Nord Three 1ET400A MB MKll Mono Blocks

Model

1ET400A MKll

Brand

NordAcoutics

The Nord Three MB MKII is our upgraded Purifi EIGENTAKT - 1ET400A Mono Block amplifier using 1 x power supply. Consisting of amp module, PSU, Input buffer. The only difference in the MKII version is the upgraded Nord REV D input buffers with Sparkos discrete Voltage regulators and choice of discrete Sparkos 2590 or Sonic Imagery 990 Op Amps. These run in full class A and add greater tonal density for a more tonally rich sound. while improving resolution and soundstage. They elevate our MKII amp to a truly Hi End audio experience. FULL REV D AND OP AMP SOUND DIFFERENCES HERE All buffers have 4 levels of On-Board Switchable Gain. Upgraded to SE case for a more solid, beautifully finished and classy looking case. Made in Japan the SE case matches the sonic ability of the amp and also comes with a switchable ON OFF DIM front LED. Only available for Mono Blocks and Stereo amplifiers. Moving inside the amplifier we build with a combination of quality and experience of laying out amplifiers in order to achieve ultimate performance. We balance this with ease of build in order to maintain lower prices without compromising quality. Vulnerable wire connections are double shrink sleeved to ensure long term reliability. We have recently moved to combine inputs directly to the buffer board eliminating long input signal paths. Buffer boards are soldered using WBT silver solder. All resistors are either 1% or 0.1% tolerance where needed in the audio feedback path. Signal capacitors are ultra quiet Wima Polypropylene whilst power caps are long life low ESR Panasonic FM range. Binding posts are connected to buffer board with as short a length of OFC Silver plated Teflon dielectric 14AWG wire. Neotech OCC option. The connections to the binding posts are crimped and soldered to ensure ultimate contact. Our SMPS have virtually zero noise emissions, an example of how this is achieved is attention to detail – each PSU output transistor is individually wrapped in Copper foil shielding. We also pay a great deal of attention to thermal testing when designing a new amp to ensure they run as cool as possible. Heat is the enemy and will reduce long term reliability. All our amplifiers perform and offer far better value than any product available from dealers. Even our entry level MP range offer a base line of superb dynamics, amazing soundstage, clarity and sheer addictive musicality. Gone are any hints of the older Class D harsh and thin sound. They sound like the top notch Class A A/B amplifiers. Each amp is built by one individual who is responsible for its internal build quality. Frequency Response: 0 – 50k Hz +0/-3dB / Frequency Response: 0 – 50k Hz +0/-3dB • Low Distortion: THD+N 100W – – 0.00017 % 20-20kHzHz / Low Distortion: THD+N 100W – – 0.00005 % 20Hz-20kHz • SNR 131dB / 137dB • High Input Impedance 51K • On-Board Switchable Gain 12.8-22.2-27.4-30.6 dB • Ultra High Damping Factor • High 25A Current Output Capable of driving 2ohm for the Most Demanding of Speakers./25A • Idle Loses output Stage ~1.7W / Idle Loses output Stage 1.6W • Efficiency >94% / 96% 450W / 510W 2ohm 425W / 450W 4ohm 227W / 230W 8ohm • Frequency Response: 20 – 20kHz +/-.01dB I only accept PayPal friends & family or Zelle. Shipping at buyers' expense.