Dynaco PAT 4 Pre-Amp ....Why is it Bashed??


I just bought this Dynaco PAT 4 Pre-amp.
AMP : Paired it with Emerald Physics Class D  100.2 SE amp
and 
SPEAKERS:  Mark Audio full range P12 
 I am puzzled why  there are so many negative comments  being posted regarding this pre-amp sounding harsh and bright.
It sounds good to me...clear and detailed.
Any PAT 4 Users .....comments?  ( in stock condition only)
thank you

rocky1313

Anyone  know anything about Frank van Alstine? I have a chance to buy a Pat 4 restored by him and am wondering if that rings a bell with anyone here.

I am tempted to buy a Dynaco PAS3 and ST70 built by Kenny Russell.  Kenny's units are beautifully built and to the extent you can tell via computer, sound great.  Check out Kenny's webpage at: GetDynaco.com  .

This reviewer is very low key and I appreciate his reviews.

All new Dynaco PAS3 by Kenny Russell - YouTube

Dynaco ST70 update - YouTube

 

Anyone  know anything about Frank van Alstine? I have a chance to buy a Pat 4 restored by him and am wondering if that rings a bell with anyone here.

Frank has been doing this sort of work for decades here in town. Its likely not the stock circuit. Frank has his own stuff he often installs in older Dynaco chassis.