CRC is a powerful amplifier power supply. Measurements, characteristics

Summary: As we can see, there is a difference in numbers and in some characteristics it is quite significant, but not every listener will be able to hear it, because it is at a very low level of audibility. But if we analyze these very low levels according to the spectra of the graphs, then the difference here is very large in favor of the CRC filter. The spectra of the amplifier with a CRC filter come close to a stabilized power supply, which results in a softer and cleaner sound. Also, the possibility of excitation of the amplifier with this power supply is significantly reduced. Another indisputable advantage of this implementation of the power supply is an increase in the safety of the device as a whole, since the resistors of the CRC filter, indirectly, act as fuses, and if a powerful fuse (10A+) is installed in the primary circuit of the transformer, they will burn out and break the short circuit. The downside of the CRC filter is a slight decrease in efficiency of 2-5% compared to a power supply based on a C-filter, hence the same decrease in the maximum power of the amplifier, however, this indicator correlates with 220V mains voltage drops and is not significant. The second disadvantage of this particular module is its weight and size, and this must be taken into account when designing and assembling a finished amplifier in a case. The module can be recommended as a basis for building a high-quality, stationary power amplifier in a spacious case. You can buy this power supply from our kit-amp.com store. The module is literally the "Golden Mean" between conventional C-filter based power supplies and stabilized, linear, transistorized power supplies.