This amplifier currently (early 2026) costs 9,750 PLN (which translated to 2500 Euro). For that price, you get a remote control (that controls both volume and source selection – this is a standard in the new model), a protective basket for the tubes, a built-in preamplifier input and a subwoofer output. In other words, for around £2,000, you get a tube device made entirely in Poland, by a reputable and recognisable manufacturer that backs you up with their technical expertise. Even more, it is a device that uses many very modern and well-thought-out design solutions. These solutions should – just should – translate into two things. One would be obvious real-world functionality. And the other, possibly more importnt, would obviously be sonics. We will take a closer look at the new FEZZ’s contraption and see how things turn out…
FEZZ Luna – design and functionality
Let’s start with what is quite obvious and can be seen from the outside. The design of this amplifier is generally similar to the Silver Luna model that it replaces. It is also identical to all devices in the previously mentioned EVO line. As I pointed out when discussing the Silver Luna amplifier and reviewing the Titania model, the appearance of the latest amplifier is the result of collaboration between FEZZ and the KABO&PYDO design studio. Of course, for many this will be a highly subjective matter, but the fact is that FEZZ amplifiers look both modern and should feel at home in various spaces.
Other thing is that you can simply see that these devices are not the result of chance and, from a visual point of view, they were created by a designer with a keen eye for the detail. As with many other FEZZ products, the new amplifier is available in several colours. The Moonlight versions was sent to us, but there are six other variants available. So much for the appearance, because the functionality and, above all, the design of the new amplifier are no less interesting. Starting with the former, let’s take a look at the rear panel of the new Luna.
In addition to speaker terminals for two different speaker impedances, we can also find a rather interesting array of both inputs and outputs. While the number of line inputs is perhaps a bit modest, we also have a direct input for a power amplifier and an output – to make things more interesting, a stereo one – for a subwoofer (or actually subwoofers). So, if someone wanted (which is, contrary to popular belief, quite justified) to connect two subwoofers directly to the Luna, this is definitely possible. There are two switches on the rear panel too. One is used to “raise” the ground and will be useful in case of humming noises. And the other is used to select the operating mode of the amplifier itself. Let me get back to this a bit later, since now I would like to return to the whole concept of the amplifier itself. The new Luna belongs to the latest series, which is best described by Mr. Jakub Korpacz from FEZZ:
“Fezz is introducing a new line of amplifiers to replace the existing EVO devices on a one-to-one basis. They are all equipped with a standardised set of new features, previously available at an additional cost or not at all. There is now power on/off, source selection and volume control via an IR remote control; expansion card slots, sold separately, allow users to equip their amplifiers as they see fit: with BT, phono preamp, DAC, XLR inputs or others. This transformation provided an opportunity to thoroughly redesign all amplifiers, essentially creating them from the ground-up and taking into account the lessons learned from 10 years of production. The philosophy behind the design of the new Luna circuit, but not only that one, was that: to create an amplifier with the most faithful sound reproduction possible, capturing the smallest micro-details and revealing the truth about music, without adding anything of its own.”
Particular attention should be paid here to the unified functionality of the new model, because now we can turn the amplifier on and off with the remote control. The more observant will also notice that, compared to the previous Silver Luna model, the new amplifier also has one tube more. This brings us to a very important and significant question, namely that the new model has a completely new electronic circuit, which:
“has been completely redesigned. An extensive cathode-coupled inverter has been used instead of the previously used split-load phase inverter. It provides approximately twice the amplitude of the drive voltage with a lower level of distortion. Due to the symmetry of this circuit, some of the distortion inevitably arising from the non-linearity of the tubes is simply compensated for, i.e. the distortion produced by one tube is balanced by that produced by the other one. It is a simple yet very elegant circuit, but one that requires the use of three tubes instead of two, so the number of pre-amp tubes had to be increased.”