PS Audio Stellar S300 Power Amplifier $1649 Review

February 21, 2023 Comments Off on PS Audio Stellar S300 Power Amplifier $1649 Review

Toward the conclusion of this evaluation, I challenged the S300 a final time. Thanks to the generosity of MBL’s North American distributor (for which I’m forever grateful) I still had the remarkable MBL 126 compact Radialstrahlers on hand. And if there was an octave range where the S300 might show a little temperament, it would be through one of the most transparent midrange/tweeter combinations I’ve ever experienced. Few loudspeakers are more revealing of timbre and texture or as transparent and sensitive to low-level detail as these marvelous omnidirectional three-way compacts. However, they are sensitive to electronics, demanding accurate, reliable. and generous amounts of power. I typically drive them with MBL’s own Cadenza C51 180Wpc integrated ($9800), a Jürgen Reis-designed Linear Analog Switching Amplifier (LASA). The Stellar S300 put forth an excellent effort driving the Radialstrahlers. On larger-scale brass and wind pieces like the sweeping Liberty Fanfare [Wilson Audio], they demonstrated superb command and control over the barrage of heavy percussion. But in direct comparison, the S300 lacked the epic bass extension and hard-core slam of the MBL C51, a trademark of Reis designs. The top end might have been a little drier, too, lacking the effortless harmonic bloom of the MBL amp. Nonetheless, the S300 put on an impressive show, to say the least.


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