Audioplex MS-12 Manuale di installazione - Pagina 2

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SPEAKER L
R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+ R+ R- L- L+
MS-12
SPK 12
MS-10
When purchased, this system is built in and self powered. It is a handy aid in choosing the best settings of
the impedance matching rotary switch. A red and green light indicator on the front panel shows a constant indication
of operating status. The amplifier is 4 Ohms or higher when the green lamp is lit, below 4 Ohms if the red is on. If
red, simply rotate the matching switch CCW until the indication turns green, and you are operating within safe
parameters.
This indicator system is useful for maintaining maximum power transfer to the speakers in actual use. If this
is desired, rotate the matching control clockwise until the red lamp comes on, then back off one position at a time
until the green lamp lights. You will then be matched as closely as safely possible to 4 Ohms at the amplifier output,
which is the maximum power transfer for the speakers in operation.
Note that this system derives its power from the left channel only, although impedance is measured on both
channels. Also note that the red-green light indicating system is self-powered and may flicker somewhat, especially if
the driving amplifier is operating at very low power. Approximately 1 W att minimum is required to light up the
system. When closely matched, the green indication may occasionally change to brief red flashes. This is due to the
non-linear impedance characteristics of most speakers and need not be cause for concern. If the duration of red is
longer than the green, the impedance selector switch should be backed off one position or more until the green
indication predominates.
WIRING DIAGRAM
Note: INPUT connector block is green
OUTPUT connector blocks are black
SPEAKER K
SPEAKER J
SPEAKER I
SPEAKER H
SPK 11
SPK 10
SPK 9
SPK 8
SPK 10
SPK 9
SPK 8
SPK 7
MS-8
SPK 8
SPK 7
SPK 6
MS-6
SPK 6
SPK 5
OPTIONAL IMPEDANCE INDICATING SYSTEM
SPEAKER G
SPEAKER F
SPEAKER E
SPEAKER D
SPK 7
SPK 6
SPK 5
SPK 4
SPK 6
SPK 5
SPK 4
SPK 3
SPK5
SPK 4
SPK 3
SPK 2
SPK 4
SPK 3
SPK 2
SPK 1
SPEAKER C
SPEAKER B
SPEAKER A
IN FROM AMP
R+ R- L- L+
SPK 3
SPK 2
SPK 1
SPK 2
SPK 1
SPK 1
R+ R- L- L+
1999 - 4/29/99