Electrovoice 205-4t Brochure

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A 30-watt heavy-duty convertible driver designed
for use with compound diffraction horns. Designed
for general public address applications, the 1828T
includes a built-in transformer with selectable power
taps at 0.5, 1, 2, 4, 8, 15, 30 watts to accommodate 
25- and 70.7-volt lines.Weather-resistant for outdoor or
indoor use, dual 1-inch screw-on exit, wide frequency
response. Comes with threaded plug to convert to
conventional driver.
Same as 1828T except without transformer,
8-ohm impedance.
1828C
A 60-watt heavy-duty convertible driver designed for use with
compound diffraction horns. Designed for general public address
applications, the 1829BT includes a built-in transformer with 
selectable power taps at 8, 15, 30 and 60 watts to accommodate
70.7-volt lines.Weather-resistant for outdoor or indoor use, dual 
1-inch screw-on exits, wide frequency response. Comes with
threaded plug to convert to conventional driver.
Compatible Horns
Cobreflex IIB
Cobreflex III
FC100
Specifications
1828C/1828T
1829BT
Power Handling (500 Hz-5 kHz pink noise)
30 watts
60 watts
Frequency Response
260 Hz-10 kHz, ±5 dB
280 Hz-8 kHz, ±5 dB
Sensitivity (1 W, 1 m, 500 Hz-5 kHz 
105 dB SPL
105 dB SPL
pink noise, Cobreflex III horn)
(*on FC100)
(*on FC100)
Nominal Impedance
8 ohms
16 ohms
Dimensions, in. (cm)
3.3 dia. x 4.0 depth
5.3 dia. x 4.1 depth
(8.4 dia. x 10.2 depth)
(13.5 dia. x 10.4 depth)
Net Weight
4.7 lb. (2.1 kg)
7 lb. (3.2 kg)
1828T: 5 lb. (2.3 kg)
1829T: 9.8 lb. (4.4 kg)
1829BT   
60-watt driver for compound diffraction projector
1828T   
30-watt driver for compound diffraction projector
C
OMPRESSION
D
RIVERS
Compatible Horns
Cobreflex IIB
Cobreflex III
FC100
EVID
Systems
Hor
ns and Drivers
Paging Mics
Pr
oAnnounce
System Examples
Ceiling Speakers
Amplifiers
Surface Mount Speakers