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What are the technical and sonic differencies between the Puccini, Puccini S.E., Puccini Remote and Puccini S.E. Remote?
The integrated amplifiers in the “Compositors Series” fall into two categories, depending on the operating features: those without remote control capability and those remote controlled. The amplifiers without remote control (Puccini and Puccini Special Edition) feature a simple but refined circuit based on high-performance op-amps, whereas the “Remote” models feature a totally discrete components’ circuit. Both preamp section and power circuit of the latters show low feedback and large open-loop bandwidth. The output stage is common to both categories. Differencies between a “normal” model and a “Special Edition” one relate to power devices (two per channel in the base model, twice as much in the Special Edition model), and power transformers: one 150VA unit in the base model, two 200VA in the Special Edition. Besides, passive components’ quality is greater in Special Edition models (the value for some components in a S.E. amp is ten times as much that of same type components in the base model). Last, the Puccini Special Edition (and the new version Puccini Remote S.E.) are suitable for bi-wiring.
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What are the differences between the revisions of the Puccini SE and how can I recognize a revision from the other?
There are three different model of the Audio Analogue Puccini SE.
The first was produced since the 1996 until the 2001 and you can recognize it because it has a mechaical input selector and it hasn't the remote.
The second revision (with 4.3 revision PCB) can be recognized by the serial number, it has a relè baesed input selection with a self-return switch on the knob, this revision also has the remote (Puccini SE Remote)
The third revision (with 5.0 revision of the PCB) also can be recognized by the serial number. Such as the second revision the third has a relè baesed input selection with a self-return switch on the knob, it has the remote and has a different preamplifier section based on a BJT stage (while the previous revision have a JFET based input stage). The third revision also has an improved power amplifier output section.
Below there are some examples about how to recognize the revision of the unit reading the serial number:
N99B1368R3E – First revision (R3E)
N01M1285R43S – Second revision with PCB REV .4.3 (R43S)
A02C0080R50S - Third revision with PCB REV. 5.0 (R50S)
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