Instruction/ maintenance manual of the product MFA-8000 Ashly
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MF A-8000 MF A-6000 Power Amplifier Operating Manual ASHL Y AUDIO INC. 847 Holt Road W ebster , NY 14580-9103 Phone: (716) 872-0010 T oll-Free: (800) 828-6308 Fax: (716) 872-0739 Internet: http://www .
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 2 T abl e Of Contents 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNP ACKING . . . . . . . . . . . . . . . . . . . . . .
3 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier Caut ion: This power amplifier can produce danger ous output voltage levels, high power levels, and high sound pr essure levels in loudspeakers.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 4 1. INTRODUCTION The MF A Series amplifiers achieve the very high ener gy levels used in today’ s professional sound systems, carefully maintaining control and accuracy while deliv- ering high power to modern loudspeaker configurations.
5 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier peaking at the clipping level, the following AC line cur- rent capacities are recommended for system design pur- poses: Load MF A-6000 MF A-8000 Idle 1 Amp 1.2 Amps 8 Ω × 2 7.5 Amps 10 Amps 4 Ω × 2 10 Amps 15 Amps 2 Ω × 2 15 Amps 20 Amps T able 3.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 6 6. FRONT P ANEL FEA TURES 6.1 Power Switch When the unit is switched on there is a 2 second delay , during which time the PROTECT and LIMIT cir- cuits will activate. The load is disconnected during this power -up sequence, and the input signal is attenuated.
7 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 6.5 Thermal Indicator This yellow LED indicates that the internal tem- perature of the amplifier is too high in one or more places. Intensity of the LED is proportional to temperature above normal.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 8 7. REAR P ANEL FEA TURES 7.1 Inputs The standard input panel of the MF A series amps is equipped with balanced 1/4" tip-ring-sleeve (TRS) phone jacks, balanced XLR jacks, and balanced screw- terminal inputs.
9 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier Input Gr ound The CHASSIS GROUND terminal is internally connected to the chassis, the AC earth ground, and the power amplifier ’ s signal ground. The INPUT GROUND terminal is tied to the XLR pin 1 and the 1/4" jack sleeve.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 10 7.6 Speaker Outputs - Speakon Connectors Neutrik Speakon connectors are provided to con- nect with the Neutrik NL4FC 4-conductor plug.
11 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier Limiter In/Out Le v el Ch a nnel 2 (+) (-) In p u t G roun d C ha ssi s Ground (-) (+) Le v el Limiter In/Out Chann el 1 ( M ono ) CL-2 POW ERCARD Input Optio n Stereo Li mi ter 10 0 1 2 3 4 5 6 9 01 0 1 4 5 6 7 8 9 L im it L im it Ch .
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 12 9. TYPICAL APPLICA TIONS 9.1 Stereo Operation 9.2 Parallel Mono Operation (Both switches out, both inputs used, both level controls used, .
13 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier Sophisticated power amp monitoring circuits de- tect any abnormal conditions which may cause damage to the amplifier or speakers. A highly accurate clip de- tector illuminates the CLIP LED at the onset of clipping.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 14 1 1 . TROUBLESHOOTING TIPS 1 1.1 No Audio Output Power switch not lit: Line fuse is blown or power outlet is dead. Power switch is lit but no LEDs lit: Ther e is no input signal applied or input level contr ols ar e off.
15 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 12. DIMENSIONS.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 16 13. SPECIFICA TIONS 13.1 Output Power Per channel, both channels driven at 1KHz, < .1% THD, 120V AC 60Hz MF A-8000 MF A-6000 8 Ω : 75.
17 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 14. W ARRANTY POLICY W e thank you for your expression of confidence in Ashly products. The unit you have just purchased is pro- tected by a limited five year warranty . T o establish the warranty , you must first complete and mail the warranty card attached to your product.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier 18.
19 Operating Manual - MF A-8000 and MF A-6000 Power Amplifier.
Operating Manual - MF A-8000 and MF A-6000 Power Amplifier ASHL Y AUDIO INC. 847 Holt Road W ebster , NY 14580-9103 Phone: (716) 872-0010 Fax: (716) 872-0739 T oll Free (800) 828-6308 Internet: http://www .ashly .com/ 1997 by Ashly Audio Corporation.
An important point after buying a device Ashly MFA-8000 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ashly MFA-8000 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ashly MFA-8000 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ashly MFA-8000 you will learn all the available features of the product, as well as information on its operation. The information that you get Ashly MFA-8000 will certainly help you make a decision on the purchase.
If you already are a holder of Ashly MFA-8000, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ashly MFA-8000.
However, one of the most important roles played by the user manual is to help in solving problems with Ashly MFA-8000. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ashly MFA-8000 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
