In the production version, I decided to use the Burson Audio Supreme Sound V5i integrated circuit. In the tested version, the housing, made of rigid steel sheet, was painted black, with the front in high gloss black. The first of them is loaded with an impedance of 47 k, and the value of the load for the latter manufacturer describes with a range of 50 - 1 k, but without offering a specific value. So, for example, one can connect two tonearms at the same time. These are, in fact, two printed circuit boards with electronic components applied to them in SMD technology. The preamplifier line will end with a tube one called Gloria. BURSON AUDIO, an integrated circuit reversed Opamp in the leading role | The main amplifying element of the Gratia preamplifier is the integrated circuit - Burson Audio Supreme V5i. So Fezz Audio reached for an idea that was known but surprisingly rarely used in commercial products - it offered the user the opportunity to easily switch opamps.
However, as far as I understand it, the idea was to offer music lovers a product that would be affordable (meaning - inexpensive). GRATIA Gratia is the largest Fezz Audio phono preamplifier so far. Zainteresowana transkrypcj pejzau dwikowego, wzajemnym oddziaywaniem sfer audio i wideo oraz dowiadczeniem camera obscura. Zgodno z w rozmiarze edukacji przyrodniczej z Uniwersytetem Dziecicym oraz Uniwersytetem Trzeciego Wieku, Zespoem Lubelskich Parkw Krajobrazowych I Polskim Parkiem Narodowym. rednio wyborcy PiS s starsi, mniej wyksztaceni, gorzej oceniajcy swoje warunki fizyczne a czciej wystpuj na wsi. Autor wystpi w ostatnim punkcie szereg rnych teorii budujc si na tekstach z pism takich jak Energy Psychology, Explore, czyli na poszukiwaniach Freda Gallo, Richarda Feinstein, Dawsona Church, James Lane take wielu nowych.kartkwkaszybko rozcigaj si donie oraz nogi oraz rce i stopy. Stawiajc stop na rdstopiu moesz zmniejszy obcienie biodra, czy kolana, wspiera naturaln stabilizacj staww skokowych i staww stopy i zwiksza minie tworzce na te stawy.tutajwith the audio system was placed at the back panel so that the input and output sockets - really nice ones - were soldered directly to it.
It is placed inside a metal screen. This is an integrated (operational) chip that the manufacturer calls "hybrid", enclosed in a metal screen. For the latter, the user received tweezers and additional integrated circuits that he could exchange, changing the sound as well. Interesting fact - the amplifying circuits and the power supply are bolted to an additional element, that adds enforces the whole design, and the latter is bolted to the top wall, i.e. In exactly the same way Marantz HDAM (Hyper Dynamic Amplifier Module) circuits were once made, presented - let's add - for the first time in 1992 in the PM-99SE amplifier. This allowed to combine the advantages of integrated circuits (short signal path) with discrete ones (low noise). The is a single power supply for the entire circuit, with one symmetrical voltage and one unbalanced voltage. This system features a FET input and is a replacement for a lot of different chips, for example from the Burr-Brown OPA series, but also the classic NE5532.
Zdzisaw Kulikowski - the man also responsible for the development of the Silver Luna - and the final optimization of the RIAA curve was carried out "by ear" by Maciek Lachowski. This is a risky move for the manufacturer, which is associated with tubes. The housing is additionally damped with mats glued to the upper and lower panels. Vivid and Classic models differ in the color of the plastic housing - red for Classic and orange for Vivid. The housing of the Fezz Audio preamplifier has been designed so, that these chips fit easily inside. Vivid/Classic | Together with the Gratia preamplifier, we received from Fezz Audio two other chips - even more expensive and even more interesting: Burson Audio V6 Vivid Dual and Burson Audio V6 Classic Dual. These are still the so-called OP-AMPs, or operational amplifiers, but they don't have much in common with "chips". It was a great novelty in Poland and the peak of technology, and they were produced - among other places - in Krakow's Telpod factory, where I had apprenticeships a few years later. You probably don't remember it, but in the '70s and' 80s a popular choice of Polish music lovers was the Unitra Amator receiver (models 1-3, produced in 1976-1985). Beginning with the DSS-201 ('2') version instead of integrated circuits in the output they used hybrid, "thick-layer" integrated circuits GML-026.
Switching opamps | I don't know if you remember, but some time ago there was a product on the market that offered similar feature - it was the ASUS Xonar Essence One digital-to-analog converter, available in three versions - the basic, Xonar Essence One Walor and Xonar Essence One Muses. Usually there is one common input for both MM and MC cartridges. The MC input is supported by low-noise transistors, while the MM input, and thus the second amplification stage for the MC, through a single integrated circuit for both channels (Ill get back to that). Already in the basic version we get an excellent, rarely used (because expensive) integrated circuit - Burson Audio Supreme V5i. Voltage is regulated using integrated regulators. The PCB is classically made using through hole assembly, so it was possible to use high quality passive elements. Both Burson V6 series models have the shape of high pillars - their base is 14.5 x 12.4 mm, and the height is 29 mm.
