My new 1000W PA amp (pic post) - Page 3

Matttcattt · 3rd September 2003, 07:15 PM

nice amp

can you post the correct link to your site?

Da5id4Vz · 3rd September 2003, 08:16 PM

Will it the mono-blocks run in bridged mono? Have you thought about how much power you might be able to drive into a 2-ohm sub?

It’s quite a nice amplifier you’ve built there. Light years cosmetically and power wise from the Leach low TIM-3's I helped a friend build for PA use way back when.

BTW, we blew out half our output transistors and a bunch of JBL 2" compression drivers the night before the first gig. I hope you can let yours warm up and proof it in better than we did.

matth · 3rd September 2003, 08:19 PM

Thanks MattCatt,

You may hear it on Friday night, I will be in the Rotunda in Kingswood doing a 18th birthday disco!!
I've removed the link to my website for the moment as there is nothing of interest and its a right mess.

matth · 3rd September 2003, 08:28 PM

Thanks for the comments Da5id4Vz, it will be put on test Friday morning for most of the day (it has already been tested but it needs a burn in). The smaller amp can run mono if the larger one fails so I do have abit of a backup.
The amp is current limited to 16Amps so it will not really run into a 2Ohm load, its been tested to 750Watts into 4Ohm so far. I think if I bridged this amp I would destroy my subs in no time.

Da5id4Vz · 3rd September 2003, 08:38 PM

I suppose you built the subs too...

Whether you did or not, people on this site just don’t stop impressing me. That’s more great looking equipment. What do you use for the mid/hf?

matth · 3rd September 2003, 08:45 PM

Thanks again, I don't have a picture of the finished Tops but this should give you an idea, they are now finished the same as the subs with top-hats and mounting poles:
They contain a motorola compression driver and a Eminence Bata12. Crossed over with the subs at 310Hz. I am setting the whole setup up in the garden on Friday so will post a pic of the entire rig then.

Da5id4Vz · 3rd September 2003, 08:49 PM

Thanks for the pitures. I'll let my envy get ahead of me here a bit and snidly ask if your making TEF measruents with your a DIY TEF analyser too?

Again, very nice thanks for sharing.

matth · 3rd September 2003, 08:55 PM

Ah well you got me with that one.
TEF??

Da5id4Vz · 3rd September 2003, 09:01 PM

Oops, Think I dated myself again. I dont seem to hear too much talk about this stuff these days.

http://www.gold-line.com/tef/tef.htm

matth · 3rd September 2003, 09:06 PM

All looks far to digital to me!!
Mine you it would be nice to have some measurements of this system other than my rather bias view.

3rd September 2003, 07:15 PM	#21
Matttcattt diyAudio Member Join Date: Feb 2003 Location: Bristol	nice amp can you post the correct link to your site? __________________ If it aint broke, don't fix it. If it is broke, fix it. If you can't fix it, take it apart and see how it "worked".

3rd September 2003, 08:16 PM	#22
Da5id4Vz diyAudio Member Join Date: Feb 2003 Location: lost in america...	2 Kw? Will it the mono-blocks run in bridged mono? Have you thought about how much power you might be able to drive into a 2-ohm sub? It’s quite a nice amplifier you’ve built there. Light years cosmetically and power wise from the Leach low TIM-3's I helped a friend build for PA use way back when. BTW, we blew out half our output transistors and a bunch of JBL 2" compression drivers the night before the first gig. I hope you can let yours warm up and proof it in better than we did.

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3rd September 2003, 08:19 PM	#23
matth diyAudio Member Join Date: Jun 2003 Location: Bristol	Thanks MattCatt, You may hear it on Friday night, I will be in the Rotunda in Kingswood doing a 18th birthday disco!! I've removed the link to my website for the moment as there is nothing of interest and its a right mess.

3rd September 2003, 08:38 PM	#25
Da5id4Vz diyAudio Member Join Date: Feb 2003 Location: lost in america...	I suppose you built the subs too... Whether you did or not, people on this site just don’t stop impressing me. That’s more great looking equipment. What do you use for the mid/hf?

3rd September 2003, 08:49 PM	#27
Da5id4Vz diyAudio Member Join Date: Feb 2003 Location: lost in america...	Thanks for the pitures. I'll let my envy get ahead of me here a bit and snidly ask if your making TEF measruents with your a DIY TEF analyser too? Again, very nice thanks for sharing.

3rd September 2003, 08:55 PM	#28
matth diyAudio Member Join Date: Jun 2003 Location: Bristol	Ah well you got me with that one. TEF??

3rd September 2003, 09:01 PM	#29
Da5id4Vz diyAudio Member Join Date: Feb 2003 Location: lost in america...	Oops, Think I dated myself again. I dont seem to hear too much talk about this stuff these days. http://www.gold-line.com/tef/tef.htm

3rd September 2003, 09:06 PM	#30
matth diyAudio Member Join Date: Jun 2003 Location: Bristol	All looks far to digital to me!! Mine you it would be nice to have some measurements of this system other than my rather bias view.