Download Albion ABH300H User guide

OPERATING MANUAL AND USER GUIDE
ABH200C & ABH300H
www.albionamps.com
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Contents
Important Safety Instructions ...................................................................................... 1
Important Warnings ....................................................................................................... 2
Designer's Introduction................................................................................................. 3
2XWOLQH6SHFL¿FDWLRQ ..................................................................................................... 3
ABH200C & ABH300H Features and Controls ............................................................ 4
Rear Panel ....................................................................................................................... 5
6SHFL¿FDWLRQ ................................................................................................................... 6
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OPERATING MANUAL AND USER GUIDE
Important Safety Instructions
1.
Read these instructions – All the safety and operating
instructions should be read before this product is
operated.
2.
Keep these instructions – The safety and operating
instructions should be retained for future reference.
13. Unplug the apparatus during lightning storms or when
unused for long periods of time.
3.
Heed all warnings – All warnings on the appliance
and in the operating instructions should be adhered
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to.
required when the apparatus has been damaged in
any way including: power supply cord or plug damage,
4.
5.
Follow all instructions – All operating and use
liquid spillages, objects falling into the unit, exposure
instructions should be followed.
to rain/moisture or impact damage.
Do not use this apparatus near water – The appliance
15. Please keep the unit in a well ventilated environment.
should not be used near water or moisture – for
example, in a wet basement or near a swimming pool
16. CAUTION: These servicing instructions are for use
etc.
by qualified service personnel only. To reduce the
risk of electric shock, do not perform any servicing
6.
Clean only with dry cloth.
7.
Do not block any ventilation openings. Install in
other than that contained in the operating instructions
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accordance with the instructions.
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do not expose this apparatus to rain, moisture and
8.
9.
Do not install near any heat sourc es such as
dripping or splashing of liquids. Containers filled
radiators, heat registers, stoves, or other apparatus
with liquids such as vases or drinks should never be
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placed on top of or near the unit.
Do not defeat the safety purpose of the polarized or
18. WARNING: The mains plug/appliance coupler is used
grounding plug. A polarized plug has two blades with
as disconnect device, the disconnect device shall
one wider than the other. A grounding plug has two
remain readily operable.
blades and a third grounding prong. The wide blade
or the third prong is provided for your safety. If the
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electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched par ticularly at the plugs, convenience
receptacles, and at the point where they exit from the
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apparatus.
the user to the presence of non-insulated "dangerous
voltage" within the product's enclosure that may be
11. Only use attachments/accessories specified by the
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manufacturer.
shock.
12. Use only with the cart, stand, tripod, bracket or
- Warning: To reduce the risk of electric shock, do
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QRW UHPRYH FRYHU RU EDFN DV WKHUH DUH QR XVHU
apparatus. When a cart or rack is used, use caution
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when moving the cart/ apparatus combination to
personnel.
avoid injury from tip-over.
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series
- The exclamation point within an equilateral triangle
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is intended to aler t the user to the presence of
wet.
important operating and maintenance instructions in
the literature accompanying the appliance.
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all inter-connections whether for power, speaker or
20.
signal connections. If in any doubt, get them checked
Protective earthing terminal. The apparatus
should be connected to a mains socket outlet with a
or renew immediately.
protective earthing connection.
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21.
vents covered, even partially. Your amp loves being
Correct Disposal of this product. This marking
indicates that this product should not be disposed
fed nice cool air!
with other household wastes throughout the EU. To
prevent possible harm to the environment or human
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health from uncontrolled waste disposal, recycle
amp to warm up before playing, 5 minutes is a
it responsibly to promote the sustainable reuse of
good length of time. Also allow your amp to have a
material resources. To return your used device,
good cool down after playing and before moving it,
please use the return and collection systems or
especially into the back of a car on a cold winter’s
contact the retailer where the product was purchased.
night! Your valves will last longer if you give them a
They can take this product for environmentally safe
little respect and TLC. Valves are pretty tough when
recycling.
you think of what they are made from – but can be
very fragile if treated with physical abuse.
22. WARNING: The terminals marked with the symbol of
“
” may be of sufficient magnitude to constitute a
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risk of electric shock. The external wiring connected
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to the terminals requires installation by an instructed
system. DO NOT use a screened guitar cable for
person or the use of ready-made leads or cords
speaker use.
according to manufacturer’s instruction.
NEVER use your amplifier without it connected to a
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suitable matched loudspeaker system.
the audio output power exceeds 10W per channel
under normal operating conditions or the apparatus is
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and will be within safe operational limits. These
limits are set by various countries safety approvals
committees, and we at Albion Musical Instruments
Important Warnings
design, build, test, and have approved our products to
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ETL etc.
