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PS Audio Stellar S300 Stereo Power Amplifier


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Enquiry/price check? Click here SKU: PSASTELS300
Ex VAT: £1,124.17
Enjoy a stellar performance from S300, with Class D output and Myer's Analog Cell designed to preserve the finest musical details and breathe new life into your loudspeakers.

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Warranty length 3 Years
Brand PS Audio

Tech Specs

- 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
- 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
- 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
- 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

Product Description

PS Audio Stellar S300 Stereo Power Amplifier takes a hybrid approach merging zero feedback MOSFET input stage and class D output stage with each channel having its own power supply. The Stellar S300 gives your loudspeakers a complete boost, elevating the bass and revealing the finest micro details in your music.

Breathe New Life Into Your Loudspeakers

PS Audio Stellar S300 drives 140 Watts per channel into 8 ohms and 300 Watts per channel into 4 ohms. It is evident that the Stellar S300 delivers sufficient power and control, and faced with the issue of maintaining stunning musicality and a deep soundstage, it succeeds exceptionally. This power amplifier is capable of providing the deepest, three-dimensional soundstage whilst recovering the most subtle details and rich layers in even the most complex musical passages.

Hybrid Design

The Stellar S300 benefits from the fusion of ultra linear, high-current, Class D output and a discrete, zero feedback, Class A MOSFET input stage called the Analog Cell. The Analog Cell's sonic character is designed to engage you with richness and warmth whilst the the Class D output stage gives the S300 its great power handling and authority over the loudspeaker.

Engineered by Darren Myers

The Stellar was engineered by Darren Myers who understood the importance of the Class D's low disortion, high current, flat linearity character on its sonic abilities. The critical interface between power amp and pre amp is where Myers employed the Class A based MOSFETS to cultivate its sweetness and warmth on the music. Coupling input and output stages in this way brought about the invention of the Analog Cell.

Analog Cell

The Analog Cell is the beating heart of the Stellar S300’s musicality, where the richest layers and finest details are preserved in even the most complex musical sequences. This is the critical connection between preamp and power amp. The fully differential Analog cell is a zero feedback, balanced, Class A MOSFET input stage, designed to capture the finest musical nuances without compromising the loudest macro dynamics from your speakers.

Uncomporomised Sonics

Stellar represents extraordinary performance at great value. It provides you with the power and grace to compliment your speakers perfectly and ensure your music sessions are heard with pure emotion, warmth and detail. Uncompromised sonics and state of the art topologies promise a groundbreaking performance from the Stellar, every time.

Key Features

- Stereo power amplifier
- Dual mono, each with their own power supply
- Zero-loss Analog Cell input stage
- Powerful MOSFET output stage
- RCA Single ended input
- XLR “true” balanced input
- 140 watts per channel 8Ω
- 300 watts per channel 4Ω
- 2Ω stable
- Less than 0.1% thd 20Hz to 20kHz at rated - power
- Damping factor greater than 550 for excellent loudspeaker control
- Front panel standby button
- Efficient operation with very little heat
- Dual, solid copper, plated, output binding posts
- 13 pounds
- Input 12 volt trigger

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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