Hi. I have put together a very nice little 2 channel music system comprising of a DV137 dvd machine (soundsfantastic with cd's), a Delta 90 amp, and a pair of Spendor S5's. I love the scale and weight that this system produces, but always have the itch to improve further. I have spotted an FMJ A19 in the classifieds, anyone know if this would be a significant upgrade over the Delta 90? I'm happy with the sound, and only want to change to get an improvement, not just change for changes sake. Regards, Lee.