How to Connect for Mono Parallel
How to Connect for Mono Parallel
1.Connect cables from the Balanced Output of a McIn- tosh Preamplifier or Control Center to the MC275 Right Balanced Input.
Note: An optional hookup is to use unbalanced cables.
2.Prepare the Loudspeaker Hookup Cable and Jumper Wires for connection to the Power Amplifier Output Terminals; two
Bare wire cable ends:
Carefully remove sufficient insulation from the cable ends, refer to figures 1, 2 & 3. If the cable is stranded, carefully twist the strands together as tightly as pos-
sible.
Note: If desired, the twisted ends can be tinned with solder to keep the strands together.
Spade lug or prepared wire connection:
Insert the spade lug connector or prepared section of the cable end under the terminal strip screw and tighten the screw until the cable is firmly clamped into the ter-
minal strip so the
wires can- not slip
out. Refer to figures 4, 5 & 6.
3.Connect the hookup cables to the output terminals that match the connections in the chart below, being careful to observe the correct
polarities. Output im- pedance connections
4ohm Loudspeaker
Jumper Cables
of 2S (ohm), 4S (ohm) and 8S (ohm) are provided. If the Loudspeaker’s impedance is
4.Place the MC275 POWER Switch to the OFF Position and connect the supplied power cord to an active AC outlet.
5.Refer to page 13 for the correct settings of the MODE and INPUT Switches.
Mono (Parallel) Hookup Connections
Loudspeaker | Loudspeaker Negative | Loudspeaker Positive | |
Impedance | (+) Connection | ||
|
|
| |
2S (Ohm) | Left and Right Output 4S | Left and Right Output 4S | |
Negative (- ) Connection | Positive (+ ) Connection | ||
| |||
|
|
| |
4S (Ohm) | Left and Right Output 8S | Left and Right Output 8S | |
Negative (- ) Connection | Positive (+ ) Connection | ||
| |||
|
|
| |
8S (Ohm) | Left and Right Output 16S | Left and Right Output 16S | |
Negative (- ) Connection | Positive (+) Connection | ||
| |||
|
|
|
McIntosh Preamplifier
Refer to page 13 for the correct switch settings
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