What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59

NAD 2100

The “best buy” 2100 Power Amp is remarkable even by NAD’s standards.
While its rated power for continuous test tones is 50 watts channel, it’s effective power output for music is an impressive 200 to 330 watts per channel (depending on speaker impedance). Thanks to NAD’s unique Power Envelope circuitry, this high level of tone-burst power is available not just for brief transients but for the full duration of complex chords and musical climaxes.
Yet the 2100 has the same modest size and low price as other “50 watt” amplifiers with 40,000 μ F of power-supply capacitance, the 2100 delivers peak currents as high as 30 amperes to cope with the most complex and reactive loudspeaker impedances. In addition to power and control, the 2100 has delicacy; with a signal-to-noise ratio of 117 dB, it faithfully reproduces every subtle strand of low-level musical detail and back-ground ambience. With its high-speed output stage and ultra-low distortion, the clarity of its sound must he heard to he appreciated.

You can use either wide-hand inputs or filtered inputs 112Hz to 80kHz that strip off interference, prevent intermodulation distortion, and protect your speakers from unwanted subsonic signals The filtered inputs also have input- level controls that match your preamp’s output, balance levels in biamped or surround systems and allow you to bypass your preamp and connect a line level source directly to the power amp. Heavy-duty binding-post terminals provide secure low-resistance connections for all types of speaker wire.
If you need more power, a rear-panel switch combines the amplifier’s two channels to form a mono amp rated at 100 watts continuous and 500 watts tone-burst output. The efficiency and compact size of the 2100 also make it a perfect choice for hi-amplifying speakers. (Suggestion for a high-definition audiophile system: instead of buying exotic and expensive speaker cables to stretch across the room, install a bridged or bi-amped 2100 directly behind each speaker, connected with ultra-short wires.

Power Amp Section
Continuous Output Power (into 8 Ω) : 60 W (17 dBW)
Rated Distortion (THD 20Hz - 20kHz):  0,03%
Clipping Power (maximum continuous power per channel):  70 W
IHF Dynamic Headroom (at 8 Ω):  +6dB
IHF Dynamic Power (maximum short term power per channel)
8 Ω :  200 W (23 dBW)
4 Ω :  250 W (24 dBW)
2 Ω :  330 W (25 dBW)
Damping Factor (ref. 8 Ω, 50 Hz):  better than 100
Input Impedance:  10 kΩ  / 600 pF
Input Sensitivity (for rated power into 8 Ω):  0.85V
Frequency Response:  3 Hz - 100 kHz  +0, -3 dB
Signal-to-Noise Ratio
ref. 1W :  100 dB
ref. rated power :  117 dB
Total Harmonic Distortion  (20Hz - 20kHz): less than 0,03%
Bridged Mode
Continuous Output Power (into 8 Ω) :  100 W (20 dBW)
IHF Dynamic Headroom (at 8 Ω) :  +7 dB
IHF Dynamic Power (maximum short term power per channel)
8 Ω :  500 W (27 dBW)
4 Ω :  660 W (28 dBW)
General Section
Power Supply/Consumption:  120  ~ 240 V, 50/60Hz / 330 VA
Dimensions (W x H x D):  435 x 106 x 385 mm
Net :   9,5 kg
Shipping :  10,9 kg

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