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continuously for hours on end. And dynamic power, the power
that more closely represents the true nature of musical signals, is
nothing short of sensational.
Sophisticated circuitry
The T955 is comprised if 5 individual Monobloc amplifier
channels. Based on NADs proven all discrete circuit topology as
used in the award winning C352 and C372 stereo amplifiers, this
design offers very low distortion combined with extremely high
current capability. Active current sources and common base
current followers in the power amp section combine to improve
supply rejection to unprecedented levels, well beyond the audible
frequency range.
This has the effect of reducing dynamic intermodulation distortion
between music signal components in different frequency ranges,
and between these signals and supply ripple and distortion
components. In measurement terms static and dynamic IM
distortion are reduced by between 10dB to 20dB. (to between
-90dB and - 100dB.) compared to conventional designs.
In audible terms this improves definition, purity and resolution,
hence imaging. And yes, imaging is very important in an amplifier
designed for surround sound listening. Sure, any surround
sound component will surround you with sound, but the best
surround sound components have the effect of transforming your
listening room into the sound stage of the musical or cinematic
performance!
NADs PowerDrive circuitry is a big part of this performance story.
By measuring each channels dynamic impedance individually and
computing the optimum power supply voltage required to drive
the output stage for maximum power and efficiency. PowerDrive
permits high dynamic power and low impedance drive capability,
while maintaining ultra low (<0.03%) levels of distortion.
Each channel has individual over current, DC, infrasonic and
ultrasonic overload sensing and protection for complete reliability
under even the most severe operating conditions.
Custom designed heat sinks keep things cool under the most
severe operating conditions without the requirement of forced air
cooling and its potential noise. A massive Holmgren toroidal power
transformer insures excellent voltage regulation under the most
demanding conditions, and offers high efficiency and a low stray
magnetic field to help keep distortion at vanishingly low levels.
© NAD T955
Serial No./No. De Series
+12V TRIGGER IN
AUTO TRIGGER
ON ON OFF
OFF SOFT
CLIPPING
INPUT
SPEAKER
INPUT
SPEAKER
INPUT
SPEAKER
INPUT
SPEAKER
INPUT
SPEAKER
CHANNEL 5 FRONT R CHANNEL 5 FRONT R CHANNEL 4 CHANNEL 3 CHANNEL 2 CHANNEL 4
CHANNEL 3
CHANNEL 2 SURR R
CENTER
SURR L SURR R
CENTER SURR L CHANNEL 1 CHANNEL 1 FRONT L FRONT L
SPECIFICATIONSContinuous Power, 20Hz-20kHz, all channels
driven simultaneously at 4/8-
Rated Distortion (THD 20Hz-20kHz)
Peak Undistorted Current
IHF dynamic headroom at 8-
IHF dynamic power at 8-
IHF dynamic power at 4-
IHF dynamic power at 2-
Damping Factor
Input Impedance/Capacitance
Input Sensitivity
5 x 100W (20dBW)
0.03%
>80 Amps @0.1 Ohm
+1.5dB
150W (21.8dBW)
200W (23dBW)
260W (24.1dBW)
8 Ohms >100 20Hz - 20kHz
20,000 Ohms/380pf
1.0V
Voltage Gain
Frequency Response
Signal/Noise Ratio
Dimensions (W x H x D)*
Net Weight
Shipping Weight
29.0dB
20Hz - 20kHz +0, -0.2dB
2Hz - 100kHz -3dB
1 watt 8 Ohms >100db IHFA
100 watts > 130db IHFA
17 1/8 x 6 1/8 x 15 1/8
(435 x 155 x 365mm)
45 lbs (20kg)
49 lbs (22kg)
* Dimensions are of units cabinets without feet attached; add up to 18mm for total height. Dimension depth excludes terminals, sockets, controls and buttons.
NAD Electronics International reserves the right to change specifi
cations or features without notice. NAD is a registered trademark of NAD ElectronicsInternational. All r� permission of NAD Electronics International. © 07/06 NAD Electronics International.
www.NADelectronics.com
