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Crown Audio MA-24X6 - page 1
Operation Manual MA-24X6 Obtaining Other Language Versions: T o obtain inform ation in another lan guage about th e use of this pro duct, please contac t your local C rown Dist ribut or . If you need a ssista nce loca ting yo ur local distr ibutor , please contact Crown at 574-294- 8000. This manual does n ot include all of the details of design, p ...
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Crown Audio MA-24X6 - page 2
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water . 6) Clean only with a dry cloth. 7) Do not block any ventilation openings. Install in accordance with the manufac turer’ s inst ...
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Crown Audio MA-24X6 - page 3
page 3 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l DECLARA TION of CONFORMITY Crown International, Inc. TCF T echnical Certificate No: P4300CRI1.IWS Sue Whitfield 574-294-8289 swhitfield@crownintl.com European Repr esentative's Name and Address: Nick Owen 19 Clos Nant Coslech Pontprennau Cardiff CF23 8ND United Kingdom C ...
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Crown Audio MA-24X6 - page 4
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 4 Important Safety Instructions ............ ............. ......... ............ ............ ............ ............ ... 2 Declaration of Conformi ty ............... ............ ............ ............ .......... ............ ............ ..... 3 1 Welcome .............. ...
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Crown Audio MA-24X6 - page 5
page 5 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 1 We lcome Congratulations on your purchase of a Macro- Te c h ® dual level professional power amplifier . Y our amplifier has a separate high-power and medium-power channel, making it ideal for biamplified systems. The Macro-T ech 24x6 combines one channel of a Macro-T ech ...
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Crown Audio MA-24X6 - page 6
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 6 19 in 48.3 cm 16 in 40.6 cm 3.5 in 8.9 cm 2.5 in 6.35 cm SIDE VIEW 2.1 Unpack Y our Amplifier Please unpack and inspect your amplifier for any damage that may have occurred during transit. If dama ge is found, notify the transpor- tation company immediately . Only you can ini ...
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Crown Audio MA-24X6 - page 7
page 7 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 2.4 Choose Input Wire and Conn ector s Figure 2.3 shows connector pin assignments for balanced wiring, and Figure 2.4 shows connec- tor pin assignments for unbalanced wiring. NOTE: Custom wiring should only be performed by qu alified personnel. Balanced Line Unbalanced Line F ...
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Crown Audio MA-24X6 - page 8
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 8 CH-2 OUTPUTS CH-1 2.5 Choose Output Wire and Con- nectors Crown recommends using pre-built or profes- sionally wired, high-qu ality , two-conductor , heavy gauge speaker wire and connectors. Y ou may use banana connectors, terminal forks or bare wire for your output connector ...
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Crown Audio MA-24X6 - page 9
page 9 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 2.6 Wire Y our System This section describes the most common way to install the Macro-T ech 24X6 and 36X12. Each model is designed for biamplif ied systems and includes both a high-power and a medium- power channel. Because each channel produces a dif ferent power level, the ...
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Crown Audio MA-24X6 - page 10
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 0 2.7 Connect to AC Mains Connect the AC power cordset of your ampl ifier to the AC mains power source (power outlet). NOTE: The third prong of this connecto r (ground) is an important s afety feature. Do not attempt to disable this ground connection by using an adapter or ot ...
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Crown Audio MA-24X6 - page 11
page 1 1 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 3.1 Precautions Y our Macro-T ech Series amplifier is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety: 1. Before use, your amplifier first must be con- figured for proper oper ation, includi ...
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Crown Audio MA-24X6 - page 12
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 2 3.2 Front P anel Controls and Indic ator s A. Dust Filter Removes large particles from the air at the air intake. The filt er elements can be easily removed for cleaning by gently pulling them away from the front panel. B. Level Control Rotary detented level control, one pe ...
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Crown Audio MA-24X6 - page 13
page 1 3 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 3.3 Back P anel Controls and Connectors G. Power Cord 120 V A C, 60 Hz units have a 20-amp (12 A W G) line cord with a grounded NEMA 5-15P plug. See Section 8 for AC power usage. H. Reset Switches The reset switches are used to reset the break- ers that safeguard each power ...
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Crown Audio MA-24X6 - page 14
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 4 NOTE: For detailed information about these Crown amplifier features, please consult the Crown Amplifier Application Guide , available on the Crown website at www .crownaudio.com 4.1 Protection Systems Y our Crown amplifier provides extensive pro- tection and diagnostic capa ...
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Crown Audio MA-24X6 - page 15
page 1 5 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 4.1.4 T ransformer Thermal Protection All Macro-T ech amplifiers have transformer thermal protection. It protects the power sup- plies from damage under th e rare con ditions of transformer temperatures rising too high. A thermal switch embedded in ea ch transformer removes ...
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Crown Audio MA-24X6 - page 16
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 6 4.3 Options 4.3.1 PIP Modules Versatile P IP (Programmable Input Processor) modules provide flexible expansion features that can be added to customize the amplifier . PIP modules plug into the connecto r inside the back panel of the amplifier . PIP modules are available wit ...
