Excellent quality machine, All maintenance & service, by Audio Pro, Perfect alignment of heads, excellent wow& flutter .05%, has recent new belt, Power supply heat sink upgrade, Bias control is not accurate, so it has been set C.W.(off) and has been calibrated N.A.B. perfect for Maxell type II tape SX 70us, also ZX calibrated perfect for type IV metal tape. Level control at #9 calibrated to N.A.B standard levels. Virtually no use time, #9 condition (-151708.jpg)