1. Input - Plug your guitar in here. Always use a good quality screened guitar lead.

Clean Channel

2. Bright Clean Mode Indicator - When the green LED is on Bright Clean Mode is selected.

3. Bright Clean Mode Select - Press this switch to select the Bright Clean Mode.

4. Warm Clean Mode Indicator - When the yellow LED is on Warm Clean Mode is selected.

5. Warm Clean Mode Select - Press this switch to select the Warm Clean Mode.

6. Clean Gain - The Clean Gain control adjusts the amount of the Clean Channel’s overdrive or distortion. Low settings, counter clockwise, will deliver a clean sound. As the Clean Gain control is increased clockwise the sound will begin to break-up, delivering a subtle overdrive.

7. Clean Volume - This controls the volume of the Clean Channel. Turning it clockwise increases the volume.

Overdrive Channel

8. Crunch Mode Indicator - When the orange LED is on Crunch Mode is selected.

9. Crunch Mode Select - Press this switch to select Crunch Mode.

10. Super Crunch Mode Indicator - When the red LED is on Super Crunch Mode is selected.

11. Super Crunch Mode Select - Press this switch to select Super Crunch Mode.

12. Overdrive Gain - The Overdrive Gain control adjusts the amount of the Overdrive Channel’s overdrive or distortion. Low settings, counter clockwise, will deliver a clean sound on the edge of break-up. As the Overdrive Gain control is increased clockwise the sound will become more overdriven, moving through beautiful crunch tones until, at its maximum position, a full distorted tone is arrived at.

13. Overdrive Volume - This controls the volume of the Overdrive Channel. Turning it clockwise increases the volume.

Equalisation

14. Bass - The Bass control adjusts the amount of low-end frequencies in your tone. This amp has an advanced tone shaping circuit which allows the tone to be tight and cutting, counter clockwise, to warm and thumping, clockwise.

15. Middle - The Middle control adjusts the amount of middle frequencies in your tone. The middle frequencies are particularly important in setting the amount of ‘body’ your tone has. With the Middle control set to its minimum position (fully counter clockwise) the sound will be aggressive and scooped, a tone ideal for aggressive rhythm playing. As the Middle control is increased (clockwise) the amount of ‘body’ is increased, which is more suitable for sustained lead guitar tones.

16. Treble - The Treble control allows exact adjustment of the treble frequencies within the sound. At low settings (counter clockwise) the sound will be warm and darker in character. As the Treble control is increased (clockwise) the sound will become brighter. At the maximum settings the sound will be aggressive and cutting.

17. ISF (Infinite Shape Feature) - The ISF control works in conjunction with the Bass, Middle and Treble controls. It allows you to choose the exact tonal signature you prefer. Fully counter clockwise has a more American characteristic with a tight bottom-end and more aggressive middle, and fully clockwise has a British characteristic which is more ‘woody’ and less aggressive.

Master

18. Resonance - The Resonance control sets the overall bass response of the S1-100. At lower settings the cleans will be tight and funky and overdrives will be focussed in their bass response. At increased settings the clean sounds will be become full and warm, whilst the crunch and overdrive tones will be more bass heavy and resonant.

19. Presence - The Presence control sets the overall treble response of the S1-100. Percussive high-end can be accentuated on clean sounds and the amount of aggressive treble controlled with crunch and overdrive settings.

20. Volume - This controls the overall volume of your amplifier. Turning it clockwise increases the volume.

21. DPR (Dynamic Power Reduction) - The DPR control allows the output power of the S1-100 to be reduced anywhere from 100W (100%) down to 10W (10%) of the rated power.

22. Power Indicator Light - The power indicator will light when the amplifier is switched on.

23. Standby - This switch applies the H.T. (High Tension) voltage required to produce sound to the output stage. Always turn this switch on at least 30 seconds after the Power switch (24). During short breaks in playing use just this switch to turn ‘off’ and ‘on’ the amplifier’s output.

24. Power - This switch is used to turn the amplifier on and off. You should always turn this switch on before turning on the Standby switch (23).

Rear Panel Features:

1. Mains Input - The supplied detachable mains lead is connected here. The lead should only be connected to a power outlet that is compatible with the voltage, power and frequency requirements stated on the rear panel. If in doubt get advice from a qualified technician.

2. Mains Fuse - The value of the Mains Fuse is specified on the rear panel. Never use a fuse of the incorrect value or attempt to bypass it.

3. H.T. Fuse - The value of the H.T. Fuse is specified on the rear panel. Never use a fuse of the incorrect value or attempt to bypass it.

4. Footswitch - The supplied footswitch is connected here. The footswitch enables you to switch between the Bright Clean, Warm Clean, Crunch and Super Crunch modes.

5. MIDI Thru - Any MIDI data received at the MIDI In socket is passed out of the MIDI Thru socket so that other MIDI devices can be placed in a chain. The MIDI Thru socket also serves as a way of dumping Channel Select/Program Change data to a suitable MIDI storage device. Refer to the MIDI Channel Switching section for more details. Always use a good quality MIDI lead.

6. MIDI In - If channel switching using MIDI is required, connect the MIDI device here.  Always use a good quality MIDI lead.

7. Impedance Selector - This control matches the amplifier’s impedance to that of the connected speakers.

8. Speaker Outputs - There are two parallel speaker outputs for connecting external speaker cabinets. When connecting speakers always ensure that the Impedance Selector (7) is set correctly.

9. Speaker Emulated Output - This output emulates the tonal characteristics of a guitar speaker cabinet and provides a natural valve overdrive tone for connection to a recording device or mixing desk. Always use a good quality screened lead. There is both a jack and a balanced XLR output.

10. Effects Loop Level - The Effects Loop Level switch sets the effects loop to either +4dBV/-10dBV, which enables you to use it with either professional equipment (+4dBV setting), or with guitar level effects such as effects pedals (-10dBV setting).

11. Effects Loop Return - Connect the (mono) output of an external effects unit here.

12. Effects Loop Send - Connect the (mono) input of an external effects unit here.

Specification:

• Power (RMS)...................100 Watts
• Valves.............................4 x EL34, 3 x ECC83, 1 x ECC82
• Weight (kg)......................23.2
• Dimensions (mm):.............705 x 285 x 278.5
• Footswitch:.......................FS-2 supplied