M&K Sound MX-150THX, V-125THX - Manuals

Page 2 - THX subwoofers; TABLE OF CONTENTS; CONNECTING THE SUBWOOFER TO A THX CONTROLLER; WIRING DIAGRAMS

page 2 THX subwoofers TABLE OF CONTENTS 1. SAFETY INSTRUCTIONS ................................................................................................ 3 2. INTRODUCTION .............................................................................................................. 4 3. WHERE ...

Page 3 - SAFETY INSTRUCTIONS; CAUTION

THX subwoofers page 3 The exclamation point within an equi-lateral triangle is intended to alert theuser of the presence of important op-erating and maintenance (servicing)instructions in the literature accom-panying the appliance. The lightning flash with arrowhead,within an equilateral triangle, i...

Page 4 - subwoofer truly represents the state-of-the-art in subwoofer; WHERE TO PLACE YOUR SUBWOOFER; need to place your subwoofer; OPERATION WITH THX COMPONENTS

page 4 THX subwoofers 2. INTRODUCTION Congratulations! Your new M&K THX ® subwoofer truly represents the state-of-the-art in subwoofer performance. The new dimension of deep and powerful bass it provides will both thrill and excite you. We strongly encourage you to read this owner's manual, as t...

Page 5 - FIGURE 1- WIRING ONE SUBWOOFER WITH A THX CONTROLLER; your controller has

THX subwoofers page 5 OUTPUT jack on your THX controller to the "LEFT/MONO" "INPUT" jack on the subwoofer'sbackplate. See Figure 1 below. Some THX controllers have a pair of stereo subwoofer outputs, while others have a single mono output. Your subwoofer is compatible with both types...

Page 6 - TO 400 WATTS FROM THE AC LINE. IT MUST BE PLUGGED INTO A SOLID AC LINE.; , this position is proper when two subwoofers are used in the system.

page 6 THX subwoofers TESTING THE SUBWOOFER (THX MODE) Once all of the interconnect cables are in place, you are just about ready to plug in the subwoofer. Set the "LOW PASS FILTER" toggle switch to the "THX" position and the "BASS LEVEL" toggle switchto the "THX" pos...

Page 7 - subwoofer, you must use two in your system to meet THX

THX subwoofers page 7 For the V-125 THX , the "CALIBRATED" level is 4 dB lower than the "THX" level (switch set to "THX"). Set the control to this mark if you have only one subwoofer in the system (such as in a very small room). On both the MX-150 THX and V-125 THX , the +2 a...

Page 8 - WIRING WITH A NON-THX PROCESSOR OR PREAMP; to connect to

page 8 THX subwoofers OPERATION OF THE "BASS LEVEL" SWITCH When using the subwoofer with a non-THX processor, preamp, etc., this switch should be set to the "VARIABLE" position. The subwoofer level can then be set independently to match yourspeakers. The "CALIBRATED" mark is ...

Page 9 - FIGURE 5 - WIRING ONE SUBWOOFER TO AN AMP; use one Y-connector for

THX subwoofers page 9 FIGURE 5 - WIRING ONE SUBWOOFER TO AN AMP OR PREAMP WITH ONE SET OF PREAMP OUTPUTS If your surround processor has only one PREAMP OUTPUT (and no SUBWOOFER OUT), and you do not have an M&K High-Pass Filter or crossover, you must use a Y-connector to feed the amplifierand sub...

Page 11 - AC LINE. IT MUST BE PLUGGED INTO A SOLID AC LINE.; or lower if you don't want to disturb your neighbors.

THX subwoofers page 11 DO NOT PLUG THE SUBWOOFER INTO A SWITCHED OUTLET ON ANOTHERCOMPONENT. THE SUBWOOFER CAN DRAW UP TO 400 WATTS FROM THE AC LINE. IT MUST BE PLUGGED INTO A SOLID AC LINE. Now, play some music through your system to make sure that the Satellite speakers are working properly. If th...

Page 12 - PHASING TEST METHOD ONE; FINE-TUNING THE PLACEMENT OF YOUR SUBWOOFER

page 12 THX subwoofers Here are two methods of setting the correct phase with your subwoofer. PHASING TEST METHOD ONE Set the switch labelled "SUBWOOFER PHASE" to the "+" position. Then, play a familiar CD, LP, laserdisc or tape with steady, consistent bass content. Listen carefully ...

Page 13 - SPECIAL METHOD FOR PLACING THE SUBWOOFER

THX subwoofers page 13 The amount and quality of bass you hear is dependent on the room itself. Low frequencies are affected by a room's size and type of construction. Rooms differ when it comes to reproducing bass,and in every room, bass quality changes when the subwoofer is moved from one location...

Page 14 - Make sure that the subwoofer is plugged into an AC outlet.

page 14 THX subwoofers 9. USE OF SPIKED FEET WITH "MX" SUBWOOFERS If your M&K THX subwoofer is an "MX" push-pull dual driver subwoofer, we have enclosed a hardware kit consisting of four black metal spikes, threaded at one end and tapering to a sharp pointat the other. Depending ...

Page 15 - If you hear a persistent hum or buzz through the subwoofer:

THX subwoofers page 15 2. If the midbass range (the area of transition between Subwoofer and Satellite or L/C/Rspeakers) sounds weak: See Section 7, PHASING TEST, on page 11. Reverse the position of the "SUBWOOFER PHASE" switch on the back panel of the subwoofer. The switch position that giv...

Page 16 - REPLACEMENT FUSE VALUES; IF YOU NEED SERVICE; DO NOT RETURN YOUR SPEAKERS TO THE FACTORY FOR; AMPLIFIER DISTORTION: Less than 0.03% from 20 to 125 Hz at full output; CABINET MAINTENANCE

page 16 THX subwoofers 0797MX150THX &V125THX.PM6 REPLACEMENT FUSE VALUES 110 VOLT 220 VOLT 220 VOLT (3 AG 1/4" x 1 1/4" slow blow) (5 X 20 mm IEC-127/III) MX-150 THX 4 amp 2 amp T 1.6 A (time-lag) V-125 THX 2 amp 1 amp T 800 mA (time-lag) 11. IF YOU NEED SERVICE Contact your dealer or M&...