Definitive Technology Mythos Seven User manual

Congratulations

Congratulations on your purchase of a Deﬁnitive Technology

Mythos Audio/Video Loudspeaker System. These superb

loudspeakers utilize state-of-the-art components (homopolymer-

coned bass-midrange drivers, moving coil ferroﬂuid-cooled pure

aluminum dome high frequency radiators, long excursion pressure

coupled woofers, uniphase crossover networks, etc.), a non-reso-

nant aircraft-grade aluminum monocoque cabinet, low diffraction

construction and complete magnetic shielding in order to achieve

the most lifelike sound possible in your listening room for many

years to come.

The Deﬁnitive Technology Mythos loudspeakers are compact

high-deﬁnition loudspeaker systems designed for use in audio/

video systems of the highest quality. Because of their compact

size, wide range, high power handling and natural articulate

clarity, they are ideal for use as a left main, right main, and

center speaker (which may be on-wall or in-cabinet mounted) in

conjunction with all surround sound decoding systems, including

Dolby Pro Logic*, Dolby Digital AC-3*, DTS*, Dolby Digital

EX*, as well as all 6.1 and 7.1 systems. In addition, the Mythos

loudspeakers are ideal for use as rear or side surround speakers

in all surround sound decoding systems or as audiophile quality

main speakers in a high quality stereo system.

On-Wall and On-Shelf

Audio/Video Magnetically Shielded Loudspeakers

Owner’s Manual

*Registered Trademark

Mythos™Six &

Mythos™Seven

Your new Mythos speakers are very ﬂexible in terms of positioning

and placement options.

The Mythos Six will generally be positioned vertically.It can be easily

mounted on a wall using its unique mounting system. When attached to

its optional glass base, it can be placed on a tabletop, on a bookshelf or in

acabinet, etc. The Mythos Seven is designed for horizontal mounting and

it can be easily mounted on a wall, using its unique mounting system.

It can also be placed on a tabletop, on top of a TV (if the top provides a

deep enough platform for stable placement), on a shelf, etc. when used

with its rear stabilizing/angle adjustment foot.

Please remember that although the following recommendations are

usually valid, all rooms and listening set-ups are somewhat unique, so

do not be afraid to experiment with the speakers. Remember,whatever

sounds best to you is correct.

Positioning Mythos Six as Left/Right Main Speakers

Because of its vertical orientation, the Mythos Six will normally be

used as a right or left main front speaker or as a rear or side surround

speaker.Nevertheless, it can certainly be used as a center speaker if its

vertical orientation is appropriate for a center speaker in your installation.

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

placed right next to the TV with excellent results or may be separated by

adistance greater than the width of the TV.As with any speaker,agreater

separation (5 to 7 feet or more) will normally result in a bigger sound-

stage and this is recommended from a sonic point of view.

Unpacking Your Mythos Loudspeakers

Positioning Your Mythos Speakers in Your Room

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. Please unpack your system

carefully. Save all cartons and packing materials in case you move or

need to ship your system. Record the serial number found on the back of

the Mythos loudspeakers in the appropriate place on your warranty card.

Positioning Mythos Six as Rear/Side Surrounds

When used as rear or side surround speakers, Mythos Six may be

located on the side or behind the listeners. When used on the sides,

take care never to locate the speakers forward of the listeners. The

speakers may be placed at or above ear level. If the speakers are placed

on the rear wall, it is suggested that they be positioned fairly wide apart

if possible. (For instance, if there is a couch in the center of the rear wall

on which the listeners will sit, try to position the speakers wider apart

than the couch.)

Positioning Mythos Seven as a Center Channel

The Mythos Seven is designed for horizontal use and will normally

be used as a front or rear center channel speaker.Of course, if you have

aneed for a horizontal Mythos for left and right main channel use or

surround use, the Mythos Seven is perfect for that also.

As a center channel, the Mythos Seven can be positioned either above

or below the TV. Of course, it can be mounted on the wall, placed on a

shelf, or on top of the TV itself if the top of the TV is big enough and ﬂat

enough to provide a safe mounting surface.

Your Mythos loudspeakers should sound good right out of the box;

however, an extended break-in period of 20-40 hours or more of normal

playing is required to reach full performance capability.Break-in allows

the suspensions to work in and results in fuller bass, a more open

“blossoming” midrange and smoother high frequency reproduction.

Speaker Break-In

Mythos Seven Vertical Angle Adjustment

Your Mythos Seven has a simple built-in device which stabilizes it and

allows you to adjust the vertical angle when the system is placed on a ﬂat

horizontal surface. If the foot is not screwed in, screw it into the threaded

hole on the bottom of the speaker. When you set the speaker down, the

speaker will lean back and rest on the foot. By varying how far you screw

in the foot, you can adjust the vertical angle of the speaker. We suggest

that you aim the speaker so that it points directly towards the height of the

listeners’ ears.

