Hello,
I have 2 x A45 which gives two bridged mono 300W.
The A45 has a Damping Factor 200 while the new A46 has a damping of 500!
This difference is remarkable and change much of how that sound is controlled. The higher the damping, the higher the sound is clear, crips. This increases the 3D. Conversely, the sound is more dry, less vibrato, harmonics and warmth seems a little less emphasized ...
In this sense, in the past, the Krell have damping factor of 50, Bryston 500 and crown microphone 5000 ...
When I put my amps in mono I lost damping factor and this is clearly heard ...
For my taste I prefer the damping around 200, this approach really musical instruments played by my son ... (guitar, drum, etc.)
I think 500 is too high and is more up to the job of mixing where it is important to place the instrument in space, to be surgical what ;-)
Last on the amps ... We never have enough power! At 300W class A mono ... even if I have hp strong effective is incomparable, heavy metal and large choir of Carl Orff never are unstable or short of breath ...
Accuphase make silver cables and the difference (regardless supplier) is important ... For my part I have SCSI 2 VDH connected to JBL studio monitor 4343 (93dB / w) refurbish.
For the preamp. I bought the 2820 because I did not have a phono section apart instead ... too much cable etc ... But I can say that I have an AC 500 and AC PS 1200 and PS WOOW difference. ..
I have no doubt that the PS300 is higher, but for me the monetary bar is too high. If you have the money: let do it !! :-))
I conclude by saying that the room is 50% of the final sound so I totally agree with the comment on the addition of a parametric equalizer. Although it can not eliminate modal node of a room, and a modal cancellation can be corrected. Also, positioning, and treatment are essential ... just to double the bet or rather not to lose half your pleasure ...
My 2 cents.
