3
DSL 100 & DSL 50
Front Panel functions
1. Power Switch
On / Off Switch for mains power to the amplifier.
2. Standby Switch
Controls H.T. or high voltage to the valves to
allow them to attain correct working temperature
before playing. To prolong the life of the valves it is
always advisable to switch on the Mains Power
Switch (item 1) about 2 minutes before switching on
the Standby (item 2).
On switching off, the Standby should always be
switched before the Power Switch.
The standby facility is particularly useful live
between sets and before playing, as it allows you to
keep the valves operating at a functional temperature
but without any sound being produced.
3. Deep Switch
The Deep Switch adds a tuned or resonant bass
boost to your sound, increasing bottom end thud,
without making your tone woolly around the all
important low end.
4. Presence Control
Adds higher frequencies to the guitar tone, creating
crispness and bite. Turning this up will make the
sound more cutting and in your face.
5. Treble Control
Controls the high frequencies of the guitar tone,
making your guitar sound brighter when increased.
6. Middle Control
Dictates the middle register of the amplifier.
Turning this up will make your guitar sound fatter.
Conversely reducing the amount of middle in your
tone will result in a sharper and thinner guitar sound
for the classic “scooped” tone.
7. Bass Control
Controls the amount of low frequencies or bottom
end in your tone.
8. Tone Shift
The Tone Shift Switch reconfigures the tone
network components to give a new dimension to
passive tone shaping. With the switch selected to the
“in” position and the Middle Control (item 6) turned
down the result is a scooped mid sound ideal for
certain classic metal styles.
Reverb
9. Channel B
Controls the reverb level on Channel B.
10. Channel A
Controls the reverb level on Channel A.
Ultra Gain / Channel B
11. Volume
Governs the volume level of Channel B.
12. Lead 1 / Lead 2 Switch
The DSL 100 and DSL 50‘s Channel B features
two modes. The first, Lead 1, gives an open high
gain crunch, with traditional Marshall characteristics,
similar to a hot-rodded JCM 800 2203 master
volume. The Lead 2 mode however gives a mid-
boosted tone coupled with even higher gain
possibilities.
13. Gain
Controls the gain level for Channel B. As the
amount of gain increases so will the distortion level in
your sound.
14. LED
Indicates when Channel B has been selected.
15. Channel Switch
Selects Channel A or Channel B.
16. LED
Indicates when Channel A has been selected.
Classic Gain / Channel A
17. Volume
Governs the volume level of Channel A
18. Clean / Crunch
As with Channel B, Channel A features two
modes. The first, Clean, is reminiscent of an early
1959 Plexi Super Lead head. Depending on Gain
settings (item .19) this mode will take you from clean
to a controlled Plexi style crunch. Crunch will take
you up to a JCM 800 2203 style grind.
19. Gain
Controls the gain level for Channel A. As the
amount of gain increases so will the distortion level in
your tone.
20. Input
Jack input for guitar.
