Sony SCD-XA777ES or SCD-1

Current player: SONY DVP-S9000ES. Considering upgrading to one of these:

- SONY SCD-XA777ES new, $2500
- SONY SCD-1 Used, but mint, $2500

Amplification is PASS LABS Aleph P + 3 + 0s (bi-amp)
Software: 90% CD, 10% SACD
Musical Types: Jazz and Rock

What do you think?