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cycle the amplifier with the ~ac mains relay switch on the rear panel. In addition, the AC input to each transformer is fused to protect against excessive current conditions such as driving shorted outputs. In-rush limiting prevents premature aging of power supply components during power-up, and switches to off-line once the power supply has been charged. Finally, the Nº33H incorporates a controlled clipping circuit that prevents output devices from saturating. The harsh high-frequency harmonics generated by hard-clipped output devices are avoided by the wave-shaping action of this controlled clip circuitry.
