Owner’s Manual
XRT30
Loudspeaker
System
XRT30
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549
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Thank You
Table of Contents
Your decision to own this McIntosh XRT30 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.
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
Please Take A Moment
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:
Important Information
Caution: The XRT30 Bass Section Cabinet weight is 192
pounds (87.1kg) and the High Frequency Column
weight is 82 pounds (37.20kg) net. It requires two or
more persons to safely handle each section.
1. It is very important that Loudspeaker Cables of adequate size
be used, to ensure that there will be no 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:
Serial Number:
Purchase Date:
Dealer Name:
Technical Assistance
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:
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.
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-1545
Fax: 607-723-3636
2. For additional connection information, refer to the owner’s
manual(s) for any component(s) connected to the XRT30
Loudspeaker.
3. The XRT30 has built-in speaker protection in the form of six
automatic resetting solid-state devices as part of the
crossover networks. Two protect the tweeters, one for the
midranges and three 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 XRT30 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.
Customer Service
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
Copyright 2002 by McIntosh Laboratory, Inc.
3
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Introduction
ure 3. The Woofer also incor-
porates McIntosh’s Patented
LD/HP2 Magnetic Circuit De-
sign with shielding to greatly
reduce any external magnetic
field. Extensive investigating
and testing resulted in a new
design concept which utilizes
a pair of aluminum shorting
sleeves in the magnetic cir-
LD/HP
McIntosh Acoustic Engineers have refined the line source
Column Loudspeaker concept to provide superior quality
midrange and high frequency sound reproduction in a full
range system.
The High Fre-
quency Section
utilizes a patented
Column Design1
with multiple four
inch Midrange
LD/HP2 Magnetic
Circuit Design
Figure 1
Drivers and one
Conventional
Figure 4
cuit. Refer to figure 4. The sleeves virtually eliminate the
negative influence of the fluctuating voice coil field on the
permanent magnet
field. This results in
lower distortion due
inch soft dome Tweeters. Refer to figure 1. Since the audio
power fed to a column is distributed among all the drivers,
to more linear mag-
netic flux in the
each driver does not have to work as hard, resulting in
greater power handling capability and a dramatic reduction
voice coil gap. Re-
fer to figure 5. Ad-
in distortion. The Sound Waves from the Column produce
a Cylindrical Wave Front with a stable symmetrical hori-
ditional benefits are
less volume com-
pression due to im-
proved heat transfer
through the sleeves and a cooler operating voice coil. Both
measurements, as well as critical listening, reveal ten times
zontal sound dispersion to minimize undesirable floor and
ceiling re-
flections
that could
detract from
a stable
Figure 5
less distortion than previous designs. A good example of
this low distortion is incredible smoothness and clarity in
the reproduction of the human voice.
The Crossover Networks used in the XRT30 Loud-
speaker Sys-
tem are de-
signed to en-
sure an even
frequency re-
sponse over
the entire au-
dible range.
The Low Fre-
sound im-
age. Refer
to figure 2.
In the illus-
tration the
Loudspeaker on the left side produces a Cylindrical Wave
Front and the Loudspeaker on the right side produces a
conventional Spherical Wave Front.
The Low Frequency Section of the System consists of
two 12 inch Woofers. They have a large magnet assembly
and long
cone ex-
cursions
Figure 2
quency Cross-
over Network
is a Third Or-
der design uti-
lizing Capaci-
tors and In-
ductors with
high current
with very
low levels
of har-
monic dis-
tortion and
frequency
response
down to
Figure 6
capacity. Refer to figure 6. There are three different types
of low loss (DCR) Inductors in the network, each one cho-
sen not to exhibit any core saturation even at high power
16Hz. Re-
fer to fig-
Figure 3
1COLUMN Pat. No. 4,267,405
2LD/HP Pat. No. 5,151,943
4
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Introduction and Performance Features
Performance Features
levels. This prevents the addition of distortion to the music
at low frequencies. The High Frequency Crossover Net-
work utilizes both
Second and Third
Order Crossover
Patented LD/HP Technology
•
The McIntosh Low Frequency and Midrange Loudspeaker
Elements feature the patented LD/HP Magnetic Circuit
Design. This design, when compared to conventional
Loudspeaker Elements, reduces distortion significantly. It
also increases power handling and efficiency.
