The first product, the Aleph 0, shipped in 1992.  It was a mono-block design rated at 70 watts into 8 ohms, and was unique in using three gain stages of power Mosfets including a push-pull output stage biased by a big constant current source.  The amplifier operated as single-ended Class A up to its 70 watt rating and in push pull Class A at higher wattage. The amplifier was highly acclaimed, and was called the “Amplifier of the Decade” in Stereophile magazine.

At this time, Nelson hired his next-door neighbor, Elena Tong, to help with producing the amplifiers, and she manages much of the company to this day.

A stereo version called the Aleph 0s followed after, along with a preamp called the Aleph P.  A larger version of the Aleph 0 called the Aleph 1 shipped the following year, and was a mono-block rated at 150 watts.