Questyle - CMA Fifteen

Questyle - CMA Fifteen DAC/Headphone Amp Questyle CMA Fifteen is the latest evolution in Questyle’s ultra-high performance compact headphone amp/DACs. In addition to Questyle’s well-known proprietary technologies, the CMA Fifteen includes analog inputs, allowing it to serve as the preamp/DAC hub for a simple audio system of extraordinary performance and reasonable cost. The CMA Fifteen commemorates 15 years of Questyle products utilizing Current Mode Amplification (CMA), and takes that technology one step further by directly coupling a Current Mode DAC with CMA. The output of most DAC chips is in current form, which is then amplified as voltage, following conversion by an intermediate stage. The M15 directly feeds the DAC’s current output into four balanced current mode amplification stages, eliminating unnecessary complications, and resulting in sound quality of unrivaled clarity and purity. Other noteworthy features and design elements of the CMA Fifteen: Current Mode Amplification