Need opinions on duping CD's

I'm not too tech savy so forgive my question if it's answer is obvious.
I'm making a best of Beatles CD from the Re-mastered Stereo and Mono CD sets.
I'm using a two drawer Harmon Kardon CDR20.
My question is: Am I recording a perfect dupe as far as sound quality, or am I being limitedby the HK's dac? If so, what's a better way? I have high end CD Players I could use.
Ripping CDs to HD is legal as long as you have one copy that paid royalties - original CD or "Audio CD-R" copy (cheap).

Copy can be better than original since most of CDPs can only read given sector once, operating in real time.  With longer scratches CDP might start to interpolate missing data.  Ripping program can go to the same sector hundreds of times to recover it.  That way copy can be better than original and you can even recover completely unplayable CDs.
hollowman. Good nickname. Very appropriate.
It sounds music deprived.  Probably thought that the old iTunes download system was per play.  

Responding to OP:
Dupes done on a computer as suggested by spalialking usually sound better than orig.
Dupes made on a CD recorder don't. And the record companies "tax" blanks to death.

I don’t know the the machine that you are using, but If it is a CD recorder, with the original in one tray and the copy in the other, then the DAC in the machine should be a non factor.  All that is happening is the digits are being scanned and read and then passed and burned to the copy.  The DAC on these machines is in case you want to listen to either the original or the copy
I've always used computer drives and Nero to 'copy cd', quick copy. I cannot tell, copies of a great cd sound great. I recently made 4 copies of very familiar music to compare two players, moved orig here, copy there, all the same.
Thanks Mahler123 for answering my question.The dupe sounds incredible. I did an A/B listen test and my oldears couldn't tell the difference.