Will a Separate Amp Make a Difference

Thanks Vic for your response. I have found speaker placement to make a big difference. To a degree I may be responding to the reviews of individual amps (like the Ayre amps you have written about) that suggest that specific amps have distinct qualities that impact sound and performance. I guess I am curious about what characteristics one might expect to be different - in your system what impact do you see - is it bass, overall warmth or soundstage variations. I realize the only way to tell is to swap components but I thought I would pose the question nonetheless.
Art

Thanks Lak - I would like to buy something used through Audiogon and hopefully stay in the $4,000 range. I think it makes sense to try and select equipment to match the relative level of the existing components in the system. I am using an older CAL ikon MK 11 with a benchmark DAC, a REGA 2 and Purist Audio Design older fluid speaker cables. I would think it makes sense to look for a balanced ss amp since it would match well with the BAT preamp that was selected for the impact of tubes. As mentioned in my original note, I am happy with the system and I do enjoy listening - no major complaints. I am curious about whether I have reached a point where I have achieved most of what I can get out of the original Audio Physic Virgos.