I am aware of the concept of color gamut differences between color spaces, although my eyes are not yet highly attuned to actual differences in terms of the actual results. I seem my stuff printed in magazines and brochures, so I have some frame of reference from that. It has been a while since I have done any serious inkjet printing, but things seem quite different now than in the past, when I was using the same hardware, inks, profiles and papers. I should expand my original comment to say that this seems to effect all reddish and orangeish tones, resulting in more saturation and perhaps a shift more towards red in the printed result, compared with the monitor view. To clarify further, I have been working with source images that have the Prophoto profile, with a Lightroom or Photoshop Prophoto working space. I just tried converting an image to an sRGB profile and printing that to compare. A slight dulling of the colors with the sRGB image is the only difference I can see.
Papers I have been using for comparisons are Epson Ultrapremium Presentation Matte and Red River Polar Matte, which I find to be very similar papers, with an Epson 3800 and the manufacturer's stock profiles for each paper.