Hi,Alex

> You might get noise and less power;

May be....
My first concern is what preamp is suit for ma-2402 or another.
SL-1 nor PSL-2 donot have XLR output,+4dB voltage.
I'm searching that type of preamp.My experience,studer A810 have that type of high quality line amps.but not so easy use.

I've asked a professional if there is any high quality line amps which have XLR output amps.He said there are some professional amps from germany but so expensive.price about 4000$ or so.
I did not said to buy.....

>Canīt You get Sony TA-N77ES or TA-N80ES easy there?,

May be....easy.
I have another Yamaha two PC-1000 poweramps for professional.they dont have noisy fans.280W+280W at BTL-use.
fan is so quiet but sound is quiet too. The sony may be lthe ight-weight poweramp,too?

anyway, I'll search that 'XLR'-pre and 'quiet' poweramps for 4343.