My A90 update in my system:
VPI HRX turntable
Kuzma 4 point tonearm
Ortofon MC A90
Whest MC REF V Phonostage
Lamm Preamp
ATC Active 150SL
Well..
The Ortofon A-90 is in a very different league to the Windfeld I had been playing for the past 12 months. In every area the A-90 is so much better than anything else I have heard in my system.
I've been spinning LPs by 70's Japan, 70's Doobie Brothers, 70's Cameo, The Impressions, Steely Dan, Coltrane, Hargrove, Dennis Brown and many more.
The way the A-90 sounds is so much more lifelike. Instruments take on a very different dimension. More 3D if that makes any sense. If you have never experienced 3D in your system then get a Windfeld or ZYX Airy 3.
The bass extension and precision on the A-90 are second to nothing else I've heard and more importantly bass 'space' is uncannily live. The midband is so clear and clean that you think there is someone sitting in your living room singing and the high-frequency is delicate but detailed and sizzling with life. The noise floor has dropped also.
As for things like pace, timing etc....WOW. Everything I have played 'feels' like it should. The dynamic range of my vinyl system has been 'upped' by what sounds like 80dB. The soundstage and imaging is SO much better... not that the Windfeld was not good at that but the A-09 is just much more realistic.
I'm loving this system more and more. I've been collecting vinyl since I was about 9 years old and have just under 12000 LPs in total. Mainly Jazz, Soul, Northern Soul, Roots Reggae, 70's prog rock and 70's folk and everything I have played from each genre sounds like --- 'I discovered it all over again'.
Would I recommend the A90... Hell Yes! Yes it's bloody expensive but then you only live once.