Donner Med Square Owner'S Manual Download Page 2

Connections & Controls

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Features

Convenient compact size

True bypass

7 modulation effects in one pedal with 

wide tonal range 

Add sound dimensions to your tone 

with selected modulation effects

LED indicator shows working state

Suitable for any music style 

Specifications

Power Requirement: 9V DC center 
negative
Current Consumption: 140mA
Dimensions: 42x93.5x52mm
Weight: 230g

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Input Jack:

1/4” mono audio jack, for 

connecting instruments or other 
pedals.

Output Jack:

 1/4” mono audio jack, 

for connecting to an amplifier or other 
pedals.

DC 9V Jack:

 For power supply, use a 

9-volt DC regulated by AC adapter, 
500mA (plug polarity is positive on the 
barrel and negative in the center).

E.LEVEL Knob:

 

Controls the effect level.

DEPTH Knob:

 

Controls the effect depth.

RATE Knob:

 

Controls the effect speed.

Mode Selector:

 For selecting from 7 

effect types: 

Chorus A:

 Classic analog chorus 

effect

Chorus B:

 Produces a stereoscopic 

chorus effect

Phaser:

 Produces a warm, rich 

analog-voiced phase sound

Tremolo:

 Produces a deep optical 

tremolo effect

Rotary:

 Simulates classic rotary 

speaker sound

Vibrato:

 Produces a vintage analog-

voiced vibrato effect

Flanger:

 Produces a classic flanging 

effect (use the E.LEVEL knob to 
control feedback amount)

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Footswitch and LED:

 Tap to switch 

the unit on/off. The LED will lit up 
when the effect is on.

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