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1 Unpack unit carefully. Make sure that it is in good
condition. It is important that you keep packaging for
warranty/service return. If damaged contact your
supplier.
2 Fit the valves if not already fitted
There is only one type of valve for each socket. The
two 6N6 are 9 pin and the 0A2 7 pin (see picture on
P1) Be careful not to bend the pins more than
necessary, this could crack the glass or cause air
leaks, damaging the valve.
3. Connect in your system as follows:
Integrated amp without "Tape" or "Record" loop
Connect between your source output (e.g. CD or
phono stage) and any line RCA input
Integrated amp with "Tape" or "Record" loop
Connect amplifier "Rec" output to BA3 input and BA3
output to "Tape in" on amplifier. You will need to
switch the "Tape Monitor" switch to "Tape" (refer to
your amplifier manual for more information).
Pre amplifier with Power Amplifiers
Connect Preamplifier "Out" to BA3 "Input" and BA3
"Output" to the "inputs" of your power amplifier(s).
In all cases observe Left and Right channel wiring.
4. Position the two units carefully in your system
far enough apart to eliminate noise or hum. It is
desirable to leave a gap between sensitive units such
as phono pre-amps, PU arms etc. You may need to
do this by "trial and error" with the units working to
find the best combination.
5 Connect to mains supply using the supplied mains
cable to 220-240v supply (or 110-120v for USA etc) .
If it is necessary to change to a different type of
mains plug, the welded plug must be removed
and replaced with a suitable type. Please then
remove fuse and dispose of carefully. (As they can
be a danger to children if plugged in). The
replacement plug should be wired in the following way
Brown to Live terminal, Blue to Neutral terminal and
Green/Yellow to Earth terminal.
6 By Pass switch
In the "up" position the BA3 is working normally (when
switched on).
In the "Down" position the BA3 is effectively "out of
circuit" so should be switched to this position when
switched off or not required.
7 SWITCH ON! The red mains indicator should light
up and the unit will take approximately 40 seconds to
start working. Both valves should have a visible
orange glow from each of the two cathode heaters.
With the volume control set to minimum (fully anti-
clockwise) there should be no sound coming from the
speakers except a barely discernable gentle hum.
8 Your unit should now be functioning. If not check
wiring again and/Use selector/tape monitor/volume to
choose source program and suitable listening volume.
The best sound quality will be when the unit has
warmed up for at least 5-10 minutes.
9 Health and Safety. The valves when operating
have surface temperatures that are hot to the touch.
Keep out of reach of children and pets.
QUICK SET UP GUIDE
Under no circumstances operate with valves
removed!
Like all amplifiers there are potentially lethal high
voltages inside, which when switched off can take
up to 20 mins to discharge! Do not remove bottom
panel unless you are a competent engineer. There
are no user serviceable parts inside. Like other
household electrical appliances do not leave
unattended whilst switched on.
Inputs & outputs
Many
problems
with
connecting leads which are usually either 'bad, or
Wrong connection'. So it's worth making sure that
you have good connections and that your leads are
the right way round.
Inputs
The amplifier will work with any standard piece of hi fi
e.g. CD, Tuner, Tape Deck, Mini Disc, TV, Video
Recorder, DVD etc.
General points
•
Mobile phone 'breakthrough' is normal
•
A switch-off 'click' through the speakers is
normal.
•
Storage in damp conditions could permanently
damage transformers, contacts and other parts.
Connecting Leads
Use good quality connecting leads, which are no
longer than they need to be.
Leaving the amp switched on
People sometimes ask "should the amplifier be left
running 24/7 without switching off"?
Whilst the amplifier will sound at its best when it is
properly warmed up this only takes 5-10 minutes, so
there is no advantage leaving it switched on when it is
not in use. It is using electricity and valves have a
finite
life.
Conversely
components are stressed more at switch on; therefore
do not switch on and off unnecessarily. Although the
amplifier should sound good within a few minutes
like most hi fi units it can take up to an hour to
sound at its best and will take a couple of months
of regular use before it is fully 'run in' and settled
down.
Cabinet Care
To remove dust from the cabinet and valves we
suggest gentle brushing with a soft paintbrush and a
damp
cloth,
always
disconnected.
CAUTION – HEALTH & SAFETY!
When making any adjustments it is essential to
isolate from the mains supply, and remember that
high voltages can remain present inside for some
time after switch off.
hi
fi
equipment
involve
the
valves
and
other
clean
with
the
power
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