Hooking Up Your Mythos Loudspeakers

Your Mythos loudspeakers each have one pair of gold 5-way

binding posts. Normally, you will hook up the left main/front channel

red(+) terminal of your receiver or ampliﬁer to the red(+) terminal of

your left Mythos loudspeaker and the left main/front channel black(-)

terminal of your receiver or ampliﬁer to the black(-) terminal of your

left Mythos loudspeaker.Connect the right channel main/front

channel red(+) terminal of your ampliﬁer or receiver to the red(+)

terminal of your right Mythos loudspeaker and the black(-) terminal of

the right main/front channel of your receiver or ampliﬁer to the

black(-) terminal of your right Mythos loudspeaker.

If you are using the Mythos as a center channel, connect the center

channel red(+) terminal of your ampliﬁer or receiver to the red(+)

terminal of your Mythos center channel speaker and the black (-)

terminal of the center channel of your receiver or ampliﬁer to the

black(-) terminal of your Mythos center channel loudspeaker.

If you are using the Mythos as side/rear surround speakers, hook up

the left surround red(+) terminal of your receiver or ampliﬁer to the

red(+) terminal of your Mythos left surround speaker and the left sur-

round black(-) terminal of your receiver or ampliﬁer to the black(-)

terminal of your Mythos left surround speaker.Connect the right sur-

round red(+) terminal of your ampliﬁer or receiver to the red(+) termi-

nal of your Mythos right surround loudspeaker and the black(-) termi-

nal of the right surround channel of your receiver or ampliﬁer to the

black(-) terminal of your Mythos right surround loudspeaker.

If your receiver/ decoder has a bass management system and you

are using a separate subwoofer, set bass management to “Small”left

and right main speakers, “Small”center channel, “Small”surround

speakers and “Yes”subwoofer.Ifyour receiver/decoder has a choice

of crossover frequencies, set the crossover to 80 Hz or 100 Hz if avail-

able (for greater dynamic range). If you are not using a separate sub-

woofer,set bass management to “Large”left and right main speakers,

“Large”center channel and “Large”surround speakers, and “No”sub-

woofer.Westrongly recommend the use of a separate subwoofer.

Connecting Your Mythos Loudspeakers

Mounting Your Mythos Six with the Supplied

Wall-Mount Bracket

Your Mythos Six comes with an optional wall-bracket designed to

securely mount your speaker ﬂush to your wall. The bracket can ONLY

be used with a vertical installation. (For horizontal installations, the

Mythos Seven speaker should be used instead.) For safety, it is extremely

important that this bracket be installed with molly-bolts or similarly

effective fasteners appropriate for the construction of your wall. Be sure

to use all six of the mounting holes when fastening the bracket to the

wall. Never use unanchored or improperly anchored screws in your wall.

Professional installation is strongly recommended. Your dealer can either

arrange this for you, or refer you to a qualiﬁed installer.

Todetermine the bracket’sposition on the wall, the following measure-

ments will be helpful. When the Mythos Six is installed on the bracket,

the top edge of the speaker is 15/8inches (41 mm) from the top edge of the

bracket, the bottom edge of the speaker is 7 inches (177 mm) from the

bottom of the bracket, and the outer edges of the speaker are 13/8inches

(35 mm) from the sides of the bracket. If you are mounting your Mythos

Six close to anything above it, please allow an extra 11/2inches (38 mm)

for the speaker to slide onto its bracket.

If your speaker wires are to be hidden inside the wall, be sure to

conform to your local building codes. When installed on the bracket,

Setting Bass and Treble Controls on Your

Receiver or Ampliﬁer

Normally we recommend that you set the Bass and Treble controls

on ﬂat or 0 dB. This will give you the most linear and natural sound.

Also, if your ampliﬁer or receiver has a graphic equalizer, we recom-

mend that you leave it ﬂat. The reason for this is that we have spoken

with many consumers about what they thought were improperly

sounding speakers when, in fact, the problem was misadjusted tone

controls. When in doubt, leave them ﬂat; this almost always

sounds the best.

Usually if distortion is heard when the speakers are being driven

at loud levels, it is caused by driving (turning up) the ampliﬁer too loud

and not driving the speakers with more power than they can handle.

Remember, most ampliﬁers put out their full-rated power well before the

volume control is turned all the way up! If your speakers distort when you

play them loud, turn down the ampliﬁer or get a bigger one.

the center of the Mythos Six speaker terminals will be 31/4inches (82 mm)

below the bottom edge of the bracket.