Designs. Refer to
figure 7. It also uses
Capacitors and In-
ductors with high
current capacity.
The Capacitors
used include low
loss (ESR) Polypro-
Neodymium-Iron-Boron Alloy Magnets
•
The 30 four inch Midranges and 25 one inch Dome Tweet-
ers all use this Alloy. The Neodymium-Iron-Boron Alloy
has a high flux density per unit of volume and helps to
keep the Column weight to a minimum.
pylene and Mylar
types. Both Cross-
over Networks also
utilize self resetting
high current Poly-
Switches to provide an extra measure of protection.
The enclosures are an important part of the XRT30
Loudspeaker System. The Bass Section Cabinet is con-
structed from 1
inch and 1-1/2 inch
thick MDF with
Shielded Magnetic Field
•
The XRT30 may be used in Home Theater Installations
near a television receiver or monitor without causing the
television image to degrade. McIntosh has designed
special shielding around the magnetic structure of the
XRT30 Loudspeaker Elements to prevent interference.
Figure 7
High Power Handling
•
The Loudspeaker Elements and Crossover Components of
the XRT30 are all chosen for use with powerful amplifiers
up to 1,200 watts.
laminated hard-
woods and veneers.
Internally, the cabi-
net is reinforced
with multiple MDF
Cross-Bracing
Trusses all de-
signed to help in-
Superior Imaging
•
Locating the Column of Tweeters between the two
Columns of Midranges helps to generate a symmetrical
horizontal polar response for superior imaging.
sure that the cabi-
net will not vibrate.
Refer to figure 8.
The High Fre-
quency Column
Section utilizes a
massive extruded
aluminum enclosure that houses the 30 four inch Midrange
and 25 one inch Tweeter Drivers. Refer to figure 9. It also
has multiple front
to back internal
braces to form a
dampened rigid
Column Struc-
ture. The
Versatile Operation and Placement
•
In additional to the regular connections, the XRT30 Loud-
speaker System provides separate connections for Bi-Am-
plification and Tri-Amplification hookups. The Crossover
Network has provisions to ensure the best performance
when the High Frequency Column is mounted in a wall.
Figure 8
Gold Plated Input Connectors
•
The XRT30 input connectors are gold plated for superior
corrosion resistance and high electrical conductivity.
Figure 9
Column’s small
footprint allows for a variety of different placements in a
room.
5
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XRT30 Bass Section Dimensions
Top View of the XRT30 Bass Section
The following dimensions can assist in determining the
best location for your XRT30 Loudspeaker System.
17"
43.18cm
17"
43.18cm
14"
35.56cm
14"
35.56cm
1"
2.54cm
Side View of the XRT30 Bass Section
Front View of the XRT30 Bass Section
14-7/8"
37.78cm
17"
43.18cm
37-3/4"
95.88cm
31-15/16"
81.12cm
37-1/2"
95.25cm
1-3/4"
4.45cm
14-7/8"
37.78cm
1-5/8"
4.13cm
18-5/8"
47.31cm
20-1/4"
51.44cm
6
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Dimensions
Front View of the XRT30 Bass Section
Rear View of the XRT30 Bass Section
19-1/4"
48.90cm
21-1/4"
53.98cm
16-1/2"
41.91cm
14-1/4"
36.20cm
11-3/4"
29.85cm
7-13/16"
19.84cm
10-1/8"
25.72cm
10-1/8"
25.72cm
12-15/32"
31.67cm
7
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XRT30 Column Section Dimensions
The following dimensions can assist in determining the
best location for your XRT30 Loudspeaker System.
