To accompany my review of the Dan D'Agostino Master Audio Systems Progression monoblock amplifier
elsewhere in this issue, I talked to
Dan D'Agostino about the amplifier's design. I started by asking him what were some of the major differences between the
Momentum and the Progression monoblocks?
Dan D'Agostino: I took the best parts of the Momentum's more sophisticated and complex circuitry and put them in the Progression, without using the same high parts count. Each stage of the Momentum's gain amplifier is separate, with input stage and driver stages on separate rails. All of the Momentum's devices are designed for maximum performance in a small package, which requires a lot more of them, and a significantly bigger input card than the Progression's. These differences create subtleties, because I'm able to run much higher current in the Momentum's front end.
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