TomSix
ALO Audio Studio Six deisgner
Class D is about producing a lot of power in a small footprint without melting. Are there any headphones that need 25 watts or more of power?
I hear what you are saying. Making smaller units for a given power output rating is one design imperative, making less expensive units for a given output power is another imperative, and Class-D allows for both goals to be met. Of course, such considerations are entirely aside/separate from any questions about audio quality.
I would submit there are a fair number of planar headphones which can derive some benefit from being driven with, say, 4 to 8 watt amplifiers. Class-D allows for a very compact and electrically efficient amplifier in this power range, and so if high quality audio (comparable to good quality Class-AB or Class-A amplifiers) was commonly obtainable from current Class-D amplification, then I'd think TOTL planar headphone aficionados would already be flocking to Class-D. But, is that what we actually see?