Naim NAP 200 Solid State Amplifier, Fully Tested

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One of my absolute favorite audio brands. UK made. Tons of upgrade paths with external power supplies available for the consummate tweaker.

Incredible build quality and attention to detail resulting in a wonderful engaging and detailed sound. Best used with other Naim gear but will work with the rest.

Fully bench tested and performing to factory specs.

Please see our last photo or the manual for full specifications:

Naim NAP 200 Solid State Amplifier - Full Reference Manual

More from Naim:
First designed by Naim Audio founder Julian Vereker in 1971, the NAP 200 has Naim Audio musicality written into its DNA. As our first production amplifier, no single product encapsulates our philosophy better. Its design is simple and uncompromising, with a single-minded focus on one thing: creating an enduring musical connection with the listener.

More recently the NAP 200 has benefitted from the years of research that went into the NAP 500 amplifier. Many of the developments from the 500 Series project have helped to revitalise its electronic design and componentry bringing significant and hard-earned gains to performance. Beneath this new technology however, it retains the values which helped to make it an icon: simplicity, focus and sheer musicality.

New Technology
The NAP 200 has been revitalised and reintroduced in 2015 with the addition of a Naim Audio DR (Discrete Regulator) module to power its partnered Naim Audio preamplifier. This comes alongside small improvements to some internal componentry and layout that combine to lift its musical performance even further than the original.

Standout Features
• 70W per channel output into 8 Ohms
• Large custom-designed transformer providing 300VA of transient power
• Internal power supply to allow direct connection of a NAC 152 XS, NAC 202 or NAC 282preamplifier

Technology & Craft
Like the flagship NAP 500, the NAP 200 uses a new circuit design with improved earthing arrangements built on a very high quality, anti-resonance main audio circuit board. Anti-vibration, resonance-controlling feet serve to protect the sensitive internal components from microphonic vibration and unwanted external interference.

A new, top-quality 430VA toroidal transformer provides more than 300VA of transient power. Separate windings provide dedicated left and right channel rectified power supplies with two smoothing capacitors per channel. The NAP 200 also has a separate winding providing a preamplifier power supply. This enables it to be used in a two-box amplifier configuration with a Naim Audio preamplifier such as the NAC 202. The Naim Audio NAP 200 is stable into any load and can drive a 2-ohm load for long periods of time.

Naim NAP 200 Solid State Amplifier - Full Reference Manual

The SkyFi Testing Process for Solid State Amplifiers:

We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage.

We then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the amplifier to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The amplifier then remains powered on to "burn in" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.

Final testing involves pushing actual music thorough the amplifier. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some amplifiers will then move into our listening room where they are tested with our in-house reference speakers of choice.

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