Main Audio Output
Use a common 1/4” shielded audio instrument cable (mono, TS type) to connect the synth’s output to a line input
of a mixing board, computer sound interface, keyboard amplifier, or effect processor.
The output impedance is 220 ohms, so it is unnecessary to connect it to a high impedance (HI-Z) input.
You may plug headphones in to this jack, but you’ll only hear sound on one side.
DI Box may be necessary on stage to connect to a PA system.
For best sound quality, always connect the Grenadier to a grounded (earthed) audio system.
Normally the mixing board, amplifier, and/or powered monitor speakers have 3-prong AC
plugs. This provides grounding, which is important to maintain a clean noise oor in the
analog audio signal path.
If every device in an audio system is running from AC adapters with 2 prongs (or batteries)
then the system is electrically ‘oating’. It is likely that the noise oor will be contaminated
with humming, buzzing, and noise from the AC adapters.
Grounding
Grendel RA-99 Grenadier User Guide | Revision 2020-0103