Hi to everyone. I'm new to this forum. I have entry level project carbon deck with marantz pm6005 amp and marantz cd 6005 player plus 2 monitor audio speakers. When I bought these from a well known high street hi fi shop, I was advised by the salesman it would be a good idea to buy a separate preamp (even though my amp has a phono socket ) as it would improve the sound. I'm no audiophile but I've compared my system with and without the preamp but can't notice a big difference. I think it is slightly clearer with the preamp. Have I really wasted the 60 or so spent on the preamp. Is the built in amp on my entry level marantz enough? In general is a separate preamp worth it with my entry level setup.