The JJazzLab SoundFont is optimized for JJazzLab with a good trade-off between sound quality and ease of set up.
This free SoundFont contains 128 high-quality GM sounds plus some extra sounds. It also contains 14 XG-compatible drum kits.
📂 Download JJazzLab-SoundFont.sf2 (from Musical Artefacts web site).
With VirtualMidiSynth (recommended for Windows)
With FluidSynth (recommended for Linux/MacOS)
With the Java internal synth (all OS, easiest setup but lower sound quality)