OSD Audio MTR-250 - Manual

INT R O DU C T IO N:
F E AT U R E :
S P E C IF IC AT IO NS :
1 2 3
4 5 6 7
POWER OUT SELECT
RMS 250W
70V 100V
(20Ω) (40Ω)
COM
100V-70V / OUT SIGNAL IN STEREO / OUT
70V/100 Line Matching Transformer
MTR -2 5 0 The MTR-250 70V/100V Line Matching Transformer Combiner enables the conversion from an 8 Ohm
amplifier output to a 70V/100V. This unit is ideal for both professional stage or PA applications which
require running multiple pairs of speakers to a single amplifier.
Rugged 1U Metal Chassis
Internal Constant Voltage Transformers
Extensive Short Circuit & Overload Protection
Signal In LED Indicator
70V/100V Mono Power Output, RMS 250W
Frequency (-1dB): 20Hz-20kHz
Stereo Output 85W Per Channel Into 8 Ohm Loads
Signal In LED Indicator.
Stereo Out LED Indicator.
70V/100V Out LED Indicator
70V/100V Mono Speaker Output.
Power Out Select. Left = 8 Ohm Output. Right = 70V/100V Output.
8 Ohm Stereo Speaker Output.
AMP Stereo In. Maximum Capacity 85W per channel at 8 Ohm. For bridge connection, connect amplifier’s
“+” to the “L+” screw terminal connector and connect “-“ to the “R+” screw terminal connector. Maximum
power handling for bridge connection is 250W.
1.
2.
3.
4.
5.
6.
7.
POWER OUT SELECT
RMS 500W
70V 100V
(10Ω) (20Ω)
COM
BRIDGE
RMS 8Ω
170W 170W 500W
L - R+ - R
POWER IN
L+
RMS 8Ω 170W × 2
L+ L - R+ - R
POWER OUT SELECT
RMS 500W
70V 100V
(10Ω) (20Ω)
COM
BRIDGE
RMS 8Ω
170W 170W 500W
L - R+ - R
POWER IN
L+
RMS 8Ω 170W × 2
L+ L - R+ - R
85W 8OHM SPEAKES X 2
170W 8 OHM 500W 8 OHM 170W 8 OHM
RM 5 CH AMP
70 00 P E A K E R S
250W
170W 8 OHM 500W 8 OHM 170W 8 OHM
R M 5 CH AMP
Constant-voltage output mode, connect the amplifier in bridge mode, put the “POWER OUT SELECT” to
the right, then connect 70V/100V in wall/ in ceiling speakers to the “70V/100V MONO OUTPUT” in series,
the total power of speaker should be below 250W
Fixed resistance output mode, connect the amplifier in stereo mode, put the “POWER OUT
SELECT” to the left, connect 2 8ohm speakers to the “8 Ohm Stereo Output” as above.
OSD Audio • 775 Columbia St • Brea • CA • 92821 • www.osdaudio.com • Tel (888) 779-4968 • Fax (714) 256-8300
S
MTR-250 USER MANUAL
7 0 V / 1 0 0 V L i n e M at c h i n g T r a n s f o r m e r C o m b i n e r
BRIDGE
RMS 8Ω
85W 85W 250W
L - R+ - R
POWER IN
L+
RMS 8Ω 85W × 2
L+ L - R+ - R