Help! My system is very bright it hurts my ear

Simplify to a Bel Canto C5i integrated amp. Can be had used here when they come up for under $1000 (the price of less than a handful of audiofile fuses). SOTA at its price point and smooth as silk. Your ears and bank account will thank you. Has everything needed for analog, digital and phono in one tiny unassuming and great sounding box.

My C5i works great in this regard with my Dynaudio Contour 1.3mkII speakers which can also have an edge some might find too hard in many cases. I’ve heard the Quads, Monitor audio and Gallos and think it would be an exceptional and easy and affordable pairing to fix the problem and perhaps even sound better than ever in the end with any of those.

Regarding Bel Canto c5i, I would just say it is very good, quite top notch, as I described and might solve the problem in a fairly straightforward manner.

I've been listening to my second system in our family room that it is in more than ever since acquiring it in fall of last year.  It was a demo unit from a dealer here on Agon and cost <$1000 which is a steal for all you get.  

It is a true digital amplifier ie analog inputs are converted to digital internally and processed similar to straight digital inputs.   Amplifier is recent generation Class D Icepower which enables the output from a small package.    

Its only limitation I would cite is it is only 60 watts but that  is enough to drive most speakers very well to good volume.   It does very well with my Dynaudios which are notorious power and current loving speakers.   Very smooth and non fatiguing with those which is not necessarily the case with all good quality amps that are up to the task.

Can't go wrong to try IMHO if putting out the cash needed is not a problem.

I also run 500w/ch Bel CAnto ref1000m amps in my main bigger system.   I added the c5i based on my satisfaction with those prior.