Help LP playback is lacking

I also have the Aries, JM 10 in and the original ruby2 which has a lower output than yours. I use the ARC PH3se phono preamp and get a full frequency response and a quality sound. My cables are Tara Decades which are a little briter than my old arc litzlink I used to use but this is merely a tweek, so I would demo a different phono preamp before monkeying around with cables. I also use an isolation sandbox and a low resonance type table to rest the aires on, both will help. How far away from those dunlavys is your aries? The resonance will kill your sound! This type of stuff all makes a difference. Remember that vinyl may sound better, sweeter etc but I think that you will never get as much "slam" from a disk vs a cd. Also there are major variations in recording qualities on records, so test using a great recording and enjoy!.

Lower your V.T.A. a bit towards the pivot point and see what happens.

I also have the Aries, JMW 10 tonearm,but the CAT Mark 111 Pre-amp with phono. I don't believe you can find a better stand alone phono preamp than the CAT's phono section for less than 5000.00. I would look at the cartridge, I am using a Grado Reference High Output and it's an excellent match with the table,arm and CAT. It has a full dynamnic sound with adequate bass in my system. I agree that a change in phono cables probably would only make a limited improvement. Good luck, you have a quality system.