Polytron - SPM-MM4 B/G referenced PolyCompact, quattro modulator AV / TV mono product produced by high technology. SPM-MM4 B/G became irreplaceable of foundations. SPM-MM4 B/G referenced product which is satisfy the customer's needs, offers advantages of quality and cost. It produced result of tests of laborotory for years. SPM-MM4 B/G referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.
