3: 1) projection lens. Single gun, single raster,
single optical path simultaneous color display
is inherently registered at all times.
The PJ4500 projector provides 250 lumen
minimum modulated light output, sufficient for
high brightness and resolution in most applicaions. The large area contrast ratio is typically
100 to 1 (minimum 75 to 1) when measured in
negligible ambient light. Maximum input power
required for the PJ4500 projector is 900 watts
and 1350 volt amperes. An NTSC decoder is
provided for signal processing. The projector
accepts all standard NTSC video signals. including videotapes, live TV and computergenerated data.
A data sheet on the Talaria PJ4500 Television Projector may be obtained by writing Projection Display Products Operation, General
Electric Company, Electronics Park, 6-206,
Syracuse, NY 13221.

We Built Our Reputation In
Wireless Audio. Now ... the
HME Cabled Intercom!
Now that HME has
proven itself the technical
and performance leader
in the challenging wireless
audio field, we've brought
our expertise to the
cabled intercom user.
The products shown
here are available now,
with more being introduced soon. Let's face
it ... after designing the
finest in professional wireless devices, this product
line was a snap!

* Unique Soft Compressian ... minimizes distortion at high sound
levels.
* Tailored Audio Response
. . . Better intelligibility,
less ear fatigue.
* Automatic protection
from shorted cables.
continues to operate, resets automatically when
corrected.

* Proven Road-Rugged
Design.
* Compatible with other
cabled intercoms and
the HME wireless
intercom.

HM ElECTRONICS, INC.
6151 Fairmount Ave.
San Diego, CA 92120
Phone (619) 280-6050
Telex: 697-122

700 Series

~ Cabled Intercom Systems

Delta Omega H1 2000 Information
"Loop" from Crown
Crown International announces the Delta
Omegan. 2000, a power amplifier designed to
effect a significant reduction in eifectlve radiated distortion in a speaker sircuit (cable,
cross-over, voice coil). The Delta Omega incorporates a velOCity-control system at the
amp/speaker Interface in which the speaker
eloclty informs the amp. while the amp conrols the velOCity. This Information "loop" ensures a constant monitoring and balance of
speaker output. The Delta Omega CIrcuit IS
sensitive to both reactive and resistive components of the speaker function. which allows
the amp to know where the wave- form discrepancies are and to apply the precise compensaIon needed to achieve real-world. near·perfec
reproduction. For further Informalion. write
Crown International. 1718 West Mishawaka
Road, Elkhart, IN 46517.

LYCIAN
.....··WCII.··dI:···¢·ct
A high performance follow spot light incomparable in overall excellence of
performance and price. Lycian SuperArc 350. Lycian Stage Lighting,
Kings Highway, P.O. Box D, Sugar Loaf, .Y. 10981 (914) 469-2285

SITT /Summer 198-l/Theatre Design & Technology

Table of Contents for the Digital Edition of Theatre Design & Technology - Summer 1984