If you read high-end stereo magazines or websites, you know the Sanders Magtech power amp is the hottest power amp on the market. Why? Because Roger Sanders has figured out a new and revolutionary to emplement a power supply, long the source of noise and distortion in amps. The result is the cleanest, most neutral power amp on the planet. It is capable of driving ANY speaker, even electrostats, at ANY impedance at high power and minimal distortion.
The Magtech amplifier is the only amplifier on today's market that features a linear voltage regulator for which Sanders has a patent pending. The result is a compact, yet extremely powerful amplifier that is ideally suited to driving the most difficult magnetic speakers.
In one review, the reviewer stated, "The power supply then underpins an impressive spec sheet. The Magtech will deliver 63.4 volts RMS to the speakers, which translates into 502 watts into an 8 ohm load. Further down the impedance scale the Magtech delivers 900 watts into a 4 ohm load and about 1600 watts into a 2 ohm load. What makes these spec’s all the more impressive is that the power ratings are for both channels driven at any audio frequency (20 Hz to 20 KHz) and with a THD level cited in the manual of just 0.01% at any power level below clipping. At 1 watt ("small signal"), the specification less honest manufacturers use to rate distortion, the THD is no more than 0.004% and typically 0.0024%. As the reader might imagine the output stage needed to drive these sorts of power levels is nothing short of colossal, comprising of OM NJL4281 and NJL4302 transistors in complementary pairs. Note that these are the new "Thermal Trak" type of transistor that has a temperature sensor built into the transistor junction. This makes it possible to instantaneously correct for the huge swings in bias current due to the problem of instantaneous junction heating caused by sudden, large, current flows. As a result, the amplifier is able to maintain a constant bias current at all times -- something that is not possible in conventional transistor output stages.
Robert Green in TAS said, "The sound from my Harbeth M40s (original version) sounded precise, controlled, defined, dynamic, perfectly balanced, and extremely clean with unusually silent background and extreme solidity even in demanding passages. Thundering piano music, for example, was as solid as a rock. The Sanders Magtech amp has power to spare, 500 watts per channel into 8 ohms, 900 into 4. But it sounds as if it had infinite power into anything with total stability. The Sanders Magtech joins (really only, in my experience) the Lightstar family and the DALI Gravity in extreme ability to handle anything and sound perfect while doing it. An instant classic in my book."
This unit (I am the original owner) is in near perfect shape and perfect in operation. There's some dust in-between the heat sinks, but that's about it.
At 60 pounds, it's built superbly and it generates almost NO heat because of its unique design.
It also is fully balanced via XLR.
There are several reviews and many comments here, of course.
Shipping in original box with original manual.
This is the current model that retails for $5,000.
It has approximately 250 hours of perfect operation.
Asking $3,900+ shipping
Currently in zip 33907
