Description
Is it possible to make the best amplifier in the world even better? Our engineers were faced with this enormous challenge during the development of the MX4 PRO. Because at the level of a BRAX product, it is important to always question and optimize every detail, even if it seems insignificant at first glance. Only in this way is it possible to push the boundaries - both sonically and technically - further and further. In the end, we succeeded in redefining the standards in amplifier construction with the MX4 PRO. It is the perfect symbiosis of state-of-the-art components and congenial circuit improvements, without neglecting the previous virtues and traditions for which the BRAX brand enjoys the highest reputation worldwide.
It is still a matter of course that Audiotec Fischer is the only manufacturer ever to use only hand-selected transistors for the production <a href="https://www.audiotec-fischer.de/brax/verstaerker/">of each BRAX amplifier</a>, which are divided into over 300 classes using self-developed measuring devices and assembled accordingly. This unique method guarantees not only the lowest series tolerances, but above all unique measurement and performance values.
Above all, however, the enormous effort involved in supplying power to all assemblies also plays a significant role in the overall performance. Separate and stabilized power supplies for two channels each guarantee optimal working conditions for the individual amplifier stages. The electrolytic buffer capacitors specially manufactured for Audiotec Fischer with extremely low internal resistance thanks to 8-way contacting are now just as legendary as the encapsulated high-performance toroidal transformers, which can shake more than 1,800 watts of power supply power out of their sleeves. A completely revised PCB layout with four solid copper layers ensures maximum power delivery capability - so it is not surprising that the MX4 PRO with 4 x 300 watts RMS can provide even more power than ever at the speaker terminals.
But that's not all – the MX4 PRO is also a prime example of bridging the gap between analogue amplifier technology and the digital age. For the volume control of the digital signal inputs, a hitherto unique effort is made. As an absolute novelty in the CarAudio segment, in conjunction with the <a href="https://www.audiotec-fischer.de/brax/prozessoren/dsp" target="_blank" rel="noopener">BRAX DSP</a>, the signal level is controlled without reducing the digital resolution only immediately before the output stages that drive the loudspeakers and thus completely lossless in the analogue signal level. The volume information is embedded by the BRAX DSP in the digital SPDIF data stream and decoded again in the MX4 PRO. This alone illustrates the striving of our engineers for absolute perfection.
And, of course, this meticulousness continues in production. Each individual device is manufactured exclusively to order individually according to customer requirements and recorded in a service database with the corresponding serial number. This makes each <a href="https://www.audiotec-fischer.de/brax/verstaerker/">amplifier</a> a real one-of-a-kind, which can rightly adorn itself with the title "High-End Car Hifi made in Germany".