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https://passlabs.com/articles/loudspeakers-lamentראה :
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נלקח מ PDF מהאתר של PASS LABS על דגם 350.5
The Pass Laboratories™ X350.5 is optimized for loads nominally rated at 4 ohms and above. You can run the amplifiers into a lower nominal impedance without difficulty, and we are not aware of a speaker on the market that presents unusual difficulty with these amplifiers.
The X.5 series amplifiers do not care particularly about the reactivity of the load. Reactive loads typically will have slightly less distortion at a given voltage/current level than resistive loads, but will make the amplifier run a little hotter. The X.5 circuit was designed to be quite happy driving electrostatic and other difficult speakers.
When driving transformer-coupled loads directly, as in some electrostatic and ribbon designs, some attention must be paid to the DC character of the situation. If the transformer primary is being driven raw with no protection from DC and your source has DC voltage, or in cases where the small offset of the power amplifier is still too much, you may create distortion in the transformer and get less than optimal performance from it. Generally this is not the case with transformer-coupled loudspeakers, but it does occasionally surface. In these cases, take special care that the source does not contain a differential DC component, and confirm the differential DC offset of the pre-amplifier is sufficiently low. This differential voltage is easily adjusted by a qualified technician armed with the appropriate service documents.
בהצלחה !
תבדוק את 532H, מה שרצית אז, למרות ששני אום זה לא מגרש הכי טבעי של הקטגוריה שלו ...
