Laney Cub 212R User Manual - page 10
10
Amplifier connection: In order to avoid damage, it is advisable to establish and follow a pattern for
turning on and off your equipment. With all system parts connected, turn on source equipment,
MP3/CD players, etc. BEFORE turning on your guitar amplifier. Similarly when turning off your
system always turn down the Volume controls on your guitar amplifier and then turn off its power
before turning off other equipment.
Cables: Only use a good quality screened cable to connect your instrument to the amplifier.
Servicing: The user should not attempt to service these products. Refer all servicing to qualified
service personnel.
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This product conforms to the requirements of the following European Regulations, Directives
& Rules:
CE Mark (93/68/EEC), Low Voltage 2006/95/EC, EMC (2004/108/EEC), RoHS
(EU2002/95/EC), WEEE (EU2002/96/EC)
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In order to reduce environmental damage, at the end of its useful life, this product must not be
disposed of along with normal household waste to landfill sites. It must be taken to an
approved recycling centre according to the recommendations of the WEEE (Waste Electrical
and Electronic Equipment) directive applicable in your country.
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In the interest of continued development, Laney reserves the right to amend product specification
without prior notification.
General Notes
• Tube amplifiers; generally sound much warmer/sweeter than solid state transistor amplifiers but they also need a
little more respect due to the fragile glass tubes themselves. The
uses top quality tubes, which should give
CUB-212R
you years of trouble free service, however like all tube amps; it is important to treat it with a certain amount of care.
• Tubes are fragile glass components; they can easily be damaged if thrown in and out of vehicles,
• Make sure the impedance; of your cabinets matches the setting on your amplifier. Improper impedance matching
will result in reduced power output and compromised sound at best and amplifier failure/premature tube failure at
worst.
• Allow the amplifier; to warm up to room temperature before switching it on, the sudden thermal shock generated
can crack the cold glass tube housing plus any moisture is bad news around high voltage electronics.
• Allow the amplifier; to cool down after playing before moving. Hot tubes are more susceptible to damage than
cool ones. Use good quality loudspeaker leads, cheap leads are often not up to the job of handling the large
requirements for loudspeakers and can often short out.
• Tube amplifiers; don't like running into a open circuit. A tubes life expectancy is based upon a number of factors
which include operating temperature, how hard and how often it is played, vibration due to travel etc. Tubes should be
changed in your amplifier if you notice any change in your amplifiers performance etc. They need not be changed at any
regular interval.
• Typical problems; with preamp tubes can be a crackly noise, hiss, hum and microphony. The preamp tubes can
safely be changed with no action required if they fail or reduce in performance. Typical output tube problems can be;
sound lacking in punch, sound lacks extreme highs or lows and low level hum. Exact replacements for the preamp tube
and output tube are available from Laney via your dealer.