To install the Mythos Six on its bracket, securely fasten the two mount-

ing screws supplied into the two threaded holes on the rear of the speaker,

screwing them in as far as they will go. The speaker will then hang in the

two “keyholes” on the bracket. After placing the screws in these open-

ings, pressing down ﬁrmly on the top of the speaker will seat the speaker

properly and avoid any rattles during use.

Using Your Mythos Six on a Shelf or Furniture

Your Mythos Six comes with an optional tempered glass base for

standing the speaker on a horizontal shelf or on furniture. (For horizontal

installations, the Mythos Seven speaker should be used instead.) For

safety, please make sure the location where you place the speaker is ﬂat

and level. The base must be installed with the included plastic spacer’s

smooth silver side against the glass on the surface opposite the feet.

Please make sure that the plastic washers are used with the four supplied

mounting screws. Do not over-tighten the mounting screws.

Your Mythos Seven comes with an optional wall-bracket designed to

securely mount your speaker ﬂush to your wall. The bracket can ONLY

be used with a horizontal installation. (For vertical installations, the

Mythos Six speaker should be used instead.) For safety, it is extremely

important that this bracket be installed with molly-bolts or similarly

effective fasteners appropriate for the construction of your wall. Be sure

to use all six of the mounting holes when fastening the bracket to the

wall. Never use unanchored or improperly anchored screws in your wall.

Professional installation is strongly recommended. Your dealer can either

arrange this for you, or refer you to a qualiﬁed installer.

Todetermine the bracket’sposition on the wall, the following measure-

ments will be helpful. When the Mythos Seven is installed on the bracket,

the top edge of the speaker is 1 inch (25 mm) from the top edge of the

bracket, the bottom edge of the speaker is 11/4inches (32 mm) from the

bottom of the bracket. The right outer edge of the speaker is 31/2inches

(89 mm) from the sides of the bracket. The left outer edge of the speaker

is5inches (129 mm) from the sides of the bracket. The center of the

Mythos 7 speaker terminals will be 11/2inch (37 mm) from the sides of the

bracket. If you are mounting your Mythos Seven below your display

Mounting Your Mythos Seven with the

Supplied Wall-Mount Bracket

(or any other solid object), please allow an extra 1 inch (35mm) for the

speaker to slide onto its bracket.

If your speaker wires are to be hidden inside the wall, be sure to

conform to your local building codes. When installed on the bracket,

the Mythos Seven speaker terminals will be even with the right edge

of the bracket.

To install the Mythos Seven on its bracket, securely fasten the two

mounting screws supplied into the two threaded holes on the rear of the

speaker, screwing them in as far as they will go. The speaker will then

hang in the two “keyholes” on the bracket. After placing the screws in

these openings, pressing down ﬁrmly on the top of the speaker will seat

the speaker properly and avoid any rattles during use.

Using Your Mythos Seven on a Shelf or Furniture

Your Mythos Seven may be used on a shelf or on the top of a

television, as long as the ﬂat surface chosen has 5 inches of depth. Please

ﬁnd the supplied threaded foot for your speaker and screw into the

threaded hole on the bottom of the speaker. This foot can be used

to adjust the vertical angle of the front of the speaker up or down. For

optimum performance, we suggest that you aim the speaker toward the

height of the listeners’ ears.

The Mythos

Home Theater Systems

Acomplete Mythos Home Theater System will normally combine

afront left, right and center Mythos loudspeaker with rear surround

speakers (which can also be Mythos speakers or any other Deﬁnitive

Surround Loudspeaker including our Bipolar In-Walls, ProMonitors,

StudioMonitors, etc.) and one or more Deﬁnitive subwoofers. These

superb systems offer exceptional music and home theater performance

with all decoding technologies. Remember,to achieve proper blending

and full performance, it is essential to use only Deﬁnitive speakers to

complete your home theater system.

If you use a subwoofer, we strongly suggest using a Deﬁnitive

PowerField SuperCube, PowerField or ProSub in order to achieve

the highest level of sound quality possible.

With Dolby Digital Receivers and Decoders

Most systems using the Mythos loudspeakers with a subwoofer will

be Dolby Digital Systems. Simply hook the Mythos speakers up to the

left and right front (main) channels (assuming you are using them as

front speakers) and hook the Mythos Seven to the center channel

(assuming you are using it as a center channel). Using a low-level

RCA cable, hook the subwoofer up to the LFE output on your receiver

or processor.If you are using a Deﬁnitive subwoofer, input this LFE

cable into the LFE input on the sub. Then set the bass management

system on the receiver or decoder to “Small”left and right main speak-

ers, “Small”center, and “Yes”subwoofer. If your receiver/decoder has

achoice of crossover frequencies, set the crossover to 80 Hz. The cir-

cuitry inside the receiver or decoder will perform the necessary

crossover functions.

