From the deepest bass to the warmest, sweetest highs, the Stellar S300 makes any loudspeaker sing and is PS Audio's most affordable stereo power amplifier ever.

Breathe new life into your loudspeakers with the Stellar S300, a full-sized, affordable stereo power amplifier that honors the music and controls your loudspeakers better than you ever imagined possible. The S300 combines the slam, linearity, and toe-tapping pacing of a Class D output stage with the warmth, grace, and rich inner detail of Stellar's Class A Analog Cell. The results are nothing short of groundbreaking. Liberate a wealth of untapped energy trapped in your media library. Plumb music's subterranean depths and finally hear the bass your speakers were capable of. Revel in rich layers of fine, full detail. Marvel at the deep, extraordinary, wall-to-wall soundstage. Effortless. Lush. Stellar.

DESIGN

The Stellar S300 stereo power amplifier is a dual mono power amplifier capable of effortlessly driving demanding loudspeaker loads to concert levels. It combines the best of two worlds: ultra-linear, high-current, Class D technology for the output stage; a discrete, Class A MOSFET-based Analog Cell for the all-important input stage. The S300's rich, warm, and engaging sonic character comes from the Analog Cell. Its powerful, authoritative control over the loudspeaker stems from its high-current, ultra-low impedance Class D output stage.

APPLICATION

The perfect choice for just about any loudspeaker, the S300 slips into any system, surprising and delighting even the most discriminating audiophile. Rated at 140 watts per channel into 8Ω and 300 watts per channel into 4Ω, the S300 has plenty of horsepower for even the most demanding loudspeakers. Your musical library will open up in ways you might not have thought possible, revealing nuance and detail covered up by traditional amplifiers.

TECHNOLOGY OVERVIEW

The S300 is an extraordinarily musical power amplifier rated at 140 Watts per channel into 8Ω and 300 Watts per channel into 4Ω. Designed by PS Audio engineer Darren Myers, who invested hundreds of hours of tuning, voicing, and perfectionist tweaking, the results are extraordinarily musical. Stellar amplifiers never draw attention to themselves, and are one of PS Audio's highest-value offerings in amplification.

THE ANALOG CELL

The connection between preamplifier and power amplifier is critical, for it is at this junction where most essential musical details are easily lost. In the S300, a unique topology called the Analog Cell is employed to preserve the rich details found in music. The Analog Cell is a proprietary, fully differential, zero-feedback, discrete, Class A MOSFET circuit hand-tuned to capture the smallest micro-dynamics without sacrificing macro-dynamics.

OUTPUT STAGE

The Stellar S300 is a dual mono design, meaning each channel has its own separate power supply. Each of the two channels is a complete and independent stage based on a modern Class D ICE module. The S300 provides excellent frequency extremes (extending up to 50kHz), low distortion, high efficiency, a high damping factor, and powerful output into common loudspeaker loads.

FEATURES

• Stereo power amplifier with dual mono architecture and separate power supplies
• Discrete Class A MOSFET Analog Cell zero-loss input stage
• Ultra-linear Class D output stage
• Single-ended RCA inputs and "True" balanced XLR inputs
• Dual copper-plated output binding posts per channel
• 12V trigger input and front panel standby button
• Low heat production and high efficiency

SPECIFICATIONS