The gigging players perfect companion, surely. Dial in a perfect EQ, minimise your feedback, tune your guitar... the perfect link between your Maton EM325C (I know you've got one) and your QSC K12 speaker (yep). 

Model: LR Baggs Venue Full Isolation DI
Made: China, recent model
Type: pre-amp/tone-shaper/DI
Power: 9v negative supply (not included) or phantom power
Equivalent new street price (approx): $499aud
Mods: none
Accessories: no box or manual
Condition notes: used, no major marks, very good condition