Chevin S600, S800 User Manual

USER MANUAL

S600/S800

PROFESSIONAL POWER AMPLIFIER

Chevin Research, Kreuzbichlstraße 29 A-6112 Wattens, Austria

Tel/Fax: [phone]

chevin.martin @aon.at , [e-mail]

www.chevin-research.com

Contents

Important safety instructions ..................

Introduction ............................................

Front Panel ............................................

Rear Panel .............................................

Clip-Limiter ............................................

Subsonic Filter .......................................

Stereo Mode ..........................................

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4
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5
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Parallel Input Mode ................................

Bridge Mono Mode .................................

Installation and Dimensions ...................

Connectors and Connections .................

Operation ...............................................

Technical Specifications ........................

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8

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Caution: To reduce the risk of electric shock do not remove the cover.
No user-servicable parts inside. Refer servicing to qualified service personnel.
Warning: To prevent fire or electric shock do not expose this equipment to rain or moisture.

The exclamation point within an equilateral triangle is intended to alert the user to the
presence of important operating and servicing instructions in the literature accompanying the
product.

The lightning flash with arrowhead symbol within an equilateral triangle is intended
to alert the user to the presence of uninsulted “dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk of electric shock.

WARNING - When using electric products basic precautions should always be followed,
including the following:

- Read all these instructions before using the product.

- Do not use the product near water e.g. near swimming pool, kitchen sink, bathtub, or in

a wet basement, etc.

- This product, either alone or in combination with other sound equipments, is capable of
producing sound levels that can cause permanent hearing loss. Do not operate the
product for a long time at high volume level.

- The product should be located away from heat sources such as direct sunlight or other
sources of heat.

- The product should be connected to a power supply only of the type marked on the rear
panel of the product.

- The power supply cord of the product should be unplugged from the mains socket when
left unused.

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- Avoid allowing any objects to enter inside the product or spilling any liquid into it.

- The product should not be used when:

1. The power supply cord or plug has been damaged

2. Objects have fallen or liquid has been spilled into the product

3. The product has been exposed to rain

4. The product does not appear to operate normally or exhibits a marked change in
performance

5. The product enclosure has been damaged.

- Do not attempt to service the product. Refer servicing to qualified personnel.

The symbol of crossed-out wheeled bin is intended to inform the user that the
product is the subject to the requirements of the WEEE Directive of the European Parliament.
I.e. after the end of its lifetime the product should not be disposed as unsorted municipal waste
but should be collected separately

Introduction

This 2-channel professional power amplifier provides high-value performance.

Features

- independent user-defeatable clip-limiters and subsonic filters (40Hz or 80Hz)

- operating modes: stereo (2-channel), parallel inputs and mono bridge

- balanced XLR inputs

- Speakon outputs

- LED indicators for BRIDGE, PROTECT, SIGNAL, CLIP, POWER

Front Panel

1. Power switch

2. Gain controls for CHANNEL A, CHANNEL B

3. LED indicators ON, SIGNAL, CLIP, PROTECT, BRIDGE

Rear Panel

1. INPUT connectors for channel A and channel B

2. SEND connectors providing the same signals as A and B input signals

3. OUTPUT connectors for channel A, channel B

4. OUTPUT BRIDGE – output connector for bridge mode

5. MAINS – AC power cable

6. FUSE

7. BRIDGE – switch for bridge mode selection

8. DIP switch for other models of operation

Clip-Limiter

When audio signals drive the amplifier’s output circuit beyond its power capability it clips. The
clip limiter detects this and reduces the gain to minimise the amount of overdrive.
To preserve as much of the program dynamics as possible, the clip limiter works only if clipping
occurs frequently.
Each channel has its own limiter. It is possible to switch it on or off independently.

When to use the clip-limiter

When full-range speakers are used, the clip limiter reduces high frequency distortion caused by
bass overloads. It also protects high frequency drivers against excessive overdrive and harsh
clipping harmonics.
When subwoofers are used, some users let the amplifier clip without limiting because sounds
are more emphasised.

Caution: In bi-amp systems, excessive limiting will affect the frequency balance.

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