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Audio-Visual

Great Hall Sound System
The Great Hall sound system provides uniform sound reinforcement to all seating areas of the hall and balconies. This is accomplished with a permanently installed, full-range, 4-way central loudspeaker cluster suspended over the Great Hall's stage, and 32 time-delayed recessed loudspeakers distributed under the hall's side balconies. Also, concealed in the ceiling over the rear balcony, are three time-delayed high frequency horns to improve coverage in the rear balcony seating area.

The central cluster:
JBL 4645 18" subwoofer cabinet (concealed at the top of the pipe organ)
Three JBL 4646 low frequency cabinets with JBL 2206 12" drivers
Six JBL 2380 bi-radial high frequency horns with JBL 2450 drivers
Four JBL 2404 super tweeters.

The loudspeakers are driven by:
8-CTS-600 and 1-CTS1200 Crown power amplifiers (total rated power of 6000 watts) The sound system can produce undistorted peak sound levels of over 100 decibels throughout the hall and adjustable safety limiters are employed.

Four EAW-UB52 front-fill stage edge loudspeakers are driven by a Crown CT-400 amplifier with separate equalization and time delay.

The sound system's acoustical frequency response has been carefully measured and averaged, and using 1/3 octave equalizers, adjusted for nearly flat frequency response over the system's operating range of 40Hz to 16,000Hz. Average level at any seat does not vary more than 4dB from 40Hz to 8000Hz, thus assuring uniform coverage at any seat in the hall.

Output from the Great Hall can be monitored from backstage, the dressing rooms, Washburn Hall and Boyden Salon.

Allen & Heath GL2400-24 mixing control board for simultaneously mixing up to 24 microphones and providing phantom power to each input.

Four separate mixes for stage monitors is provided at the console and can be pre- or post-fader.

Eight stage monitor speakers are powered by four separate 300 watt amplifiers. These include:
6 EV Force 1 12" slant-type monitors
4 (four) Galaxy "hot-spot" monitors.

Four 1/3 octave equalizers can be patched for monitor equalization.

18 built-in microphone receptacles on the stage are connected to the sound system rack and can be patched into the mixing board.

Available Microphones:
Shure
SM-58's
SM-57's
SM-81's
SM-85
SM-87
6 ULX wireless systems:
6 hand-held or 6 body-pack lavaliere microphones
Electro-Voice
RE-16's
RE-18
RE-20's
Sennheiser MD-421's
AKG C-414B-TL II

Great Hall
Complete facilities for showing video and power-point presentations from a projection booth at the rear of the Hall. The Great Hall is enclosed within the building and has no interference from outdoor light. An experienced audio-visual technician is available in-house to set up and operate the Hall's equipment.

Equipment:
• Sanyo 12,000 lumen LCD data/video projector
• 20' x 20' ceiling mounted projection screen. Motorized winches are remote controlled from the control booth. To adjust the screen height and size to match the picture.
• Control booth has ample counter space and electrical outlets and a clear view of stage and screen. Sound and lighting controls are located in the control booth. All lighting is on dimmers.
• 40” and 32" LCD flat screenTV monitors on rolling carts
• DVD recorders and players
• Portable 60" x 60" screen
• Flip charts and easels
• Laser pointer and wireless remote control for Powerpoint presentations
• Intercom headsets
• Wireless lavaliere and hand-held microphones
• Follow spotlights
• Video cameras and video and audio teleconferencing facilities
• Video and audio taping facilities
• I-Mag, and closed circuit TV transmission to TV monitors in other rooms
• Wired and wireless high-speed internet connections
• Private telephone lines
• Wireless LED uplights, pinsports and GOBO projection fixtures/

Washburn Hall
Washburn Hall is equipped for showing video and power-point presentations. An experienced audio-visual technician is available in-house to set up and operate the Hall's equipment.

Equipment:

• 10' x 10' retractable projection screen and 14’ by 8’ front projection screen
• 3000 lumen short-throw LCD data/video projector
• Cables, carts and wireless remote control for Powerpoint presentations
• Permanent distributed sound system for up to 12 microphones on inputs
• Background music system (MUSAK)
• CD playback
• Wireless microphones (4 to 4 handheld or lavalier)
• All Washburn Hall lighting is controlled by dimmers
• Wired and wireless high-speed internet access
• Private telephone lines
• Up to 16 wireless LED uplights for custom wall-wash colors

Mechanics Hall • 321 Main Street, Worcester, MA 01608 • Info: 508-752-5608 • Tickets: 508-752-0888