ATC announces availability of P2 Pro
ATC announced the upcoming availability of the P2 PRO Dual Mono Power Amplifier - a dual mono design
delivering 300W of continuous power simultaneously from both channels to drive the most challenging
loudspeaker loads with wide bandwidth and ultra-low distortion.
Hand-built by ATC in the UK, The Class A/B P2 PRO Dual Mono Power Amplifier is a dual mono design,
keeping the power supplies, signal, and return paths discrete. This approach ensures that the amplifier
will achieve maximum signal separation with minimal crosstalk and that intermodulation between channels
via the power supplies is reduced to an absolute minimum across a frequency range of 400kHz. It also means
that the power delivery from one channel cannot affect the specified power available from the other.
Within a new low-vibration 19-inch rack-mount chassis design featuring a precision machined 12.7mm brushed
aluminium front panel, the P2 PRO Dual Mono Power Amplifier’s layout includes a massive, custom-made 400
VA low-noise transformer for each channel and an output stage involving three pairs of MOSFET devices per
channel to achieve peak current output of over 15 amps.
ATC Technical Sales Manager, Ben Lilly said, “The final design of these transformers is the result of
seven design iterations with the goal of achieving best possible audio performance and lowest possible
mechanical noise. This was achieved by using a very high-grade steel core which is then vacuum-impregnated
with high-temperature resin, post-winding. The exceptionally low levels of mechanical hum/buzz along with
convention cooling are vital features if the amplifiers are to be used in control rooms designed with
lowest possible levels of background noise.”
Gain matches that of the P2 PRO Dual Mono Power Amplifier’s lower power P1 PRO Dual Mono Power Amplifier
sibling so that they can be used together in passive bi-amp or tri-amp systems connected via ‘Link’
phono inputs/outputs.