Class D Amp Photo Gallery

[Poultrygeist]

great job, Steven

 

[stewin]

thanks sir

 

[Sous]

my automotive UCD power amp 2x100W with extra integrator in feedback circuit

 

[stewin]

hi sous . wow lovely work .on which post is the project posted?

 

[Sous]

hi sous . wow lovely work .on which post is the project posted?

Hi, Stewin. Thanks.

There is something:
http://www.diyaudio.com/forums/clas...-ucd-high-quality-power-amplifier-2x100w.html

but updates first posting on russian forum
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[Cresnet]

Finished my 2500W Class-D amplifier, showing a small video, will show pictures soon

diysmps

 

[doctormord]

Nice one, for thos who have a 2k5W psu handy.

I wonder how you do 280Vpp from a +-100VDC supply?

 

[Poultrygeist]

This is a TK2050 and Meanwell PS I put together when they first came out.

Back then I thought it sounded pretty good but now days it doesn't compare to the less expensive TPA 3116.

I called it my tripath under glass

 

[Pafi]

Finished my 2500W Class-D amplifier, showing a small video, will show pictures soon

diysmps

You tested it 1250 W @ 8ohm on the video, but stated 2500 W @ 4 ohms.

BTW: where is the amp?

 

[Poultrygeist]

My newest dual chip TPA3116 paired with an Astron SL-15R and tube preamp.

 

[Malefoda]

...

Back then I thought it sounded pretty good but now days it doesn't compare to the less expensive TPA 3116. ../

Same here, do not use my Sure TK2050 anymore...

 

[stewin]

You tested it 1250 W @ 8ohm on the video, but stated 2500 W @ 4 ohms.

BTW: where is the amp?

photos please mr cresent

 

[Cresnet]

You tested it 1250 W @ 8ohm on the video, but stated 2500 W @ 4 ohms.

BTW: where is the amp?

Yes, Because the same test was conducted at 4OHMs also, I didn't make a video for that.

I am planning to conduct another test at +-120VDC soon, Hope to post some info soon.

 

[withavee]

My newest dual chip TPA3116 paired with an Astron SL-15R and tube preamp.

Any more info on that dual chip 3116 - inside photos etc?

 

[stewin]

Yes, Because the same test was conducted at 4OHMs also, I didn't make a video for that.

I am planning to conduct another test at +-120VDC soon, Hope to post some info soon.

+/-120vlts with irfp260 or irfb4227??

 

[Cresnet]

+/-120vlts with irfp260 or irfb4227??

Nope!!


I will use 250V Mosfets, in that video a 200V Mosfets were used at +-90VDC.

 

[stewin]

hi sir i have a few pcs of irfs4227 around . ,can a single pair work comfortably in ucd +/-95vlts 2ohms , 250khz

 

[Poultrygeist]

Any more info on that dual chip 3116 - inside photos etc?

Here's my first dual chip ( stock ) paired with a Pyramid regulated power supply. Some of the dual chip boards have two heat sinks while others have one long one. Makes no difference.

 

[withavee]

Here's my first dual chip ( stock ) paired with a Pyramid regulated power supply. Some of the dual chip boards have two heat sinks while others have one long one. Makes no difference

Thanks pg, how do they differ from the single chip yj board? Are they just higher output and have the extra input? Might have to try one.

 

[Poultrygeist]

Thanks pg, how do they differ from the single chip yj board? Are they just higher output and have the extra input? Might have to try one.

They're advertised as 2X100 vs 2X50 for the single chip but that's a stretch.

With the same PSU the dual chip seems more powerful but that may be just my perception.