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EV, Dynacord, Telex & Corporate AV Solutions Provide Sound System Solutions for General Motors Heritage Center, Detroit, MI

March 29th, 2005

The center is filled with museum-quality vehicles from throughout GM’s history. Corporate AV’s Mike Bowers and Kent Culp worked closely with the GM site staff along with Telex Pro Audio Group Reps RP Sales throughout the specification process. The system is centered around EV loudspeakers, Telex wireless and a Dynacord ProAnnounce™ rack mixer, all controlled by AMX® touchscreen. Corporate AV’s Kent Culp described the installation:

“There are two zones of audio in the facility - one with six EV Sx100™s over the 100-ft wide main presentation platform, the other with twenty EV EVID™s distributed throughout the remainder of the complex. Two plasma screens provide the visuals in the main presentation area, with program and live audio via the Sx100s, which are mounted off a lighting truss and aimed towards the floor for controlled coverage. The twenty EVID 4.2s also provide the distributed audio for the tour guide’s wireless commentary. Two rolling racks house the Dynacord ProAnnounce 8x2 rack mixer, A/V source selection hardware and EV CPS™ amps. Switching and volume for the whole system is controlled by an AMX® touchscreen, via the DRM4000. For tours of the center, the guide rides on a Segway® using a Telex FMR500C wireless system with RE92TX lapel mic, for audio distribution via the EVIDs, which look as good as they sound in this space. The intelligibility throughout the facility is awesome, despite the hangar-like architecture - it’s an eight and a half second room, yet we’ve got things sounding crisp and clear in there. The system’s operational flexibility might suggest lots of complicated routing and interfaces, but it is in fact very straightforward and easy to use, especially with the AMX touchscreen control panel. The clients are very happy with the system’s performance, and we’re pleased to have made the space sound as impressive as the historic vehicles on display.“ (

EV, Dynacord & Telex Equipment List:

(1) Dynacord ProAnnounce™ DRM4000

(1) EV CPS2T™ amplifier

(2) EV CPS2™ amplifiers

(4) Telex FMR500C™ wireless with EV RE92TX unidirectional mic

(1) HT-500D handheld microphone transmitter with ND767a element

(1) PC-Sat 12 podium microphone

(6) SX100+W

(20) EVID 4.2TW - remainder, reception /lobby entrance.


Electro-Voice (EV), is a professional audio brand of Telex Communications, Inc., a leader in the design, manufacture and marketing of sophisticated audio, wireless, multimedia, aircraft, broadcast and communications equipment for commercial, professional and industrial customers. Telex Communications markets its products in more than 80 countries under the brands EV, Telex, RTS, Dynacord, Midas, Klark Teknik and others.

James Edlund

Public Relations Manager

Telex Communications, Inc.

12000 Portland Ave. South

Burnsville, MN 55337

Phone: 952-736-3901

Fax: 952-736-4582

Guy Low

Public Relations Producer

Telex Communications, Inc.

12000 Portland Ave. South

Burnsville, MN 55337

Phone: 952-736-3935

Fax: 952-736-4582