GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.

Post Subject: Thank youPosted by Petrasescu_Lucian on: 7/16/2009

Thank you Romy, I wasn't aware of the 30 day trial...I though only PS Audio had this policy with power regenerators...

The 25% load is a nice tip, thanks again, I trust you judged this value according to personal tests and measurements. The sad news is that for the moment I can't afford the 1050 so the 700 model will be the one. No problem, I can test this model on another Class A amp which has a current draw of aprox 100W. If the results are promising I'll buy a bigger model for the big system. The thing is I have to decide if APS power regenerators are really worthwhile since my past attempts with different PLC's weren't so encouraging...

A small question Romy !

If you were to describe in a few words:

     What didn't you like about the SOUND of your system without the regenerator but was eliminated or improved dramatically with the APS unit in place ?

In my system for instance I generally don't like 2 things:

1. TONALITY
    The presentation of the upper bass and inferior part of the lower midrange (aprox 120-500 Hz). I can hear clearly differences in the tonality of music being played between several moments in a day, in the evening beeing the worst and after 1 a.m. the best. This is apparent both in speakers and in headphones. The sound tends to be either muddy in the bass and the low mids tend to "ring" when I have really bad electricity. I have a scope and I can confirm the sinewave is more like rectangular wave...
    There are some rare occasions when the "presence" of the frequency range (4-6 kHz) is really messed up and the sound tends to be edgy... call it upper mids-low higs harshness if you like

2.  DYNAMICS

   Yes, it's quite hard to believe but I do experience a lack of dynamics in several moments of the day because the sound is very dull (some may call it excessively "polite") and seems to be boring with no involvement in music.

When I have "good" power (it's a relative term) I have the opposite of what I have mentioned above with the most striking part beeing the excelent portrayal of the upper bass and lower midrange frequencies...think the beautiful representation of the harmonics of an acoustic guitar !

Thanks and I hope I haven't bored you to death...

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