NAD 2400 Manuel utilisateur

2400

Stereo Power Amplifier

Date of manufacture : ?

Please note that this document contains the text from the original product brochure, and some technical statements may now be out of date

The 2400 has the same features and useful flexibility as the 2100 but produces significantly higher levels

of real speaker-driving power. With continuous test tones its output is conservatively rated at IOU watts

per channel, while its Power Envelope circuitry produces 370 to 440 watts channel of tone-burst power

for music.

The high-current output stage of the 2400 delivers peak currents up to 40 amperes for precise control

of voice-coil motion with speaker impedances as low as 2 ohms. In bridged mono operation the 2400

produces over 2OO watts of steady-state power and over 800 watts of dynamic tone-burst power. To

enable the user to make the fullest use of the available power, a warning light illuminates if the

amplifier is over-driven into distortion or exhibits any deviation from linearity. A high-precision circuit

continually compares the input and output signals and flashes the LED if a potentially audible difference

is detected.

Each stage of the amplifier (input, driver, and output) is individually decoupled from the power supply to

prevent the dynamic supply-modulation distortion that causes some amplifiers to sound “veiled” and

muddy.

POWER AMP SECTION

Continuous output power into 8Ω* 100W (20dBW)

Rated distortion (THD 20Hz - 20kHz) 0.03%

Clipping power (maximum continuous power per channel) 130W

IHF Dynamic headroom at 8Ω+5.7dB

IHF dynamic power (maximum short term power per channel) 8Ω370W (25.7dBW)

4Ω400W (26dBW)

2Ω440W (26.4dBW)

Damping factor (ref. 8Ω, 50Hz) >100

Input impedance 20kΩ/ 600pF

Input sensitivity (for rated power into 8Ω)1V

Frequency response 3Hz - 100kHz / +0, -3dBdB

Signal/noise ratio ref. 1W 98dB

ref. rated power 118dB

THD (20Hz - 20kHz) <0.03%

Bridged Mode

Continuous output power into 8Ω* 200W (23dBW)

IHF Dynamic headroom at 8Ω+6dB

IHF dynamic power (maximum short term power per channel) 8Ω800W (29dBW)

4Ω880W (29.4dBW)

PHYSICAL SPECIFICATIONS

Dimensions (W x H x D) 435 x 127 x 385mm

Net weight 10kg

Shipping weight 12kg

Power consumption (120 ~ 240V, 50/60Hz) 390VA

* Minimum power per chnnel, 20Hz - 20kHz, both channels driven with no more than rated distiortion.

Dimensions are of unit’s cabinet without attached feet; add up to 18mm for total height.

Dimension depth excludes terminals, sockets, controls and buttons.

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