I am not a fan of bi-wiring, but bi-amping certainly has its merits. Imagine what the power supply and power transistors are going through in an amplifier to produce full range music. For bass transients, you have large capacitors being depleted and recharged within milliseconds, and large amounts of current rushing through the output stages for every bass note.... at the same time, that same amp is expected to deliver extreme clarity and stability in the midrange and up. That's a tall order.
Now imagine you could separate those jobs. To have an amp that can focus all its resources on just the critical mids & highs, without huge rushes of current to deal with the low frequencies. Of course it will do a better job of it. All it takes is twice the money, twice the space, and twice the power. Is it worth it in the end. I dunno. Maybe one amp, twice the price, would sound better.
Now imagine you could separate those jobs. To have an amp that can focus all its resources on just the critical mids & highs, without huge rushes of current to deal with the low frequencies. Of course it will do a better job of it. All it takes is twice the money, twice the space, and twice the power. Is it worth it in the end. I dunno. Maybe one amp, twice the price, would sound better.