B&K EX 4420 vs B&K EX 4420 reference


Looking at the specs, these two amps seem to have the same numbers. Any idea what the difference is?
Thanks 
skipper320
I owned a B&K EX4420 at the same time as the Reference 4430(3 channel) and the EX4420 seemed to have a bit more punch and refinement due to it being biased more class A or because it was a 2 channel amp vs 3 channel.  Not sure the reason though but that is what I experienced.

Both the EX4420 and REF 4420 are probably 95% the same amp mainly cosmetic from what I can tell.

Bill
Willland your first sentence nailed it and reflects my opinion as well,  well put.
" Willland your first sentence nailed it and reflects my opinion as well, well put."

@phd,

Thanks for the kind words.  I miss the EX4420.  It served we well and was a great trade for a Revel B15 subwoofer that has been rock solid.

Bill


Bill I have my B&K EX4420 hooked up to the Adcom GFP 565 preamp, you know the Stereophile Class B Adcom pre. Anyway these older components sound amazing together. I have two systems I like them both equally even though one is more expensive.