Side View of the
Rear View of the
XRT30
Front View of the
XRT30
XRT30
High Frequency Column
High Frequency Column
High Frequency Column
4-1/2"
11.43cm
5-3/8"
13.65cm
76-1/8"
193.36cm
21-15/16"
55.72cm
3-15/16"
10.00cm
17-1/4"
43.82cm
1-3/4"
4.45cm
12-1/2"
31.75cm
5-3/8"
13.65cm
16-3/8"
41.59cm
5-3/4"
14.61cm
5-7/8"
14.92cm
16-3/8"
41.59cm
8-3/16"
20.80cm
10-9/16"
26.83cm
8
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Dimensions
End View and Base of the
XRT30
High Frequency Column
Front View of the
XRT30
High Frequency Column
9-5/8"
24.45cm
13-1/16"
33.18cm
6-1/2"
16.51cm
3-3/8"
8.57cm
9-3/16"
23.34cm
7/8"
2.22cm
1-3/8"
3.49cm
4-1/2"
11.43cm
2-1/8"
5.40cm
7"
17.78cm
1-5/8"
4.13cm
13-1/8"
33.34cm
4-1/2"
11.43cm
2-3/4"
6.99cm
11-1/16"
28.10cm
9-3/4"
24.77cm
16-3/8"
41.59cm
9"
22.86cm
9
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Installation
The XRT30 High Frequency Column Section requires two
or more persons to safely handle the Column during as-
sembly and placement. Follow the instructions below for
unpacking and assembly. It is recommended that the Pro-
fessionals at your McIntosh Dealer, who are skilled in all
aspects of installation and operation, install the XRT30
Loudspeaker System and any associated audio equipment.
6. Replace the shipping carton top onto the shipping car-
ton bottom. Take the two center pieces of the just re-
moved packing material and lay it down flat onto the
top of the shipping carton.
7. Carefully remove the protective shipping bag(s) from
the Loudspeaker Column so as not to mar the Column
Finish or damage the Loudspeaker Drivers.
8. Place the Loudspeaker Column on top of the packing
material located on top of the shipping carton making
sure to align the Column Bottom End (the Glass Name
Plate end) to the end of the shipping carton. Refer to
figure 12.
Unpacking the High Frequency Column
1. Remove the banding material from the shipping car-
ton. Refer to figure 10.
2. Lift off the top of the
shipping carton and set
it aside.
3. Lift up on the rear of
Unpacking the Column Base
9. Lift and remove the bubble wrap packing material
from the base.
10. Locate and remove the bag of hardware and Allen
Wrench Tool taped to the bottom of the base.
the Column Loud-
speaker, near the foam
packing material at
Figure 10
both ends. Place the entire assembly (Column, Loud-
speaker Grille and foam packing material) next to the
bottom shipping carton
on a flat surface. Refer
to figure 11.
Assembling the High Frequency Column
11. Using the supplied Allen Wrench, remove two screws
Remove
Remove
from each side of
the Column Bot-
tom. Refer to fig-
ure 14.
Two Screws
Two Screws
4. Release the Loud-
speaker Grille from the
packing material by
opening the slit in the
packing material lo-
12. Orient the Col-
umn Base with the
Decal Arrow
Figure 11
cated on the top center. Remove the Loudspeaker
Grille from the protective shipping wrap and set it
aside.
pointing toward
the front of the
Loudspeaker Col-
umn. Refer to fig-
ure 15.
Figure 14
5. In a similar manner, lift out the Loudspeaker Column
and set it aside.
Glass Panel
Packing
material
Packing
material
Figure 12
Fastening Pin
Gromment
Figure 13
10
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Installation
13. Attach the Column Base to the Loudspeaker Column music with continuous bass, setting up the speakers and
using the four supplied machine bolts and washers. Re- listening to them from the main listening spot. Move the
fer to figure 12.
Loudspeakers to an alternate location and repeat the listen-
ing, paying attention to how the bass qualities and re-
sponse levels change. Do not assume the loudest bass is
best; rather listen for booming (a lack of articulation), as
well as a balance over the whole spectrum, to assure the
bass will not drown out the other parts of the music. Ex-
periment with various Loudspeaker positions until the lo-
cations that sound best are found.
14. Orient the Loudspeaker Grille
with the extended wood trim
pointed towards the Column Base
and line it up even with top/sides
of the Column. Align the Grille
fastening pins to the Column
Grommets (there are six pins on
each side). Carefully push down
Figure 15
to secure the Grille to the Column. Refer to figure 13.
