Threshold S/300 Stasis power Amplifier - A Nelson Pass Masterpiece

The Threshold S/300 Series II is a vintage solid-state stereo power amplifier designed by Nelson Pass in the 1980s, featuring a famous Stasis non-inverting, feedback-free topology.

Key Features

Power Output: Delivers around 150 watts per channel into 8 ohms (and scaling higher into 4 ohms).

Stasis Design: Uses a unique Stasis output stage that keeps voltage transistors in a constant, unstressed state while handling heavy current delivery.

Build Quality: Features massive dual-mono power supplies, large side-mounted heatsinks, and high capacitance per channel.

Faceplate: The Series II typically bears the "overall feedback free" designation on its front panel.Sound and MaintenanceSound Profile: Known for a warm, detailed, transparent, and smooth presentation with great bass control.

The Threshold S/300 Series II is a heavyweight for sure

Performance and Sound Quality

Sound Signature: Audiophiles praise the amplifier for its warm, smooth, liquid, and glare-free midrange combined with exceptional imaging and soundstaging.

Power and Bass: Operating its first 20 to 30 watts in Class A, it features immense authority and drive capability, producing a deep, rock-solid, and impactful bass response.

Build and Design: Built like a tank weighing 56 lbs, it utilizes Threshold's proprietary Stasis topology to isolate the output stage from voltage fluctuations.

We at HHA have a ton of experience with Threshold components and this S/300II was an immensely popular power amp, if you could get your hands on one. This amp comes to us from the Richard K Collection of Fine Audio; just another homerun piece from this amazing curator of exceptional components. Fully checked & tested front to back by our techs and is ready to play beautifully for it's next owner. Amazing one owner condition and unlike many of Richard's pieces this one was played lovingly with his many speaker choices. Rare and extraordinary amps like this don't come along often, don't sleep on this Nelson Pass Stasis beast.

Come have a listen here in Andover or purchase with confidence here on this website.

Threshold S/300 II Stasis Power Amplifier: $1,899.00 plus shipping and sales tax when applicable