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Crown Audio MA-24X6 - page 17
page 1 7 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 5.1 Indicators The front panel has several helpful indicator LEDs (Figure 5.1). The amber Enable indicator is provided to show the amplifier has been turned on (or enabled) and that its low voltage power supply and forced-air cooling system are working. It does not indicate ...
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Crown Audio MA-24X6 - page 18
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 8 Figure 5.2 ODEP and Signal /IOC Indicato r S tates 5 T roubleshooting ...
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Crown Audio MA-24X6 - page 19
page 1 9 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l Each channel is powered by its own power transformer , T100 or T200. Both channels share TF-1, a low voltage transformer . The sec- ondary outputs of each transformer are full- wave rectified by heavy duty bridge rectifiers and are filtered by large computer grade capac- it ...
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Crown Audio MA-24X6 - page 20
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 0 6 Theor y of Operation ONL Y ONE CHANNEL SHOWN NPN HI OUTPUT STAGE NPN L OW OUTPUT STAGE PNP L OW OUTPUT STAGE PNP HI OUTPUT STAGE + OUTPUT +Vcc –Vcc TRANSLATOR LV A LV A +Vcc –Vcc BIAS CURRENT LIMIT TRANSLATOR BALANCE INPUT STAGE P.I.P. BALANCED INPUTS XLR VARIABLE GAI ...
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Crown Audio MA-24X6 - page 21
page 2 1 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 7 Specifications Minimum Guaranteed P ower 120V A C, 60 Hz Units Macro-T ech 24X6 Macro-T ech 36X12 International Units Macro-T ech 24X6 Macro-T ech 36X12 Power in watts per channel,1 kHz, 0.1% THD Channel 1 2 ohms per ch. 4 ohms per ch. 8 ohms per ch. 1050W 800W 520W 1800W ...
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Crown Audio MA-24X6 - page 22
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 2 Perf ormance (continued) Macro-T ech 24X6 Macro-T ech 36X12 Output Impedance See Figure 7.3 See Figure 7.3 Load Impedance (Note: Safe with all types of loads) 2, 4, 8, 16 ohms 2, 4, 8, 16 ohms Voltage Gain (8-ohm load, rated ou tput at 1 kHz, maximu m level setting) 83:1 ± ...
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Crown Audio MA-24X6 - page 23
page 2 3 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l +45˚ 0˚ –45˚ 100 1 K 10 K 20 K FREQUENCY (Hz) 7 Specifications 10 100 1 K 10 K 100 K FREQUENCY (Hz) +2 +1 0 –1 –2 –3 –4 dB –5 –6 –7 4 ohm 8 ohm 1 watt 504.0 126.8 31.8 MILLIOHMS 8.0 2.0 6 dB 20 100 1 K 10 K 20 K 400 200 100 0 600 800 1000 1200 1400 FREQUE ...
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Crown Audio MA-24X6 - page 24
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 4 This section provides detailed information about the amount of power and current drawn from the Macro-T ech 24X6 and 36X12 amplifiers and the amount of heat produced under vario us conditions. The calculations presented here are intended to provide a realistic and reliable ...
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Crown Audio MA-24X6 - page 25
page 2 5 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l Figure 8.1 Macro-T ech 24X6 Power Draw, Current Draw and Thermal Dissipation at Various Duty Cycles Figure 8.2 Macro-T ech 36X1 2 Power Draw, Current Draw and Thermal Dissipation at Varioius Duty Cycles 8 AC Power Draw and Thermal Dissipation ...
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Crown Audio MA-24X6 - page 26
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 6 Crown amplifiers are quality units that rarely require servicing. Before returning your unit for servicing, please contact Crown T echnical Support to verify the need for servicing. This unit has very sophisticated circuitr y which should only be serviced by a fully trained ...
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Crown Audio MA-24X6 - page 27
page 2 7 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l YEAR 3 SUMMAR Y OF W ARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4 095 U.S.A. w arrants to you, the O RIGINAL PU RCHASER and AN Y SUB- SEQUENT OWNER of each NEW Crown product, for a period of three (3) years f rom the date of purchase by th ...
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Crown Audio MA-24X6 - page 28
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 8 YEAR 3 10 Warranty WORLDWIDE EXCEPT USA & CANADA SUMMAR Y OF W ARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4 095 U.S.A. w arrants to you, the ORIGINAL PURCHASER and ANY SUB- SEQUENT OWNER of each NEW Crown1 product, for a period of thre ...
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Crown Audio MA-24X6 - page 29
page 2 9 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l Crown Factor y Service Information Shipping Address: Crown Facto ry Ser vice, 1718 W . Mishawaka Rd., Elkhar t, IN 46517 Phone: 1-800-342 -6939 or 1-574- 294-8200 Fax: 1-574- 294-8124 Owner’ s Name : ___________________ _____________ ___________ ______________ ___________ ...
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Crown Audio MA-24X6 - page 30
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Crown Audio MA-24X6 - page 31
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Crown Audio MA-24X6 - page 32
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 3 2 ...
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