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page 10

THX subwoofers

WIRING WITH THE M&K HP-80 OR VF-80 HIGH-PASS FILTERS (NON-THX

)

The M&K HP-80 and VF-80 High-Pass Filters can improve the sound of systems by filtering the bass

fed to the main amp and Satellite speakers.  These filters will give your system greater dynamic range,
lower distortion, and an increased maximum output.  To use these filters with an integrated amp
or receiver, the amp or receiver MUST have back panel RCA jacks labelled PREAMP/MAIN
OUTPUT  and  POWER AMP/MAIN INPUT.
  You may have to remove jumper connections or throw
a switch to do this.   If you have any questions about your components, contact your dealer or M&K.

For non-THX systems, your subwoofer is optimized for use with the HP-80 High-Pass Filter.

We strongly recommend that you use this filter (and set the "LOW PASS FILTER" toggle switch to the
"80 Hz 24 dB/OCTAVE" position) if your system components allow for its use.  When the subwoofer
is used with an HP-80 and M&K Satellites, the combination forms a 4th order Linkwitz-Riley crossover
between satellite and subwoofer. The linear phase of this crossover means uncompromised
performance and great flexibility in system setup, with no elaborate calibration or adjustment needed.

Do not use either of these filters with a THX controller.  The THX controller has the appropriate filters

in its built-in crossover circuitry.  Do not use a SUBWOOFER OUTPUT jack on your amp or processor

FIGURE 5 - WIRING ONE SUBWOOFER TO AN AMP

OR PREAMP WITH ONE SET OF PREAMP OUTPUTS

FIGURE 6 - WIRING TWO SUBWOOFERS TO AN AMP

OR PREAMP WITH ONE SET OF PREAMP OUTPUTS

use one Y-connector for

each channel to split the

output of the preamp

PREAMP

POWER AMP

RIGHT

LEFT

MAIN IN

RIGHT

LEFT

10391 Jefferson Blvd

Culver City, CA 90232 

310/204-2854

MILLER & KREISEL

SOUND CORP.

RIGHT

INPUT

REFERENCE

80 Hz

24 dB/

OCTAVE

Made in U.S.A.

T

   6 AMP

120 VAC 

50/60 Hz

LEFT/MONO

SLOW-BLOW

ATTENTION:

DEBRANCHER AVANT DE

REMPLACER LE FUSIBLE.

UTILIZER UN FUSIBLE

DE RECHANGE

DE MEME TYPE.

CAUTION:

DISCONNECT SUPPLY CORD

BEFORE CHANGING FUSE.

REPLACE FUSE ONLY

WITH SAME TYPE.

CAUTION

RISK OF ELECTRIC

SHOCK

DO NOT OPEN

AVIS: 

RISQUE DE

CHOC ELECTRIQUE.

NE PAS OUVRIR.

Manufactured under license

from Lucasfilm Ltd.

  Lucasfilm and THX are

registered trademarks 

of Lucasfilm Ltd.

EXTENDED

THX

+

–

PHASE

THX MODE

NO LOW

PASS FILTER

LOW PASS FILTER

+3 dB

+6 dB

BASS LEVEL

 BASS EQ

50

75  

60 

125

 100

V

A

R

I

A

B

L

E

VARIABLE

THX

CENTER SWITCH

POSITION FOR

VARIABLE

LOW PASS

MX-350

THX 

POWERED SUBWOOFER

use one Y-connector

for each channel

to split the output

of the preamp

RIGHT

LEFT

PREAMP

MAIN OUT

POWER AMP

RIGHT

LEFT

MAIN IN

10391 Jefferson Blvd

Culver City, CA 90232 

310/204-2854

MILLER & KREISEL

SOUND CORP.

RIGHT

INPUT

REFERENCE

80 Hz

24 dB/

OCTAVE

Made in U.S.A.

T

   6 AMP

120 VAC 

50/60 Hz

LEFT/MONO

SLOW-BLOW

ATTENTION:

DEBRANCHER AVANT DE

REMPLACER LE FUSIBLE.

UTILIZER UN FUSIBLE

DE RECHANGE

DE MEME TYPE.

CAUTION:

DISCONNECT SUPPLY CORD

BEFORE CHANGING FUSE.

REPLACE FUSE ONLY

WITH SAME TYPE.

CAUTION

RISK OF ELECTRIC

SHOCK

DO NOT OPEN

AVIS: 

RISQUE DE

CHOC ELECTRIQUE.

NE PAS OUVRIR.

Manufactured under license

from Lucasfilm Ltd.

  Lucasfilm and THX are

registered trademarks 

of Lucasfilm Ltd.

EXTENDED

THX

+

–

PHASE

THX MODE

NO LOW

PASS FILTER

LOW PASS FILTER

+3 dB

+6 dB

BASS LEVEL

 BASS EQ

50

75  

60 

125

 100

V

A

R

I

A

B

L

E

VARIABLE

THX

CENTER SWITCH

POSITION FOR

VARIABLE

LOW PASS

MX-350

THX 

POWERED SUBWOOFER

10391 Jefferson Blvd

Culver City, CA 90232 

310/204-2854

MILLER & KREISEL

SOUND CORP.

