Manuale d’uso / di manutenzione del prodotto MX-SERIES del fabbricante MK Sound
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THX ® powered subwoofers Miller & Kreisel Sound Corporation 10391 Jefferson Boulevard Culver City, CA 90232 USA (310) 204-2854 FAX (310) 202-8782 © 1995 MILLER & KREISEL SOUND CORP. operation manual MX-SERIES: MX-150 THX V -SERIES: V -125 THX Manufactured under license from Lucasfilm Ltd.
page 2 THX subwoofers T ABLE OF CONTENTS 1. SAFETY INSTRUCTIONS ................................................................................................ 3 2. INTRODUCTION ........................................................................
THX subwoofers page 3 The exclamation point within an equi- lateral triangle is intended to alert the user of the presence of important op- erating and maintenance (servicing) instructions in the literature accom- panying the appliance.
page 4 THX subwoofers 2. INTR ODUCTION Congratulations! Your new M&K THX ® subwoofer truly represents the state-of-the-art in subwoofer performance.
THX subwoofers page 5 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.
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 switch to the "THX" position.
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).
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 your speakers.
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 amplifier and subwoofer.
page 10 THX subwoofers To connect the subwoofer, run shielded RCA - RCA interconnect cables from the outputs on your component to the "INPUT" jacks found on the subwoofer's backplate.
THX subwoofers page 11 DO NOT PLUG THE SUBWOOFER INTO A SWITCHED OUTLET ON ANOTHER COMPONENT. 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.
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.
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 to another.
page 14 THX subwoofers 9. USE OF SPIKED FEET WITH "MX" SUBW OOFERS 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 point at the other.
THX subwoofers page 15 2. If the midbass range (the area of transition between Subwoofer and Satellite or L/C/R speakers) 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.
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.
THX subwoofers page 17.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il MK Sound MX-SERIES è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del MK Sound MX-SERIES - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso MK Sound MX-SERIES imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul MK Sound MX-SERIES ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il MK Sound MX-SERIES, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del MK Sound MX-SERIES.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il MK Sound MX-SERIES. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo MK Sound MX-SERIES insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
