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power tube. If tube failure is not the cause, the amp
should be taken to a qualifi ed service center for
repair. Replace broken fuse only with the same type –
slow blow T0.4A
18. Speaker outputs: connect a speaker/cabinet
to the output that matches the speaker/cabinet
impedance. Always match the amplifi er's speaker
output impedance to the impedance of the speaker
that is being used. Use only one type impedance
output at a time. Use only high quality speaker cables,
never use guitar cable as a speaker cable!
connect the foot switch cable
here to be able to turn Reverb and Tremolo effects on
and off via the foot switch. If there is nothing plugged
in the Footswitch input, both the Reverb and Tremolo
effects are active (but can be turned off by turning
down the Reverb knob and Tremolo Depth knob).
We, Mad Professor Amplifi cation Ltd, Kauppakuja 2, 14200 Turenki Finland, declare under our sole
responsibility that this MAD PROFESSOR Old School 21RT guitar amplifi er to which this declaration pertains
to is in conformity with the following harmonized standards:
*EN 50081-1 (1991)
Electromagnetic compatibility. General emission standard.
Part 1: residential, commercial and light industry;
*EN 50082-1 (1991)
Electromagnetic compatibility. General immunity standard.
Part 1: residential, domestic and light industrial environment;
*EN 60065-1 (1993)
Household electric apparatus.
Part 7: heating under normal operating conditions;
*EN 60335-1 (1988)
Safety of household and similar electrical appliances.
Part 1: general requirements.
Following the provision of Council Directive 98/336/EEC on the approximation of the laws of the Members
States relating to electromagnetic compatibility and the provisions of Council Directive 73/23/EEC on the
approximation of the laws of the Members States relating to low voltage and electrical safety.
Turenki, Finland, 2 July 2010
Harri Koski
This product is manufactured by
MAD PROFESSOR AMPLIFICATION LTD
SPECIFICATIONS:
- Combo 20 kg / 44 lbs
- Head 13,5 kg / 30 lbs
Specifi cations are subject to change without notice!
Finland
OWNER'S MANUAL
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Summary of Contents for Mad Professor Old School 21 RT
- Page 1 We, Mad Professor Amplifi cation Ltd, Kauppakuja 2, 14200 Turenki Finland, declare under our sole responsibility that this MAD PROFESSOR Old School 21RT guitar amplifi er to which this declaration pertains to is in conformity with the following harmonized standards: *EN 50081-1 (1991) Electromagnetic compatibility.
- Page 2 FRONT PANEL: WARNING! – IMPORTANT SAFETY INSTRUCTIONS cable in here. As the name implies this amplifier is designed for clas- Sets the gain of the preamp, higher settings WARNING! – THIS APPARATUS MUST BE EARTHED/GROUNDED! sic guitar tones from the 50’s to modern times. You will produce distortion are able to get legendary tones from both sides of The PLEASE read this instruction manual carefully before switching on.
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