Changing To High Impedance - Toa SR-S4LEB-Q Operating Instructions Manual

9. CHANGING TO HIGH IMPEDANCE

The SR-S4 series speakers can be used for high-impedance applications with the installation of the optional
MT-S0601 or MT-200 Matching Transformer.
To install the MT-S0601 transformer, remove the blank panel
located on the speaker's rear panel.
For details regarding mounting procedures, refer to the instruc-
tion manual enclosed with the MT-S0601.
Note
The speaker cannot be used in combination with the matching
transformer when driven by a bi-amplifi er.
To change the tap, refer to the instruction manual enclosed with the MT-S0601.
Primary side impedance
83 Ω
170 Ω
330 Ω
670 Ω
The diagram below is an internal wiring when the matching transformer is installed.
Green
INPUT +
Black
INPUT –
Red
NC
White
NC
Speaker cord
10
High impedance 100 V line
Unusable
60 W
30 W
15 W
Matching Transformer
MT-S0601
SR-S4LEB-Q/S4SEB-Q
Rear panel
360W
LINE ARRAY SPEAKER
Corporation
TOA
IMPEDANCE
8 Ω
CONT. PGM. INPUT
RED N.C.
WHITE
N.C.
GREEN INPUT+
BLACK -
INPUT
High impedance 70 V line
60 W
30 W
15 W
7.5 W
Passive
network
Blank panel
(Remove the 4 screws
indicated by arrows.)
Woofers
x 4
Tweeters
x 4