I own the A4 and i think the Synthmaster plugin is one the of the best out there. It’s super light in CPU and with loads of wav samples you can pretty much build any sound you want. The filters are amazing, so are the FX which is a big part in emulating A4 sounds as most people will use onboard FX…

Now, its a different workflow for sure and the limitation on the A4 makes it sound the way it sounds but you can do Unison stuff on the Synthmaster never heard of, it’s an incredible Synth !

http://www.kv331audio.com