This is strictly a 2 channel use, mostly vinyl setup using a Jolida JD9 phono stage. The speakers are Ported Statements (4 ohms). I'm looking at either Parasound or Mucisal Fidelity at this point and trying to keep it in the $500 and under neighborhood. The models I'm looking at are the Parasound HCA1500A and the new classic 2250. The MF amplifiers I'm looking at are the M1PWR and the A3CR. The only new amp would be the M1PWR, the others are used. Anyone have experience with these amplifiers or have any sugestions?