McIntosh XR27 - Manual (Page 3)

3
Customer Service
Technical Assistance
Please Take A Moment
Thank You
Copyright 2003

by McIntosh Laboratory, Inc.
The serial number, purchase date and McIntosh Dealer
name are important to you for possible insurance claim or
future service. The spaces below have been provided for
you to record that information:
Your decision to own this McIntosh XR27 Loudspeaker
System ranks you at the very top among discriminating
music listeners. You now have “The Best.” The McIntosh
dedication to “Quality,” is assurance that you will receive
many years of musical enjoyment from this unit.
Please take a short time to read the information in this
manual. We want you to be as familiar as possible with all
the features and functions of your new McIntosh.
Serial Number:
Purchase Date:
Dealer Name:
If it is determined that your McIntosh product is in need of
repair, you can return it to your Dealer. You can also return
it to the McIntosh Laboratory Service Department. For as-
sistance on factory repair return procedure, contact the
McIntosh Service Department at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3515
Fax: 607-723-1917
If at any time you have questions about your McIntosh
product, contact your McIntosh Dealer who is familiar
with your McIntosh equipment and any other brands that
may be part of your system. If you or your Dealer wish ad-
ditional help concerning a suspected problem, you can re-
ceive technical assistance for all McIntosh products at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-1545
Fax: 607-723-3636
Safety Instructions ............................................................. 2
Thank You and Please Take a Moment ............................. 3
Technical Assistance and Customer Service ..................... 3
Table of Contents and Important Information ................... 3
Introduction ....................................................................... 4
Performance Features ........................................................ 5
Dimensions ........................................................................ 6
Installation ....................................................................... 10
How to Connect using a single amplifier ........................ 12
How to Connect using two amplifiers ............................. 14
How to Connect using three amplifiers ........................... 16
Specifications .................................................................. 18
Packing Instruction .......................................................... 19
Table of Contents
Important Information
Caution: The XR27 weight is 84 pounds (38kg) and requires
two or more persons to safely handle.
1. Loudspeaker Cables of adequate size are important to ensure
that there will be no significant power loss or heating. Cable
size is specified in Gauge numbers or AWG (American Wire
Gauge). The smaller the Gauge number, the larger the wire
size:
If the Loudspeaker Cables are 25 feet (7.62m) or less, use at
least 18 Gauge (AWG) wire size or larger.
If the Loudspeaker Cables are 50 feet (38.1m) or less, use at
least 14 Gauge (AWG) wire size or larger.
If the Loudspeaker Cables are 100 feet (76.2m) or less, use at
least 12 Gauge (AWG) wire size or larger.
The Loudspeaker Connection Terminals can accept up to 12
Gauge (AWG) wire.
2. For additional connection information, refer to the owner’s
manual(s) for any component(s) connected to the XR27
Loudspeaker System.
3. The XR27 has built-in speaker protection in the form of four
automatic resetting solid-state devices as part of the
crossover networks. One protects the tweeters, one for the
midranges and two for the woofers. The characteristics of this
protection are that a certain amount of overdrive is allowed
but extended periods of overdrive will trigger protection. If an
obvious lack of high, mid or low frequencies is noticed, the
Loudspeaker Protection Device may have activated. The
protection devices will automatically reset when the volume
control is reduced significantly and kept low until the output
of the affected Loudspeaker Element returns to normal.
4. When the XR27 Loudspeaker System is driven by more than
one amplifier, the output levels of the different amplifiers
connected to the Loudspeaker System must be adjusted to
achieve a proper balance between the low, midrange and high
frequencies reproduced. This adjustment is best achieved
through the use of audio test equipment operated by a
qualified installer.
5. The XR27 is designed to be used with a Subwoofer, like a
McIntosh PS112, in order to hear the entire audible range of
sound.