Warwick Quadruplet vs Ashdown RPM-1 preamps

Well, I'm the reverse. I've never tried Ashdown but have owned Warwick amps.

The Quadruplet is an insanely flexible preamp, you have the bass, lo mid (+freq shift), high mid (+freq shift), high, lo & high boosts. With the 4 different quadramatrix settings, you alter the underlying frequency curves so you should be able to get a sound to suit any bass you need.

It can be a bit hissy, not noticably for live but it might be an issue when recording.

 

well,

i havent tried the Warwick or RPM, but i've done a bit of research on TB about the RPM. trying to find a nice complement to my cleaner Kern and DB680.

here are some links:

http://www.talkbass.com/forum/showthread.php?s=&threadid=91758&highlight=Ashdown

http://www.talkbass.com/forum/showthread.php?s=&threadid=93025&highlight=Ashdown

short story, it seems like its more a grindy, woolly, edgey kinda preamp capable of some cool furry tones. people make it sound like an Eden or sterioded Ampeg SVT kinda sound.

i'm still really interested in trying one out. try PM'ing Ebozzz, he was pretty jazzed about trying one out.

 

I am the happy Quadruplet owner/user, but never tried Ashdown. There won't be many folks that tried both I think.
So, as far as my experience with Warwick goes (I have it for 1 year aprox.), it is very flexible, can sound SVT-heavy, bassman- wooly and HI-FI and probably everything in between. If you have a good poweramp/speaker system, you should be satisfied. I even play straight to PA. Never had problems with hiss while recorded.
Anyway, good luck!