Page 1
THE MK50II 2 CHANNEL 50 WATT HEAD
Spec: 50 watt all valve head. Two channels with foot-switchable master
volumes gain/overdrive and effects loops.
Valves: 2x6L6CHP. 4xECC83s/12AX7WA.
Cabinet: 19mm ply lock-jointed.
Hardware: All corners, screws, cup washers, handle fixings etc. are nickel
plated. Bespoke CNC punched, powder coated grills. 16 Gauge (
1.5mm) powder coated chassis with 14 gauge base / screening plate
secured to chassis with 4 machine screws. Leather handle.
1
Transformers: Custom designed in-house.
Construction
Methods: Hand wired and hand assembled throughout.
Features: Front panel from left to right: Input socket, - Clean Channel:
Volume, Bass, Middle and Treble. Channel select switch. Overdrive
Channel: Gain, Overdrive (foot switchable extra gain with red LED
indicator), Bass, Middle, Treble and master volume. Global controls:
Master 1 and Master 2 (foot switchable for volume lift with green
LED indicator), Presence, Resonance, Standby/Mains switch.
Rear panel from left to right: Mains inlet, Mains fuse, HT fuse,
Speaker impedance selector (4 ,8, and 16ohms), 2 x series effects loop
send and return sockets and footswitch socket.
Accessories
Supplied: Footswitch: hand wired, 16 gauge, powder coated, with 5 metal
footswitches for: Channel, Master 2, Overdrive, Effects Loop 1 and 2
and Effects Loop Auto Assign.
7 metre footswitch lead.
3 metre mains lead.
Speaker lead, 600mm, top quality 8mm cable with nickel-plated
Neutrik jacks.
Page 2
CORNFORD MK50H II FOOTSWITCH
OPERATION
Please ensure front panel channel select switch is pointing towards the
overdrive channel for correct footswitch operation.
CHANNEL SWITCH illuminates green LED when the Clean Channel is
engaged. When the Overdrive Channel is engaged no LED is illuminated.
2
MASTER 2 SWITCH illuminates green LED when Master 2 is operational.
The master volume controls are both global and operate independently of
each other.
OVERDRIVE SWITCH illuminates red LED when the Overdrive control is
operational. This is the case even with the Clean Channel engaged, so that it
is possible to get your solo sound ready whilst still using the Clean Channel.
EFFECTS LOOP 2 SWITCH illuminates green LED when Effects Loop 2 is
engaged.
EFFECTS LOOP AUTO ASSIGN SWITCH allows you to switch between
Effects Loop 1 and Effects Loop 2 automatically when the Channel switch is
used and overrides the Effects Loop 2 switch. When using the Auto Assign
switch, Effects Loop 1 is selected with the Clean Channel and Effects Loop
2 is selected with the Overdrive Channel.
Page 3
Important Safety Instructions
WARNING – When using electrical products, basic precautions
should be followed, including the following:
1. Read all the instructions before using the product.
2. Do not use this product near water – for example, near a bathtub,
wash bowl, kitchen sink, in a wet basement, near a swimming pool or
the like.
3. This product may cause permanent hearing loss. Do not operate for
long periods of time at high volume level or at any level that is
uncomfortable. If you experience any hearing loss or ringing in the
ears, you should consult an audiologist.
4. The product should be located so that its location or position does not
interfere with its proper ventilation.
5. The product should be located away from heat sources such as
radiators, heat registers, or other products that produce heat.
6. The power supply cord of the product should be unplugged from the
outlet when left unused for a long period of time.
7. Care should be taken so that objects do not fall and liquids are not
spilled into the enclosure through openings.
8. The product should be serviced by qualified personnel when:
a. The power supply cord or the plug has been damaged: or
b. Objects have fallen, or liquid has been spilled into the product:
or
c. The product has been exposed to rain or moisture: or
d. The product does not appear to operate normally or exhibits a
marked change in performance: or
e. The product has been dropped, or the enclosure damaged.
3
9. Do not attempt to service the product. All servicing should be
referred to qualified personnel.
10.For continued protection against risk of fire, replace fuses only
with those of the same type and rating as indicated on the back of the
product.
11.Always connect the speaker before switching on.
Page 4
4
GROUNDING INSTRUCTIONS
This product must be grounded (earthed). If it should malfunction or
breakdown, grounding provides a path of least resistance for electrical
current to reduce the risk of electric shock. This product is equipped
with a supply cord having an equipment grounding conductor and a
grounding plug. The plug must be plugged into an appropriate outlet
that is properly installed and grounded in accordance with the local
codes and ordinances.
DANGER
Improper connection of the equipment-grounding conductor can result
in a risk of electric shock. Check with a qualified electrician or
serviceman if you are in doubt as to whether the product is properly
grounded. Do not modify the plug provided with the product – if it
will not fit the outlet, have a proper outlet fitted.
The wires in this mains lead are coloured with the following code:
EARTH NEUTRAL LIVE
U.S.A. Green White Black
U.K. Green/Yellow Blue Brown
VALVES AND FUSES
All valves and fuses fitted to a Cornford amplifier are consumable
items and, therefore, are not covered under the manufacturer’s
guarantee.
CE mark for European Harmonised Standards
The CE mark which is attached to these products means it conforms to
EMC Directive (89/69/EEC), CE mark Directive (93/68/EEC) and
Low Voltage Directive (72/23/EEC).
Loading...