Datasheet

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EDGE-OF-THE-ART MULTI-MONO DESIGN
By design, P2 and P5 amplifiers are powerful independent “monoblock”
amplifiers. Each channel is self-contained on its own glass-epoxy circuit
board and heatsink and benefits from an independent power supply.
Since there is no common audio path between channels there is a complete
absence of crosstalk.
Frequency-response channel matching is superb. The musical picture
is seamless and exquisitely detailed with a multichannel soundstage
that is astonishingly transparent, cohesive and three dimensional.
CASCODED COMPLEMENTARY FEEDBACK INPUT STAGE
P2 and P5 amplifiers benefit from our proprietary input topology—a
unique departure from the classical differential input stage. Eight
low-noise bipolar input devices, hand-matched for superior balance,
are configured in a complementary active-load cascoded feedback
arrangement. Heat shrink tubing applied around each critical input
pair ensures superior thermal tracking.
Designed to reduce distortion, this arrangement not only ensures
exceptionally linear response, but also superior bandwidth and superb
amplifier reliability.
MASSIVE TOROIDAL TRANSFORMERS
Conservatively rated, in a low-profile design, these low-impedance
toroidal power supplies—one per amplifier channel—make no sacrifices
when it comes to delivering a continuous supply of pure, clean low-
noise power.
They are shaped to minimize hum while a sequence-controlled soft turn-
on significantly reduces power line transients and in-rush current during
start up, thereby preventing accidental tripping of the circuit breakers.
FOURTEEN BIPOLAR OUTPUT DEVICES PER CHANNEL
An amplifier’s ultimate performance is directly related to the number
of high-quality, high-current devices used in the output stage. The
greater the number of devices employed per channel, the greater the
available power to deliver the crescendos in music and the thunder and
explosions in movies. And the greater the amount of current that can be
held in reserve.
While some manufacturers cut corners to save costs in this area, our
designers incorporated fourteen bipolar output devices per channel. This
results in tremendous current held in reserve.
INDEPENDENT POWER SUPPLIES
P Series amplifiers are the cleanest, quietest amplifiers in the industry.
Each amplifier channel features two separate and autonomous power
supplies fed from separate transformer windings. The amplifiers are thus
able to deliver stable, continuous power at maximum output, regardless
of the number of channels being driven.
While some amplifiers tend to oscillate when driving lower impedance
loads, the P2 and P5 remain perfectly stable under all conditions. If
pushed into clipping, the proprietary anti-saturation tracking power
supply circuit takes over to ensure a seamless recovery.
Since the use of a regulated power supply in the driver
stage removes noise emitted by the bridge rectifier (often
heard as an audible hum at 120 Hz and its harmonics),
the P2 and P5 achieve an utterly silent noise floor.
HAND-DESIGNED CIRCUIT BOARDS
Our two-layer military-spec (FR-4-rated) glass-epoxy circuit boards
feature plated through-holes and 2-ounce copper traces, promoting
excellent conductivity.
Extensive use of power and groundplanes ensures exceptionally low
noise and increased protection from stray electromagnetic energy—
internally as well as externally from other devices.
ANTHEM® STATEMENT P2 | P5 multichannel amplifiers
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