All amplifiers sound different. What determines sound quality are the components and topologies of the amp's input voltage stage and output current stage. Each section should complement the other. Between them, the amp develops its sound.Stellar's design imperatives - affordable pricing, and uncompromised sonics - were major challenges solved by the invention of a unique new circuit christened the Analog Cell.
Stellar engineer, Darren Myers had planned from the outset to take advantage of Class D's high current, low distortion, ruler flat linearity for the output stage - knowing full well it is the input stage that determines sonic character. This critical interface between the preamplifier and power amplifier is where Stellar's magic would be unveiled; where Myers could lavish upon the music the sweet, tube-like quality of Class A biased MOSFETs. His challenge was to synergistically marry both input and output topologies, for which he invented Stellar's Analog Cell.
The Analog Cell is the heart of the S300's musicality, where richly overlayed layers of music's inner details are preserved even in the most complex orchestral crescendos. 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 the loudest macro dynamics music has to offer.
Audio Inputs: RCA (Unbalanced), XLR (Balanced)
Speaker Outputs: Copper base nickel plated binding posts (2 pair per channel)
Other: DC Trigger Input, 3.5mm 5-15VDC
Gain: 30.5dB +/-0.5dB
Sensitivity for rated output power: 1.01V
Noise (1kHz@300 Watts): <-100dB
Input impedance: Unbalanced 50K, Balanced 100K
Output Impedance (50Hz, 2.8VRMS): <0.007
Damping factor (50Hz. 2.8VRMS): 8; >1100, 4; >550
Frequency Response (@2.8VRMS): 10Hz 20KHz +/- 0.5dB, 10Hz 50KHz +0.1/-3.0dB
1KHz, 1W/4 <0.02%
10-20KHz, 1W/4 <0.02%
10-50KHz, 1W/4 < 0.05% (90kHz BW)
1KHz, 37.5W/4 < 0.01%
Both channels driven 1kHz, 1% THD
8: 140W minimum
4: 300W minimum
2: Stable for musical transients
Dimensions (WxHxD): 432 x 76 x 330mm