MM2TC TELEX COMMUNICATIONS, MM2TC Datasheet

25W Submergence-Proof Speaker

MM2TC

Manufacturer Part Number
MM2TC
Description
25W Submergence-Proof Speaker
Manufacturer
TELEX COMMUNICATIONS
Datasheet
1.MM2TC.pdf (4 pages)

Specifications of MM2TC

Body Material
Diecast Aluminum
Sound Pressure Level at 1 Meter, 1 Watt
from 800-5,000 Hz:
Vertical Beamwidth:
Directivity Factor R,
Usable Low-Frequency Limit:
Construction:
Voice-Coil Diameter:
Magnet Weight:
Magnet Material:
Dimensions,
Net Weight:
Shipping Weight:
Frequency Response:
Power Handling,
Impedance:
Input Average, Pink Noise Band-Limited
Horizontal Beamwidth:
SPECIFICATIONS
transformer housing. Diaphragm is
Alnico V
Width:
4.0 kg (8.8 Ib)
4.5 kg (10.0 Ib)
800-5,000 HZ f 5 dB
(see Figure 3)
8 Hours, 6-dB Crest Factor:
82O
82O
600 Hz
Rugged die-cast aluminum case and
phenolic impregnated linen-base. All metal
speaker parts are of anodized aluminum
with baked-on acrylic paint. A cable
entrance is provided on the bottom side
5.1 cm (2.0 in.)
0.93 kg (2.1 Ib) with plates
Height:
Depth:
16 ohms
104 dB
10.25
25 watts (500-5,000 Hz pink noise)
25.4 cm (10.0 in.)
16.4 cm (6.4 in.)
1 1.3 cm (4.4 in.)
@
@
@
2 kHz (see Figure 2)
2 kHz (see Figure 2)
2 kHz
(a):
The MM2TC is self-draining and designed to withstand fungus, dust, salt spray, live steam, and
The University Sound MM2TC is aconservatively rated 25-watt "submergence-proof'' speaker
designed for wall, ceiling, or bulkhead mounting.
The driver employs a diaphragm with a phenolic impregnated linen-base and 2.0-inch voice coil
with "W" shaped Alnico V magnet structure.
Provisions are made in the housing for installation of a matching transformer such as the
University Sound model 5030 (30 W).
The voice-coil/diaphragm assembly is protected by a special anit-fungicide treatment and is
easily accessible for cleaning by removal of the die-cast reflector on the front of the speaker.
gases. It is built to penetrate high noise levels in boiler rooms, mines, railroads, etc.
DESCRIPTION

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MM2TC Summary of contents

Page 1

... The voice-coil/diaphragm assembly is protected by a special anit-fungicide treatment and is easily accessible for cleaning by removal of the die-cast reflector on the front of the speaker. The MM2TC is self-draining and designed to withstand fungus, dust, salt spray, live steam, and gases built to penetrate high noise levels in boiler rooms, mines, railroads, etc. ...

Page 2

...

Page 3

... Figure 3 shows the axial frequency response of the MM2TC. It was measured at a distance of 1 meter, using a swept sine wave. INSTALLATION Mounting of the MM2TC is by way of two holes spaced 5.688” on centers. 13/32’’ A cable entrance threaded for l/z”-14 I.P.S. pipe or rigid conduit is provided in the bot- tom side of its cork-neoprene gasketed transformer housing ...

Page 4

BASIC GUIDELINES FOR THE USE OF HORNS AND DRIVERS WITHIN A SOUND SYSTEM. DESIGNING FOR INTELLIGIBILITY AND ADEQUATE SPL The Basic Idea Many sound systems would have better performance principles are kept in mind Speakers with the appropriatecoverage patterns should ...

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