SMSL SP200chat_bubble_outlineFrom real comments

Buyers repeatedly frame the SP200 as the value pick next to the Massdrop/Drop THX 789. Commenters cancelled 789 orders, bought the SP200 for as little as $140-235, and pointed out it avoids the 789's bulky external power supply. Several called it a 'no brainer' price-to-performance choice, especially when imported directly from China or bought used, though a couple of buyers still preferred paying more for the 789's build and controls.

Sound is described as transparent and detailed, but several listeners rank it just below the THX 789. Owners praise the SP200 for clear, punchy, low-noise-floor sound typical of THX AAA amps, good with headphones like Sundara, Heddphone, and Quad ERA-1. However, some directly compared it to the 789 and found it slightly less detailed, less separated, or lacking dynamics on drum transients, calling the difference more than 'slight' for sensitive ears.

A volume-pot design flaw causing channel imbalance is the most consistent complaint. Multiple owners report the left and right channels don't balance until the volume knob passes roughly 8-10 o'clock, an issue SMSL itself acknowledged as a design problem. Separately, commenters debate whether the XLR inputs are 'truly balanced,' with several explaining the louder XLR sound is simply due to higher source voltage, not genuine balanced circuitry.