This is for Georgehifi especially but others can chime in.

Try the ATC P1, class A recommendation from Stereophile and on sale at Sweetwater sound inc.
https://www.sweetwater.com/store/detail/P1Pro

Dsreamer, it is not that Pass Labs isn't great gear it is but perhaps there are even better products out there at the same price:

Musicfx tested a T+A 2500R integrated vs the Pass integrated at the same price and found the T+A  was better to his ears.

Check out his thread he was looking at new electronics to drive his Wilson Sashas and was comparing a T+A integrated which he found out by reading our posts, to a Pass Labs and a Prima Luna.

I have heard the Pass stuff and it is very good, what makes the T+A to our ears even better is the superior rhythmic quality and greater transparency of the T+A gear while still retaining a somewhat warm quality in the midrange which the Pass also does. 

So to recap, will  a pair of Pass Labs mono blocks sound good of course they will, the issue isn't what just sounds good, is that are x, y or z the best product for the money as well as for the sound quality, can I get better sound for the same money? 

The T+A gear walks the fine line between detail and resolution and musicality, it is very fast, clean and dynamic while just being engaging to listen to this is a very hard balancing act and one of the reasons we endorse the brand. 

Again we are not saying T+A is the best gear out there, it is among the very best gear you can buy and when compared to the most expensive gear the T+A usually comes close at 1/2 to 1/3rd the price which is why we recommend it.

Compared to Hegel, Luxman, Naim, Electrocompaniet,and Norma, Anthem, and a few others we have sold or continue to sell, the T+A is clearly better and in a higher class of gear then these other fine brands.

How do we know look at our video and see for yourself we have tested and continue to test many brands on the market.

One of our sound rooms has 54 components in it.

https://youtu.be/1NPIn3pEmI4

You can see some of the products we have sold and we have replaced some of these brands as we found even better products.

Dave and Troy
Audio Doctor NJ

One of our sound rooms has 54 components in it.

How can anyone make a serious judgement about the sound when there are more than one pair of speakers in the room? as all the other unused speaker cones are happily bouncing back and forward in sympathy with the ones being used, you may as well have drummy walls, floor and ceiling.

Cheers George    

George hifi, that is nonsense

Yes you can easily hear the difference's in sound when you switch one component for another wether you are switching amps, or dacs, or cables the differences in the sound is easily discernable.

We would prefer to have only one pair of speakers in the room, vs the other speakers that are in storage, but if you want to be able to offer a good choice of speakers then they have to go somewhere. 

Yes having other speakers in the room does negatively affect the sound somewhat, but when a client auditions a set in our show room they will understand these interactions and know that the speakers will sound even better in their own rooms.

Dave and Troy
Audio Doctor NJ

George hifi, that is nonsense

Really!! Then you are doing a disservice to the sound of any speaker demo, with all those other unused ones in in same room.

Cheers George