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Etapa Krell EVO 402


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Etapa de potencia. Estéreo 400W a 8Ohms FEATURES Active Cascode Topology eliminates global negative feedback, only neste Etapa de potencia de referencia 2x400w. Entradas Cast/XLR d local feedback is employed around individual gain blocks. The result is an extraordinarily open, liquid, effortless sound. The signal path incorporates Krell Current Mode and CAST circuitry using proprietary multiple-output current mirrors in a complementary and balanced arrangement for extraordinary open loop linearity. Evolution circuit topology breaks through bandwidth limitations of conventional designs resulting in near perfect performance in the audible range. A complete Evolution (source, preamplifier, amplifier) system, connected in CAST, reduces the number of voltage gain stages to the minimum, one. The resulting noise floor is approaching the theoretical limit of technology. All Evolution amplifiers feature massive power supplies with the Evolution 402 and Evolution 600 equipped with a 5000 VA power supply and the Evolution 403 and Evolution 900 housing 6000 VA power supplies. The power supply makes use of extensive electrical and magnetic shielding to keep radiated interference out of critical amplifier circuits. Internal high current line conditioning circuitry filters RF noise on the AC mains, as well as compensating for asymmetric power waveforms and DC on the mains. The rails powering the amplifiers' low level and gain stages are regulated twice for total immunity from fluctuations in the AC mains and virtually noise-free output. Advanced microprocessor control monitors critical operational parameters. Bias, load impedance, regulator output voltages and operating temperature are all continuously monitored.


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