Owner`s manual

10
How to Connect for Bi-Amp
This McIntosh MC601 Quad Balanced Power Ampli-
fier is designed for Loudspeakers with an impedance
of 2 ohms, 4 ohms or 8 ohms. Connect a single Loud-
speaker only to the Output Terminals.
When connecting Loudspeakers to the MC601 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
Loudspeaker
Impedance
25 feet
(7.62 meters)
or less
50 feet
(15.24 meters)
or less
100 feet
(30.48 meters)
or less
2 Ohms
12AWG 10AWG 8AWG
4 Ohms
14AWG 12AWG 10AWG
8 Ohms
16AWG 14AWG 12AWG
6. Prepare the Loudspeaker Hookup Cable for attach-
ment to the MC601 Power Amplifier:
Bare wire cable ends:
Carefully remove sufficient insulation from the
cable ends, refer to figures 2, 3 & 4. 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.
1. For Remote Power Control, connect a power control
cable from the Audio Preamplifier or A/V Control
Center Power Control Output 1 to Amplifier One
POWER CONTROL IN.
2. Connect a power control cable from Amplifier One
Power Control OUTput 1 to Amplifier Two POW-
ER CONTROL IN.
3. Connect XLR cables from the Balanced Output 1
(R, refer to note 2 below) of an Audio Preamplifier
or A/V Control Center to Amplifier BALanced IN-
put. Place the INPUT MODE Switch in the BAL-
anced Position.
Notes: 1. An optional hookup is to use unbalanced
cable and place the INPUT MODE Switch in
the UNBALanced Position.
2. When multiple MC601s are used in a Stereo
or Multichannel System, match up the
Preamplifier or A/V Control Center Chan-
nel Output designation to each MC601 with
Loudspeaker and the Loudspeaker location
in the room.
4. Connect XLR cables from Amplifier One Audio
BALanced OUTput to Amplifier Two BALanced
INput.
5. Using a suitable tool remove the two screws from
the MC601 Rear Panel and temporarily place them
in a safe place. Refer to figure 1.
Caution: Do not connect the AC Power Cord to the
MC601 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
MC601 Connection Diagram located on the separate
folded sheet “Mc1B”, is an example of a typical audio
system. Your system may vary from this, however the
actual components would be connected in a similar
manner. For additional information refer to “Connec-
tor and Cable Information” on page 4.
Figure 2
Figure 3 Figure 4
Figure 1
Remove Screws
When connecting the Loudspeaker Hookup Cables to
the MC601 Power Amplifier Output Terminals please
follow the steps below:
1. Rotate the top of the Output Terminal Post coun-
terclockwise until an opening
appears. Refer to gures A and
B.
2. Insert the Loudspeaker hookup
cable into the Output Terminal
Post opening or the cable spade
lug around the center post of
the Output Terminal. Refer to
gure C.
3. Rotate the top of the Output
Terminal Post clockwise until it
is nger tight. Refer to gure D.
4. Place the supplied McIntosh
Wrench over the top of the Out-
put Terminal and rotate it one
quarter of a turn (90° ) to secure
the Loudspeaker Cable Connec-
tion. Do not over tighten. Refer
to gure E.
Figure A
Opening
Figure B
Figure C Figure D
Figure E
Output Terminals