Whirlwind LD410 User Manual download pdf

INTRODUCTION

The Whirlwind LD410 Line Driver is the ultimate tool for matching

audio equipment signal levels. The LD410 is both a professional quality,

sonically superior -10 to +4dB to -10dB level converter and a flexible

multichannel distribution amplifier within a single rack space enclosure. Each

of the eight output channels feature gain controls, LED metering and mute

buttons. There are also eight input channels utilizing the highest quality, low

noise preamplifiers with14dB input pads that can be engaged to attenuate high

input signals. The LD410 is factory configured with four channels of 10dB to

+4dB conversion (RCA input jacks to male XLR outputs) and four channels of

+4dB to 10dB level conversion (female XLR inputs to RCA output jacks). An

additional screw terminal block on the rear panel provides balanced signal

connections for those channels with RCA jacks. Assignable signal routing

jumpers inside the LD410 permit the creation of multiple distribution

amplifiers by allowing multiple outputs to receive their signals from a common

input. The LD410 has an internal power supply, which can be set for 115VAC or

230VAC by changing internal jumpers.

US Audio has made every effort to ensure that your equipment

is received in the same perfect condition it was in when it left the

factory. Please inspect your product for signs of any damage during

shipping and report them to your dealer so that he can present a claim to

the shipper. We recommend that you save your packaging material for

use in the unlikely event that you need to return your equipment for

service.

UNPACKING

LD410

The LD410 is a one rack space, eight channel, high performance line driver featuring:

· Four channels of +4dB to -10dB level conversion, female XLR to RCA phono.

· Four channels of -10dB to +4dB level conversion, RCA phono to male XLR.

· All eight outputs have -38dB to +38dB variable gain controls.

· Multiple outputs can be assigned to a common input.

· LED metering for -10dB, +4dB, output and input clip indication.

· Mute switches on each output.

· Switchable 14dB pads on each input.

· Screw terminal block allows balanced signal connections to all channels

FEATURES

professional interface

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Summary of Contents

Page 1 - FEATURES

INTRODUCTIONThe Whirlwind LD410 Line Driver is the ultimate tool for matching audio equipment signal levels. The LD410 is both a professional quality,

Page 2 - DESCRIPTION OF BLOCK DIAGRAM

The LD410 is a versatile, multipurpose line driver and multi-channel distribution amplifier. There are eight input channels and eight output channels.

Page 3 - LD410 BLOCK DIAGRAM

LD410 BLOCK DIAGRAM

Page 4

1. Input Pad switch applies a 14dB pad across the input jack when depressed.2. Gain control varies the signal level at the output jacks. The gain mark

Page 5 - Email: [email protected]

99 Ling Road - Rochester, NY 14612800-733-9473 - 585-663-8820 - Fax: 585-865-8930Website: http://www.whirlwindusa.comEmail: [email protected]

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Whirlwind LD410 User Manual

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Summary of Contents

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