RIGHT

INPUT

REFERENCE

80 Hz

24 dB/

OCTAVE

Made in U.S.A.

T

   6 AMP

120 VAC 

50/60 Hz

LEFT/MONO

SLOW-BLOW

ATTENTION:

DEBRANCHER AVANT DE

REMPLACER LE FUSIBLE.

UTILIZER UN FUSIBLE

DE RECHANGE

DE MEME TYPE.

CAUTION:

DISCONNECT SUPPLY CORD

BEFORE CHANGING FUSE.

REPLACE FUSE ONLY

WITH SAME TYPE.

CAUTION

RISK OF ELECTRIC

SHOCK

DO NOT OPEN

AVIS: 

RISQUE DE

CHOC ELECTRIQUE.

NE PAS OUVRIR.

Manufactured under license

from Lucasfilm Ltd.

  Lucasfilm and THX are

registered trademarks 

of Lucasfilm Ltd.

EXTENDED

THX

+

–

PHASE

THX MODE

NO LOW

PASS FILTER

LOW PASS FILTER

+3 dB

+6 dB

BASS LEVEL

 BASS EQ

50

75  

60 

125

 100

V

A

R

I

A

B

L

E

VARIABLE

THX

CENTER SWITCH

POSITION FOR

VARIABLE

LOW PASS

MX-350

THX 

POWERED SUBWOOFER

Summary of Contents for MX-350THX

Page 1: ...91 Jefferson Boulevard Culver City CA 90232 USA 310 204 2854 FAX 310 202 8782 1997 MILLER KREISEL SOUND CORP operation manual Manufactured under license from Lucasfilm Ltd Lucasfilm and THX are regist...

Page 2: ...REAMP 8 USING THE SUBWOOFER WITH THE M K HP 80 OR VF 80 HIGH PASS FILTERS 10 TESTING THE SUBWOOFER NON THX 11 SETTING SUBWOOFER LEVEL NON THX 11 USING TWO SUBWOOFERS NON THX 11 7 SATELLITE SUBWOOFER P...

Page 3: ...ower company 9 OVERLOADING Do not overload wall outlets or extension cords as this can result in a risk of fire or electric shock 10 LIQUID ENTRY Never spill any liquid of any kind on the product 11 S...

Page 4: ...t to the subwoofer you will not hear it as a separate source of sound In fact its deep bass will appear to come from your other speakers Therefore there is no need to place your subwoofer either betwe...

Page 5: ...Lucasfilm and THX are registered trademarks of Lucasfilm Ltd EXTENDED THX PHASE THX MODE NO LOW PASS FILTER LOW PASS FILTER 3 dB 6 dB BASS LEVEL BASS EQ 50 75 60 125 100 V A R I A B L E VARIABLE THX...

Page 6: ...HE AC LINE IT MUST BE PLUGGED INTO A SOLID AC LINE 5 CALIBRATING THE SUBWOOFER THX On the back panel of the subwoofer four toggle switches allow you to select various modes of operation Three are desc...

Page 7: ...S THX Using two subwoofers in your THX system will give you the ultimate in bass performance It will give you improved bass impact and definition as well as greater output and dynamic range If you loc...

Page 8: ...tput below about 30 Hz Its in room output will increase as you go lower in frequency due to a phenomenon known as room gain Room gain means that the bass produced by a subwoofer in a room actually inc...

Page 9: ...SOUND CORP RIGHT INPUT REFERENCE 80 Hz 24 dB OCTAVE Made in U S A T 6 AMP 120 VAC 50 60 Hz LEFT MONO SLOW BLOW ATTENTION DEBRANCHER AVANT DE REMPLACER LE FUSIBLE UTILIZER UN FUSIBLE DE RECHANGE DE ME...

Page 10: ...E CAUTION DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE REPLACE FUSE ONLY WITH SAME TYPE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR Manufactured under licens...

Page 11: ...he BASS LEVEL control where the subwoofer sounds in balance with the Satellite speakers If the system is not working properly unplug the subwoofer and check all of your connections Call your dealer or...

Page 12: ...woofer PHASING TEST METHOD ONE Set the switch labelled PHASE to the position Then play a familiar CD LP laserdisc or tape with steady consistent bass content Listen carefully to the mid bass region of...

Page 13: ...ikely to give the best overall bass response A corner location will give you maximum bass output and sonic excitement as well as a standard to compare with if you move the subwoofer around In some roo...

Page 14: ...e four corners of the cabinet s bottom The inserts are 1 4 20 that is 1 4 inch in diameter and 20 threads per inch This is compatible with the majority of alternative spikes cones tip toes etc offered...

Page 15: ...t cables to the subwoofer but leave it plugged into the AC outlet Set the BASS LEVEL switch to the VARIABLE position Carefully turn the BASS LEVEL control up towards the MAX position If you hear hum f...

Page 16: ...rable to new owners up to three years from the date of original purchase It does not cover abuse misuse speakers purchased from unauthorized dealers repairs by unauthorized service stations speakers w...

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