Connecting Loudspeakers - McIntosh MA352 Owner's Manual

Integrated amplifier

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Table Of Contents

Table of Contents

Caution: Do not connect the AC Power Cord to the

MA352 Rear Panel until after the Loudspeaker

Connections are made. Failure to observe this

could result in Electric Shock.

The McIntosh MA352 Power Amplifier Circuitry

is designed for Loudspeakers with an impedance of 8

Ohms or 4 Ohms. Connect a single Loudspeaker only

to the Right and Left Output Terminals.

When connecting Loudspeakers to the MA352 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

14AWG

12AWG

4 Ohms

8 Ohms

16AWG

14AWG

1. Prepare the Loudspeaker Hookup Cable for attach-

ment to the MA352 Power Amplifier:

Bare wire cable ends:

Carefully remove sufficient insulation from the

cable ends, refer to figures F, G & H. If the cable

is stranded, carefully twist the strands together

as tightly as possible.

Figure F

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:

2. Attach the previously prepared bare wire cable ends

into the banana plugs and secure the connections.

Refer to figure I.

3. Rotate the Output Terminal Post

clockwise until it is finger tight.

Refer to figure J. Then using the Mc-

Intosh Wrench, rotate the top of the

Output Terminal one quarter

of a turn (90°). Do not over

tighten.

4. Referring to figure K, con-

nect the Loudspeaker hookup

cables with banana plugs

into the hole at the top of the

100 feet

(30.48 meters)

terminal to the MA352

or less

Negative Output Terminal

10AWG

and Positive Output Ter-

12AWG

minal to the Loudspeaker

Terminal Connections be-

ing careful to observe the

correct polarities.

Note: The illustration

If the Loudspeaker's impedance is in-between

the available connections, use the nearest lower

impedance connection. Refer to "General Informa-

tion" Note 6 on page 6 for additional information.

WARNING: Loudspeaker terminals are hazard-

Figure H

Figure G

5. Connect the MA352 power cord to an active AC

outlet.

Figure J

Figure K

located on the separate folded sheet "Mc2B" is

for connection to an 8Ω (ohms) Loudspeaker.

ous live and present a risk of electric

shock. For additional instruction on

making Loudspeaker Connections con-

tact your McIntosh Dealer or McIn-

tosh Technical Support.

Spade Lug or Wire Connections:

6. Connect the Loudspeaker hookup cables to the

MA352 Negative Output Terminal and Positive

Output Terminal to the Loudspeaker Terminal

Connections being careful to observe the cor-

rect polarities. Insert the spade lug connector or

prepared section of the cable end into the terminal

side access hole, and tighten the terminal cap until

Figure I

the cable is firmly clamped into the terminals so

the lugs or wire cannot slip out. Refer to figures L

and M.

Figure L

Note: The illustration located on the separate folded

sheet "Mc2B" is for connection to an 8Ω

(ohms) Loudspeaker.

Refer to "General Information" Note 6 on page 6

for additional information.