Try www.vonschweikert.com then click on archives. This will show you some pictures and specs to compare. Also, there are some reviews. BTW, the 4.5 retailed for $6000 and the Gen2 for $4000. The 4.5 is more boxy looking and the Gen2 looks just about right to me. Of the VR-4's, I think the Gen2 looks the best, and I prefer it's shape over the Gen3. VR4jr is a whole different story cosmetically speaking.