PPI PCX-1250 confusion...

 

Bronze Member
Username: Minime80

Post Number: 65
Registered: Feb-05
Okay, so the UPS guy just dropped this thing off, and I'm looking at it and wondering why it has outputs for 2 speakers (+ and - for both) when it's supposed to be a mono amp.
 

Gold Member
Username: Carguy

Post Number: 1811
Registered: Nov-04
That's there so you can connect 2 subs. It is a great amp. Just remember, you bought one of the amp series that's disappearing fast. PPI's current lines aren't worth buying.
 

Gold Member
Username: Carguy

Post Number: 1812
Registered: Nov-04
Don't go lower than 2ohms.
 

Bronze Member
Username: Minime80

Post Number: 66
Registered: Feb-05
So, does it matter which set of outputs I use if I'm just hooking it to 1 sub?
 

Gold Member
Username: Carguy

Post Number: 1814
Registered: Nov-04
No but make sure your sub is not less than 2 ohms.
 

Silver Member
Username: Tdbdrummer

Post Number: 243
Registered: Feb-05
Yes, becuase the left and right of the channel are wired in parallel and converted to a mono signal, so no matter what, you will always have half the ohm load when using 2 subs. That goes for any receiver/amplifier that runs an A and B OR EVEN a C output.
 

Bronze Member
Username: Minime80

Post Number: 67
Registered: Feb-05
Okay Isaac, I know, I've handled that already (1 DVC sub, 4 ohm coils in parallel). If I had wanted to just waste my money there's much better things I would've spent it on.
 

Silver Member
Username: Fishy

Tamarac, FL USA

Post Number: 612
Registered: Sep-04
huh?

There's not really two separate sets of outputs on that amp. Each positive is common to the other positive. Likewise with the negatives. Just imagine two hunks of metal, one positive, one negative, with two places to attach a speaker wire. Attaching a speaker to each "output" is the same as attaching two speakers in parallel to one output.

-Fishy
 

Bronze Member
Username: Minime80

Post Number: 68
Registered: Feb-05
Makes sense to me! :-)
 

Gold Member
Username: Carguy

Post Number: 1817
Registered: Nov-04
Man that Jonathan guy loves to step on people's toes. I had to reply back to his lengthy posts... :-)
 

Gold Member
Username: Invain

Michigan United States

Post Number: 1534
Registered: Aug-04
Jesus, how long did that reply take to think up?
 

Gold Member
Username: Carguy

Post Number: 1821
Registered: Nov-04
Not much. Just let my fingers do the talking. :-)
 

Bronze Member
Username: Minime80

Post Number: 69
Registered: Feb-05
Ha, I do that when I'm driving sometimes... really pisses people off.
 

Silver Member
Username: Tdbdrummer

Post Number: 244
Registered: Feb-05
I dunno, it makes your mom happy all night!
 

Bronze Member
Username: Minime80

Post Number: 70
Registered: Feb-05
Oh God! A "yer mom" response. I love it. I haven't heard one of those since the early 90's. Good stuff guys... keep 'em comin'
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