NAD Monitor Series Power Amplifier 2100 POWER Envelope - Works Great!
- Condition: Used
- Price: 209.38 EUR
- Status: sold
- Item number: 316162441121
- Seller: glbe_7459 (239|99.0%)
- Seller information: non commercial
- Item location: Elizabeth, Colorado
- Ships to: US
- Shipping: 30,0 EUR
- on EBAY
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Description
This is a 1988-vintage NAD Monitor Series Power Amplifier 2100 POWER Envelope that is completely tested and is fully functional. It is very clean, inside and out. The original 1988 MSRP was $398, which is the equivalent of $1,055 in 2025. This was a middle-of-the-line NAD amplifier in the 1988 line. It was very conservatively rated at 50 WPC into 8 ohms at .03% THD, but it can put out 150 WPC into 8 ohms in bridged mono mode. NAD stands for New Acoustic Dimension, and the company was founded in 1972. This is how NAD described this model in the original sales brochure: “We are a leading producer of affordable amplifiers that produce the full measure of dynamic headroom required by digital recordings. The best buy 2100 Power Amp is remarkable even by NADs standards. While its rated power for continuous test tones is 50 watts channel, its effective power output for music is an impressive 200 to 330 watts per channel (depending on speaker impedance). Thanks to NADs 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 be heard to be 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 preamps output, balance levels in bi-amped 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 amplifiers 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.” Dimensions: 17.1” W, 4.25” H, 15” D, 21lbs. This NAD 2100 is serial #T21013305X. The inspection date on this unit is July 12, 1991, so it was a late production unit. I am passionate about vintage amplifiers. I take the time to test every single function of the amp by connecting it to a good preamplifier and connecting speakers. Doing this lets me listen to how the amplifier actually sounds. I check every single switch, control and button to confirm that they work as intended. After the initial assessment, I thoroughly clean the outside and inside of the tuner and clean every potentiometer and switch with CRC QD Electronic cleaner. I also check and adjust the amplifier idle current to the proper value from the Service Manual. This particular NAD 2100 is in very good shape cosmetically, as you can see from the photos. Functionally, all of the LEDs, displays and buttons work as designed. Most importantly, it sounds great. It is missing the purely cosmetic green outer portion of the power button. It is hard to believe that it is roughly 34 years old! The amplifier will be wrapped with plastic cling wrap and bubble wrap, before being placed into a sturdy box with appropriate packing material. I dont overcharge for shipping. This is sold as is due to being a vintage electronic item. Please look at the photos and ask any questions before buying. Thanks for looking!
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