Drawmer 1978 Bruksanvisning
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DRAWMER
STEREO TONE SHAPING
FET COMPRESSOR
OPERATOR’S MANUAL
CONTENTS
Warranty
Safety Consideration
Chapter 1 - Introduction
Introduction
Installation
Audio Connections
Power Connection
Chapter 2 - Control Description
Control Description
Chapter 3 - General Information
If a fault develops
Contacting Drawmer
Specification
Block Diagram
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DRAWMER 1978 OPERATOR’S MANUAL
DRAWMER
1978
STEREO TONE SHAPING FET COMPRESSOR
CHAPTER 1
INTRODUCTION
The Drawmer 1978 builds on the success of the award
winning 1973 multiband FET compressor and adorns an
unparalleled array of controls to give complete mastering
over your mix, and all in a deceptively simple 1U frame.
In addition to the usual Ratio, Threshold, Attack and
Release controls, the 1978 features four character
switches offering a wide range of compression flavours,
as well as a variable saturation control to add harmonic
distortion to the signal. Side chain functionality is also
included with side chain insert points on both channels
and a very comprehensive and flexible Side Chain EQ
section which offers LF and HF controls with a choice of
specific shapes and frequencies for precise frequency-
conscious compression such as de-essing. A wet/mix
control also allows you to blend the processed signal with
the dry for parallel compression.
In addition, a fast reacting Dual colour backlit VU Meter is
employed to provide a visual indication of the amount of
saturation added. Time delay relays are incorporated into
the outputs to provide clean power-up and down with no
pops or bangs, and a low hum toroidal linear power supply.
The Drawmer 1978 is a truly flexible compressor made in
the UK with high-quality components.
The 1978 is a Buss Compressor like no other - compression
with character, controlled distortion, tonal shaping, wet/
dry mixing - others have tried but have never managed to
build a compressor that is this versatile and yet intuitive.
It's never been easier to get that elusive characteristic
sound that sets you apart from the rest. Glue your mix,
bring out the bass, control the highs, add warmth,
distortion, smoothen, widen, sound less digital more
analogue - and at a price that's right for even the smallest
studio.
Fast Reacting Stereo FET Design compressor with excellent Left/Right Tracking across the Full Range
of compression and in a 1u rack mount housing.
Threshold, Ratio, Attack and Release controls and Gain Reduction Metering provide familiar and initiativ
control over the audio. Anyone that knows how to use a compressor can operate the 1978.
4 character switches provide a multitude of compression flavour combinations that allow the 1978 to
take on the characteristics of other compressors.
Comprehensive side chain EQ giving simultaneous control of frequency and level of filtering for the low
and high bands. This works in conjunction with the rear panel stereo insert points that provide even
further control.
Variable Wet/Dry Mix plus Output Gain Knobs give a 'Parallel Compression' function without the need
for external mixing devices, providing Complete and Effortless Control over the amount of compression
used and Output Levels.
Two Analogue V.U. Meters with Switchable +10dB Meter Rescale Mode. These have additional dual
colour backlighting that act as a visual indication for the amount of saturation.
Time delay relays on outputs for clean power up/down.
Internal Low Hum Toroidal Linear Power Supply with Voltage Selector Switch.
Classic Drawmer Build Quality with Rugged Steel Chassis and Aluminium Front Panel.
Designed and manufactured by Drawmer in the UK.
The key features are as follows:
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DRAWMER 1978 OPERATOR’S MANUAL
The 1978 is designed for standard 19" rack mounting and
occupies 1U of rack space. Avoid mounting the unit directly
above power amplifiers or power supplies that radiate
significant amounts of heat and always connect the mains
earth to the unit. Fibre or plastic washers may be used to
prevent the front panel becoming marked by the mounting
bolts. It is also advisable to leave space above the unit to
allow the heat to dissipate.
INSTALLATION
AUDIO CONNECTIONS
The inputs and outputs are electronically balanced on conventionally wired XLRs (pin 1 screen, pin 2 hot, pin 3 cold and
XLR shell is connected to chassis). The operating level is nominally +4dBu. Balanced use is recommended.
• Interference:
If the unit is to be used where it maybe exposed to
high levels of disturbance such as found close to a TV
or radio transmitter, we advise that the unit is operated
in a balanced configuration. The screens of the signal
cables should be connected to the chassis connection
on the XLR connector as opposed to connecting to
pin1. The 1978 conforms to the EMC standards.
• Ground Loops:
If ground loop problems are encountered, never dis-
connect the mains earth, but instead, try disconnect-
ing the signal screen on one end of each of the cables
connecting the outputs of the 1978 to the patchbay. If
such measures are necessary, balanced operation is
recommended.
1978 CONNECTOR WIRING
SIDE CHAIN
The external side chain feature on the 1978 is part of the compressor feedback stage and would normally be connected
to a normalised or semi-normalised pair of patchbay contacts. This would allow the user to insert EQ in addition to the
Tonal shaping on the front panel for some de-essing, or frequency conscious compression. The side-chain access point
is unbalanced, connection is via stereo 1/4" jacks, the wiring convention being: ring is signal send, tip is signal return
and sleeve ground.
Produktspecifikationer
| Varumärke: | Drawmer |
| Kategori: | Inte kategoriserad |
| Modell: | 1978 |
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