What to upgrade from Bluenote Koala? $3500 ish


I am thinking about upgrading from my BlueNote Koala Tube CD Player. I've done A-B comparisons to Audio Reseach CD3 MKII, BAT VK-D5 and Lector CDT.7. Each of those players resolved detail in a more musical way to my ears, and had a deeper more hologaphic soundstage. The Bluenote Koala is very dynamic, but has a rather forward solid state sound to it, albeit very musical. It is wonderful, but when I did the A-B tests, it was bested. I listen to jazz, Singer/Songwriter, blues, Rock. Artists such as: Keb'mo, Nora Jones, Diana Krall, Bruce Cokcburn, Amos Lee, James Blunt, James Taylor, Sting, Aaron Neville, Larry Carlton, Rippingtons, Russ Freeman, Brian Bromberg etc. Hence my search. I'd like to spend no more than $3500 or so. Here is my short list, new and used:

Cary 306/200 (Can't afford the 306SACD)
Cary 303/300
Audio Research CD3 MKII
BAT VK-D5 0r VK-D5SE
Resolution Opus 21
Rega Saturn
Dare I consider the new Shanling CD-T1500 or Raysonic CD128

My System:
Audio Research Vsi55 Tube Integrated
Proac Response 3.5 Floor standing Speakers
BlueNote Koala Tube CD Player (Sovtek 6922's)
Acoustic Zen Satori Shotgun Speaker cables
Acoustic Zen Silver Ref II IC
Running Springs JACO Power Conditioner
Wireworld Silver Electra 5/2 PC on BlueNote Koala
Black Sand Silver Ref V/Oyaide 046 PC on ARC Integrated
Oyaide XXX AC Wall socket with Carbon fiber Mounting plate
FIM Isoltation roller blocks under components
Dedicated audio Acrylic Cable lifters
128x128groberts3
You say your Koala sounds very forward with a solid state sound? The Koala in my system sound's the complete opposite, very natural and analogue sounding. I am sure this is more down to system matching though. I have heard the Sibbert as well which sounds a lot more open then the Koala, but has a very similar sound signature. It is a bit of an exaduration when people say the Koala is 95% of the Sibbert, more like 75% if you want a figure. I have now had a lot of modifications on my koala which now out preforms the Sibbert, but it has cost me little less then the cost of a new Sibbert. The results speak for them selves though.
foodfeak - What mods did you have done to your Koala? And what tubes are you using?

I agree that my system may not be as deep or wide as some. The comment about the Koala being forward was based on hearing it on two other exceptional systems that were quite detailed, deep and wide. The Koala was faster and more immediate sounding, although extremely musical and detailed with exceptional lows/mids/highs.

The other systems I heard the Koala on were: BAT VK31SE/BATVK150 amp/Imperium Speakers/Cardas Cabling/BAT VK-D5 CD Player for comparison

The other system consisted of Manley 250 Monoblocks,Hovland HP100 Preamp/Revel Gem Speakers/Dual Rel Storm Subs, Nordost cables/Isotek Power Conditioner. The comparitive CD Player was a Lector CDT-7. Very nice, musical sounding player.

The Interesting thing was that before we compared, we played the Bluenote on The Manley/Hovland System and the owner said he thought the Bluenote sounded like his Lector. It was very musical. But in comparison, the Lector resolved more detail, had better air and harmonics on acoustic guitar were much more natural and present.
I had the output stage rebuilt by Croft who also built my amps, so every thing really integrates well, all components were matched by ear with my amps. (FWIW Croft use a modified Koala in their reference system for amp builds and development). Tubes are a matched pair of "CCa Siemes Halske 6922 1960 Gray plates". Has Trichord's clock 4 and a Never Connected Power Supply. Main power supply rebuilt. New Op-amps on DAC board. DAC has been shielded. I use a Townshend Seismic Sink to get the sort of isolation that the Sibbert gets. Does sound real special, it has a very convincing sound that's natural open and balanced and as real as you could hope for on digital. As said my amps are Croft which would cost in the region of $14000. Speakers Art stilettos.
Foodfeak,
Could you give me your thoughts about the Stibbert. I have been thinking about getting one. Are they more row one or mid hall sounding? What I have been told is that they are a bit on the warm side but sound very organic. Is this your opinoina also? Bob