Toa SR-PP4 - Manual (Page 10)

10
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 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
instruction manual enclosed with the MT-S0601.
Note
The speaker cannot be used in combination with the matching
transformer when driven by a bi-amplifier.
To change the tap, refer to the instruction manual enclosed with the MT-S0601.
The diagram below is an internal wiring when the matching transformer is installed.
LINE ARRAY SPEAKER Corporation TOA
IMPEDANCE
R E D N.C.
N.C. WHITE
GREEN INPUT+
INPUT- BLACK
8 Ω CONT. PGM. INPUT 360W
Blank panel
(Remove the 4 screws
indicated by arrows.)
Primary side impedance High impedance 100 V line High impedance 70 V line
83 Ω Unusable 60 W
170 Ω 60 W 30 W
330 Ω 30 W 15 W
670 Ω 15 W 7.5 W
Speaker cord
INPUT +
INPUT –
NC
NC
Green
Black
Red
White
Passive
network
Matching Transformer
MT-S0601
x 4
x 4
Tweeters
Woofers