MK Sound MX-5000THX Mk II, MX-350THX operation manual Wiring ONE Subwoofer with a THX Controller

THX subwoofers page 5

To connect the subwoofer, run a shielded RCA - RCA interconnect cable from the SUBWOOFER OUTPUT jack on your THX controller to the "LEFT/MONO" "INPUT" jack on the subwoofer's backplate. 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. If your THX controller has stereo subwoofer outputs, use a stereo shielded cable, connecting it to the LEFT and RIGHT "INPUT" terminals on the subwoofer. If your THX controller has only a single mono subwoofer output, use a mono cable and connect it to the subwoofer's "LEFT/MONO" "INPUT" jack. See Figure 1 below.

Do not use a Y-connector to connect the signal to both the LEFT and RIGHT inputs of the subwoofer. These inputs are summed to mono in the amplifier input stage, and if they are combined, the result will be too much gain and bass level.

FIGURE 1- WIRING ONE SUBWOOFER WITH A THX CONTROLLER

SUBWOOFER OUT

THX

CONTROLLER

	LOW PASS FILTER			PHASE			BASS EQ		BASS LEVEL
			THX MODE	+	LEFT/MONO		THX	THX	REFERENCE
V			NO LOW			RIGHT				+3 dB
	￿￿￿￿		PASS FILTER
A		￿￿￿￿			INPUT					+6 dB
R
I
A	￿￿￿		80 Hz
B				–			EXTENDED	VARIABLE
L			24 dB/
E	￿￿	￿￿￿ OCTAVE			MX-350THXPOWERED SUBWOOFER
CENTER SWITCH
	POSITION FOR
	VARIABLE
	LOW PASS
									Manufactured under license
	CAUTION								Lucasfilm and THX are
									from Lucasfilm Ltd.
RISK OF ELECTRIC									registered trademarks
	SHOCK								of Lucasfilm Ltd.
	DO NOT OPEN								Made in U.S.A.
AVIS: RISQUE DE
CHOC ELECTRIQUE.
	NE PAS OUVRIR.
									CAUTION:
									DISCONNECT SUPPLY CORD
									BEFORE CHANGING FUSE.
									REPLACE FUSE ONLY
									WITH SAME TYPE.
									ATTENTION:
									DEBRANCHER AVANT DE
									REMPLACER LE FUSIBLE.
									UTILIZER UN FUSIBLE
									DE RECHANGE
120 VAC									DE MEME TYPE.
50/60 Hz
									MILLER & KREISEL
									SOUND CORP.
									10391 Jefferson Blvd
									Culver City, CA 90232
T 6 AMP									310/204-2854

SLOW-BLOW

FIGURE 2 - WIRING TWO SUBWOOFERS WITH A THX CONTROLLER

THX CONTROLLER

SUBWOOFER OUT

use a Y-connector if your controller has only one subwoofer output jack

	LOW PASS FILTER		PHASE			BASS EQ		BASS LEVEL
		THX MODE						REFERENCE
			+	LEFT/MONO		THX	THX
V		NO LOW			RIGHT			+3 dB
	￿￿￿￿	PASS FILTER
A				INPUT				+6 dB
R		￿￿￿￿
I
A	￿￿￿	80 Hz
B			–			EXTENDED	VARIABLE
L		24 dB/
E	￿￿	￿￿￿ OCTAVE		MX-350THXPOWERED SUBWOOFER
CENTER SWITCH
	POSITION FOR
	VARIABLE
	LOW PASS

	LOW PASS FILTER			PHASE			BASS EQ		BASS LEVEL
			THX MODE	+	LEFT/MONO		THX	THX	REFERENCE
V			NO LOW			RIGHT			+3 dB
	￿￿￿￿		PASS FILTER
A					INPUT				+6 dB
		￿￿￿￿
R
I
A	￿￿￿		80 Hz
B				–			EXTENDED	VARIABLE
L			24 dB/
E	￿￿	￿￿￿	OCTAVE		MX-350THXPOWERED SUBWOOFER
CENTER SWITCH
	POSITION FOR
	VARIABLE
	LOW PASS

	Manufactured under license
CAUTION	from Lucasfilm Ltd.
	Lucasfilm and THX are
RISK OF ELECTRIC	registered trademarks
SHOCK	of Lucasfilm Ltd.
DO NOT OPEN	Made in U.S.A.
AVIS: RISQUE DE
CHOC ELECTRIQUE.
NE PAS OUVRIR.
	CAUTION:
	DISCONNECT SUPPLY CORD
	BEFORE CHANGING FUSE.
	REPLACE FUSE ONLY
	WITH SAME TYPE.
	ATTENTION:
	DEBRANCHER AVANT DE
	REMPLACER LE FUSIBLE.
	UTILIZER UN FUSIBLE
	DE RECHANGE
120 VAC	DE MEME TYPE.
50/60 Hz
	MILLER & KREISEL
	SOUND CORP.
	10391 Jefferson Blvd
	Culver City, CA 90232
T 6 AMP	310/204-2854

SLOW-BLOW

CAUTION

RISK OF ELECTRIC

SHOCK

DO NOT OPEN

AVIS: RISQUE DE CHOC ELECTRIQUE.

NE PAS OUVRIR.

120 VAC 50/60 Hz

T6 AMP

SLOW-BLOW

Manufactured under license

from Lucasfilm Ltd. Lucasfilm and THX are registered trademarks of Lucasfilm Ltd.

Made in U.S.A.

CAUTION:

DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE.

REPLACE FUSE ONLY

WITH SAME TYPE.

ATTENTION:

DEBRANCHER AVANT DE REMPLACER LE FUSIBLE.

UTILIZER UN FUSIBLE

DE RECHANGE

DE MEME TYPE.

MILLER & KREISEL

SOUND CORP.

10391 Jefferson Blvd

Culver City, CA 90232

310/204-2854

If you have two subwoofers, do not use a Y - connector to feed both inputs on each subwoofer. Connect the interconnect cable to the LEFT/MONO "INPUT" only. Run the Left interconnect cable