Speaking as the man that knows what it [i]used [/i]to sound like, both when it was new and when the last bout of 'repairs' was done, I can safely say that this is unrecognisable.
The originally fitted KA preamp circuit, was[i] very[/i] noisy, for reasons I'm still not completely clear about, and the bass after the circuit was removed, simply sounded flat.
This, is frankly, amazing work.