What's the weak link in my system?


     I've pieced together the best budget system I could afford over the years but I'm just not thrilled with the sound I'm getting. Can anyone help me identify the weakest link (s) in my system so I can upgrade? I only have the budget to upgrade one piece at this time. I'm most interested in listening to vinyl.
Currently Configured:

Pro-ject Genie 1.3 Turntable w/ Sumiko Pearl Cartridge
Bellari VP 130 Phono Pre w/ Tung-Sol Tube & Replaced Power Supply  
Marantz CD 6006 CD Player
Parasound P3 Stereo Preamp
Parasound A23 Power Amp
PSB T6 Platinum Speakers
Bluesound Node
AKG K702 Headphones
Audioquest Daimondback Interconnects
Audioquest Rocket 33 Speaker Wire

Also Have:
NAD C235BEE Integrated AMP
Monitor Silver RS6 Speakers
Marantz SA8260 SACD Player (Used to sound great but doesn't work consistently - not sure if worth having repaired)
Musical Fidelity V Can Headphone Amp


So.... I think I have put together the best possible system configuration using what I have. What would be the weakest link / first to upgrade? Turntable? Phono Pre? Pre-Amp? Suggestions of products to upgrade to without breaking the bank? I've accumulated a bunch of stuff but I'm really a novice so any and all feedback would be greatly appreciated!   

jdm11
many variables and not enough info. how big of a room do you have? room treatment? speakers/listening chair using the 1/3 ratio for positioning?
if the room and system is setup, i'm assuming you asking what is your weak link because you want to replace the equipment, if this is correct, how much do you want to spend?

IMO, sorry to say, but both your analog and digital equipment are your weakest links. For digital, ALL cd players under few thousands of $$$ sound terrible unless they are specifically built with a very good quality dac, even the oppo is compromised compared to a decent cd player/music server/mac mini with a nice external dac. I used to own a really nice wyred 4 sound dac2 dsd dac which was < $2000, but when I spent 3x that for my new dac, performance increased accordingly. I would suggest at 1st using your cd player and buy a very good dac with the best digital cable you can afford.

I don't agree with previous comments about analog sounding compressed, just the opposite if you get a nice analog setup. But there is a price you have to spend to get great sound from analog, its not cheap. I spent almost 3x more for my analog setup than my digital setup and when the vinyl album is mastered well, it sounds better than straight redbook digital. DSD/MQA sound as good as good analog but it costs more to get this capability from your digital setup. This would entail getting a music server or pc/mac server setup to stream MQA or read DSD ripped music.
IMO, you will need to spend many times the cost of your digital setup to get equivalent sound quality from analog. A $300 cartridge, $100 tonearm isn't going to cut it. You will need to replace all of your analog not just 1 piece. If you replace just the tt, what about the arm? cartridge? you can put a $300 cartridge on a $50,000 turntable and it will still sound like a $300 analog setup. If you start with the cartridge, you are limited with the tonearm you are using, so you won't be able to get a GOOD cartridge. you could spend the $$$ and get a good tonearm and cartridge and use your existing tt base/platter, but you are limited what type of arm will fit your tt. If on a tight budget, look at the vpi scout or vpi prime. You can get a nice ortofon/soundsmith/grado cartridge that you can afford and still have room to upgrade the cartridge at a later time, these turntable packages are that good. I just upgraded to the VPI 3d arm for almost $3000 and it was a large improvement over the vpi metal arm i was using prior, so every little piece can make a big difference.
You can get a used external dac with dsd/mqa and even with a music server capabilities built in used for a couple thousand $$$.
Same goes for a used VPI setup. The grado sonata cartridge is a nice entry level piece for around $500-$600, or a soundsmith zephyr or carmen cartridge for the $$$ are excellent. 
Good luck.
You scare the man with big $$$, though I know what you are talking about. I'll just say what I have. Some will think it is all junk, though in fact it is not, it sounds very acceptable with enough room for improvement. Everything except the cartridge was bought used:
Nottingham Analogue Spacedeck/Spacearm - $1350.
Goldring 1042 MM cartridge - $375 from the UK.
Acoustech PH-1 phono stage - $650.
Purist Audio Colossus cable from phono to integrated amp - $330.
This set-up is hard to find used but I took my time.
lots off good suggestions here but one that seems to be missing is your phono stage the Bellari is good for a starter system but from what I've heard lacks quite a bit. you should take the next step up there something like the IFI Iphono2 ($499)or similar will give you much improvement and more flexibility.  if your budget allows think along the lines of a used Manely Chinook. I have not heard your Cart but maybe a entry MC would liven things up there are some good ones under $500 like many of the Audio-technica's.
Since you enjoy spinning vinyl and have a good collection, upgrade your TT and cart. You can do much better than the entry-level Project, for starters, it doesn’t seem to have much vibration control. You need a solid platform or base (plinth) to isolate the rig from vibration in the room and from the TT itself. Some TT's use a suspension system, some use a solid base with bracing and damping.

In the mean time, I agree that you need to set up your speakers and the room correctly. If music sounds congested, the speakers are not positioned well and you could use some absorbtion or diffusion on the wall behind the speakers. This will result in a more focused image.
Look thru the Virtual Systems section at how our members place their room treatments. Also read thru the GIK site for info...and you don’t have to use every panel they suggest. Also, you can make your own panels.

http://www.gikacoustics.com/basics-room-setup-acoustic-panels-bass-traps/