I am very familiar with Coda. They are under new ownership.You can e-mail a fella by the name of Steve who is V.P. of Coda. E-mail adress is coda-continuum.com. I own a Coda 2.5 power amp which is a fabulous 25watt pure class A solid state. It is warm and sweet at the same time. Nothing harsh about this unit. The pre-amps are a perfect match for the 2.5's. I could go on and on but e-mail me with more specifics about your system. [email protected]