Locating Loudspeakers for use in Home Theater
In a Home Theater application, the placement of Left and
Right Front
Optional Feet
15. Two sets of optional feet (fourteen Tiptoes and fourteen Loudspeakers
Glides) are supplied with the XRT30 Loudspeaker Sys- can be limited
tem. Refer to figure 16. To
prevent crushing carpet use
the Tiptoe Spikes; to protect
non-carpeted flooring use the
Chrome Glides. Both the
Glides and Tiptoes have a
threaded shaft and locking nut
that screw into the tapped
holes in the bottom of the
by such
considerations
as the size and
location of the
video monitor.
The locating
suggestions in
the “for use in a
Music System”
section below
can still be
Glides
Tiptoes
Figure 16
XRT30’s base rails. The feet can be independently ad-
justed to compensate for uneven flooring. The second
set of optional feet are for the Bass Section Cabinet.
16. Stand the Column upright.
Figure 17
helpful as a
starting place. Refer to figure 17.
Locating Loudspeakers for use in a Music System
When used in a Music System the distance between the
Room Placement
Loudspeaker placement in a room can greatly affect
performance. The XRT30 Loudspeaker is designed for
both Music and Home Theater Systems. The optimal
method for selecting speaker locations includes the use of
a real time spectrum analyzer operated by an experienced
system installer. An uncompromising installation would
take into consideration the floor, wall and ceiling
Loudspeakers
and the listener
to the
Loudspeakers
should form an
isosceles
triangle. If the
speakers are too
far apart relative
coverings, the type and placement of furniture and can
even include the architectural design of the room and its
construction materials. In those instances where placement to the listener,
in the room is fixed an enviromental equalizer may be
needed to restore proper musical balance.
some imaging
can be lost.
Refer to figure
18.
Placement near a wall, corner, floor, ceiling or any in-
tersecting surfaces will reinforce some bass frequencies.
Which bass frequencies are boosted by placement in a par-
ticular location is dependant on the dimensions of the
room. Test the various Loudspeaker locations by playing
Figure 18
11
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How to Prepare Hookup Cables
The McIntosh XRT30 Loudspeaker System utilizes bind-
ing posts for speaker wire connections. Prepare the Loud-
speaker Hookup Cables that attach to the Power Amplifier
Output Terminals:
Section to the COLUMN MID 4S (+) Binding Post of
the High Frequency Column Section..
5. Tighten all of the Loudspeaker and Amplifier Binding
Posts.
Bare wire cable ends:
Carefully remove sufficient insulation from the cable
ends, refer to figures 20, 21 & 22. If the cable is
stranded, care-
McIntosh Single Channel Amplifier
fully twist the
strands to-
gether as
tightly as pos-
sible.
Note: If desired, the twisted ends can be tinned with
solder to keep the strands together and/or attach a
spade lug.
Spade lug or prepared wire connection:
Insert the spade lug connector or prepared section of
the cable end into the terminal side access hole, and
tighten the terminal cap until the cable is firmly
clamped into the terminal so the wires cannot slip out.
Refer to figures 23, 24 & 25.
How to Connect using a single Amplifier
1. Connect a Loudspeaker cable from the Negative (-)
Binding Post of the Amplifier to the XRT30 Bass Sec-
tion SYSTEM INPUT COMmon (-) Binding Post.
Note: The SYSTEM INPUT AND WOOFER DIRECT
COMmon (-) Binding Posts on the XRT30 Bass Section
must have a jumper installed between them.
2. Connect a Loudspeaker cable from the Positive (+)
Binding Post of the Amplifier to the XRT30 Bass Sec-
tion SYSTEM INPUT 4S (+) Binding Post.
3. Connect a Loudspeaker cable from the TO COLUMN
MID/HIGH COMmon (-) Binding Post of the XRT30
Bass Section to the Column MID COMmon (-) Binding
Post of the High Frequency Column Section.
Note: The MID and HIGH COMmon (-) Binding Posts must
have a jumper installed between them. Likewise the
MID and HIGH 4S (+) Binding Posts must also have a
jumper installed between them. If the XRT30 Column is
install into wall, use the MID IN-WALL Binding Posts
instead of the Column MID Binding Posts.