With Non-Dolby Digital Systems

With non-Dolby Digital systems, there are many options for using

your Mythos loudspeakers with a subwoofer. The speciﬁc hook-up

will depend on the speciﬁc subwoofer you are using. With Deﬁnitive

subwoofers, you can run the Mythos loudspeakers full range (i.e. hook

them up normally to the ampliﬁer receiver) and connect the subwoofer

to the sub-out with a low-level RCA cable. With Deﬁnitive sub-

woofers this would input into the left or right channel input. You

would then set the woofer’s low-pass crossover: we would suggest

starting around 80 Hz and then experiment up or down from there.

You also have the option with Deﬁnitive subwoofers of using the

subwoofer’s built-in speaker level high-pass crossover as described in

the subwoofer instruction manuals. In this case, also start with the

subwoofer low-pass crossover at about 80 Hz and experiment.

Using Your Mythos Loudspeakers with

aSeparate Subwoofer

Mythos loudspeakers make excellent rear or side surround speakers.

In order to use the Mythos speakers as rear or side surround speakers,

Use of Mythos Six as Rear or Side Surround Speakers

simply hook them up as normal to the rear or side channel ampliﬁer out-

puts of your system. Set the bass management system of your decoder to

“Small”rear and/or side surrounds if your system is using a separate

subwoofer, or “Large”rear or side surrounds if your system is not using

aseparate subwoofer.

It is our pleasure to offer assistance if you have any questions

regarding your Mythos loudspeakers or their set-up. Please contact

your nearest Deﬁnitive Technology dealer or contact us directly at

410-363-7148 or www.deﬁnitivetech.com.

Technical Assistance

Service and warranty work on your Deﬁnitive loudspeakers will

normally be performed by the Deﬁnitive Technology dealer from

whom you have purchased your loudspeakers. If, however, you wish

to return the speaker to us, please contact us ﬁrst, describing the prob-

lem and requesting authorization as well as the location of the nearest

factory service center. Please note that the address given in this

booklet is the address of our ofﬁces only. Under no circumstances

should loudspeakers be shipped to our ofﬁces or returned without

contacting us ﬁrst and obtaining return authorization.

Deﬁnitive Technology Ofﬁces

11433 Cronridge Drive

Owings Mills, Maryland 21117

Phone: 410-363-7148

Service

Visit us at www.deﬁnitivetech.com

VERY IMPORTANT: SETTING CHANNEL BALANCE AND BASS MANAGEMENT SYSTEMS

Dolby Digital and Dolby ProLogic systems and decoders have a critical channel balancing

procedure for the left and right front speakers, center channel, rears and subwoofer (if it is hooked

up through the LFE or Sub Out low level connection) which must be followed if the system is to

perform properly. We have spoken with many system users with problems relating to the overall

sound of their system which could be clearly traced back to improper system balance.

Also note that Dolby Digital decoders have bass management systems (systems which direct the

bass to the various channels) which vary from unit to unit. This bass management system must

also be properly adjusted. If your Mythos loudspeaker is hooked up with speaker level wires and

you are using a separate subwoofer, your receiver or decoder’s bass management system should

be set for “Small”left and right main speakers, “Small”center, “Small”surrounds, and “Yes”

subwoofer. If you are using rear surround speakers with very extended low frequency response,

set the rear channels of your decoder’s bass management system to “Large.”If not, set them to

“Small”. If you are using the Mythos speaker as a rear or side surround speaker, set the rear or

side surround bass management to “Small”. If you are using Mythos loudspeakers without a sepa-

rate subwoofer, set bass management to “Large” left and right main speakers, “Large” center,

“Large”surrounds, and “No”subwoofer

(Also, do not be afraid to experiment.) Remember,

whatever sounds best to you is correct.

All speciﬁcations subject to change.

Mythos Six

Dimensions 4.07" W x 4" D x 19.57" H

Frequency Response 60 Hz – 30 kHz

Efﬁciency: 89 dB

Nominal Impedance 4 – 8 ohms

Driver Complement Two 3.5" high-deﬁnition bass/midrange

drivers, two 3.5" pressure-driven planar low

frequency radiators, one 1" pure aluminum

dome tweeter

Recommended

Associated Ampliﬁcation 10 – 175 watts/channel

Magnetically Shielded

Mythos Seven

Dimensions 19.57" W x 4" D x 4.07" H

Frequency Response 60 Hz – 30 kHz

Efﬁciency: 89 dB

Nominal Impedance 4 – 8 ohms

Driver Complement Two 3.5" high-deﬁnition bass/midrange

drivers, two 3.5" pressure-driven planar low

frequency radiators, one 1" pure aluminum

dome tweeter

Recommended

Associated Ampliﬁcation 10 – 175 watts/channel

Magnetically Shielded

Mythos Loudspeakers Speciﬁcations

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