Jeff Rowland Concerto or Simaudio i7 integrated?

I have the Concerto with the Super Towers and it is a great match. I once read that Ty used Rowland gear to voice his speakers, not sure if true or not but read it somewhere. I have been doing this since 1972 and this is one of the best combination I have heard without mortgaging the house. If you can pick up these components used, it is a great system at a very reasonable ( relative I know) price. Both pieces of equipment are first rate-you will NOT find better quality of product. The truth is in the listening.

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.