in my project Bache-audio -002 first edition we use build in 2 active
Class D amp with electonic crossover , sub 20-150hz and upper bass
150-700hz , For 700-25000 hz we use only 2 capacitors, one for widerange to protect from low freq and one for super tweeter same idea, so you can use only one external preferable Tube low power SAT .
But a lot different combination can be used, for my point of view
is not necessary to use 3 same amps, Class D especially NCORE-Is excellent choice to power bass,tube is better to power mid and high.
If you have more question , email Greg
Class D amp with electonic crossover , sub 20-150hz and upper bass
150-700hz , For 700-25000 hz we use only 2 capacitors, one for widerange to protect from low freq and one for super tweeter same idea, so you can use only one external preferable Tube low power SAT .
But a lot different combination can be used, for my point of view
is not necessary to use 3 same amps, Class D especially NCORE-Is excellent choice to power bass,tube is better to power mid and high.
If you have more question , email Greg