Help choose best amp/preamp combo?


Hi there
I am new to audio forum.Helo every one here can help me.I do build a 2 channel stereo with JBL sub.here is my system :Parasound a21 amp + Emotiva xsp1(gen 2)+ pair of B&W 805 Nautilus.To be honest, I do loved the sound system very clear and crisp on high and midrange with powerful bass tights.but it is LACKing of Warm sound.I do loved the warm sound is top priority.couple months ago I do have Rotel 1095 amp pair with Rotel rsp1570 + b&w cdm1 Nt sound is clear crisp and WARMER but sound is THIN compare to Parasound.but Rotel sound is warm which I like much.I also heard that Parasound a21 is warm sound too.but in my taste it is not.my question is the amp do produce a warm sound or Pre-amp produce a warm sound or the speaker do make the sound warm?I am confused and I want change my system to Rotel rb1582mk2 + Rotel rc1580 pre-amp because I heard that B&W speaker and Rotel is relate to each other and their product is matching together in sound.especially BW speakers is sound good with Rotel amp.is this true.and how you guy advised me to keep Parasound a21 and changing Pre-amp to either Parasound P5 or Rotel rc1580? Or go full system with Rotel like Rotel rb1582mk2 + Rotel rc1580?I am confused now and need your help.Thank You in advance.
luckyrainbow63

Showing 6 responses by auxinput

I will also vote for a new preamp.  Many people suggested tube.  I would suggest looking at a Class A preamp (Krell or maybe Pass Labs, maybe even Parasound JC2).  The FET preamps may have more of a lush sound then the bipolar Krell stuff (which is typically more clean sounding).  All of it should be tight and crisp, but would give you a lot more warmth and body then the Emotiva XSP.   Tube may be good here too (also McIntosh), but the tube or mac stuff may be too slow if you like crisp sound.
Hi luckyrainbow.  I have the B&W 805 Diamonds and they are excellent.  They are very warm and full bodied.  Also, a lot of bass for such a small speaker!

I would be interested to see what you think of the Rotel rb1582.  The Rotel equipment is like an Emotiva that has higher quality components (capacitors, op amps, etc.). I suspect that the Parasound A21 is going to sound warmer then the Rotel because the FET input stage is fully Class A and the output stag is biased into Class A for the first 8 watts.  The Rotel is only Class AB.  THe Parasound also has bigger power supply.
The "record out" on the JC2 is not meant to be a normal preamp output.  It is outputting the signal at full level.  There is no "volume" adjustment for this.  The "record out" is meant to be used by a recording device (like tape recorder).  I missed the fact that you are using a JBL sub.  You will probably have to buy a "y splitter cable" so that you can use the same output on the JC2 for both the sub and the A21 amp.  It's best to get an XLR splitter cable, and then get an XLR-to-RCA cable for the sub.
No.  Do not use the "Record Out'.  Only use the "Main Outputs".  I took a look at the manual and it looks like there are 2 Main Outputs.  One XLR and one RCA.  You should be able to use both.  XLR for the amp and RCA for the sub. 
luckyrainbow - hopefully you have resolved the volume issue with the sub.  Have you had a chance to form an opinion on the Parasound JC2?