Well i found my new amp way too bright..
so i've rewired the inside of the cab using the inside of a mains cable instead of the high quality speaker lead i've used.. and put a pair of beam blockers onto the front of each speaker..
and now it's tonal bliss i get that lovely vintage sounding crunchy bottom end from the private jacks without the ear piercing treble and high end.
took me about 3 hrs of experiementation this morning but it's rather good!