Davide
Senior Member
I am considering getting a power amp to plug directly into the DAC, but as good as the digital volume control is, I have a terrible fear that it will accidentally fry my speakers and ears
Balanced preamps like the Topping Pre90 honestly cost too much in relation to their function, so I'm looking for a cheaper solution.
My current idea is to use a line attenuator H-pad style (on the market there are several such as Rothwell or Shure) that reduces the level to reach, let's say, about 90 db SPL from the speakers, and then I do the remaining attenuation with digital control. So I avoid the aforementioned risk ... and by the way I also gain something in SINAD compared to the complete digital control.
Such a system should be similar to that of the RME ADI-2 or the Gustard P26.
But now my perplexity, not being an expert on the subject, is how to calculate the attenuation necessary to have the desired SPL.
Maybe it would also be nice to size the H-pad directly so I only buy the resistors instead of the commercial attenuator (which still has its cost).
Could anyone kindly help me?
Thanks!
Balanced preamps like the Topping Pre90 honestly cost too much in relation to their function, so I'm looking for a cheaper solution.
My current idea is to use a line attenuator H-pad style (on the market there are several such as Rothwell or Shure) that reduces the level to reach, let's say, about 90 db SPL from the speakers, and then I do the remaining attenuation with digital control. So I avoid the aforementioned risk ... and by the way I also gain something in SINAD compared to the complete digital control.
Such a system should be similar to that of the RME ADI-2 or the Gustard P26.
But now my perplexity, not being an expert on the subject, is how to calculate the attenuation necessary to have the desired SPL.
Maybe it would also be nice to size the H-pad directly so I only buy the resistors instead of the commercial attenuator (which still has its cost).
Could anyone kindly help me?
Thanks!