Ketron Keyboards

Best natural Sounds
Free OS upgrades
Designed for Pro Use
Free Styles


Ketron SD4download brochureThe Ketron SD4 is a pocket sized sound module designed for all PC and MIDI applications. The module is equipped with a new, powerful sound engine including a Professional Grand Piano sample (across 88 notes), huge orchestral and beautiful voices such as Saxophones, Brass, Woodwinds, Guitars, accordions, organ digital drawbars and many others. The quality of sound is what we have come to expect of Ketron (Best Natural Sound) making it ideal for use in Studio and Professional applications.


One of the main features of the SD4 is the panel interface. This enables users to easily setup three parts; ideal for use with Accordions, Electronic Organs, Keyboards etc. Due to its small size format it will easily sit on the panel of a master keyboard.

Using with a Computer takes the SD4 to a new level due to the inclusion 82 Audio Drum Loops ready to be inserted into your sequencer. To make this easier we have provided sound Map templates for many popular sequencer programs which along with loop libraries can be downloaded free of charge. (see support & downloads)


Sound Generation Stereo Grand Piano, 512 voices: 3 GM Banks + 1 Special Bank
64 Factory Presets Voices, 64 User Presets Voices.
Drum 1 32 New Drum sets.
Drum 2 82 Drum loops, featuring Acoustic, Latin, Jazz and Dance audio Loops.
Polyphony 64 notes.
Effects Multi effect DSP. Reverberation, Chorus, Delay, Distortion, Rotor Slow/Fast.
Operation Modes Master Keyboard, Accordion, Organ, 2xMidifile
General Functions global Transpose, Keyboard Transpose, Midifile Transpose,
Intelligent Transpose, Fine Tuning, Keyboard Split, Midi Reset
Midifile Functions Volume, Program Change, Solo, Lead Voice On/Off
Midi 2 Midi In, 1 Midi Out (Soft Thru). 32 Midi Channels. GM standard
USB Interface,  Midi activity led.
Outputs Stereo headphone, Stereo Output Left/Right
Display Alphanumeric 3 x 7 LED segments
Tabs 24 input buttons. 0 – 9 Numeric Select
Potentiometers Master Volume, Voice Volume, Midifile Volume
Dimensions L x W x H = (21x12,3x6,5 cm) (8,3x4,8x2,6 inches)
Weight 0,9 Kg. (2 lbs)
Power External 9 Volts Power supply (included)