Page 1 of 1

The Apex "Senior" Subwoofer Amp

Posted: Fri Jul 16, 2010 4:27 pm
by Mikey
Any comments on this plate amp?

http://www.apexjr.com/Apexsenior.htm

Re: The Apex "Senior" Subwoofer Amp

Posted: Fri Jul 16, 2010 5:06 pm
by Sydney
No hands on...
from examination of schematic and internal photos it appears to be a very basic amp.
Generic parts and implementation
Like a bologna sandwich - nothing fancy; it fills a void
( the reported issues do not encourage )

Syd

Re: The Apex "Senior" Subwoofer Amp

Posted: Sat Jul 17, 2010 3:33 pm
by Mikey
Sydney wrote:No hands on...
from examination of schematic and internal photos it appears to be a very basic amp.
Generic parts and implementation
Like a bologna sandwich - nothing fancy; it fills a void
Compared to a PE plate amp (non-BASH), would you say this one is pretty much similar? Is there something about this one that makes it somewhat inferior or is it just "stadard fare - it is what it is"?
Sydney wrote:( the reported issues do not encourage )
Reported issues? I just searched and didn't find any "common issues" that stand out. What did you find?

Re: The Apex "Senior" Subwoofer Amp

Posted: Sat Jul 17, 2010 5:27 pm
by Sydney
PE plate amp (non-BASH),
I have not seen pics of the "innards" of that amp to compare the 2.
The Apex was designed in 99 so it has a little history.
Mostly in the power supply...
You will notice the mention of an upgrade of the 6800mfd caps from 80 to 100V.
The PS on that amp is underdesigned. The caps are too small and no room to go larger.
It uses a simple bridge rectifier ( no reg ).

The circuit board appears to be the cheapest phenolic, and it uses the cheapest of parts.

Perhaps I expect too much - realistically what can be expected for something at that price point, it may after-all be no better or worse than other amps in that range.

Syd

Re: The Apex "Senior" Subwoofer Amp

Posted: Fri Jul 30, 2010 12:38 pm
by Mikey
Sorry for the late reply. Been REAL busy. Thanks much for the very thorough explaination, Syd!

Hmmm ... I guess my conclusion, then, is that although plate amps are inexpensive, they're generally not a good value.