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EMC INTERFERENCE. Even though all Albion
their technology! There could be something important
Musical Instruments products are designed and
that you need to know.
tested to international electro-magnetic interference
standards, please note that cellular phones in close
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proximity may cause some interference with your
mains power supply in your country.
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from your amplifier. It is there to prevent you from
qualified in servicing musical instrument amplifier
receiving a fatal electric shock!
products. If in doubt please contact your dealer.
NEVER use your amplifier equipment in a high
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OPERATING MANUAL AND USER GUIDE
night after night of high level bass guitar playing without
Designer's Introduction
compromise. As mentioned above, the power stage is
very musical, it has a very sweet tone and handles being
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pushed into distortion (which is a very big test on any
been a great pleasure for me. When I finally started to
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play the prototypes I immediately knew my team had done
unpleasantness – it really delivers the goods with what
a great job, to any designer of any product THAT moment
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is pretty awesome, believe me. My aim of creating new
300 watt bass rigs. To keep things cool, the power amp
bass products with, what I think is, great style, massive
is thermostatically fan cooled on a very large heatsink
punch, warmth yet with clear tonality, and without having
– another example of our over-engineering. As with the
to mortgage your home, had become reality. The bass
other power items the power transformer is also larger
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than what other manufacturers put in their comparative
and products, and for Albion Musical Instruments to make
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its impact on that market meant that our products had to
notes without batting an eyelid! It doesn’t run out of
be pretty special; after the initial launch at Music Messe
steam!! And also helps keep things very cool (except for
2010 and the comments that people had about the range,
the preamp valves of course!
including those from some pretty impressive bass players,
I knew we had made something special. I hope that you
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agree with that!
impressive array of switchable options that make for a
very versatile bass system, covering gain variations for
both active and passive guitars, external Tuner connection
Thank you
with panel and footswitchable muting for silent tuning, plus
some very neat preset tone contouring options.
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pretty simple, but each control has a 3-position rotary
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switch selecting different frequency bands that give a very
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a combination of technologies to provide optimum
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performance required for high class consistent playing
you in control of the dynamics that you want - be it from
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clean, warm Jazz, through to overloaded Rock bass
only differing in the power supply transformer values to
styles. Our bass amps and speaker systems are designed
provide the required power output.
to deliver and handle them all.
The main preamplifier and tone forming circuit section
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uses 2 double triode low noise 7025/12AX7/ECC83 valves
own custom designed and built Albion 10” bass guitar
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loudspeakers wired in parallel for 8ohm operation. These
from a 380 volt HT power supply and DC heaters. The
speakers are specially designed for this combo, enabling
output from the valve preamp circuit then passes through
it to deliver great low end from a small cabinet.
the Mid circuit, which is separate from the preamp. This
mid circuit uses a very special high voltage operational
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amplifier circuit in order to pass the valve tone from the
High Frequency Angular Titanium Horn and Hifi grade
preamp to the power amp without adding extra unwanted
crossover network. This very special HF unit has a unique
colouration. All it does is change the mid frequency
angular dispersion pattern that projects upwards towards
spectrum.
the player’s hearing, as well as directly ahead towards
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The power amplifier stage is an extremely rugged but
very fine full range bass guitar response beyond that
very musical bipolar transistor design that delivers the
of its relatively small size, perfect for small club stages
wide range response required for the punch and wide
and ease of transportation. On the back of the cabinet
bandwidth required by today’s bass players. The power
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stage is pretty much OVER-engineered to maintain
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series
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the system into a 3-way bass system for increased bass
response and wider spread when required, but still making
a compact transportable system.
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series
ABH200C & ABH300H Features and Controls
INPUT – Mono ¼” Jack socket for instrument input. Use a
EQ CONTOUR EXPANSION SWITCHES – WKH (4
properly screenedLOUDSPEAKER
“guitar”OUTPUT
cable
for interconnection. There
SOCKETS
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300Watt TUBE PRE/BIPOLAR POWER BASS AMPLFIER
WARNING! DO NOT USE WITHOUT CONNECTING
LOUDSPEAKER LOAD TO AMPLIFIER
are many different makes of guitar cable available, ranging
PARALLEL CONNECTED SOCKETS
OUTPUT = 200 Watts RMS into 8ohms - 300 Watts RMS into 4ohms
WARNING! DO NOT USE LOAD OF LESS THAN 4ohm IMPEDANCE
DO NOT CONNECT ANY UNBALANCED GROUND CONNECTED EQUIPMENT
TO THE OUTPUT OF THIS AMPLIFIER. USE UN-GROUNDED DIFFERENTIAL
MODE ONLY. IF IN DOUBT REFER TO USER MANUAL
LINE OUT
from fairly inexpensive to very expensive. Each have
GROUND
and very versatile in its own right, but the use of the four
TUNER
SERIES EFFECTS LOOP
RETURN
expansion pushswitches opens up even more possibilities.
