Gebruiksaanwijzing /service van het product 2 van de fabrikant Crown
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Models: Power Base -1, 2 & 3 OFF POWER OFF POWER OFF POWER © 1996 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-294-8000. Power-Tech amplifiers are produced by the Professional Audio Division of Crown International, Inc.
WORLDWIDE SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQ.
Printed on recycled paper. The lightning bolt triangle is used to alert the user to the risk of electric shock. The exclamation point triangle is used to alert the user to important operating or maintenance instructions.
Power Base Series Power Amplifiers Page 4 CONTENTS 1 Welcome .......................................................................... 7 1.1 Unpacking ................................................................. 7 1. 2 Features .................
Power Base Series Power Amplifiers Page 5 ILLUSTRA TIONS 1.1 Power Base Front and Back Panels .................................... 7 2.1Three System Connection Methods ....................................... 8 2.2Do NOT Block Air Flow ................
Power Base Series Power Amplifiers Page 6.
Power Base Series Power Amplifiers Page 7 1 Welcome Congratulations on choosing a Power Base amplifier. Power Base amplifiers are compact, professional ste- reo power amplifiers engineered to meet the most de- manding sound reinforcement needs.
Power Base Series Power Amplifiers Page 8 MIXER LOUDSPEAKERS + – + – CHANNEL 1 CHANNEL 2 CHANNEL 1 CHANNEL 2 STEREO MODE BRIDGE-MONO MODE STEREO BRIDGE MONO PARALLEL MONO PARALLEL-MONO MODE MIXER .
Power Base Series Power Amplifiers Page 9 2 Installation Always remove power from the unit and turn the level controls off (fully counterclockwise) when making or breaking connections. This reduces the chance of blasts that can cause loudspeaker damage.
Power Base Series Power Amplifiers Page 10 2.3 Input Sensitivity Adjustment The input sensitivity switch inside the amplifier is set to 0.775 volts at the factory. It can be changed to 1.4 volts or a voltage gain of 26 dB as follows: 1. Turn off and unplug the amplifier from the AC source.
Power Base Series Power Amplifiers Page 11 3.3.1 ODEP Crown invented ODEP to keep the amplifier working under demanding conditions and to increase output efficiency. To do this, Crown established a rigorous pro- gram to measure each transistor’s safe operating area (SOA).
Power Base Series Power Amplifiers Page 12 The unit should never output heavy common-mode cur- rent unless its circuitry is damaged. Activating drive protection helps prevent further damage. 3.3.4 Transformer Thermal Protection All Power Base amplifiers have transformer thermal protection.
Power Base Series Power Amplifiers Page 13 4 Specifications All specifications apply to units in Stereo mode with 8-ohm loads and an input sensitivity of 26 dB unless otherwise specified. Standard 1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.
Power Base Series Power Amplifiers Page 14 Required AC Mains: Current, frequency and voltage requirements are provided on each unit’s back panel. All models draw 90 watts or less at idle. Power Base-1 : Draws up to 6 amps of current. Power Base- 2 : Draws up to 10 amps of current.
Power Base Series Power Amplifiers Page 15 8 Power Base-1 – Minimum Guaranteed Power (Watts) Stereo-Mono Mode Stereo (both channels driven) Bridge-Mono (balanced output) Parallel-Mono 16 4 0.1% THD + Noise (See note 4) 1 kHz 20Hz-20kHz 180 350 175 350 200 390 390 200 390 390 Maximum Average Load (Ohms) AC Mains 120 VAC, 60 Hz Units 1 kHz 0.
Power Base Series Power Amplifiers Page 16 8 Power Base -2 – Minimum Guaranteed Power (Watts) Stereo-Mono Mode Stereo (both channels driven) Bridge-Mono (balanced output) Parallel-Mono 16 4 FTC Continuous Average 0.
Power Base Series Power Amplifiers Page 17 Maximum Power Specifications Crown’s maximum power specifications represent the largest amount of output power you can expect from your amplifier when it is driven to full output under the given conditions.
Power Base Series Power Amplifiers Page 18 8 Power Base -2 – Maximum Power (Watts) Stereo-Mono Mode Stereo (both channels driven) Bridge-Mono (balanced output) Parallel-Mono 16 4 40 Millisecond Tone Burst 0.
Power Base Series Power Amplifiers Page 19 5 Accessories There are two accessories available at the time of this printing: the MT-XLR and the MT-BB . Important: The MT-XLR and MT-BB must be installed at a Crown Factory Service Center or the Crown factory.
Power Base Series Power Amplifiers Page 20 6 Ser vice This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. This is one reason why each unit bears the following label: CAUTION: To prevent electric shock, do not re- move covers.
Power Base Series Power Amplifiers Page 21 Crown Factor y Ser vice Information Shipping Address: Crown International, Inc., Factory Service, Plant 2 SW, 1718 W.
Een belangrijk punt na aankoop van elk apparaat Crown 2 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Crown 2 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Crown 2 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Crown 2 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Crown 2 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Crown 2 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Crown 2 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Crown 2 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
