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LA100SM - user manual
Power Switch: Always make sure there is a load connected to your amp before turning on. This
load can be a traditional speaker cabinet or a correctly matched dummy load device.
Standby Switch: Allow the amplifier to warm up for approximately a minute before switching to the
ON position.
Power Indicator: Indicates that the amplifier is powered up.
Presence: boosts the upper mids and highs within the output section. Should be adjusted to your
personal tastes, '0' is a good starting point.
Bass: Adjusts the low-end response of the signal. As the amplifier is driven harder and louder you
may find the need to dial out a little bass. '5' is a good starting point.
Middle: Adjusts the mid frequency response of the signal. As the amplifier is driven harder and
louder you may find the need to alter the middle accordingly. '5' is a good starting point.
Treble: Adjusts the high frequency content of the signal. As the amplifier is driven harder and louder
you may find the need to adjust the high-end response accordingly. '5' is a good starting point.
Master Volume: Used to adjust the overall volume of the amplifier to the desired listening level. Due
to the unique way the Master Volume circuit is designed, turning the master volume down does not
alter the output sections content to the overall tone. Keep your amazing valve tone intact whatever
level you decide to play at.
Gain: Adjusts the level of Gain/Distortion present in the signal. Also contributes to the overall listen-
ing level of the amplifier.
Bass Input HI : Has a neutral frequency and is great for pedals and boards.
Bass input LO: Has the same tonal characteristics as Bass Input 1 but with a lower gain setting.
Treble Input HI: Has an accentuated high-end response.
Treble input LO: Has the same tonal characteristics as Treble Input 1 but with a lower gain setting.
Channel Jumping: It is possible for a player to mix the tonal and gain characteristics of each input
on the LA100SM by what is known as channel jumping. To do this simply choose the initial channel
you want to use. Let's say the Bass Input 1, connect your guitar as normal. Now using a regular
patch cable connect Bass Input 2 to an input on the treble channel. Choose input 1 or 2 depending
on how much gain you want. The result, you have more treble in your signal without losing the bass
response generated by the Bass Input. Channel jumping can produce some really great sounds so
do not hesitate to experiment.
5
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