The transformers were supplied by Piemme Elektra Audio, a company with which we have a very good relationship, those who want to try their hand at building not only Aleph Clone but any other DIY audio project (power supply, interstage, output, inductances) can refer to this link, while at this link you can buy the transformers for Aleph 5 and on request for Aleph 3. By reporting in the notes “Audio2g” you are entitled to a discount in the form of a 10% refund, only for products in stock and for the entire month of May and June 2026. For the enclosure, I chose HiFi2000, a company that has accompanied my entire life as a DIYer, from the very beginning, first Andrea Bettazzoni, now his son Gianluca, carry on the original idea of making a plethora of HiFi enclosures of all types, sizes and finishes, as well as having a technical department capable of being able to make any type of workmanship. In particular Monoblock, which would be suitable for mono amplifiers, but since it is available with both single and double heatsinks, it lends itself well, albeit with some “contortion” to hold a stereo power amp.

The heatsink surface area is sufficient to dissipate the heat generated by the two end modules. There is also a protection circuit that not only does the soft-start, which is operated by a button under the vu-meter, which is essential to prevent the 230V current from being cut off when the power is turned on, but also, by means of two 75-degree sensors, cuts off the power supply when that temperature is reached: for a class A it is very important. In any case, the fins never exceed 60 degrees even in summer, so no “thermal” problems.

Finally, the concession to affectation, namely the large McIntosh-style VuMeter that towers, occupying the entire front panel. Below it is the standby LED. Via the switch on the rear panel, the stand-by circuit is fed with soft-start and thermal protection. Turning on the indicator light testifies to the correct operation of the circuit, and it stays on even with the power amp in Power-On, you notice the actual power on because the back-lighting of the giant Vu-Meter comes to life.




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