The sizing of a transformer is actually a lot more complicated than just determining how many watts the unit consumes. Also, the fuses don’t necessarily indicate "actual power use" as they are usually sized to be over the actual usage to allow for those slight "overhead surges".

In your case, the description of "high current transformer" is most likely a marketing ploy. The PM6006 only really pushes 45 watts per channel into 8 ohms and 60 watts into 4 ohms, so it is not a "high current beast" anyways.

The power output of the amp is really determined by the combination of transformer size and power supply capacitance size. It will be a sliding scale. Let’s take two examples:

Parasound A23 - 125 watts x 2 into 8 ohms

1000 VA transformer (1kVA)

48,000uf capacitance in power supply

Odyssey Khartago basic version - 110 watts x 2 into 8 ohms

400 VA transformer

120,000uf capacitance in power supply

So, both have about the same power output, but one has a tiny transformer with huge power supply bank. The output of the Khartago is mostly driven by the power supply capacitance (bass hits) because the smaller 400VA transformer just doesn’t have enough brute force to power/push the bass frequencies.

The output of the Parasound is driven more from the massive transformer for the larger bass frequencies (current coming in from 60hz A/C waveforms), with the smaller capacitance filtering for ripple and faster midrange/high transient spikes.

So if you’re just asking out of curiosity, the answer is "it really depends". lol.