PS Audio Stellar S300 Stereo Amplifier


Colour: Silver
Price:
$2,895

Description

  • STEREO POWER AMPLIFIER
  • DUAL MONO WITH SEPARATE POWER SUPPLIES
  • POWERFUL MOSFET OUTPUT STAGE
  • RCA SINGLE-ENDED INPUT
  • XLR "TRUE" BALANCED INPUT
  • 140 WATTS PER CHANNEL 8Ω
  • 300 WATTS PER CHANNEL 4Ω
  • 2Ω STABLE
  • VERY LITTLE HEAT PRODUCTION
  • < 0.1% THD 20Hz - 20kHz AT RATED POWER
  • DAMPING FACTOR > 550
  • FRONT PANEL STANDBY BUTTON
  • ZERO-LOSS INPUT
  • DUAL, COPPER, PLATED, OUTPUT BINDING POSTS
  • 13 LBS.
  • INPUT 12 VOLT TRIGGER

Unit Weight: 13 lbs [5.9 kg]
Unit Dimensions: 17”W x 3”H x 12”D (13″D w/connectors)
Shipping Weight: 16.5 lbs [7.5 kg]
Shipping Dimensions: 22”W x 8”H x 17”D

Voltage Options

  • (Factory set only) Japan 100V
  • North America 120V
  • Europe/Asia/Australia/New Zealand 230V

Mains Power Inputs: IEC C14

Idle Power Consumption: 13W

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: Copper base nickel plated binding posts (2 pair per channel)
DC Trigger Input: 3.5mm 5-15VDC
Warranty: 3 years parts and labour

Signal
Gain: 30.5dB +/-0.5dB
Sensitivity for rated output power: 1.01V
Noise: 1kHz@300 Watts < -100dB
Input impedance: Unbalanced 50KΩ, Balanced 100KΩ

Output Impedance: 50Hz, 2.8VRMS <0.007Ω

Damping factor

  • 50Hz. 2.8VRMS
  • 8Ω >1100
  • 4Ω >550

Frequency Response 

  • 2.8VRMS into 4Ω
  • 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%

Output Power
Both channels driven 120vac mains, 1kHz, 1% THD
8Ω: 140W minimum
4Ω: 300W minimum
2Ω: Stable for musical transients

Tone Audio, Rob Johnson

The result of all these strengths gives the S300 a beautiful voice which mates well with the variety of upstream gear we had on hand for testing. It holds its own against components that exceed its price tag. This PS Audio  component deserves a spot on a short list of bargain amps that perform beyond what one should expect for the money.

After a few weeks with the S300 in my reference system, I must admit I am smitten with it. I applaud PS Audio’s new approach to circuit design bringing together the benefits of both Class A and Class D technology. READ MORE


C/NET Steve Guttenberg

They sounded so good together I couldn't bring myself to try too many other speakers. The sound was rich with resolution to die for. READ MORE


HIFI Pig David Blumenstein

The Stellar DAC/Pre-Amp/Power Amplifier filled my listening room with 3D sound, and they matched well with each of my speakers; the floor standing Audio Physic Tempos, the stand mounted Platinum Audio ST 1’s and the low-to-the ground Mission 727s. I was surprised how different they made each sound and I spent a great deal of time swapping out my Parasound Halo 2.1 integrated amplifier, Bel Canto s300 integrated amplifier to make sure I wasn’t fooling myself. And, yes, I was hearing something new and more evocative from my usual suspects. READ MORE


10 Audio Jerry Seigel

Folks, this is the future. We have heard vast improvements of Class D amplifiers during the last 10 years, and we are at or near the point where the technology is largely irrelevant to the final sound. The sound of audio components is more dependent on the implementation than on the underlying technology. The PS Audio Stellar S300 gets so close to perfection that the low purchase price is an out-of-this-world value. The PS Audio Stellar S300 adds nothing objectionable while delivering wonderful musical performances. READ MORE

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