NAD 3130, Forsterker

NAD forsterker modell 3130

Forsterkeren er i meget bra stand og kosmetisk pen.

Review: NAD 3130 Amplifier

Category: Amplifiers

Following on the heels of their high successful 3020 amplifiers, NAD released the next generation of giant killers with the 31 series and this review deals with the 3130 integrated amplifier.

Using the same basic formula of the 3020 series, NAD added a few very nice touches and a wee bit more power to boot. Finished in the same type of cosmetics as the originals. Cosmetics were never a high point of the NAD line and that continues to this day. With NAD the focus is on performance not cosmetics and to this end they have been very successful.

It's untimidating to look at by audiophile standards. NAD's standard grey casework offering a very utliitarian appearance. Nothing fancy, yet in its own way a sense of quiet elegance. I have a strong suspicion that the 3130 is constructed better than anything which NAD currently builds within this respective price range which was originally $229.95 in 1985 through 1987 (469.95 taking into account inflation through 2010).

NAD amplifiers are noted for transparent musicality, solid speaker-driving power, and economical no-frills design. The NAD 3130 stereo amplifier, while rated at a modest 30 watts per channel, has a high current output stage that delivers short-term bursts of 60 to 80 Wlch, not only at 8 ohms but also with the complex impedances of real loudspeakers.

NAD amplifiers are also exceptionally free of noise and distortion at low volume levels. The 3130's phono and tone control circuits are quieter than those in many separate preamplifiers. Every detail of the recorded soundstage is transparently reproduced, with no veil of low-level hiss.

Obligatory Specifications:

PRE·AMP SECTION:

Phono input:

Input impedance (R and C): 47kohms/100pF

Input sensitivity: MM1 kHz: 2.5mVref. 0.5V

MC 1 kHz: MC 200 mV

Signal To Noise Ratio: MM 76dB ref. 5mV

MC 76dB ref. 0.5mV

RIAA Response Accuracy: ±0.5dB

Line level inputs:

Input impedance: (R and 0) 15kohms/100pF

Input sensitivity (ref. lW): 150mV

Maximum input signal: >10V

Signal/Noise ratio (A-weighled ref lW):85dB

Frequency Response: 20Hz - 20kHz / ±0.5dB

Line level outputs:

Output impedance:Preamp 800 ohms

Tape Source Z + 1kHz Ohms

Maximum Ouput Level: Preamp 8V

Tone controls:

Treble: ±7dB at 10kHz

Bass: ±7dB at 100Hz

Bass EQ: +3dB at 70Hz

+6dB at 40Hz

-3dB at 12Hz - 12dB/octave

POWER AMP SECTION:

Continuous output power into 8 ohms: 30W(15dBW)

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

Clipping power (maximum continous power per channel): 45W

IHF Dynamic headroom at 8 ohms: +3dB

IHF dynamic power (maximum short term term power per channel): 8 ohms 60W

4 Ohms 70W

2 Ohms 85W

Input impedance: 22k Ohms

Input sensitivity (for rated power into 8ohm): 850mV

Minimum power 30 WRMS per channel, 20Hz - 20kHz, both channels driven with no more than rated distortion.