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First One - mosFET amplifier module

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J

Jaack

Member
Joined 2016
if i wanted to use a linear power supply with 1x T.F. per channel,what would be the correct T.F. V.A rating and secondary A.C voltage for the yielding D.C voltage for continuous 150 watts/8ohm 240 watts 4/ohm? ......i looked at the wiki page to determine power rating ....my understanding is....... the sq. root of (power x2)x load impedance or..(150 x2x 8)=49 volts-peak ....sq 49x49=2401-divide by load(8)=300-divide by 2=150 watts........to get the proper secondary A.C voltage, 49 has to be divided by the sq.root of 2 so 1.414 = about 2x 35vac/300va T.F...is this correct?..........sorry for being such a noob :sorry:
 
V

Voysto

Member
Joined 2013
Hello,

Sorry if this have already been said, I've been out of the forum for some time.

I understood that the L version is just around the corner. Is it already available ? If not is there a release date ?

Also, is there any news about the Small version like a release date or state of development ? Would it be a full class A ? Could it be use as a headphones amplifier ?

Are Cresnet SMPS 600W still highly regarded and on par with the hypex ? If yes, 61-63 V is still the recommended voltage for the M version ?

Thank you very much and sorry again if all of that have already been treated.
 
J

J.M.K

Member
Joined 2009
F.O. 1.4M installed

Hi,

I just finished installing my 2 brand new Cresnet SMPS 600 psus (47.5Volts)
with my FO 1.4M modules (dual mono setup).

The sound I get is extremely good.
The previous PSUs I had were traditional R-Core 360VA transformers and about 10 volts less on the DC rails.

I'd say that the difference in the sound I get from my speakers is a better dynamic making small details more audible in all the spectrum.

Beside this sound improvement, there is an important difference I've noticed with the Cresnet smps: the current I now get allows me to fine tune the bias and offset of the amplifiers modules in a very stable way - when it was more or less floating (up to + or - 40mV sometimes, sometimes less) before with my r-core transformers and MUR rectifiers ............

Pictures will follow, hopefully tomorrow.

Cheers

JMK
 
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