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PPX900 or better?

Printed From: Speakerplans.com
Category: General
Forum Name: Amp Forum
Forum Description: The 'Stopping Jake Fielder moaning constantly' forum description...
URL: https://forum.speakerplans.com/forum_posts.asp?TID=108940
Printed Date: 27 March 2026 at 4:05am
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Topic: PPX900 or better?
Posted By: scott_fury
Subject: PPX900 or better?
Date Posted: 08 February 2025 at 10:17pm
Hey everyone,

I have a 4-way setup and I have been using a Citronic PPX900 for my mids, powering two Fane Sovereign 12-250TC drivers in sealed cabs, in stereo at 8ohm. It was built primarily as a 80's reggae sound system, but it tends to have everything from D&B to house played through it. The clarity of the mids are really important to me, and I have a fondness for old mos-fet amps, etc.

I absolutely love the sound of these Fane TC drivers and the PPX so have been happy with the setup, but the A channel has just stopped working. I do have another 900 but that has a slight issue on the B channel! 

I have been using nothing but old Citronic amps up until recently, when I swapped out my PPX1600 for a Peavey CS1200X to do both my scoops and kicks. I have a PPX1200 that I could use instead of the 900 but it is a load heavier than the 900, and what with CS1000X my back has some work to do as it is. Also, I would like to get the 900's fixed as they are no use to me with one channel down.

Anyway, my question is whether there's something that may be better than the 900 that I don't realise? 

I'm not familiar with all the amps, but have heard mention of HH M900, C-Audio SR606 and Matrix 2U1200 to name a couple.

Would be great to hear anyone's thoughts on this.
Thanks, Scott.





Replies:
Posted By: simonp1100
Date Posted: 09 February 2025 at 7:59am
Try C-Audio ,i used a  few SR 707's on bass and had a few RA-3001 & RA-4001 on mid high's sounded sweet. Clap


Posted By: Earplug
Date Posted: 09 February 2025 at 9:07am
Or Matrix? I think that they are also MOSFET.




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Earplugs Are For Wimps!


Posted By: Andylaser
Date Posted: 09 February 2025 at 1:12pm
Theres a pretty tidy PPX900 on ebay at the minute. I would grab that then get the others fixed. Great amps and will just keep going if looked after.

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"music so loud, that if we move in next door to you; your lawn will die" - Lemmy


Posted By: scott_fury
Date Posted: 09 February 2025 at 2:20pm
Originally posted by simonp1100 simonp1100 wrote:

Try C-Audio ,i used a  few SR 707's on bass and had a few RA-3001 & RA-4001 on mid high's sounded sweet. Clap
Thanks for the reply Simon. I was looking at the SR707 as a replacement for the PPX1600. Thought that the 606 may be a better substitute for the 900. And heard you can mod it to be a 707 if it has the right transformer. I have a saved search on ebay, but not had one turn up that wasn't a massive distance to travel.


Posted By: scott_fury
Date Posted: 09 February 2025 at 2:22pm
Originally posted by Earplug Earplug wrote:

Or Matrix? I think that they are also MOSFET.



I have seen a Matrix on ebay. It looks a bit battered, but the specs are okay. Think 350W at 8 ohm, which I guess would be a bit more powerful than the PPX900 but still not too much for the 250W drivers. Just not heard anything about the sound quality. Would be interested to know what people thought of them?


Posted By: scott_fury
Date Posted: 09 February 2025 at 2:24pm
Thanks for the reply. I have seen it, but it's a bit of travel for me. Would mean a day off work and fuel to travel to Leicester and back. Ends up being quite expensive.

Think I could use the 1200 as a temp amp whilst I get the 900 fixed. Prefer the sound of the 900's over the 1200 on the mids for some reason though.


Posted By: Earplug
Date Posted: 09 February 2025 at 3:49pm
Originally posted by scott_fury scott_fury wrote:

Originally posted by Earplug Earplug wrote:

Or Matrix? I think that they are also MOSFET.



I have seen a Matrix on ebay. It looks a bit battered, but the specs are okay. Think 350W at 8 ohm, which I guess would be a bit more powerful than the PPX900 but still not too much for the 250W drivers. Just not heard anything about the sound quality. Would be interested to know what people thought of them?


Having a bit more power in the boot should not be a problem, as long as you use you ears - and don't push the amp into clip.

I've never used a Matrix, but they do seem to have a good rep - and relatively easy to service/fix.   Smile




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Earplugs Are For Wimps!


Posted By: midas
Date Posted: 12 February 2025 at 7:04pm
Where abouts are you. I have a PPX900 in a rack not doing anything.

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In bass no one can hear you scream!


Posted By: scott_fury
Date Posted: 15 February 2025 at 5:24pm
Originally posted by midas midas wrote:

Where abouts are you. I have a PPX900 in a rack not doing anything.

Hey thanks Midas, I’m in Bristol but you look quite a distance from me?


Posted By: simonp1100
Date Posted: 15 February 2025 at 6:56pm
PM Sent.


Posted By: EmPro
Date Posted: 08 March 2025 at 2:01pm
PPX900 needs proper restoration these days...very old amplifiers,you need to spend a full day tu fully restore to his glory a PPX900 and after that you're sorted for another 30+ years....also the best Sounding Mosfet Amplifiers are by far HH M900-V800 compared to: Citronic PPX series,C Audio SR,ST,TA series,Avitec Beta Series,Matrix UKP,2U,STR series,Even old RSD Studiomaster Mosfet series,i own dozens of Mosfet lateral Amplifiers,including ASHLY FET2000m series,BK Electronics MXF Series etc,but the sound of my M900's is the one that i have nothing better to compare with.

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EmPro Audio


Posted By: knet94
Date Posted: 08 March 2025 at 5:57pm
Originally posted by EmPro EmPro wrote:

PPX900 needs proper restoration these days...very old amplifiers,you need to spend a full day tu fully restore to his glory a PPX900 and after that you're sorted for another 30+ years....also the best Sounding Mosfet Amplifiers are by far HH M900-V800 compared to: Citronic PPX series,C Audio SR,ST,TA series,Avitec Beta Series,Matrix UKP,2U,STR series,Even old RSD Studiomaster Mosfet series,i own dozens of Mosfet lateral Amplifiers,including ASHLY FET2000m series,BK Electronics MXF Series etc,but the sound of my M900's is the one that i have nothing better to compare with.

Definitely agree with your opinion of the HH M900/V800. Many years ago I bought a PPX900 and was disappointed when I compared it to the V800. Moved it along fairly quickly.


Posted By: EmPro
Date Posted: 09 March 2025 at 2:03pm
I cannot say PPX series sounds bad,not at all,but not as good as  HH V800 or M900,i still have PPX 900 and PPX 450,i love them,proper good amplifiers,and quite easy to work on....can't say that about HH V800 or M900 when is time to service them LOL

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EmPro Audio



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