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NAD 3100
The NAD 3100 (Monitor Series) is a vintage integrated amplifier from the early 1990s, featuring 60 watts per channel into 8 ohms (\(20\text{Hz}-20\text{kHz}\)) with high dynamic power reserve (up to 330W into 2 ohms). It is known for its "Power Envelope" technology, MM/MC phono input, and pre-out/main-in capability.Power Output and PerformanceContinuous Power: \(60\text{W}\) RMS per channel into \(8\Omega\).Dynamic Power (PE): \(200\text{W} (8\Omega), 250\text{W} (4\Omega), 330\text{W} (2\Omega)\).THD: \(0.03\%\) (rated power).Damping Factor: \(>100\) (\(8\Omega\), \(50\text{Hz}\)).Slew Rate: \(> 35\text{V} / \mu\text{sec}\).Inputs and Phono StagePhono: Switchable MM (Moving Magnet) and MC (Moving Coil).Input Impedance: \(47\text{k}\Omega / 100\text{pF}\) (MM), \(100\Omega / 1000\text{pF}\) (MC).Sensitivity: \(0.18\text{mV}\) (MC), \(2.5\text{mV}\) (MM), \(200\text{mV}\) (line).Features and ConnectivityControls: Bass/Treble/Balance tone controls (defeatable), Loudness, Soft Clipping.Input/Output: Tape 1 (In/Out), Tape 2 (In/Out), Tuner, Video, Pre Out/Main In.Speakers: A + B speaker switching.Physical SpecificationsDimensions: \(435 \times 106 \times 385\text{mm}\) (approx. \(17.1 \times 4.2 \times 15.2\text{ inches}\)).