Redgum RGi35 User manual

Operating Instructions
for
REDGUM Amplifiers
Models
RGi35 - RGi60 - RGi120
Lost keys can be replaced. Information is kept on file at the
factory about every REDGUM amplifier manufactured. By
quoting the Serial No. (on the under side of your amplifier,
on the carton or on the Final Test Report) another key can
be provided.
Just Fax a request for a new key and your FINAL TEST
REPORT (noting any change of address) to:
REDGUM Australia - Fax[phone].
A replacement key will be sent by Air Mail the same day.
*****
When turning the power ”on”, a slight ‘pop’ may be heard
from the speakers. This is normal and will not damage your
loudspeakers. After the power is turned “off”, the amplifier
will continue to operate until the reservoir capacitors are
exhausted. During this time period, odd sounds may be
heard - they also are normal and will not harm your
speakers. *****
WARNING DO NOT REMOVE THE COVER on your
REDGUM amplifier. There is the RISK of a FATAL
ELECTRIC SHOCK. *****
The only fuse used is the mains fuse located outside the
cabinet in a small compartment of the IEC mains input
connector. This connector is found where the mains power
cord plugs in at the rear of the amplifier. To check for a
‘blown’ fuse, turn off the power at the wall socket and
remove the plug. Pull the power cord from the IEC socket
and locate the small drawer under the socket. Remove the
drawer by pulling straight out. Pull the fuse from the holder
and check the fine internal wire. If it is incomplete, replace
it with the spare fuse located in the body of the drawer.
The fuse is a SAFETY device. DO NOT experiment with
other sized fuses. Severe damage and/or a FATAL
electric shock could result. REDGUM fuse values are as
follows: 60watt amplifier used on 220-250v - 2 Amp
60watt amplifier used on 100-120v - 4 Amp
120Watt Amp. used on 220-250V - 4 Amp
120Watt Amp. used on 100-120V - 8 Amp
If in any doubt whatsoever - consult your dealer.
*****
Before returning your amplifier for repair service you
should try the following test. Disconnect all connectors
from inputs, Tape Out and speaker terminals. Connect a
pair of speakers (with attached leads) from another
Complete for Warranty Registration :
Name __________________________________________
Address ________________________________________
City ____________________________ Zip code________
Country ______________ Date of purchase__________
Place of purchase _______________________________
Model No._______________________________________
Serial No. (if any) ________________________________
Fax this page to the REDGUM Audio factory at
[phone]
or Email details (incl. S.N.) to
<[email protected]>

Make sure that yourREDGUM Amplifier is disconnected
from mains power before making any connection to
speaker terminals. Failure to do so may result in an
electric shock and/or damage to the amplifier.
Using heavy speaker cable (2mm minimum), hook up the
speaker on the right side of your listening area by
connecting the positive terminal of the right speaker to the
positive (red) terminal on your REDGUM amplifier
(labelled +ve Right speaker). Connect the other terminal on
your right speaker to the amplifier (labelled -ve Right
speaker)
Hook up your left speaker using a similar proceedure.
Before turning on the power, check that wiring
terminations look neat and that no loose strands of wire
are touching another terminal. Failure to make neat
connections may result in poor sound or amplifier
damage.
NOTE:
The second set of speaker terminals on largerREDGUM
amplifiers are for Bi-Wiring. Consult your dealer (with
information on your loudspeakers) for details on whether
REDGUM Amplifiers
The power switch is on the left of the front panel and
is operated by the key provided. The power is “off”
when the key is vertical.
To turn on the power, rotate the key clockwise 1/4 turn.
The key can be removed in the “on” position, but for
safety reasons, it is suggested that the key be left in
when the power is on. If preferred, the key switch can
be left in the “on” position and the power controlled
from the wall outlet.
The Input Selector is on the right-hand side of the front
panel and rotates from CD through to Tape 2. All of
the inputs have the same sensitivity, so any ‘line level’
input can be connected to any position.
The order of inputs shown on the diagram is
preferable because the C.D. input has the shortest
path to the power amplifier, followed by the VCR, etc.
The label above the Selector is made of removable
material and it can be gently lifted up at the edge and
peeled off.
The REDGUM amplifier is fully Dual-Mono in
operation and has a separate level control for each
channel. These controls are normally moved together
but can be moved separately to achieve balance.
These volume controls should approximate live
'concert hall' levels at the ‘12 O’clock’ position. In this
position “clipping” of the signal is rare and no
damage to speakers or amplifier should result.
However, pushing to ‘2 O’clock’ and beyond can
result in “clipping” distortion which is the major cause
of speaker damage, so use with care!
The REDGUM amplifier uses new generation Metal
Oxide-doped Silicon, Field Effect Transistors
(MOSFET’s), which can operate into impedances
below 1 ohm without damage as they are not prone to
secondary breakdown like normal transistors. But
long-term, very high listening levels with speaker
impedances below 4 ohms may cause the internal
heatsinks to rise past 80 degrees Centigrade. This
will result in the protective thermal ‘cut-out’ operating
and shutting off power to the amplifier.
The power will automatically restore once the
Tape
Out CD VCR AmFm Tape
1Tape 2
Left
Right
DVD Tu AV1 AV2
WARNING
Make sure that your REDGUM Amplifier is
disconnected from mains power before making any
input connections to your other equipment.
Failure to do so may result in an electric shock and/or
damage to the amplifier.
Connect your CD or DVD player to your REDGUM
amplifier using high quality RCA interconnects
between your player and the sockets labelled CD (Left
Output on CD to Left Input on Amplifier).
Connect a Video Cassette Recorder to the sockets
labelled VCR (Left Output on VCR to Left Input on
Amplifier).
Connect your AmFm tuner to sockets labelled AmFm
(Left Output on Tuner to Left Input on Amplifier).
Connect a Cassette deck or DAT tape to sockets
labelled Tape 1 (Left Output on CD to Left Input on
Amplifier).
Connect any audio product to any unused inputs.
NOTE:
Connect any ‘Line Level’ inputs to your REDGUM input
sockets as all inputs are direct connected to the
power amplifier stages when selected on the front
panel. Any selected input is also direct connected to
the Tape Out sockets for ‘straight through’ or
Speakers
+
-
+
-
+-- +
Right Left FUSE
Right
Speaker Left Speaker
Heavy cable
gives better sound