AS50R EQ solutions

[wayfarer]

Hi, New member, just joined. I have just bought a Marshall AS50R amp.Just wondering if any acoustic users can suggest any pedals or offboard devices to give me more EQ shaping before the signal goes into the amp. The amp only has bass, treble, volume with chorus and reverb. Any help would be appreciated.

 

[blue]

I use a Fishman Aura between my guitar and amp, makes the piezo pickups sound a lot more like a real acoustic