AER make some of the best amps for acoustic instruments available anywhere, and this is also a very well designed and useful little tool. As used by Tommy Emmanuel, this little box of glory is a DI, but with a seperate outs and level controls for line and XLR, powerful parametric EQ and an enhancer for bringing out the tonal complexity of your guitar (or other instrument!) that is sometimes lost with pickup systems. They cost heaps new, so nab this basically-mint example for a lot less.

Model: AER Pocket Tool Colourizer 
Made: Germany, recent model
Type: pre-amp/tone-shaper/DI
Power: 24v negative supply (included) or phantom power
Equivalent new street price (approx): $749aud
Mods: none
Accessories: original padded bags (one for pedal, one for power/docs)
Condition notes: used, no major marks, excellent condition