Upgrade


Hello,
I own the below system and I am looking for an improvement by upgrading one of the components (budget $2000-3000).

-Graham Audio LS5/8 (large BBC studio monitor speakers)
-Analysis Plus Oval 9 speaker cables
-Mark Levinson ML 23.5 power amp (completely recapped by Madrigal technician)
-Audio Research LS 5 MKII preamp (restored and new tubes)
-VPI Prime turntable with -Dynavector 20x2 H cartridge
-Parasound JC3+ phonostage

Quite standard power cords and interconnects, no power conditioner.

What change would make a significant difference? Larger soundstage, more liquid, open sound without loosing the dynamic punch?

Thank you for your time and I would appreciate any ideas.
bms72
Raven Audio is awesome and I have the CeLest towers and use all Raven Cables, power, speaker and interconnects, top shelf gear for a reasonable price.

I am a Simaudio guy and have the Moon 390 pre and 330A power amp. Just awesome gear and a big wide liquid sound stage. 

Though I am going to give the Raven Blackhawk a shot in a smaller system in my house, with their 45 day return policy why not?
Instead of buying one expensive sub, You might want to consider a DBA swarm.  AudioKinesis has a well-regarded all-in-one "kit" for $3200, or you can DIY from separates.   http://www.audiokinesis.com/the-swarm-subwoofer-system-1.html