Yamaha\Phaedrus\Clear Audio "active" phono pre

Can someone characterize the sound quality of the so-called "active" MM/MC cartridges with a micro-preamp placed in the tonearm, such as Yamaha HA-2, Phaedrus Flux, ClearAudio Absolute Phono? Are they really so complex and perfect that they justify the price of 10 k$$ like the Absolute Phono? In comparison with phono preamps located in a box and connected with carts via long cables.
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I`m sorry for delay, (
there were 6 airalarms in my Kyiv yesterday/night,) I find some circuit details about subjs, buyt it is not enough info. Has anyone more about&?


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