4. Connect a Loudspeaker cable from the TO COLUMN
MID/HIGH 4S (+) Binding Post of the XRT30 Bass
12
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How to Connect using a single Amplifier
XRT30 High Frequency Column Section
XRT30 Low Frequency Bass Section
13
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How to Prepare Hookup Cables
The McIntosh XRT30 Loudspeaker System utilizes bind-
ing posts for speaker wire connections. Prepare the Loud-
speaker Hookup Cables that attach to the Power Amplifier
Output Terminals:
Binding Post of the Amplifier Number Two to the
XRT30 High Frequency Column Section MID
COMmon (-) Binding Post.
4. Connect a Loudspeaker cable from the Positive (+)
Binding Post of the Amplifier Number Two to the
XRT30 High Frequency Column Section MID 4S (+)
Binding Post.
Bare wire cable ends:
Carefully remove sufficient insulation from the cable
ends, refer to figures 20, 21 & 22. If the cable is
stranded, care-
fully twist the
strands to-
gether as
tightly as pos-
sible.
Note: If desired, the twisted ends can be tinned with
solder to keep the strands together and/or attach a
spade lug.
Note: The MID and HIGH COMmon (-) Binding Posts must
have a jumper installed between them. Likewise the
MID and HIGH 4S (+) Binding Posts must also have
a jumper installed between them. If the XRT30
Column is installed into wall, use the MID IN-WALL
Binding Posts instead of the Column MID Binding
Posts.
5. Tighten all of the Loudspeaker and Amplifier Binding
Posts.
Spade lug or prepared wire connection:
Insert the spade lug connector or prepared section of
the cable end into the terminal side access hole, and
tighten the terminal cap until the cable is firmly
clamped into the terminal so the wires cannot slip out.
Refer to figures 23, 24 & 25.
McIntosh Single Channel Amplifier Number Two
How to Connect using two Amplifiers
1. Connect a Loudspeaker cable from the Negative (-)
Binding Post of the Amplifier Number One to the
XRT30 Bass Section SYSTEM INPUT COMmon (-)
Binding Post.
McIntosh Single Channel Amplifier Number One
Note: The SYSTEM INPUT AND WOOFER DIRECT
COMmon (-) Binding Posts on the XRT30 Bass
Section must have a jumper installed between them. If
the Audio or Home Theater System Electronics has the
capability of an Electronic Crossover set to 80Hz,
remove the jumper between the SYSTEM INPUT AND
WOOFER DIRECT COMmon (-) Binding Posts on the
XRT30 Bass Section and save them for possible future
use. Connect the Amplifier that is reproducing the
frequency range from 16Hz to 80Hz to the WOOFER
DIRECT Binding Posts, instead of the SYSTEM
INPUT Binding Posts.
2. Connect a Loudspeaker cable from the Positive (+)
Binding Post of the Amplifier Number One to the
XRT30 Bass Section SYSTEM INPUT 4S (+) Binding
Post.
3. Connect a Loudspeaker cable from the Negative (-)
14
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How to Connect using two Amplifiers
XRT30 High Frequency Column Section
XRT30 Low Frequency Bass Section
15
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How to Prepare Hookup Cables
The McIntosh XRT30 Loudspeaker System utilizes bind-
ing posts for speaker wire connections. Prepare the Loud-
speaker Hookup Cables that attach to the Power Amplifier
Output Terminals:
Section and save them for possible future use.
4. Connect a Loudspeaker cable from the Negative (-)
Binding Post of the Amplifier Number Two to the
XRT30 High Frequency Column Section MID
COMmon (-) Binding Post.
Bare wire cable ends:
Carefully remove sufficient insulation from the cable
ends, refer to figures 20, 21 & 22. If the cable is
stranded, care-
fully twist the
strands to-
gether as
tightly as pos-
sible.
5. Connect a Loudspeaker cable from the Positive (+)
Binding Post of the Amplifier Number Two to the
XRT30 High Frequency Column Section MID 4S (+)
Binding Post.
6. Connect a Loudspeaker cable from the Negative (-)
Binding Post of the Amplifier Number Three to the
XRT30 High Frequency Column Section HIGH
COMmon (-) Binding Post.
Note: If desired, the twisted ends can be tinned with
solder to keep the strands together and/or attach a
spade lug.
