Sorry I meant F4, the signal still still passes through active IRFP240-9240 Mosfets, so it's not passive, even if it has no gain, it's still active
Cheers George
Cheers George
Most transparent power amp
Hi there,
i would love to hear what brand that you have experienced with transparent of sounding? The kind of transparent is similiar to solid state amp like Cello, Spectral, tube amp I would think is Counterpoint SA4.
i would love to hear what brand that you have experienced with transparent of sounding? The kind of transparent is similiar to solid state amp like Cello, Spectral, tube amp I would think is Counterpoint SA4.
Showing 5 responses by georgehifi
kosstAl's right, the F7 is far from being passive "no active components that the signal passes through" Cheers George |
What is the compromise in implementing the ZEROs Easy, you can hear/do this for yourself. On any amp that has no problem driving whatever speaker without the Zero’s. Then put the Zero’s in and you will then hear the compromises they make. But they do allow amps that are not driving the speaker well, to be able to do so, but I’d rather change the amp for the right one for those speakers, as these Zero’s are not cheap, for what to me is a band-aid fix. Cheers George |
awence_carpioI take it from this speaker thread you started, you have the Sasha’s, then my last statement in the 3rd paragraph, " and one that is able to drive your speakers without becoming a tone control." should be well considered. BTW OTL’s and most tubes, even mosfets have no chance driving the Sasha’s without becoming a tone control, you need current at low impedance for these speakers for the amp to stay flat (transparent) across the frequency range. https://www.stereophile.com/images/archivesart/710Wilfig1.jpg Stereophile: " Sasha's plot of impedance magnitude and electrical phase (fig.1) reveals the speaker to be a demanding load for the partnering amplifier to drive. Not only does the impedance drop below 4 ohms for most of the lower midrange and upper bass, with a minimum value of 2 ohms at 86Hz, but there is also an amplifier-unfriendly combination of 3 ohms and –43° phase angle at 61Hz." Cheers George |
Most transparent power amp You’ll just get personal favourites asking this. But if you want to do some of your own homework, you may get what you asked. Pick an amp with low output impedance, with the lowest distortion without having to resort to high negative feedback, and one that is able to drive your speakers without becoming a tone control. This should give you your best chance to your question. Pity there's no such thing as a passive poweramp, otherwise it would be your answer. Cheers George |