PPI A600 or Earthquake PHD2? Which for two 12" in your opinion?? - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 29th September 2007, 04:14 AM   #1
ppia600 is offline ppia600  United States
diyAudio Member
 
Join Date: Jun 2007
Location: Louis y ana
Default PPI A600 or Earthquake PHD2? Which for two 12" in your opinion??

I've currently got two amps to run my subs and I only need one. I previously had the last series PHD2 running them and after earthquake repaired it the power seems to fluctuate. I saw a ppi "pro mos 50" in an art 600 shell (guts are an a600.2) on ebay and I couldn't resist since I'd never heard of a 2 ohm mono stable art model in that configuration. After remembering the lame rca jacks ppi used (way too small) that allow the rca cables to become loose and loose contact easily, I squeezed the rca cable ends and now the amp is consistently getting both channel signals and running strong. It sounds great, but definately can't hang with the phD2 for damping and raw power. When I first got the phD2 it seemed to always be out of phase with my high amplifier and always stood out, not just because of power level because I adjusted it as closely as I could. The art amp seems to be more in time or phase with the other art 600.2 I'm running my mids/highs on.
Its a tough decision because I haven't gotten off my lazy **** and done any checking on the phd2 (scared to fry it) and I like the idea of having two matching sized art amps. I've also heard class "d" amps suck for sq, blah,blah,blah.. but I've heard many systems (home and car) with class "d" and they sound great IMO.
If you had the choice to run either of the two (assuming they would be working in perfect condition), which would you choose? Is there a difference in sq/spl that makes one more favorable over the other?

__________________
Don't worry... you can always turn the gain down!
  Reply With Quote
Old 1st October 2007, 04:23 AM   #2
ppia600 is offline ppia600  United States
diyAudio Member
 
Join Date: Jun 2007
Location: Louis y ana
(insert sound of crickets chirping here)
__________________
Don't worry... you can always turn the gain down!
  Reply With Quote
Old 1st October 2007, 08:16 AM   #3
diyAudio Member
 
Join Date: Mar 2007
Location: Columbus, Ohio ^
I think I heard those crickets chirping too!

I wish I could give you a good answer to your questions; however, I have never had the opportunity to hear an Earthquake or a PPI amplifier so I cannot share any personnel experience with them. The only chances I get to hear any amps are if I get a broken one then repair it.

As for your question: I guess it all depends on which amp you like the sound of most, the high power from the Earthquake or the easy blending of the PPI? I myself like high power amps most of all as I am really into high SPL, so the Earthquake may be my personal choice, though I do like nice sound for all around listening for SQ applications and the PPI may be better suited for that since you say it seems to blend or phase better. Again it just depends on what you like best. I wonder why you canít get the Earthquake in phase like the PPI.

I know amps can definitely sound different, as is why I say it is personal preference. Example: I like the sound of Bipolar outputs (if I have that correct) rather then FETS for highs / full range speakers, but for bass / subwoofers either will do as long as it has more than enough power to drive the load. I have a Rockford Fosgate 800a2 with FET output transistors and I also have a Coustic 600SE with Triple Darlington outputs, and I must say I prefer the sound of the Coustic for full range speakers & the 800a2 for subs. Don't get me wrong, the 800a2 is a very nice sounding amp and I love it, but I prefer the clarity of the Coustic on full range. The 800a2 puts out a bit more power, but the Coustic is still pretty powerful as well.

I know Rockford Fosgate and Coustic are completely different brands than you stated as well as my example, I was just showing personal preferences, and it really comes down to what type of sound your looking for out of the amp & which one meets your needs most. Maybe some knowledgeable people will chime in with some good reasons to choose one amp over the other.

Very nice amps by the way, I really like the look of that PPI ''PRO MOS 50'', looks well built too! I seen pictures of the PH-D2 on the ampguts site, looks nice as well. To sum it up as to what amp I would use out of the two? If the Earthquake does infact put out more power then the PPI, I would probably use the Earthquake. But thatís just me! Take Care!
  Reply With Quote
Old 1st October 2007, 04:20 PM   #4
ppia600 is offline ppia600  United States
diyAudio Member
 
Join Date: Jun 2007
Location: Louis y ana
Thanks for your opinion. I'd really thought more people on here had experience with these amps....
__________________
Don't worry... you can always turn the gain down!
  Reply With Quote
Old 1st October 2007, 09:57 PM   #5
spooney is offline spooney  United States
diyAudio Member
 
Join Date: Dec 2006
it ultimately depends on what you want. If sound q is of utmost importance then go ppi all the way but theres no way that the ppi can come close to the output of the phd2 and in my opinion the phd2 doesn't really sound terrible.It just needs to be tweaked like anything else.with the right EQ and enclosure that earthquake will sound fine. That being said I would run the PPI just because i've always wanted an a600 and i know that it has plenty of output for my taste.
  Reply With Quote
Old 7th September 2008, 04:45 PM   #6
ppia600 is offline ppia600  United States
diyAudio Member
 
Join Date: Jun 2007
Location: Louis y ana
I'm going to put the pro mos 50 up on ebay, trying to raise some $ and the earthquake is just too powerful and compact to be going to waste in my closet.
__________________
Don't worry... you can always turn the gain down!
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Earthquake PHD2 seems to lower output??? ppia600 Car Audio 94 14th November 2011 08:46 PM
Need your opinion, how small gain can I use with LM3886 (how close to "flat amp")? danielwritesbac Chip Amps 20 30th November 2008 01:27 AM
FS: CSS WR125S 4.5" Mids, Earthquake 32 Band EQ its_bacon12 Swap Meet 2 14th February 2008 05:26 PM
opinion about this "tb" tweeter hobby1 Multi-Way 4 2nd June 2005 03:29 PM


New To Site? Need Help?

All times are GMT. The time now is 07:09 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2