Just bought a used Boulder Creek 5 string. Beautifully made, built like a tank. As many reviewers have noted, it is loud enough for an acoustic jam, no amp required. I am hoping to make this box SING like a great acoustic guitar does. Definitely want to experiment with 3 note chords and voiceings, not just bass lines. Tones I'm hoping are: 1) Booming and ringing bass, not thumping. 2) Clear mid-range, not a covered up sound; 3) Highs need to be bell-like and bright, not tinny. The endless quest! I already know that TI acousticores are out. What do you suggest? Many thanks.