Marshall Amplification MG15 Series owner manual Effect Parameter Description, Adjustment

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14. Digital FX PRESET / ADJUST control (MG15DFX only)

This control serves a dual purpose. Not only does it allow you to select one of the four types of effects on offer (Reverb (RVB), Delay (DLY), Chorus (CHR) or Flange (FLG)), it also allows you to change a parameter as you sweep it through each of the four effect segments. The parameter you can adjust for each of the four effects is shown below:

Effect	Parameter	Description
	(adjustment*)
Reverb (RVB)
	Reverb Decay Time	A natural sounding Reverb that never sounds
	(from short to long)	harsh or grainy. Short Reverb times produce a
		plate type effect while longer Reverb times
		produce much larger sounding hall-type effects.
Delay (DLY)
	Delay Time	Short Delay Times will automatically have less
	(from short to long)	repeats for groovy surf tones. Increasing the Delay
		Time automatically increases the number of
		repeats for a much more atmospheric effect.
Chorus (CHR)
	Speed	At slow Speeds a mellow phase-like sweep
	(from slow to fast)	occurs. As the Speed is increased a more
		traditional chorus effect is heard. At maximum
		Speed, a psychedelic vibrato results.
Flange (FLG)
		At slow Speed settings the amount of
	Speed
	(from slow to fast)	regeneration is automatically increased for huge
		‘jet engine-like’ sweeps. As the speed is increased
		the regeneration decreases to produce a lush,
		natural sounding flange effect. When the Speed is
		maxed out, a fast vibrato results.

*as you turn the control clockwise through the segment dedicated to that effect

15. Digital FX LEVEL control (MG15DFX only)

This controls how much of the chosen effect gets mixed in with your unaffected (dry) guitar tone. Want to hear more of the DFX you’ve just dialled in? Then simply turn this up!

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