McIntosh XLS-12 Owners manual

Powered Subwoofer

XLS112

Owner’s Manual

McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549

The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

WARNING - TO REDUCE RISK OF

FIRE OR ELECTRICAL SHOCK, DO

NOT EXPOSE THIS EQUIPMENT TO

RAIN OR MOISTURE.

IMPORTANT SAFETY

INSTRUCTIONS!

PLEASE READ THEM BEFORE

OPERATING THIS EQUIPMENT.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

NO USER-SERVICEABLE PARTS

INSIDE. REFER SERVICING TO

QUALIFIED PERSONNEL.

To prevent the risk of electric shock, do not remove cover or

back. No user-serviceable parts inside.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15. Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment.

16. To completely disconnect this equipment from the a.c. mains, disconnect the power supply cord plug from the a.c. receptacle.

17. The mains plug of the power supply cord shall remain readily operable.

18. This apparatus is capable of producing high sound pressure levels. Continued exposure to high sound pressure levels can cause permanent hearing impairment or loss. User caution is advised and ear protection is recommended when playing at high volumes.

19. Do not operate this apparatus without the front panel grille attached to the cabinet.

Thank Y ou

Table of Contents

Your decision to own this McIntosh XLS112 Powered Subwoofer 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.

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:

Serial Number: Purchase Date: Dealer Name:

T echnical 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 additional help concerning a suspected problem, you can receive technical assistance for all McIntosh products at:

Safety Instructions ............................................................ 2

Thank You and Please Take a Moment............................. 3

Technical Assistance and Customer Service .................... 3

Table of Contents .............................................................. 3

Important Information ...................................................... 4

Connector Information ..................................................... 4

Introduction ...................................................................... 4

Performance Features ....................................................... 5

Dimensions ....................................................................... 6

Installation ........................................................................ 8

Rear Panel Connections.................................................... 9

How to Connect .............................................................. 10

How to Operate............................................................... 12

Specifications ................................................................. 14

Packing Instruction ......................................................... 15

McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903 Phone: 607-723-1545 Fax: 607-772-3308

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 assistance 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

1. The following Connecting Cable is available from the McIntosh Parts Department:

Power Control Cable Part No. 170-202

Six foot, 2 conductor shielded, with two 1/8 inch stereo mini phone plugs.

2. For additional connection information, refer to the owner’s manual(s) for any component(s) connected to the XLS112.

3. In the event that the XLS112 over heats, due to improper ventilation and/or high ambient temperature, the protection circuit will activate placing it in the Standby Mode. The Rear Panel Status LED Indicator will illuminate Red and the audio will be muted. When the XLS112 has returned to a safe operating temperature, normal operation will resume.

4. The XLS112’s Power Control Input will function within a 5 to 20 DC Voltage range.

5. To avoid damage, do not connect the speaker level output terminals from any receiver, amplifier or integrated amplifier to the inputs of the XLS112 Powered Subwoofer.

Connector Information

XLR Connectors

Below is the Pin configuration for the XLR Balanced Input and Output Connectors on the XLS112. Refer to the diagram for connection:

PIN 1: Shield/Ground PIN 2: + Signal PIN 3: - Signal

Power Control Connector

The XLS112 Power Control Input/Output Jacks provide Power On/Off Signals when connected to other McIntosh Components. A 1/8 inch stereo mini phone plug is used for connection to the Power Control Input/Output on the XLS112.

Pin 2 Pin 1 Pin 3

Positive

N/C

Ground

IntroductionImportant Information

The McIntosh XLS112 Powered Subwoofer is designed for Home Theater and Music Reproduction. It has a 12 inch LD/HP low pass filters.

equivalent to the quality of McIntosh’s legendary line of Amplifiers, Preamplifiers, Signal Processors, Signal Sources and Loudspeakers, without imparting distortion or coloration of its own. It also complements the capabilities and the remarkably low distortion of McIntosh Power Amplifiers.

