Definitive Technology DI55R User Manual

Mythos ST

Mythos ST SuperTower®Loudspeaker with Built-In Powered

Owner’s Manual

Subwoofer

Congratulations

Congratulations on your purchase of the Deﬁnitive Technology Mythos ST The Mythos ST are very unique speakers which include a built-in powered subwoofer system complete with a high-power digital ampliﬁer. These extraordinary speakers truly revolutionize the state-of-the-art in music and home theater loudspeakers.

Our engineers have spent many years in developing this product. In order to ensure that you experience the ﬁnest performance possible, we encourage you to take a moment to fully read this owner’s manual and familiarize yourself with the proper installation and set-up procedures for your Mythos ST speakers.

SuperTower

Loudspeaker System.

Safety Precautions

CAUTION

ISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION! To reduce the risk of electric shock and ﬁre, do not remove the cover or back plate of this device. There are no user serviceable parts inside. Please refer all servicing to licensed service technicians. Avis: Risque de choc electricque, ne pas ouvrir.

CAUTION! The international symbol of a lightning bolt inside a triangle is intended to alert the user to uninsulated “dangerous voltage” within the device’s enclosure. The international symbol of an exclamation point inside a triangle is intended to alert the user to the presence of important operating, maintenance and servicing information in the manual accompanying the device.

CAUTION! To prevent electrical shock, match wide blade of plug to wide slot, fully insert. Attention: Pour eviter les chocs electriques, introduire la lame la plus large de la ﬁche dans la borne correspondante de la prise et pousser jusqu'au fond.

CAUTION! To reduce the risk of electrical shock, do not expose this equipment to rain or moisture.

1. Read Instructions—All safety and operating instructions should be read before operating the device.

2. Retain Instructions—The safety and operating instructions should be retained for future reference.

3. Heed Warnings—All warnings on the device and in the operating instructions should be adhered to.

4. Follow Instructions—All operating and safety instructions should be followed.

5. Water & Moisture—The device should never be used in, on or near water for risk of fatal shock.

6. Carts & Stands—The device should only be used on carts or stands recommended by the manufacturer.

7. Wall & Ceiling Mounting—The device should be mounted on a wall or ceiling only as recommended by the manufacturer.

8. Ventilation—The device should always be located in such a way that it maintains proper ventilation. It should never be placed in a built-in installation or anywhere that may impede the ﬂow of air through its heat sink.

9. Heat—Never locate the device near heat sources such as radiators, ﬂoor registers, stoves or other heat-generating devices.

10. Power Supply—The device should only be connected to a power supply of the type described in the operating instructions or as marked on the device.

11. Power Cord Protection—Power cables should be routed so they are not likely to be stepped on or crushed by items placed on them or against them. Special attention should be paid to areas where the plug enters a socket or fused strip and where the cord exits the device.

12. Cleaning—The device should be cleaned in accordance with manufacturer’s instructions.

13. Periods Of Non-Use—The device should be unplugged when not being used for extended periods.

14. Dangerous Entry—Care should be taken that no foreign objects or liquids fall or are spilled inside the device.

15. Damage Requiring Service—The device should be serviced by licensed technicians when:

• The plug or power supply cord has been damaged.

• Objects have fallen or liquid has spilled inside the device.

• The device has been exposed to moisture.

• The device does not appear to be operating properly or exhibits a marked change in performance.

• The device has been dropped or the cabinet becomes damaged.

16. Service—The device should always be serviced by licensed technicians. Only replacement parts speciﬁed by the manufacturer should be used. The use of unauthorized substitutions may result in ﬁ shock, or other hazards.

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Safety Precautions Speciﬁc to Mythos ST

The cautionary marking label is located on the bottom of the speaker,

visible through an opening in the granite base.

Power Supply

1. The fuse and power disconnect device are located on the bottom of the speaker, accessible through a hole in the granite base.

2. The disconnect device is the power cord, detachable at either the speaker or the wall.

3. The power cord must be disconnected from the speaker before servicing.

Unpacking Your Mythos STs

Please Inspect For Shipping Damage

Each loudspeaker leaves our plant in perfect condition. Any visible or

concealed damage most likely occurred in handling after it left our plant and should be reported at once to your Deﬁnitive dealer or the delivery company that delivered your loudspeaker and packing materials in case you move or need to ship your system. Record the serial number found on the back of the Mythos ST in the appropriate place on your warranty card, answer all questions and send it in.

. Please unpack your system carefully

. Save all cartons

Base Installation Instructions

Tools required: 4mm (or 5/32") Allen Wrench (also called Hex Key driver) Parts required: Polished Granite Base, Cable Clip for AC Cord,

four allen head bolts, eights plastic washers

Instructions:

1. Carefully lay the Mythos ST on its side. Lift the base of the speaker about six inches and support it with a soft padded object, such as a pillow. Do NOT support the speaker with a hard object, as you might dent or scratch the aluminum ﬁnish.

2. Place one plastic washer on each bolt.

3. Insert the bolts into the granite base from the same side that the black feet are attached to.

4. Place another plastic washer on each bolt so the washer is against the granite.

5. Finger tighten all four bolts into the threaded holes on the bottom of the Mythos. If this has been done correctly surface of the Mythos ST

6. GENTLY tighten each bolt with the allen head wrench. Do NOT overtighten or you may crack the granite.

, the granite, and the heads of the bolts.

, washers will be between the metal

7. Attach the AC cord through the hole at the bottom of the granite base.

8. Note the label showing the height adjustment ring and locking collar on the black feet. Carefully return the speaker to the upright position and adjust the feet to level the speaker.

Installing Cable Clip for AC Cord

The cable clip supplied in the accessories bag is a simple easy to use clip,

designed to hold the power cable in place and prevent accidental removal from inlet socket. To use, simply peel backing and apply to bottom of granite base. Suggested location for clip on the bottom of the granite base is half-way between center opening and back of base, slightly off to one side of the rear foot, as shown in diagrams below. Clip should be oriented so that the axis of the cable slot runs between the opening and outside of the base. After plugging supplied power cable into the inlet socket, it may then be pressed into the opening in the cable clip to secure it in place.

SELF-ADHESIVE POWER CABLE RESTRAINING CLIP FOR MYTHOS ST

SUGGESTED CLIP LOCATION

Positioning the Mythos Speakers in Your Room

Your new Mythos speakers are very ﬂexible in terms of positioning and

placement options and they will produce excellent sound in almost any location. Following a few simple guidelines can, however, optimize their performance for the more critical listener. Please remember that although the following recommendations are usually valid, all rooms and listening sets-ups are somewhat unique, so do not be afraid to experiment with the speakers. Remember, whatever sounds best to you is correct.

Positioning Mythos ST as Left/Right Main Speakers

When used as left and right front speakers, the Mythos ST can be placed right

next to your TV with excellent results or may be separated by a greater distance than the width of the TV. As with any speaker, a greater separation (5 to 7 feet or

more) will normally result in a bigger soundstage and this is recommended from

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