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アンプ Ashly MFA-6000のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Ashly MFA-6000 20 ページ。 Ashly audio corporation operating manual power amplifier mfa-8000, mfa-6000

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1. Specifications

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

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 , and up to 3000 Watts

(1800W) bridged-mono into 4 . 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.

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.

AC POWER REQUIREMENTS

3.1

Voltage 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.

3.2

Current Requirements

A 15 amp circuit is usually sufficient for normal

operation into 8

or 4

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