SEND
different characteristics, and depending on your particular
ISOLATE CONNECT
LEVEL
LOW
HIGH
ROUTE
LOOP
MUTE
FOOTSWITCH
OUT
BYPASS
LOW CUT – when pushed in, this switch activates a high
guitar will give different results, so experimentation and
MAINS INPUT T3.15AL 250V
WARNING! USE CORRECT FUSE ONLY
help from your dealer is the best advice we can give.
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the preamp circuit which is used to tighten up the sound
-10dB INPUT PAD – normally the input jack connects
when the preamp is required to be pushed into “overdrive”
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for heavy rock playing styles. This helps the sound to
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retain punch and drive without being swamped by the very
position, and is suitable for most purposes. However,
low frequencies which can become “muddy”.
in the case of high output active guitars and preamps,
the signal level may be too high for the input stage to
LOW BOOST – FRQYHUVHO\ WKH /RZ %RRVW VZLWFK
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frequencies in a very warm and musical way.
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impedance to a more suitable value for active guitars
HIGH BOOST – as its name implies this switch boosts
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the high frequencies adding great “presence” and “cut”
required for modern bass playing styles. It adds “snap”
INPUT GAIN BOOST – on the other hand, the input
without adding harshness.
stage may not be “hot” enough for your liking and you
want to use the valve preamp’s natural overdrive tone –
EQ DEPTH – working in conjunction with the Treble
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conjunction with the rotary GAIN control.
capabilities.
TUNER MUTE – by pressing this switch the output of
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BASS & TREBLE EQ ROTARY CONTROLS &
RANGE SWITCHES – although the Treble and bass
on the back panel, thus allowing for silent tuning. The
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mute switch function is also available via a footswitch
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jack mounted on the back panel (optional footswitch is
are fitted with a 3-position rotary RANGE switch which
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selects differing component values for different frequency
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GAIN – this control determines the amount of signal that
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guitar. Experimenting with these controls is advised.
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are clean – high mid settings are in the start of distortion
MIDDLE EQ ROTARY & RANGE SWITCH – as
range – and high settings are in the overdrive range.
stated earlier the Middle circuit is after the valve preamp,
and again is of the cut and boost variety. The Range
EQUALISATION STAGE
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ABH300H.indd
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switch varies the Mid centre frequency between 400Hz,
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OPERATING MANUAL AND USER GUIDE
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and turns the HT supply on or off to the valve preamp
middle frequencies react are possible.
circuit.
OUTPUT VOLUME – this quite simply controls the
MAINS POWER SWITCH – this is self explanatory
output of the preamp, giving you the required sound level
in that it turns the mains power supply coming into the
and balance that you require.
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ACTIVE SWITCH – WKLV LV SULPDULO\ D 6WDQGE\ VZLWFK
Rear Panel
300Watt TUBE PRE/BIPOLAR POWER BASS AMPLFIER
LOUDSPEAKER OUTPUT SOCKETS
WARNING! DO NOT USE WITHOUT CONNECTING
LOUDSPEAKER LOAD TO AMPLIFIER
PARALLEL CONNECTED SOCKETS
OUTPUT = 200 Watts RMS into 8ohms - 300 Watts RMS into 4ohms
WARNING! DO NOT USE LOAD OF LESS THAN 4ohm IMPEDANCE
DO NOT CONNECT ANY UNBALANCED GROUND CONNECTED EQUIPMENT
TO THE OUTPUT OF THIS AMPLIFIER. USE UN-GROUNDED DIFFERENTIAL
MODE ONLY. IF IN DOUBT REFER TO USER MANUAL
LINE OUT
GROUND
TUNER
SERIES EFFECTS LOOP
RETURN
SEND
ISOLATE CONNECT
LEVEL
LOW
HIGH
ROUTE
LOOP
MUTE
FOOTSWITCH
OUT
BYPASS
MAINS INPUT T3.15AL 250V
WARNING! USE CORRECT FUSE ONLY
TUNER OUT & MUTE FOOTSWITCH – as stated
level – it may work, it may not!
earlier regarding the Tuner Mute front panel switch, your
tuning device can be connected here and, if required,
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D $OELRQ VLQJOH IRRWVZLWFK RSWLRQDOO\ DYDLODEOH FDQ EH
circuit if not being used, which is best practise if not using
plugged in to facilitate remote operation.
the effects loop.
