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HERE ARE A FEW MORE BASIC RULES THAT WILL
EXTEND THE SERVICE LIFE OF YOUR AMP
ENORMOUSLY IF YOU FOLLOW THEM:
• Make sure all peripheral devices and connecting cables are in a
state of good repair! - Ensure plenty of air can circulate around the
amp's ventilation slots at all times your PURETONE's life depends on
it.- Definitely avoid exposure to mechanical shocks and extreme
heat, dust and particularly moisture.
• Be very careful about the kind of peripheral devices you connect
to your amp and always check out their specs before you plug
them in. Never connect speaker cabinets with an impedance
(ohm) rating lower than the PURETONE is designed to handle.
Under no circumstances should you connect devices with high
output signal levels (e.g. power amps) to your amp's input.
• Be sure the AC power source delivers the current that your amp is
designed to handle before you plug it in. When in doubt about the
local rating, ask the venue's sound technician or a stage hand.
• Refrain from DIY repairs! To be on the safe side, you should also
have a qualified technician replace internal fuses.
4.0 TROUBLESHOOTING
1) The PURETONE won't power up when you switch it on:
• It's not getting AC power. Check the mains cable to see if it is
connected properly!
• The mains fuse is defective. Replace the fuse with another fuse of
the same type. If this fuse also blows, be sure to talk to your local
Hughes & Kettner dealer.
2) The PURETONE is connected properly, but no sound is audible.
• One or several GAIN or MASTER controls are turned all the way
down. Dial in higher settings.
• A shorted external speaker cable caused one of the fuses to blow.
Have a qualified technician change the fuse (ensure the
replacement fuse bears the proper rating).
5.0 TECHNICAL SPECIFICATIONS
PREAMP SECTION:
INPUT -10 dBV / 1 M Ohm
POWER AMP SECTION
OUTPUT POWER 40 watts into 8 Ohms
25 watts into 16 Ohms
FREQUENCY RESPONSE 20 Hz - 50 KHz
LOUDSPEAKER (COMBO) 12" Celestion Vintage 30, 16 Ohms
GENERAL DATA
INPUT POWER 230 volts AC (European version)
117 volts AC (North American version)
100 volts AC (Japanese version)
MAXIMUM POWER CONSUMPTION 222 VA
POWER SUPPLY FUSE 1,6 A Slo-blo (230-volt version)
3,15 A Slo-blo (117-volt version)
3,15 A Slo-blo (100-volt version)
ANODE FUSE 1 x 500 mA Slo-blo
DIMENSIONS (W X H X D)
Head: 24.6" x 12.6" x 10.2" (625 x 320 x 260 mm)
Combo: 24.6" x 20.5" x 9.8" (625 x 520 x 250 mm)
WEIGHT
Head: 37 lbs (17 kg) Combo: 55 lbs (25 kg)