LOUDSPEAKERS LINE OUT
Low impedance
High impedance
The loudspeakers line out is effected by means of a transformer that has
low impedance outputs (4 – 8 – 16 Ohms) and high impedance outputs
(50 – 70 – 100V).
The connection must be made between terminal “0” and the terminal
corresponding to the appropriate impedance or voltage.
One of these three outputs will be used when the loudspeakers do not have a line transformer, and it will be
selected in such a way that the loudspeaker line impedance is the same as the impedance of the amplifi er
output contact.
When working with the 50, 70 and 100V lines, it should be remembered that:
The loudspeakers to be connected must have a line transformer.
The total connected power will be the sum of the power absorbed by the loudspeakers and this must be
between 50% below and 20% above the rated power of the amplifi er.
The power absorbed by a loudspeaker with a transformer is indicated on its terminals. This power is on the
100V line. If the transformer is connected to the 70V line, it will absorb half the indicated power, and if it is
connected to the 50V line, it will absorb a quarter of this power. A 30W transformer will absorb 15W if it is
connected to the 70V line and 7.5W if it is connected to the 50V line.
O U T P U T S
0
50V 70V 100V
4Ω 8Ω 16Ω
SURETY PAGING
8
Figure 3
0
0
0
0
0
0
0
0
0
0
0
0
C
C
C
C
B
B
B
B
50V.
50V.
50V.
50V.
70V.
70V.
70V.
70V.
A
A
A
A
100V.
100V.
100V.
100V.
A. Total input power 60W. Power absorbed by each 10W transformer = 10W
B. Total input power 60W. Power absorbed by each 10W transformer = 5W
C. Total input power 60W. Power absorbed by each 10W transformer = 2.5W
A. Total input power 120W. Power absorbed by each 20W transformer = 20W
B. Total input power 120W. Power absorbed by each 20W transformer = 10W
C. Total input power 120W. Power absorbed by each 20W transformer = 5W
A. Total input power 240W. Power absorbed by each 40W transformer = 40W
B. Total input power 240W. Power absorbed by each 40W transformer = 20W
C. Total input power 240W. Power absorbed by each 40W transformer = 10W
A. Total input power 360W. Power absorbed by each 60W transformer = 60W
B. Total input power 360W. Power absorbed by each 60W transformer = 30W
C. Total input power 360W. Power absorbed by each 60W transformer = 15W
10W
40W
20W
60W
10W
40W
20W
60W
10W
40W
20W
60W
T1
T1
T1
T1
T1
T1
T1
T1
T1
T1
T1
T1
10W
40W
20W
60W
2.5W
10W
5W
15W
5W
20W
10W
30W
10W
40W
20W
60W
10W
40W
20W
60W
10W
40W
20W
60W
10W
40W
20W
60W
2.5W
10W
5W
15W
5W
20W
10W
30W
UP-66
UP-246
UP-126
UP-366
T2
T2
T2
T2
T2
T2
T2
T2
T2
T2
T2
T2
10W
40W
20W
60W
10W
40W
20W
60W
10W
40W
20W
60W
T23
T23
T23
T23
T11
T11
T11
T11
T5
T5
T5
T5
10W
40W
20W
60W
2.5W
10W
5W
15W
5W
20W
10W
30W
2.5W
10W
5W
15W
5W
20W
10W
30W
10W
40W
20W
60W
10W
40W
20W
60W
10W
40W
20W
60W
10W
40W
20W
60W
T24
T24
T24
T24
T12
T12
T12
T12
T6
T6
T6
T6
E N G L I S H
AMPLIFIERS UP-366, UP-246, UP-126 and UP-66
Eng
1 6
UP-366, UP-246, UP-126 and UP-66
Version 1.1
