Tube or monos for ProAc Response 48D


Below is my 2 channel setup. I need feedback if upgrading 2-channel amp to monoblocks or one tube listed below would help. 

Speakers ProAc Response 48D
Amp: Emotiva XPA 2 "2 Channel"
PreAmp : Emotiva XSP-1
Speaker Cable: Morrow SP7
Source: Bluetooth and Marantz Reference TT-15S1

Upgrade in question : 

Monoblocks: Emotiva XPA-DR1 

OR
Tube: Dynaco ST-70

htatrakal
I would probably prefer the Dynaco although I have not compared the two. Currently using the Luxman MB-3045 on Proac D-40r speakers
 The Dynaco is a nice sounding amp, especially if it's been rebuilt. But if you're trying to decide between tubes and the Emotiva, I think you'll  be blown away by how much more realism a tube amp adds to the listening experience.
This ProAc is tube friendly, although you'll need some power since they are 4ohm speakers. The good news is most of the impedance curve is close to 8 ohms and will be easy to drive. A 70 watt Dynaco would do the job.
   But there are so many tube amps to choose from. Quicksilver monoblocks rated at 120 wpc may be over your budget, but I suggest you audition some amps and search the classifieds.


Thank you for the feedback. Looks like I need to find a nice pair of tubes to unlock the true potential. Although I live in LA, ProAc's are not ubiquitous to audition and decide. 

Thanks again. It helped me narrow down the list