Home Theater applications. Not so with the XLS112. It is also designed for the accurate reproduction of the low frequencies contained in music. Motion picture sound effects, explosions, and vehicle crashes require a wide dynamic range and high sound levels. These sounds are such that a speaker system having moderate distortion would reproduce them with little audible difference. This is not true with the reproduction of music. Music is by nature and definition harmonious. To reproduce it accurately, all forms of distortion, both harmonic and intermodulation, must be kept to a minimum. This has been the result of the design of the new McIntosh XLS112 Powered Subwoofer. Each component in the device has been carefully designed for durability, efficiency, and above all, low distortion. The McIntosh XLS112 Powered Subwoofer will reproduce music accurately and function as an excellent Home Theater Powered Subwoofer.

woofer, a 400 watt amplifier and built-in high and

The XLS112 Powered Subwoofer’s performance is

Many of today’s Loudspeakers are designed only for

LD/HP Pat. No. 5,151,943

Important Information, Connector Information, Introduction and Performance Features

Performance Features

Patented LD/HP Technology

•

The McIntosh Loudspeaker Element features the patented LD/HP motor structure. This design, when compared to conventional Loudspeaker Elements, reduces distortion significantly. It also increases power handling and efficiency.

Large Woofer with Integral Heat Sink

•

Massive dual magnets with thick front and back plates provide an incredible heat sink for the voice coil. The voice coil itself is wound on a 3" diameter aluminum bobbin to further aid in the dissipation of heat. The ability to dissipate heat greatly improves the driver’s capacity to perform at high power levels and not suffer from power compression.

Rigid Woofer Framework

•

A black powder coated, die cast aluminum basket is used as the framework for the driver. Such framework is necessary to keep the driver’s moving components aligned during the long excursions a subwoofer can produce.

Signal Sensing Circuitry

•

In addition to the McIntosh Remote Power Control feature, the XLS112 utilizes signal-sensing circuitry. This signalsensing circuitry is beneficial when the XLS112 is to be located at a great distance from the pre-amp and running an additional Power Control Cable for remote turn-on is not feasible.

Phase Switch

•

The Phase Switch can be set to 0 cancellation.

Balanced and Unbalanced Inputs/Outputs

•

Balanced connections guard against induced noise and allow long cable runs without compromising sound quality.

Variable Low Pass Filter

•

The variable Low Pass Filter selects the low frequencies sent to the XLS112’s Power Amplifier when used with a full range source signal. This filter can be switch out of the signal path in Home Theater Systems.

or 1800 to avoid phase

Shielded Magnetic Field

•

The XLS112 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 XLS112’s Loudspeaker Element to prevent interference.

High Power and Low Distortion

•

The XLS112’s 400 Watt Amplifier has very Low Total Harmonic Distortion (THD). This 0.07% THD rating combined with the low distortion of the McIntosh LD/HP Driver provides exceptionally smooth and clean low frequency response.

Power Guard

•

The patented McIntosh Power Guard circuit prevents the XLS112’s Amplifier from being over driven into clipping, with its harsh distorted sound that can also damage your valuable Loudspeaker.

Remote Power Control

•

The turn-on method uses a standard McIntosh Power Control jack to receive a turn-on signal from a McIntosh Control Center. The alternate turn-on method for the XLS112 utilizes signal-sensing circuitry.

• Sentry Monitor and Thermal Protection

McIntosh Sentry Monitor power output stage protection circuits ensure the XLS112 will have a long and trouble free operating life. Built-in Thermal Protection Circuits guard against overheating.

• Heavy Duty Power Supply The XLS112 incorporates a regulated Power Supply, special R-Core Power Transformer and extra large filter capacitors. All together these design features ensure stable noise free operation even though the power line varies.

Gold Plated Input Connectors

•

The XLS112 Input Connectors are gold plated for superior corrosion resistance and high electrical conductivity.

Special Enclosure

•

The XLS112 Enclosure is a combination of thick extruded aluminum metal sides and rear panel with a textured black powder coated finish. The front, top and bottom of the enclosure is made from thick MDF covered with a thermal vacuum formed durable surface also in a textured black finish.

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