The new PS Audio 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. It's powerful, authoritative control over the loudspeaker stems from its high current, ultra-low impedance Class D output stage.
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 ground breaking. 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.
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 ground breaking. 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.
Specifications:
| 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 |
| 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 |
| 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 labor |
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 |
