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Coustic 481QE manual

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Table of contents for the manual

  • Page 1

    321QE & 481QE AMPLIFIER OWNER’S MANUAL (MODE D’EMPLOI) 877 COUSTIC COUSTIC.COM[...]

  • Page 2

    WELCOME . . . to the Coustic world of power and clarity . These new Coustic 321QE and 481QE 4-channel power amplifiers deliver the cleanest music you’ve ever heard at any power level in the 12-volt environment. Besides their sleek contoured design, the new 321QE/481QE power amplifiers offer the latest and most sophisticated audio features. This m[...]

  • Page 3

    CONTROLS, INDICA TORS, AND TERMINALS INPUT P ANEL Figure 1: Input P anel T er minals and Controls 1. FRONT CHANNEL FIL TER MODE SELECT SWITCH (MODE) "HPF": Slide switch to this position if the amplifier is used as a mid/tweeter amplifier . "OFF": Slide switch to this position if the amplifier is used as a full-range amplifier . [...]

  • Page 4

    COUSTIC.COM 7 INST ALLA TION By purchasing the 4-channel 321QE/481QE amplifier , you are already one step closer to experi- encing the purest and most natural sound quality in the automobile environment. T o take full advan- tage of the potential of this amplifier , before installation, we strongly recommend that you acquaint yourself with all its [...]

  • Page 5

    COUSTIC.COM 9 CD-328 CD Changer Control + R + 321QE/481QE Coustic Coaxial Coustic Coaxial + R (crossover set to OFF position) Front Rear CD-328 CD Changer Control + R 321QE/481QE + Coustic Coaxial Coustic Subwoofer + R (crossover: front set @ 100Hz Hi-Pass, rear set @ 100Hz Lo-Pass) Front Rear Figure 7. T ypical High/Low P ass System with one ampli[...]

  • Page 6

    FOR BRIDGED (MONO) MODE Note: For bridged mono mode, we recommend a total load of 4 or 8 ohms. 1. Connect the front left positive ("+") speaker output of the amplifier to the positive input terminal of the speaker . 2. Connect the front right negative ("–") speaker output of the amplifier to the negative input termi- nal of th[...]

  • Page 7

    COUSTIC.COM 13 ADJUSTMENTS CROSSOVER SELECTION The amplifier has built-in high-pass/low-pass filters for both front and rear channels that can be defeated by sliding the switch to the OFF position. 1. When the high-pass is selected, the amplifier will be devoted to mid/tweeters. 2. When the low-pass is selected, the amplifier will be used to drive [...]

  • Page 8

    COUSTIC.COM 15 Figure 14: Input Sensitivity Control 1. T urn the Input Sensitivity Control all the way down (counter clockwise). 2. Set the volume control of the source unit to approximately 2 ⁄ 3 of its maximum output. 3. T urn the balance control of the source unit to its center position. 4. Leave the tone (bass/treble) controls at their usual [...]

  • Page 9

    SYMPTOM PROBABLE CAUSE 9. Constant level whining Check for a ground loop in the system. T urn the system off noise (most noise with and one by one change the ground connections (by source unit volume at changing to a different contact point,scraping the level minimum) constant irrespective of metal clean of any paint, rust or grease). T urn the sys[...]

  • Page 10

    COUSTIC.COM 19 BIENVENU ...Chez COUSTIC, un univers de puissance et de clarté. Les nouveaux amplis 4 canaux 321/481QE délivrent la puissance la plus parfaite de toute l’industrie du ”12 volts”. En plus d’un fantastique design, les 321/481QE sont construits avec les technologies les plus récentes et les plus sophistiqués. Dans ce manuel,[...]

  • Page 11

    COUSTIC.COM 21 CONTRÕLES, INDICA TEURS ET CONNECTEURS P ANNEAU DES ENTRÉES ET DES CONFIGURA TIONS Figure 1: P anneau des entrées et des réglages 1. Sélecteur du filtre actif avant Position ”HPF” : Filtre passe haut pour des haut-parleurs avant ou arrière Position ”OFF” : Filtre déconnecté, l’ampli passe tout le signal sans filtrag[...]

  • Page 12

    COUSTIC.COM 23 INST ALLA TION En achetant le 321/481QE, vous avez déjà fait un grand pas vers un son pur et naturel. A vant de passer à l’installation et pour bénéficier de tout le potentiel de votre ampli, nous vous recomman- dons de lire attentivement ce manuel pour bien connaître toutes les fonctions disponibles. Nous vous recommandons d[...]

  • Page 13

    Figure 7 : Système HP à l’a vant plus sub a v ec un seul ampli COUSTIC.COM 25 CD-328 CD Changer Control + R + 321QE/481QE Coustic Coaxial Coustic Coaxial + R (crossover set to OFF position) Front Rear CD-328 CD Changer Control + R 321QE/481QE + Coustic Coaxial Coustic Subwoofer + R (crossover: front set @ 100Hz Hi-Pass, rear set @ 100Hz Lo-Pass[...]

  • Page 14

    COUSTIC.COM 27 MONT AGE PONTÉ (MINIMUM 4 Ω ) Nous recommandons une impédance de 4 ou 8 Ω 1. Brancher le connecteur ”+” du subwoofer à la borne ”L +” 2. Brancher le connecteur ”-” du subwoofer à la borne ”R -” 3. Recommencer pour les canaux arrière 4. Vérifier que tous les RCA sont bien connectés pour obtenir une bonne ré[...]

  • Page 15

    COUSTIC.COM 29 RÉGLAGES SÉLECTION DU TYPE DE FIL TRAGE Les amplis sont équipés d’un filtre actif passe haut ou passe bas réglable 1. En position ”High Pass” (passe haut), le filtre ne laisse passer que les fréquences hautes destinées aux haut-parleurs avant ou arrière. 2. En position ”Low Pass” (passe bas), le filtre ne laisse pas[...]

  • Page 16

    COUSTIC.COM 31 Figure 14 : Réglage de la sensibilité 1. T ournez le réglage à fond dans le sens contraire des aiguilles d’une montre (minimum) 2. Montez le volume de votre autoradio à 2 ⁄ 3 du volume maxi 3. Vérifiez que la balance et le fader soit bien au centre 4. Vérifiez que les réglages de grave et d’aigu sont à zéro 5. Prenez [...]

  • Page 17

    COUSTIC.COM 33 Symptôme Cause probable 9. Bruit de fonctionnement à Il faut chercher les boucles de masses en changement chaque point bas niveau de masse l’un après l’autre. A TTETION : il ne faut pas débrancher la masse lorsque l’ampli est en fonction nement. Cela pourrait l’endommager . Vérifier les câbles RCA qui pourraient être e[...]

  • Page 18

    COUSTIC LIMITED W ARRANTY IMPORT ANT NOTICE TO CONSUMER: Coustic offers the following warranty to the ORIGINAL PURCHASER of COUSTIC products, pur- chased from an authorized Coustic dealer , within the period stated herein: Coustic warrants the 161SE, 241SE, 401SE, 601SE, 481QE, 321QE amplifiers against defects in material and workmanship for a peri[...]

  • Page 19

    COU000769 RevB 1/02 NDM195 ©2002. COUSTIC IS A REGISTERED TRADEMARK OF MITEK CORPORA TION. ALL RIGHTS RESERVED. 7676 SOUTH 46 STREET , SUITE 2020, PHOENIX, AZ 85042 TOLL FREE 877 COUSTIC TELEPHONE 602 438 2020 F ACSIMILE 602 438 7313 coustic.com[...]