PS AUDIO Stellar S300 Stereo Amplifier - Silver

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SKU#: PSAUDIO-85183
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PS AUDIO Stellar S300 Stereo Amplifier - Silver

The Stellar S300 stereo power amplifier is a dual mono power amplifier capable of effortlessly driving demanding loudspeaker loads to concert levels. The perfect choice for just about any loudspeaker, the S300 slips into any system, surprising and delighting even the most discriminating Audiophile. The S300 opens up your musical library in ways you might not have thought possible, revealing nuance and detail covered up by traditional amplifiers. One listen to the S300 and you’ll know you made the right choice. Effortless, rich, spacious—never a hint of glare or aggression—a joy to hear. An amplifier worthy of the PS Audio name.
Rated at 140 Watts per channel into 8Ω and 300 Watts per channel into 4Ω, the S300 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.

Stellar’s design imperative was to produce a truly musical sounding power amplifier that proudly competed with any amplifier under $5,000. Its designer, PS Audio engineer Darren Myers, took the challenge and set to work on a new concept—a hybrid that would combine the best of today’s technology with time-honored techniques leveraging PS Audio’s forty plus years of experience.

The results are extraordinarily musical. Even from the earliest prototype we knew the Stellar power amplifier series was going to be something special. Stellar amplifiers never draw attention to themselves, a rare quality in amplifiers of any price. After hundreds of hours of tuning, voicing, and perfectionist tweaking, we were confident the ends justified the means.

Unit of Measure: Each

Specifications:

Unit Weight 13 lbs [5.9 kg]
Unit Dimensions 17” x 3” x 12” Chassis only. 13" deep including connectors.
Shipping Weight 16.5 lbs [7.5 kg]
Shipping Dimensions 22”x 8” x 17”
Color Options Black
Silver
Voltage Options
Factory set only Japan 100V
North America 120V
Europe/Asia/Australia/New Zealand 230V
Mains Power Inputs IEC C14
Accessories Included US (NEMA 5-15P) (all versions)
Schuko (CEE7/7) (230V version)
UK (BS 1363) (230V version)
Audio Inputs RCA (Unbalanced)
XLR (Balanced)
Speaker Outputs S300 Copper base nickel plated binding posts (2 pair per channel)
Speaker Outputs M700 Copper base nickel plated binding posts (2 pair)
Other DC Trigger Input
3.5mm 5-15VDC
Warranty 3 years parts and labor
Signal

Gain 30.5dB +/-0.5dB
Sensitivity for rated output power 1.01V
Noise 1kHz@300 Watts <-100dB
Input impedance S300 Unbalanced 50KΩ
Balanced 100KΩ
Input impedance M700 Unbalanced 50KΩ
Balanced 100KΩ
Output Impedance 50Hz, 2.8VRMS <0.007Ω
Damping factor 50Hz. 2.8VRMS
8Ω >1100
4Ω >550
Frequency Response @2.8VRMS
10Hz – 20KHz +/- 0.5dB
10Hz – 50KHz +0.1/-3.0dB
THD&IM

1KHz, 1W/4Ω <0.02%
10-20KHz, 1W/4Ω <0.02%
10-50KHz, 1W/4Ω < 0.05% (90kHz BW)
1KHz, 37.5W/4Ω < 0.01%
S300 Stereo Amplifier

Output Power

Both channels driven 120vac mains, 1kHz, 1% THD
8Ω 140W minimum
4Ω 300W minimum
2Ω Stable for musical transients
M700 Mono Amplifier

Output Power

120vac mains, 1kHz, 1% THD
8Ω 350W minimum
4Ω 700W minimum
2Ω Stable for musical transients

Full 3 Year Warranty
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