All SL MIDI Controllers are designed to control other devices or virtual instruments. For this reason they don't include a sound generation and don't have audio outputs.
Does SL Editor include sounds?add
No, the SL Editor application allows to control all the parameters of a SL controllers with a user-friendly interface.
What is the difference between SL88 Studio and SL88 Grandadd
All SL controllers offer the same functions. The differences are the number of keys (73 or 88) and the type of keyboard. The Grand version keyboard offers a more premium touch but at the same time increases the overall weight of the instrument. The choice is purely subjective and we suggest you to try the difference with your hand.
Numa Compact 2
No sound comes from the speakers. They are broken?add
Go to GLOBAL EDIT > SPEAKERS and select AUX. Check the User Manual for more details.
What is the difference between a Numa Compact 2 and a Numa Compact 2xadd
While Numa Compact 2 uses Samples for all sounds, Numa Compact 2x is equipped with two additional engines to generate the Organ Synth sounds.
Does this mean that the Organ and Synth sounds of the Numa Compact 2 are not good?add
The quality of sounds of Numa Compact 2 and 2x can be comparable. However the two additional engines of the Numa Compact 2x allow to edit the parameters of the Organ and Synth sounds in real time.
Why does the display go off by itself sometimes?add
The display is equipped with a protection that deactivates it if it is not used for a while. Just push any key to reactivate it.