Seven Channel Power Amplifier: The NAD M27 seven channel power amplifier can
effortlessly create a truly realistic surround sound experience when mated to
NAD's M17 Surround Sound Preamp Processor (745M17,
sold separately). Rated at 180W continuous power per channel, the M27 will
provide over 300W dynamic power per channel with all channels driven.
The M27 will pump out all the power you need into difficult
loads to follow the complex dynamic peaks in your movies and music. The M27 has
power reserves to meet the demands of the latest high-resolution digital
soundtracks. Thanks to the advanced nCore amplifier technology, all this monster
power comes at a lot less cost than traditional technology and delivers more
power and performance.
Hybrid Digital Amplification: The NAD M27 seven channel
power amplifier is using the latest nCore amplifier technology licensed from
Hypex which offers distortion below measurement, ultra-high damping factor, and
unconditional stability with any speaker. The result is tight, detailed sound
with amazing control and transparency. With nCore, Hypex has refined their
amplifier concept to new levels of perfection by improving the modulator for
more accurate feedback subtraction and PWM generation. The all-discrete driver
and output stage have also been improved for lower open-loop THD as well as
lower idling losses, normally conflicting requirements with conventional IC
driver circuitry. An added control loop incorporating an integrator with
adaptive clipping enables 20dB more feedback to be used across the audio band
because of its extremely low-phase shift resulting in a dramatic reduction in
distortion across the audio band. This is added to nCore's already amazing
characteristics of load invariance and high current capability, common
characteristics of great-sounding amplifiers.
NAD PowerDrive: NAD's PowerDrive circuit delivers very
high dynamic power and low impedance drive to accurately control loudspeakers,
resulting in remarkably musical and relaxed sound. PowerDrive gives the M27
maximum power no matter what you throw at it; and without the energy drain.
technology measures each channel's dynamic impedance individually and computes
the optimum power supply voltage required to drive the output stage for maximum
power and efficiency. Control for
PowerDrive is derived by sensing the average output power, applying a time
constant, and then cleanly hard clipping the signal thus limiting it to the
rated continuous clipping power over a sustained loading.
SoftClipping: NAD's exclusive SoftClipping feature is
also included to protect your speakers (and ears) from damaging clipping
distortion. NAD's Soft Clipping circuit gently limits the output of
the M25 to minimize audible distortion when the amplifier is over-driven. Each
channel is individually protected and has its own front panel LED, which turns
red when the circuit engages. While Soft Clipping can be left on at all times to
reduce the likelihood of audible distortion from excessive volume settings, you
can also turn the circuit off for critical listening if you prefer.
Balanced & Unbalanced Connectivity: The M27 can accept
both balanced (XLR) and single-ended (RCA) inputs. It also features
high-quality, gold-plated, color-coded binding posts for speaker connection.
These binding posts will accept bare wire (16-10AWG), pin-connectors, and banana
plugs (single only).
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