Ray,
The Sharp does not have a tape loop.
The Sharp and JVC ES1sl are both very musical to my ears, but they are different.
The first thought that came to my mind when I fired up the JVC ES1sl was "warm, inviting, intimate." Perhaps not the punchiest sound, but easy on the ears and very nuanced. It's very involving, rich, and warm and treats music in a gentle way.
The first thing I thought when I fired up the Sharp was "dynamic, clear, punchy, and exciting!" It made the music really exciting and fun to listen to. I've never owned Naim gear, but it kind of got me to understanding how some people really value the rhythm and pacing thing. I got so excited I wrote an email to my brother telling him he should get one. Cool thing about it was that it had certain very involving musicality - not harsh, sterile, or edgy at all. Just clear, musical, and dynamic. I actually hadn't been taken with music playback like that since I built my first 300B amp, the Audio Note Kit One. So I bought another one.
Those are the differences to my ears. Hope that helps.
Best,
KT