How To Connect For A Five Channel And Zone B Sys; Tem (Or Seven Channel System) - McIntosh MC8207 Owner's Manual

How to Connect for a Five Channel and
Zone B System
Caution: Do not connect the AC Power Cord to the
MC8207 Rear Panel until after the Loudspeaker
Connections are made and the protective Termi-
nal Connections Cover is installed. Failure to
observe this could result in Electric Shock.
The connection instructions below, together with the
MC8207 Connection Diagram located on the separate
folded sheet "Mc1B". Below is an example of a typical
Five Channel and Zone B System. Your system may
vary from this, however the actual components would
be connected in a similar manner. For additional in-
formation refer to "Connector and Cable Information"
on page 4.
1. For Remote Power Control, connect a power
control cable from the A/V Control Center Power
Control Trigger/Output 1 to the Amplifier POWER
CONTROL ZA In. Also connect a power control
cable from the A/V Control Center Power Control
Trigger/Output 2 to the Amplifier POWER CON-
TROL ZB In.
Notes: 1. When the Power Control Cable is con-
nected between the MC8207 Power Control
ZA In Jack and an A/V Control Center, the
AUTO OFF Signal Sensing Circuitry is
automatically disabled.
2. For proper operation of Zone B, a Power
Control Connection is required between the
MC8207 Power Control ZB In Jack and an
A/V Control Center Power Control Zone B
Output Jack.
2. Connect XLR cables from the Balanced Outputs
(FL, C, FR, SR, SL, SBR and SBL) of an A/V
Control Center to the MC8207 Balanced INPUTS
(1-FL, 3-C, 7-FR, 6-SR and 2-SL), making sure to
match up channel designations.
10
3. Connect audio cables from the A/V Control Center
Zone B Left and Right Channel Outputs to the
MC8207 Unbalanced L(4-SBL) and R(5-SBR),
making sure to match up channel designation.
Note: If the A/V Control Center Zone B Left and
Right Channel Ouputs are Balanced Connec-
tors, then use XLR Cables and connect them
to the Balanced Inputs 4-SBL for the Left
Channel and 5-SBR for the Right Channel.
This McIntosh MC8207 Power Amplifier is designed
for Loudspeakers with an impedance of 4 ohms or
8 ohms. Connect a single Loudspeaker only to each
Channel Output Terminals.
When connecting Loudspeakers to the MC8207
it is very important to use cables of adequate size, so
there is little to no power loss in the cables. The size is
specified in Gauge Numbers or AWG (American Wire
Gauge). The smaller the Gauge number, the larger the
wire size:
Loudspeaker Cable Distance vs Wire Gauge Guide
25 feet 50 feet
Loudspeaker
(7.62 meters) (15.24 meters)
Impedance
or less or less
12AWG 10AWG
2 Ohms
4 Ohms 14AWG 12AWG
8 Ohms 16AWG 14AWG
4. Prepare the Loudspeaker Hookup Cable for attach-
ment to the MC8207 Power Amplifier:
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 possible.
Notes: 1. If desired, the twisted ends can be tinned
with solder to keep the strands together.
2. The prepared bare wire cable ends may be
inserted into spade lug connectors.
3. Banana plugs are for use in the United
States and Canada only.
Banana Plugs are for use in the United States and
Canada only:
5. Attach the previously prepared bare wire cable
ends into the banana plugs and secure the connec-
tions. Refer to figure 4.
6. Referring to figure 5, connect the
Loudspeaker hookup cables with
banana plugs into the hole at the end
of the MC8207 Negative and Positive
100 feet
Output Terminals, making sure to
(30.48 meters)
match up channel designation with
or less
Loudspeaker location.
8AWG
7. Place the IMPEDANCE Switch to the
10AWG
position (4 ohm or 8 ohm) to match
12AWG
the impedance of the connected Loudspeakers.
In the event that some of the Loudspeakers in the
system are different impedance, use the imped-
ance of the Front Loudspeakers. If the Loud-
speaker's impedance is 6 ohms, select the 4 ohms
setting. Refer to "General Information" Note 4 on
page 3 for additional information.
Figure 1 Figure 2 Figure 3
Figure 4
Figure 5