7. Connect a Loudspeaker cable from the Positive (+)
Binding Post of the Amplifier Number Three to the
XRT30 High Frequency Column Section HIGH 4S (+)
Binding Post.
8. Tighten all of the Loudspeaker and Amplifier Binding
Posts.
Spade lug or prepared wire connection:
Insert the spade lug connector or prepared section of
the cable end into the terminal side access hole, and
tighten the terminal cap until the cable is firmly
clamped into the terminal so the wires cannot slip out.
Refer to figures 23, 24 & 25.
McIntosh Single Channel Amplifier Number Two
How to Connect using three Amplifiers
1. Connect a Loudspeaker cable from the Negative (-)
Binding Post of the Amplifier Number One to the
XRT30 Bass Section SYSTEM INPUT COMmon (-)
Binding Post.
Note: The SYSTEM INPUT AND WOOFER DIRECT
COMmon (-) Binding Posts on the XRT30 Bass
Section must have a jumper installed between them. If
the Audio or Home Theater System Electronics has the
capablilty of a Electronic Crossover set to 80Hz,
remove the jumper between the SYSTEM INPUT AND
WOOFER DIRECT COMmon (-) Binding Posts on the
XRT30 Bass Section and save it for possible future
use. Connect the Amplifier that is reproducing the
frequency range from 20Hz to 80Hz to the WOOFER
DIRECT Binding Posts, instead of the SYSTEM
INPUT Binding Posts.
McIntosh Single Channel Amplifier Number One
2. Connect a Loudspeaker cable from the Positive (+)
Binding Post of the Amplifier Number One to the
XRT30 Bass Section SYSTEM INPUT 4S (+) Binding
Post.
3. Remove the jumpers from between the MID and HIGH
Binding Posts on the XRT30 High Frequency Column
16
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How to Connect using three Amplifiers
XRT30 High Frequency Column Section
McIntosh Single Channel Amplifier Number Three
XRT30 Low Frequency Bass Section
17
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Specifications
Specifications
System Driver Complement
Two 12 inch Woofers
Thirty 4 inch Midranges
Twenty-five 1 inch Dome Tweeters
Impedance
4 ohms Nominal
Frequency Response
16Hz - 20kHz
Sensitivity
88dB (2.8V/1m)
Crossover Frequencies
80Hz
1,700Hz
Power Handling
1200 Watts Maximum
Overall Dimensions
Base Section:
37-3/4 inches (95.88cm) Height, 20-1/4 inches (51.44cm)
Width, 18-5/8 inches (47.31cm) Depth
Column Section(including attached base):
76-1/8 inches (193.36cm) Height, 16-3/8 inches (41.59cm)
Width, 16-3/8 inches (41.59cm) Depth
Finish
Black Ash, Natural Cherry, Red Cherry
Weight (each)
Base Section:
192 pounds (87.1kg) net, 212 pounds (96.16kg) in
shipping carton
Column Section:
82 pounds (37.20kg) net, 102 pounds (46.27kg) in
shipping carton
Column Base:
15.5 pounds (7.03kg) net, 18 pounds (8.16kg) in shipping
carton
18
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Packing Instructions
Packing Instructions
In the event it is necessary to repack the equipment for
shipment, the equipment must be packed exactly as re-
ceived. Failure to do so will result in shipping damage.
Use the original shipping carton and interior parts only
if they are in good serviceable condition. If a shipping car-
ton or any of the interior part(s) are needed, please call or
write Customer Service Department of McIntosh Labora-
tory.
High Frequency Section Column
Quantity Part Number
Description
1
1
2
2
034203
034204
034205
034206
Top shipping carton
Bottom shipping carton
Foam end cap
Foam center cap
Bass Section
Quantity Part Number
Note: The High Frequency Column Base is wrapped in bubble
pack and placed in a small carton.
Description
2
2
2
034218
034217
034220
Top or bottom shipping carton
U-Shaped shipping carton
Foam end cap
Note: The Foam End Cap, when
used for the bottom of the
XRT30 Bass Section, has
three foam knockouts
which must be removed to
accommodate the sides
and front of the cabinet
bottom.
19
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McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, NY 13903
McIntosh Part No. 040813
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