Page 2 - Table Of Contents
Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 2 Table Of Contents 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3 - This power amplifier can produce dangerous output voltage
3 Operating Manual - MFA-8000 and MFA-6000 Power Amplifier Caution: This power amplifier can produce dangerous output voltage l e v e l s , h i g h p o w e r l e v e l s , a n d h i g h s o u n d p r e s s u r e l e v e l s i nloudspeakers. In order to minimize the risk of injury, damage, orhearing ...
Page 4 - INTRODUCTION; Caution: This product can deliver enough; UNPACKING
Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 4 1. INTRODUCTION The MFA Series amplifiers achieve the very high energy levels used in today’s professional sound systems,carefully maintaining control and accuracy while deliv-ering high power to modern loudspeaker configurations.T h e M FA ...
Page 5 - Table 3.1: Recommended AC line current capacity
5 Operating Manual - MFA-8000 and MFA-6000 Power Amplifier peaking at the clipping level, the following AC line cur-rent capacities are recommended for system design pur-poses: Load MFA-6000 MFA-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 Table 3...
Page 6 - Off; AC Power
Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 6 6. FRONT PANEL FEATURES 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 thispower-up sequence, and the input signal is ...
Page 8 - The standard input panel of the MFA series amps; Balanced Inputs; It is recommended that balanced input connec-; Unbalanced Inputs; If an unbalanced input connection is used, then; Figure 7.1a: Unbalanced Input Connections
Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 8 7. REAR PANEL FEATURES 7.1 Inputs The standard input panel of the MFA series amps i s e q u i p p e d w i t h b a l a n c e d 1 / 4 " t i p - r i n g - s l e e v e ( T R S )phone jacks, balanced XLR jacks, and balanced screw-terminal inp...
Page 9 - dged; CHANNEL 2; al Channel; Channel 2; Ashly; MF
9 Operating Manual - MFA-8000 and MFA-6000 Power Amplifier Input Ground The CHASSIS GROUND terminal is internally connected to the chassis, the AC earth ground, and thepower amplifier ’s signal ground. The INPUT GROUNDterminal is tied to the XLR pin 1 and the 1/4" jack sleeve.It is recommended t...
Page 11 - PO WERCA RD; Balanced Input; POWERCARD
11 Operating Manual - MFA-8000 and MFA-6000 Power Amplifier Limiter In/Out Lev el Channel 2 (+) (-) Input Ground Chassis Ground (-) (+) Lev el Limiter In/Out Channel 1 (Mono) CL-2 PO WERCA RD Input Option Stereo Limiter 10 0 1 2 3 4 5 6 9 0 10 1 4 5 6 7 8 9 Lim it Lim it Ch. 2 Limiter Threshold (dB)...
Page 14 - Line fuse is blown or power outlet is dead.; Distorted Sound
Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 14 11. TROUBLESHOOTING TIPS 11.1 No Audio Output Power switch not lit: Line fuse is blown or power outlet is dead. Power switch is lit but no LEDs lit: There is no input signal applied or input levelcontrols are off. Note: In parallel mono mod...
Page 15 - DIMENSIONS
15 Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 12. DIMENSIONS
Page 16 - bridged mono mode; Total Harmonic Distortion:; balanced; Amplifier Protection:
Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 16 13. SPECIFICATIONS 13.1 Output Power Per channel, both channels driven at 1KHz, < .1%THD, 120VAC 60Hz MFA-8000 MFA-6000 8 Ω : 750W 525W 4 Ω : 1200W 800W 2 Ω : 1500W 900W bridged mono mode 8 Ω : 2400W 1600W 4 Ω : 3000W 1800W ( ± 1dB) per ...
Page 17 - WARRANTY POLICY; Fill out the information below for your records.
17 Operating Manual - MFA-8000 and MFA-6000 Power Amplifier 14. WARRANTY POLICY We 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. To establish the warranty, you must first complete and mail the warranty ...
Page 20 - MFA Rev 2
Operating Manual - MFA-8000 and MFA-6000 Power Amplifier ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103 Phone: (716) 872-0010 Fax: (716) 872-0739 Toll Free (800) 828-6308 Internet: http://www.ashly.com/ 1997 by Ashly Audio Corporation. All rights reser ved worldwide. MFA Rev 2 Printed in US...