SERIES EFFECTS LOOP – WKLVFRQVLVWVRIWKH6HQG
LINE OUT – the Line Out jack is fed post preamp and
and Return jack sockets, Level switch and Route switch.
post FX Loop. It is an unbalanced signal for connection into
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feed the input of your remote effects system, whilst the
for feeding into a PA system/recording system, etc. The
Return socket connects the output of your effects back
ground switch will either connect the output jack’s ground
into the amplifier circuit. Please remember that the loop
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is of the “series” type, so that the entire signal is sent and
to defeat ground loops, will lift the ground via a ground lift
returned back to the amplifier. The Level switch has Low
network.
and High settings, the setting of this will be determined
by the performance quality of your effects system. Low
LOUDSPEAKER OUTPUTS – $%++LV¿WWHGZLWK
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0dbV. Experiment with the Level switch to see what suits
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your system best.
not connect to any speaker system whose total impedance
is less than 4 ohms!
Effects Loops in general are designed to work with rack
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for this is that most floor pedals do not have enough
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headroom to let the signal pass through without causing
the use of up to 2 cabinets at any time.
the signal to distort unduly. Also loops are designed for
unity-gain systems (i.e. what goes in, comes back out at
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suited for time based processors like chorusing and delays,
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JUDSKLF(4DQGVWXGLRW\SHFRPSUHVVRUV'H¿QLWHO\GRQRW
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is designed to deliver the maximum power into its internal
– it really will not sound good, and be very, very noisy! If
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you have a good floor type processor, then by all means
output connector mounted on the rear of the cabinet.
experiment for your time delay type effects – use the low
This is an 8 ohm only output and is fed via a passive
5
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OPERATING MANUAL AND USER GUIDE
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bass cabinet for extended low frequency operation when
rated 20mm glass fuse
required.
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250V rated 20mm glass fuse
MAINS INPUT – the mains input receptacle allows for
the connection of the mains power cord, and also houses
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Warning! Where fuses specified are rated at
be250V
awareplease
that thisbeis aware
the rating
fuse is
value
NOTofthe
thatof this
the and
rating
fuse value and NOT the rating of your particular
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is supplied to work with the mains supply in your country.
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If in any doubt, please check with your supplier. It is of
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utmost importance to use the correct earthed and rated
Weight = 13.2Kg
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CONNECTING
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(GROUND)
WIRE.
CONNECTING THE EARTH (GROUND) WIRE.
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load.
In the case of the mains fuse blowing, this can be changed
by removing the power cord connector from the amplifier
2 off 7025/12AX7/ECC83 double triode small signal valves
receptacle and with the aid of a small screwdriver the small
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drawer in the receptacle can be withdrawn allowing access
to the mains power Fuse.
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stage
WARNIN
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VALUE ONLY!
VALUE
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250V rated 20mm glass fuse
A WORD OF ADVICE about fuses – if a fuse blows
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it is usually for a very good reason, it could be anything
rated 20mm glass fuse
from a voltage spike on the mains power, to a serious
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malfunction of your amplifier. Fuses are there for your
rated 20mm glass fuse
protection – treat them with respect, and never replace with
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the wrong value!
250V rated 20mm glass fuse
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Warning! Where fuses specified are rated at
be250V
awareplease
that thisbeis aware
the rating
of this
fuse is
value
NOTofthe
that
theand
rating
fuse value and NOT the rating of your particular
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load.
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Weight = 29.5Kg
load.
CAUTION!
CAUTION! There are no
user serviceable parts mounted
There
are
no user
serviceable
parts
mounted
inside
your
amplifier!
Refer
servicing to
suitably
qualified
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personnel.
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2 off 7025/12AX7/ECC83 double triode small signal valves
WXEHV
7KHUPRVWDWLFDOO\)DQDQGSDVVLYHFRROHG%-7SRZHURXWSXW
This means that for your own safety and the
correct performance of your amplifier, do not
open the chassis unless you really do know what
you are doing!
stage
0DLQV)XVH 9+]VXSSO\ 7$/WLPHODJ
250V rated 20mm glass fuse
0DLQV)XVH 9+]VXSSO\ 7$/WLPHODJ9
rated 20mm glass fuse
&
ABH300H.indd
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6
2011-5-5
18:34:34
OPERATING MANUAL AND USER GUIDE
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ABH300H.indd
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2011-5-5
18:34:34
OPERATING MANUAL AND USER GUIDE
&
ABH300H.indd
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www.albionamps.com
The information in this brochure is subject to change without notice.
All rights reserved © 2010 Albion. Albion is a member of the IAG Group.
2011-5-5
18:34:35