Valve Heaven The Stack User Manual - page 4
Customising the sound of The
Customising the sound of The
Customising the sound of The
Customising the sound of The Stack:
Stack:
Stack:
Stack:
•
The Stack is expressly designed to allow you to customise the tone of your amp by
changing valves.
•
Your amp comes fitted with a 12AX7 valve in the preamp position (left valve) and a
12AT7 in the power valve position (right valve).
•
Every brand of 12AX7/ECC83 and 12AT7/ECC81 has a unique sound. You can
customise your tone by substituting different brands of valves.
•
In addition, there are a wide range of alternative valve types available which have
different gains/sounds which can be plugged into your Stack to provide custom tones.
•
Valves which can be used in the preamp position include 12AX7, 12AT7, 12AY7, 5751,
12AZ7, ECC81, 12AV7, 7025, CC81E, CV4004, CV4024, CV455, CV492, ECC801,
ECC803, M8137, 6201.
•
Valves which can be used in the power amp position include 12AT7, ECC81, 6201,
12AU7, 5814, 12BH7, 5965, 6414, 7062, CC81E, CV4003, CV4024, CV455, CV491.
•
Valves can be changed while The Stack is turned on so that you can very quickly and
easily compare the tone of different valves.
•
To change valves, gently lift the valve from its socket. To insert a valve, locate the pins in
the correct position, and plug in the new valve.
Optional accessorie
Optional accessorie
Optional accessorie
Optional accessories:
s:
s:
s:
•
12V power lead – allows you to power your Stack amp from battery power. This allows for
portable operation for buskers and other “off the grid” operation.
•
Line out cable for recording directly from The Stack.
Specifications:
Specifications:
Specifications:
Specifications:
•
Output power: 1/3W clean power, 1W distorted.
•
Valve complement: preamp 12AX7, power 12AT7.
•
Input impedance: 1M to suit all pickup types.
•
Output impedance: optimised for 8 ohm speakers but will also drive 4 and 16 ohm
speakers.
•
Power: 12V DC from the supplied plugpack or the optional DC power lead.
•
Power rating: 12V DC @ 450mA – 5.4W power consumption.
•
Power protection: protected from reverse polarity connection.
•
Controls: volume/drive with concentric power switch, tone control.
•
Dimensions: 12cm x 8cm x 9cm.
•
Weight packed: 1kg.
Warranty:
Warranty:
Warranty:
Warranty:
Valve Heaven provides a back-to-base 12 month warranty for The Stack amplifier and a 3
month warranty on the valves.
Safety information:
Safety information:
Safety information:
Safety information:
Caution. Do not open. Risk of shock. No user serviceable components inside. To reduce the
risk of fire or electric shock do not expose to rain or moisture.