UK speaker manufacturers PMC have just announced a new nearfield monitor: the AML2. Replacing the popular AML1, this latest model builds upon the design of its predecessor, incorporating numerous improvements and updates along the way.
Among these updates are a thicker rear panel and steel PSU supports, which are said to reduce low-level cabinet colouration. The EQ and power-supply circuits have also been tweaked, and PMC say that the result of these refinements is lower mechanical and electrical noise, which reduces the speakers’ distortion level to an impressively low 0.009 percent.
The AML2 retains PMC’s well-proven advanced transmission line (ATL) design, which involves sound waves emanating from the rear of the driver travelling down a long path inside the cabinet (1.7 metres, in this model), and out through a vent at the front. The delay incurred by the transmission line means that sound waves leaving the vent are in phase with those coming directly from the front of the driver, extending the speakers’ low-end response — which, on the AML2, goes right down to 33Hz!
Housing PMC’s own 6.5-inch woofer and 34mm soft-dome tweeter, the two drivers are powered by Bryston-licensed amplifiers and integrated with a hand-made, fourth-order active crossover set at 1.4kHz. A pair of these beasties will set you back £5750.
