Jeff Rowland Concerto or Simaudio i7 integrated?

Dma3763, FWIW, Have you ever considered the Edge line of equipment,this stuff is truley amazing,I feel that it gives you the best of both worlds (SS vs. TUBE). Also, heard at one time that Tyler was impressed with the Edge sound and his product... Good luck...

Thanks again for your inputs.
I finally settled on something totally different. From T+A (Theory + Applications); a German firm.
Integrated: http://www.taelektroakustik.de/eng/ta2/r_system/pa_1230_r.htm
CD: http://www.taelektroakustik.de/eng/ta2/r_system/sacd_1245_r.htm
I got the CD player as a demo and bought the amp new.
Very fast, wide-bandwidth components. Neutral and very detailed (but not harsh) sound. Extremely well designed; compact yet very powerful. With my Tylers, they make for an incredible system.

Which amp did you get? I am looking for an integrated and they show 2 of them, 1230 & 1530.

If you click on the link (integrated), it will bring you to the page describing the 1230. I bought the PA1230 (100 watts/channel). More than enough. I was very tempted by the 1530 (150 watts/channel), but it was beyond my budget.