Thermionic Culture THE PHOENIX HG15 Operating Manual

©Thermionic Culture Ltd, October 2013 1

WARNING

For your personal safety, please read this operating manual and
warning thoroughly before using the equipment.

This unit must be installed in such a manner that operator access to
the mains plug is maintained. Where the product is to be rack
mounted, this may be achieved by having access to the
disconnection device for the whole rack.

To reduce the risk of electric shock, it is essential that the unit is
disconnected from the mains supply before removing the cover.

Please also note that the power supply capacitors within this unit can
remain charged even after the mains supply has been disconnected.
It is essential that these capacitors are discharged after the mains
supply has been disconnected and the covers have been removed.

In the event that this unit has been dropped or has suffered an
impact, an electrical safety test must be carried out before
reconnection to the mains supply.

This equipment is not intended for use in explosion hazard
environments. It must be used and stored in studio conditions, such
that the ambient relative humidity does not exceed 80%, nor is the
temperature to be allowed to drop to a level, which would cause dew
point to be reached.

Please ensure that adequate ventilation is provided and that the
ventilation slots are not obstructed. When rack mounting this
equipment, a fan may be required to provide sufficient airflow.

©Thermionic Culture Ltd, October 2013 2

CONTENTS

Section Page
1 Introduction 3

2 Installation 4

2.1 Metering 4

3 Controls 5

3.1 Input 5

3.2 Gain 5

3.3 Bass Cut 5

3.4 Threshold 5

3.5 Time Constant 5

3.6 Side Chain Bass Cut 6

3.7 Presence 6

3.8 Air 6

3.9 Active EQ 6

3.10 Output Trim 6

4 Servicing & Maintenance 7

4.1 Valves/Tubes 7

4.2 Operating Voltage/Fuses 7

5 Operational Hints 9
6 Specification 10

©Thermionic Culture Ltd, October 2013 3

1 Introduction

The Phoenix HG is a single channel version of our classic
Phoenix Stereo Compressor.

The gain has been boosted to suit mic inputs, particularly
valve or FET condenser types, though many moving coil
mics such as Shure, Audio Technica, etc. are fine to use with
it on vocals and close mic-ing most instruments.

As a line level compressor it will perform as a mono Phoenix
with a slightly harder compression. The compression ratio is
not user adjustable and increases as compression increases
to be a limiter at very high levels. This gives a very natural
effect, especially with vocals.

Some basic eq. is provided, bass roll-off and active lifts
("Presence" and “Air”) which can be switched in and out
together.

Two Phoenix HGs can be linked for stereo operation by the
Link socket on the rear. We have also provided a Side Chain
Bass Cut switch.