[3210]

Seems that the SRM252 amp hasn't got the strongest power supply
(guess that's mainly because of the internal high voltage generation circuit)
so it should work better with the less demanding earspeakers, or?
 
In comparison with the SR202 (120pF incl. cable and 132kOhm at 10kHz)
the SR007 has 94pF and 170kOhm and the SR003 just 44pF and 360kOhm.

 

[3210]

come in, come in, come in * come in,
come in, * come in, come in, come in
* come inside
 
(Marilyn Manson, The High End Of Low
 

 

[borizm]

I didn't observed that less demanding earspeakers helps Stax SRM-252A sounds better. With SR-003, SR-Gamma Pro, and SR-007 MK1 this amp sounds the same bad (irritating, harsh, without air, without clearness, and without details).