Audiopax, the Brazilian manufacturer of the Model 88 single-ended tube amplifier that I reviewed most favorably three years ago, introduced the Model 55 amplifier at T.H.E. Show. Solid-state rather than tubed, the 55 is still single-ended and still features the unique "Timbre Lock" control. According to designer Eduardo De Lima, this MosFET design sounds very close to the Model 88. Price is $11,990/pair (compared to the $14,990/pair of the current Model 88 Mk.II).