Upgrade speaker cables OR amp for Dynaudio C4's?


I have approx. $1500 to play with. Not sure if I will get more bang for my buck by upgrading my amp (Plinius SA-102, class A 125 WPC) , or my speaker cables (Harmonic Technology Pro 9's)

The rest of my system consists of:
- Speakers: Dynaudio C4's
- Preamp: Aesthetix Calypso with NOS tubes
- Source: Audio Aero Capitol MK 1 CDP

Amps being considered:
- Pass X250.5
- Moscode 401
- Parasound JC-1's

Speaker cables being considered:
- Kimber KS-3033
- Stealth Hybrid MLT

I'm happy with my Plinius amp... I just wonder if I'm missing something by not feeding my Dyn's with more power. I listen at moderate levels... mostly classical, jazz, female vocals, acoustic rock.
128x128pdreher
Missioncoonery is correct. As I said, if power is an issue I would go high power SS then tweak the cables.
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Pdreher..I know that Tvad is possibly right because he has a better understanding on the tech side of things than I do but Ive never had any issues with impedence matching with any gear Ive ever owned over the past 30 years...Take that preamp of yours and audition with Pass...My preamp im sure didnt match impedence wise with the Pass amp I sold and it sounded great... Just my opinion..let us know what you do and enjoy.
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I'm clueless when it comes to impedance matching... I know... pretty pathetic :( . I assumed there was no mismatch at the time I went with this combo based upon this older link... http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1196031341&read&keyw&zzcalypso+plinius