The C712 may not be a tube based preamp but you will be forgiven thinking that it is one when you hear it. Unmistakable McIntosh sound in a very affordable price point. To us, it sounds almost as good as the newer C220 preamp but at a fraction of it cost, it is no-brainer choice on where your dollar should be spent. Unit is in very good condition with a brand new remote. Tone controls are not a necessary evil on the preamp but a useful feature in a system that is going to be being built around it. As the anchor of a $3000 – $5000 system, the tone controls does help add some “balance.” A perfect partner for the MC7100 that we also have for sale.