NuPrime Evolution STA Stereo Power Amplifier The NuPrime Evolution STA offers a breakthrough in distortion reduction. Coined the Only Distortion Cancellation (ODC) design, NuPrime has continued advancing the state-of-the-art Class-D for the past decade. Reaching a similar performance level as the Evolution One monoblocks, the Evolution STA offers the best of the ST-10 and the AMG STA while improving the performance to a higher level. Features NuPrime breakthrough Only Distortion Cancellation (ODC) Class D design. Preamp stage and Class D oscillation circuit utilizing high-end NJR MUSES8820 op-amp. 650KHz high-speed switching frequency allows greater resolution to be achieved. The 550W high-power ultra-thin toroidal transformer power supply has been enhanced to deliver cleaner and more stable power with lower noise floor. The entire power path fully adopts 40A ultra-high current and low resistance terminals. Improve current dynamic capability. Total of 52,000uF power supply filter capacitors. High quality copper PCB trace instead of usual cables are used to connect the power supply to the amplifier’s circuitry, maximizing power delivery. Hybrid Class-D technology that retains the merits of both Class-A and Class-D amplification. A stereo amplifier with dual mono implementation. Specifications: Power Output (RMS): 230W @ 8 Ohms , 310W @ 4 Ohms Power Output (peak): 270W @ 8 Ohms , 360W @ 4 Ohms Gain: x21 Sensitivity (to rated power): 2Vrms Input Impedance: 47K Ohms EVO STA WATT / THD / S/N (typical) : @5W (0.0025% ,95db) , @50W (0.007% , 105db) , @100W (0.01% , 110db) Frequency Response: 10Hz to 50kHz (-3dB) Trigger IN and OUT Standby Power : 1.5W @ 115V outlet, 1.7W @ 230V outlet Idle Power : 24W @ 115V outlet, 26W @ 230V outlet Worldwide AC voltage: (115VAC / 230VAC) with Voltage Select Switch AC Fuse : Slow blow , 7A , 250VAC Dimension : 430mm x 372mm x 66.5mm Weight : 10.5Kg Package Dimension: 642mm x 594mm x 254mm Package Weight : 14Kg Color : Black or Silver
