Martin Audio S15 Bedienungsanleitung PDF herunterladen (Seite 6)

Blackline Series enclosures are designed for portable applications, but can

be suspended singly by means of the threaded inserts provided.

The F12, F15, H2 and H3 enclosures are fitted internally with steel corner

reinforcement brackets to ensure that each cabinet is strong enough to be

hung from its top. Never suspend one enclosure from another to form

an array or cluster using these fittings

The common practice of using commercially available eye bolts for

suspension should only be undertaken with great caution. Eye bolts are

strongest along the thread axis. Angling the enclosure will result in an angle

pull and it is important to use eye bolts that are safe in these

circumstances. Only forged shoulder eye bolts should be considered and it

is important that the thread length is at least 30mm. A flat washer should be

inserted between the eyebolt and the enclosure. Formed eye bolts i.e.

those which are formed from a steel rod bent into an eye should be

avoided.

5 AMPLIFICATION

Blackline Series loudspeakers are designed to be used with professional

power amplifiers capable of producing the following power outputs into 4

ohms:

F12 400-650W

F15 400-800W

H2 MF/ MF + HF 400-650W

HF 100-400W

H3 LF 400-1000W

MF + HF 400-650W

S15 400-1000W

S18 400-1000W

S218 800-2000W

ARNING: Care should be taken to avoid amplifier clipping. It is

important to understand that a low power amplifier driven into clipping is

more likely to damage a loudspeaker than a higher power amplifier used

within its ratings. This is because music signals have a high peak-to-

average "crest" factor. When an amplifier is severely overdriven, its output

waveform is clipped (its peaks are squared off) – reducing the crest factor.

In extreme cases, the waveform can approach that of a square wave. An

amplifier is normally capable of producing far more power under these

conditions than its undistorted rated power output.

The use of very high power amplifiers with outputs greater than those

recommended is discouraged.

Care should be taken to avoid switch-on surges, which can result in

momentary power peaks in excess of specified ratings. When powering up

a sound system it is important to switch on the amplifiers after the mixer

and control electronics have stabilised. When powering down the system,

reverse the sequence and switch off the amplifiers first.

Martin Audio – Blackline Series

ENGLISH

CONTENTS

GUIDES

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