Interesting

Is this amp OK?
Post Reply
Message
Author
tcorder
Posts: 115
Joined: Sun Mar 01, 2009 7:02 pm

Interesting

#1 Post by tcorder »

Just found this, http://www.abeltronics.co.uk/amptesting.php, I thought it was interesting and thought that others might too.
Top
Chris Betancourt
Posts: 397
Joined: Fri Aug 08, 2008 2:44 pm
Location: Levittown Puerto Rico

Re: Interesting

#2 Post by Chris Betancourt »

Very interesting indeed!!!!!
Christopher Betancourt
Authorized Builder
Puerto Rico
Built:
4xTitan 39-3012LF, 2xWedgehorn 8, 4xOT12, 8xOT12J on the works.
All running w/SAC or DL1606
On the table:
too much work!! LOL
Future:
It's a secret for now. Shhhh....
Top
User avatar
Haysus
Posts: 522
Joined: Fri Oct 03, 2008 11:06 am
Location: St.Louis, MO

Re: Interesting

#3 Post by Haysus »

Good find. I have done a little reading on amp technology and have trouble grasping all the tech jargan but that site really helps explain the magic.

I am starting to notice some strange anomalies with my tops when pushing the volume and now I'm starting to see why. Fortunately knowing the problem helps finding a solution.

4 20" T39(built)
2 WH8(built)
3 WH10(own)
4 DR200(own)
1 Jack 12(built)
SAC 24 Channel Mixer
SAW STUDIO Recording
Top
el_ingeniero
Posts: 931
Joined: Sun Jul 18, 2010 11:46 pm
Location: Minneapolis, MN

Re: Interesting

#4 Post by el_ingeniero »

Have you noticed something strange with the HF output on the Xti tests? The 1000 is normal, but the HF output on the 4000 is down 50% compared to the 1000. I think they had a broken amp on their hands.
Top
User avatar
netwerks
Posts: 768
Joined: Fri Nov 20, 2009 4:58 pm
Location: Chicago, Ilinois
Contact:
Contact netwerks

Re: Interesting

#5 Post by netwerks »

Yeah a great testing environment.

http://www.abeltronics.co.uk/amptesting ... maican_amp

Gimme a break...
Top
User avatar
Haysus
Posts: 522
Joined: Fri Oct 03, 2008 11:06 am
Location: St.Louis, MO

Re: Interesting

#6 Post by Haysus »

I have run my tops on the xti2000 and xti4000. The 2000 has some high frequency weirdness from 1k and up when I push hard. It gets really hot between 1k-3k but the clarity seems to disappear. Not so much as a distortion but a phase issue. Lucky for me that I have a phase reverse switch on every channel. But that is only a band aid for the problem.

The QSC line up is looking interesting.

The 4000 didn't get pushed hard enough for me to notice the same issue but way overkill.

4 20" T39(built)
2 WH8(built)
3 WH10(own)
4 DR200(own)
1 Jack 12(built)
SAC 24 Channel Mixer
SAW STUDIO Recording
Top
88h88
Posts: 1603
Joined: Mon Jul 04, 2011 10:20 am
Location: Coventry, UK

Re: Interesting

#7 Post by 88h88 »

netwerks wrote:Yeah a great testing environment.

http://www.abeltronics.co.uk/amptesting ... maican_amp

Gimme a break...
That's the kinda homebrew stuff that gets thrown together for Caribbean street parties and such, you can see an awful lot of 'made in the shed' monstrosities at those things, it's awesome.
4xOT12s, 2xT39s@22", TTLS@18", 2xT60@18"
Top
UROK

Re: Interesting

#8 Post by UROK »

Yes, aye!

Scoop bins made out of wardrobes and heavy iron! That was 1970s/early 80s DIY PA.

Just what I was used to before I found BFD! Heavy distortion.

Check these (scroll down to see blue-colored Annihilator amps):

http://www.jtsstudio.co.uk/pages/amps.htm

Only £1500-3000 each! :shock:

Even those guys set up all wrong splitting subs and lining up a wall of tops side by side :roll: :wall:

Thanks and praise to Bill and everyone for opening my eyes. :clap:

JAH! Rastafari!!

Anyone playing roots reggae and dub through Bill's designs? I am really looking foward to hearing the diff btwn directs plus mid and high tops compared to DRs and tubas. (I know R&D doesn't need the extension but I have a lot of techno vinyl which does.)
Top
Post Reply

Return to “Amps”