1. Input Jack

Plug the lead from your guitar in here. The high impedance of this input will help you to get the best from the passive or active piezo or magnetic pick-ups.

2. Volume Control

Controls the volume level of the Acoustic Channel 1. A good place to start with this control is the half way, or 12 o’clock position, then adjust according to the sensitivity of your pick-up.

3. Bass Control

Adjusts the amount of bass, or bottom end of the instrument’s tone. Care should be taken when setting this control as adding excessive bass can cause unnatural howling. Again, the half way position is the best place to start.

4. Treble Control

Adjusts the treble, or top end of your sound.Careful adjustment will make your high notes lively but not too harsh. It is worth noting that set in higher positions, this control will induce a certain amount of noise.

5. Phono Inputs

Inputs to take connection from a tape or CD player.

6. Microphone Input

Balanced XLR type input for connection of a microphone and suitable for vocal or instrument applications. This input supplies phantom power.

7. Jack Input

Input to take any source, such as a drum machine,keyboard, etc.

8. Volume Control

Controls the volume level of the Microphone / Aux Channel 2. A good place to start with this control is the half way, or 12 o’clock position, then adjust according to the sensitivity of your pick-up

9. Bass Control

Adjusts the amount of bass, or bottom end of your sound. Care should be taken when setting this control as adding excessive bass can cause unnatural howling. Again, the half way position is probably the best place to start.

10. Treble Control

Adjusts the treble, or top end of your sound. Careful adjustment will make your high notes lively but not too harsh. It is worth noting that set in higher positions, this control will induce a certain amount of noise.

Master Section

11. Chorus Assign Switches

Allows the built in Chorus effect to be selected on either channel individually, or both channels together.

12. Chorus Speed Control

Controls the speed of change of frequency for the built-in Chorus effect.

13. Chorus Depth Control

Controls the amount of change of the frequency shift for the built-in Chorus effect.

Note: When using the Chorus, higher speed settings usually sound better with lower depth settings and vice versa. Experiment to find which selection suits you best.

14. Reverb Balance Control

Controls the balance of the Reverb effect and the parallel effects loop between Channel 1 and Channel 2.

15. Reverb Level Control

Controls the overall level of the Reverb effect.

16. Phase Switch

Switching the phase can considerably reduce the amount of low frequency acoustic feedback.

17. Notch Filter Switch

Further feedback reduction can be achieved using the selectable frequency notch filter. When activated, the filter cuts by 10dB the frequency

selected using the rotary control (item 18).

18. Frequency Control

If feedback occurs when the Master Volume is set to the desired performance level, select the switch (item 17) and rotate this control until the offending frequency is eliminated.

19. Master Volume

Controls the overall volume output from the amplifier.

20. Power Switch

This is the On/Off switch for the mains power to the amplifier. When it is switched ‘On’, the switch will light. Please ensure the amplifier is switched off and unplugged from the mains electricity supply before being moved.

1. Mains Input

Your amp is provided with a detachable mains(power) lead that is connected here. The specific mains input voltage rating that your amplifier has been built for is clearly marked on the back panel.Before connecting for the first time, please ensure that your amplifier is compatible with your electricity supply. If you have any doubts, please get advice from a qualified person. Your Marshall dealer can help you in this respect.

2. Footswitch Jack

Jack socket for connection of the optional footswitch (model PEDL-10029) for switching the Reverb and Chorus functions on and off.

3. Line Out Jack

Jack socket for connection to home recording or other external equipment with jack inputs.

4. DI Out

XLR type output for connection to PA or similar external equipment.

Note: Both the Line Out and DI out carry exactlythe same signal at different levels and both are placed before the Master Volume so changing the overall level of the amplifier will not affect the signal from the DI or Line Output.

5. Effects Send Jack

Jack socket to connect to the input of an external effects processor.

6. Effects Return Jack

Jack socket to connect to the output of an external effects processor.