I agree with the suggestions regarding room treatment. The actual sound coming from your speakers may not be as thin as you think.
The large, hard, flat reflective surfaces could be creating peaks along certain lower treble and upper midrange frequencies that might give the illusion of an overall lean sound. Covering these areas especially the first reflection points with tapestries or unobtrusive drapes may help.
Your hard wood floors aren't helping either. But they're beautiful, and I think covering them up would be defeating the purpose of having them in the first place.
Being that your speakers are so close to the back walls there should be sufficient bass loading although as some Kharma owners have pointed out this may not be the best for them because transparency and imaging might be compromised. I think you'll have a better idea of what needs to be fixed once you bring the speakers forward and treat the side walls.
Also, Jond's suggestion of getting the preamp off the CD player is a good one. 6SN7 tubes are very susceptible to microphonics and can pass on any mechanical vibrations they're exposed to in the form of distorted music. Sometimes when one of mine are going bad I can here a ringing transmitted from the thump of my volume knob hitting the end detent that makes its way from my speakers as a "ping".
I wouldn't blame the Ken-Rad Black Glass VT-231s either. They have a reputation for a big, full, slightly dark sound. I use them as well.
I wasn't very impressed with the Absolute Power Cords myself. I felt they weren't much different from the stock ones they replaced. Your system definitely deserves better, and there are some out there that can help produce a fuller sound. I just built one of Chris Ven Haus' DIY cords over the Labor Day Weekend and will be experimenting with it once it's broken in.
You have a VERY nice system and room. I hope you can solve your problem to your satisfaction.
The large, hard, flat reflective surfaces could be creating peaks along certain lower treble and upper midrange frequencies that might give the illusion of an overall lean sound. Covering these areas especially the first reflection points with tapestries or unobtrusive drapes may help.
Your hard wood floors aren't helping either. But they're beautiful, and I think covering them up would be defeating the purpose of having them in the first place.
Being that your speakers are so close to the back walls there should be sufficient bass loading although as some Kharma owners have pointed out this may not be the best for them because transparency and imaging might be compromised. I think you'll have a better idea of what needs to be fixed once you bring the speakers forward and treat the side walls.
Also, Jond's suggestion of getting the preamp off the CD player is a good one. 6SN7 tubes are very susceptible to microphonics and can pass on any mechanical vibrations they're exposed to in the form of distorted music. Sometimes when one of mine are going bad I can here a ringing transmitted from the thump of my volume knob hitting the end detent that makes its way from my speakers as a "ping".
I wouldn't blame the Ken-Rad Black Glass VT-231s either. They have a reputation for a big, full, slightly dark sound. I use them as well.
I wasn't very impressed with the Absolute Power Cords myself. I felt they weren't much different from the stock ones they replaced. Your system definitely deserves better, and there are some out there that can help produce a fuller sound. I just built one of Chris Ven Haus' DIY cords over the Labor Day Weekend and will be experimenting with it once it's broken in.
You have a VERY nice system and room. I hope you can solve your problem to your satisfaction.