Jayants sorry have not seen ur signature
You have very good source and Amplification but IMHO bare basic Lousy speakers.
In fact I have seen people spending much more on speakers than rest of the components in chain... your case is different
and any good component is as good as weakest component.
By the way I have reasonable expertise as smalltime second hand seller and hobbyist .... these sansui amps considered very good
AU D 11
AU D 9
AU 717
AU 919
G 33000 Receiver
9090DB receiver
Now my take on vintage
WHAT IS UR BUDGET FOR AMP + SPEAKERS??
CAN YOU GET UR STUFF FROM ABROD ?
I Sold AU D 11, AU D 7 ,717 and numerous other sansuis in the past , as well as NADS..
I feel people become OVER ROMANTIC while describing sound and you MAY NOT like particular sound . .AU D 11 has totally different sound than AU D 7 & where I really liked D7 being more bass heavy.
I sold D11 , which I bought as keeper amp as I found sound bland.By the way it was near mint , I was not able to find any change of components. unnily I never saw any ad for D11 after my AD.
Also Pioneer, Technics,Kenwood , Marantz had fantastic vintage Amps. Again Sony too made some deadly amps. Just check thevintageknob site
The Vintage Knob - Online vintage audio museum, forum and image bank
My suggestion is if you have sufficient budget give a chance to modern sound - in fact fix up a budget for Amp + Speaker and audio as many as possible preferably carrying YOUR gear , you may find something worthwhile. In fact check some studio monitors too one of the BEST sound I heard was Genelac , gain I had modest M Audio 8 Inch studio monitors , which for the price I found pleasing.
DO NOT GO BLINDLY for particular models. In a pune meet 2ars back we found Acoustic Portrait Pre Power was highly overrated - that too after numerous combination of cables ,sources and speakers ... and the power amp was beaten by a Norge amp costing one fourth of the price!!!