A small 6VA transformer powers all service functions out of the audio signal path to preserve the best performance.PA-1175 also powers a conveniently selectable front panel Damping Factor switch sets up 250 or 25 allowing an ideal match with any kind of speakers acting the amplifier full power and great control at 250 DF necessary with large and difficult speakers to drive while acting as a low power tube amps at 25 DF ideal to drive high sensitivity or mini monitor speakers do not agree the energy of big amplifiers.
We introduced a new unique Optical Protection for output stage featuring optical decoupling, to overcome downgrading performances solutions of traditional electronics, that optically analyzes the audio signal. The Optical Protection is completely separated from the audio signal path for perfect protection and unbeatable performance.
Top-level electronic components combined with outer connections RCA, XLR and original Rhodium Gold Note speaker terminals complete the PA-1175 high-level quality.
PA-1175 is built around a very solid steel chassis with thick aluminum panels to avoid RFI and Emi troubles at the same time.