Posting this for a friend of mine.
His current Equipment:
Soundblaster Audigy
Yamaha RX-Z1
Ebtech Lineshifter
Rane RPM2
Crown XLS402
Cerwin Vega E715 speakers
1 15" CV sub
1 10" CV sub
He's obviously huge into SQ, but i feel his Vega's are not for the audiophile. He's looking into spending ~2000 on either a new set of speakers or spending that money on a DA converter. What do u all recommend. He was absolute SQ but he likes shaking stuff off his walls

Music only, zero HT. Recommendations?