Ashdown PM 20 Combo

INPUT

The sensitivity of the single jack instrument input socket has been designed to suit passive guitars such as a standard Strat. This also has sufficient headroom to cope with double humbucker and active guitars.

CHANNEL 1

Channel 1 is the CLEAN channel. This has sufficient GAIN to allow the introduction of a degree of crunch if required.

GAIN

Settings of the GAIN control between zero and 12 o’clock are intended to provide a clean guitar signal through this channel. Settings from 12 o’clock onwards will start to add a slight edge to the sound, progressing through to a definite crunch as the control is advanced to its maximum setting. The actual settings for this control will depend very much on the output level of the guitar being used.

TREBLE, MIDDLE, BASS

The Treble, Middle and Bass tone controls are a traditional passive guitar tone circuit and as such are an interactive set of tone controls. This type of circuit provides the best overall character for the guitar, giving a classic, vintage, full-bodied guitar tone.

VOLUME

This channel has its own VOLUME control for adjusting the volume level of the clean channel

independently. This is preferable to the common practice of having no volume control for the clean channel where clean volume level has to be set by the MASTER control. This is always a compromise as to increase the level of the CLEAN channel you have to increase the level of the MASTER and then turn down the LEAD channel to restore a balance between the two. We are sure you will appreciate this small but significant addition.

CHANNEL SELECT

This push button selects between channel 1 and channel 2 as indicated by the LED’s either side of it. A foot-switch plugged into the rear panel F/S jack socket can also operate this function. This needs to be a 2 way foot-switch with the second switch operating the Channel 3 facility.

CHANNEL 2/3

Channel 2 is the LEAD or OVERDRIVE channel and has much higher gain settings than channel 1. Channel

3 is operated from the rear panel foot-switch and introduces a gain boost to channel 2. This can be used to jump from power chords to a screaming, high-gain, lead sound.

GAIN

Loads more crunch than the Gain control for channel 1.

TREBLE, MIDDLE, BASS

The Treble, Middle and Bass tone controls are a traditional passive guitar tone circuit and as such are an interactive set of tone controls. This type of circuit provides the best overall character for the guitar, giving a classic, vintage, full-bodied guitar tone.

VOLUME

This is the channel 2 VOLUME control for adjusting the volume level of the LEAD/OVERDRIVE channel independently.

MASTER SECTION

REVERB

This sets the overall level of reverb added to both channels.

VOLUME 1

This sets the overall volume level of the amplifier with the balance between the two channels being adjusted with their own independent volume controls.

VOLUME 2 (Peacemaker 40 & 60 ONLY)

The 40 and 60 Watt models have 2 Master Volume controls that can be switched between with either the front panel push button or a foot-switch connected to the rear panel MASTER 1/2 foot-switch socket. This is a very useful facility as it allows for instant switching between 2 pre-set volume levels on either channel

1 or channel 2. LED’s at the bottom right hand side of the controls indicate which is active.

VU METER

This indicates the output level of the power stage of the amplifier.

STANDBY  SWITCH

This is to put the amplifier into a STANDBY condition keeping the tubes warmed up and ready for use as soon as it switched on. Keep this switched OFF for at least 1 minute when powering up the amplifier with the mains ON/OFF switch. The life of the tubes will be extended quite considerably if you do this every time you use the amplifier.

MAINS POWER  SWITCH (this is on the rear panel on the 20 Watt model)

This is the main power switch for turning ON/OFF the power from the mains inlet socket to the amplifier. Always keep the STANDBY switch OFF for at least 1 minute after turning this switch on to allow time for the tubes to warm up.