If your budget is 2k you have lots of options. You didn't mention your speakers or amp, so I'll assume if 2 channel is your priority then you have full range speakers or great monitors with a sub. In terms of new, you have the Marantz ($1600) and Integra (at just over your budget at $2,600). The benefit of both is that you get 2 channel and room correction that is very good. I personally am not a Rotel fan. Good value overall but I don't like the sound and no room correction. This I feel that the Marantz is the best value in its class.
If you choose to go used, then yes you could get a "higher end" brand but I'm not quite sure what your goals are. What are your sources? If your sources are digital then the DAC in the unit make a difference. If you are using the DACs in the source then that is less of a priority. Example: A Parasound used is fantastic value but also analog only. The Anthem units have great overall quality from the DAC to room correction to output and offer separate settings and cross over for music and movies. You can have one set of settings for your CD player and another for for your BluRay.
There are also some older Lexicon preamps that have hit the market.
I cannot emphasize enough not to buy for brand or price but for your ears. If you can demo units at a dealer then do that. If you can't go new see
What they have used or as demo units. That way you also support your local dealer. Finally, the preamp is part of the sum of your system. I suggest you think about it in light of your speakers and amp and try and match that up with what appeals to your ears. Remember it is all about what your tastes are and what you like.
But before closing I cannot over emphasize the difference quality room correction makes!!!
If you choose to go used, then yes you could get a "higher end" brand but I'm not quite sure what your goals are. What are your sources? If your sources are digital then the DAC in the unit make a difference. If you are using the DACs in the source then that is less of a priority. Example: A Parasound used is fantastic value but also analog only. The Anthem units have great overall quality from the DAC to room correction to output and offer separate settings and cross over for music and movies. You can have one set of settings for your CD player and another for for your BluRay.
There are also some older Lexicon preamps that have hit the market.
I cannot emphasize enough not to buy for brand or price but for your ears. If you can demo units at a dealer then do that. If you can't go new see
What they have used or as demo units. That way you also support your local dealer. Finally, the preamp is part of the sum of your system. I suggest you think about it in light of your speakers and amp and try and match that up with what appeals to your ears. Remember it is all about what your tastes are and what you like.
But before closing I cannot over emphasize the difference quality room correction makes!!!