Introduction, Unpacking, AC Power Requirements

Operating Manual - MFA-8000 and MFA-6000 Power Amplifier

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. The MFA 8000 (MFA 6000) will deliver 1200 Watts (800W) per channel into 4 Ω, and up to 3000 Watts (1800W) bridged-mono into 4Ω. They are Ashly Audio’s highest-powered amplifiers, employing an advanced power supply circuit capable of delivering continuous high current to the most demanding loads. The MFA amplifi- ers have a dual-monaural design with completely inde- pendent, yet physically identical channel modules, offer- ing superior audio performance, better weight distribu- tion, and greater reliability. In order to fully benefit from the many features designed into this product, please take time to read this entire manual before operating.

Caution: This product can deliver enough energy to the output terminals to produce a lethal shock. Do not attempt to wire the amplifier when the power is turned on.

Caution: The MFA amplifiers are capable of delivering tremendous amounts of power to the speaker load. Ashly Audio is not responsible for speaker damage as a result of excessive power.

Caution: This unit is capable of produc- ing high sound pressure levels. Continuous expo- sure to high sound pressure levels can cause per- manent hearing impairment or loss. Use caution when operating at high levels by wearing appro- priate ear protection.

The MFA amplifiers employ complimentary bi- polar output transistors to achieve maximum output cur- rent capability and power efficiency. All voltage gain and current gain stages remain completely discrete and fully complimentary for lowest distortion and superior overload behavior.

In addition to the amplifier’s audio path, several sophisticated monitoring and control circuits serve to keep the amplifier running comfortably within its safe operat- ing area, while protecting the speaker loads from abnor- mal conditions. This protection will intelligently respond

to hard clipping, overheating, excessive high frequency energy, and output DC, thus preventing damage to the amplifier or the load. Status LEDs indicate fault condi- tions, if any, and warn the operator of situations requiring a change in operating environment.

The MFA amplifiers are compatible with all Ashly Powercard input options, and are shipped standard with balanced XLR, 1/4" TRS and screw terminal input con- nections, as well as 5-way binding post and Neutrik Speakon speaker connections. Stereo, parallel mono, and bridge mode switches along with a ground lift are all ex- ternally accessible on the back panel.

2.UNPACKING

As a part of our system of quality control, every Ashly product is carefully inspected before leaving the factory to ensure flawless appearance. After unpacking, please inspect for any physical damage. Save the ship- ping carton and all packing materials , as they were care- fully designed to reduce to minimum the possibility of transportation damage should the unit again require pack- ing and shipping. In the event that damage has occurred, immediately notify your dealer so that a written claim to cover the damages can be initiated.

The right to any claim against a public carrier can be forfeited if the carrier is not notified promptly and if the shipping carton and packing materials are not avail- able for inspection by the carrier. Save all packing mate- rials until the claim has been settled.

3.AC POWER REQUIREMENTS

3.1Voltage Requirements

Your MFA amplifier is supplied with an AWG 12/ 3 AC power cord, and should be plugged into a standard 3-wire grounded electrical outlet which supplies 120VAC 50-60 Hz , 15 Amps minimum (some export models are wired for 240 volts and are labeled as such). Be certain that there are no other high-current devices on your AC line, as performance of both may be compromised. In the event of line voltage sag, or “brown-out”, MFA amplifi- ers will continue to operate normally, albeit with less power.

3.2Current Requirements

A 15 amp circuit is usually sufficient for normal operation into 8Ω or 4Ω loads. The actual AC current consumption by the amplifier depends greatly on the au- dio signal and the load impedance. For typical audio pro- gram material with the amplifier driving both channels just

MFA-6000, MFA-8000 specifications

The Ashly MFA-8000 is a state-of-the-art audio amplifier designed for both professional and commercial audio applications. Renowned for its reliability, sound quality, and versatility, this amplifier is perfect for installation in concert halls, theaters, houses of worship, and various other venues that require robust audio performance.

One of the standout features of the MFA-8000 is its impressive power output. Delivering 800 watts per channel at 4 ohms, the amplifier is capable of driving demanding speaker systems with ease, ensuring that sound reproduction remains crisp and clear, even at high volumes. This power is complemented by a dynamic range that enhances the listening experience, making it suitable for music playback, public announcements, and other audio applications.

The MFA-8000 incorporates Class AB amplification technology, which is known for its low distortion and high linearity. This ensures that the audio signal remains faithful to the source material, providing an authentic listening experience. Additionally, the amplifier includes advanced protection circuits that safeguard against overloads, short circuits, and overheating, ensuring longevity and durability.

In terms of connectivity, the MFA-8000 offers a variety of input options, including XLR, 1/4" TRS, and RCA connectors, making it highly versatile and compatible with a wide range of audio sources. The rear panel features an intuitive layout that simplifies the connection process, allowing users to easily integrate the amplifier into existing audio setups.

Furthermore, the MFA-8000 is equipped with built-in signal processing capabilities, including adjustable crossover settings and EQ controls, allowing users to tailor the output to suit the specific acoustics of their venue. This adaptability makes it an excellent choice for installations where sound quality must be optimized for different settings or events.

Cooling is also a critical aspect of the MFA-8000’s design. The amplifier features a highly efficient cooling system with variable-speed fans that ensure the unit remains cool even during prolonged use, preventing thermal issues that could compromise performance.

Overall, the Ashly MFA-8000 is a powerful and reliable audio amplifier that combines advanced technologies with practical features, making it an ideal solution for a wide range of professional audio applications. Its robust construction, high-quality sound reproduction, and user-friendly design make it a valuable addition to any audio setup, ensuring that it meets the demands of both sound engineers and everyday users alike.

Ashly MFA-8000, MFA-6000 Introduction, Unpacking, AC Power Requirements, Voltage Requirements

Models: MFA-6000 MFA-8000