Sure Electronics New Tripath Board tc2000+tp2050 - Page 13

riktw · 6th June 2009, 03:54 PM

well mine amp is somewhere between hong kong and the netherlands atm, but its for a new PC amp.
only problem is that i want it small and the only transformer i have for it is 500VA, bit overkill

but what kind of transformer would i need for it?
2 times 100 watt means 200VA, and loss is 8%, so 16 watts max(8% of 100 = 8 watt, 2 channels means 16 watts.
so 225VA or 250VA looks ok to me, or do i need more or less?

vaughn · 6th June 2009, 10:17 PM

I've got one on the way as well, so I will be able to participate in any modding experiments...

I went with sureelectronics 24v Meanwell power supply for mine. I am hoping they will do better than my Behringer A500 driving my Usher 2-ways. The Behringer is good but not as good as tube amps if have tried in the mids and treble.

kankara · 7th June 2009, 11:41 AM

Quote:

What about the output inductors though? Maybe thats why you have no bass?

the inductors are the original 220. that the number write on the inductors.
i have 4 inductors extrapolated from the Hlly ta2024, but i don't know if will be ok for the 2*100W sure electronics.
16 coils of enameled copper cable(O,6/0,8mm diameter) on a toroid ferrite 14 mm diameter.
the electric schematic of the 2*100W show the value of inductors: 10uH(L1 L2 L3 L4).
i'm not able to make myself the inductors. sorry.

youp · 7th June 2009, 02:11 PM

I found a nice case and I solved the "heatproblem" with an aluminium block and a 12V fan. The heatsink doesn't get warm at all now.
On the picture you can see the progress so far.........

mravlcax · 7th June 2009, 05:49 PM

If anyone thinks that amp has too much highs, then he should put zobel filter on the output 10ohm resistor and 470nF cap in series(cap is on positive side).

Regards Aleš

konman · 8th June 2009, 06:20 AM

Quote:

Originally posted by youp
I found a nice case and I solved the "heatproblem" with an aluminium block and a 12V fan. The heatsink doesn't get warm at all now.
On the picture you can see the progress so far.........

Thats looking good there,

what type of power supply are using?

How did you construct your case?

youp · 8th June 2009, 06:22 PM

I am currently using a philips 450W 32V smps. but the fan makes too much noise. I was lucky and had the case lying around. I made it very simple with a switch to select between 2 audio-channels and a potentiometer for the volume. I used a 7812 to make 12V out of the 32V for the fan.

Joep

blamus · 8th June 2009, 08:12 PM

hmmmmmmmmmmmm sounds perfect as a car amp with tiny footprint?

maybe 2 of the 2*100W to bi-amp a 2-way front stage running off the car battery?

What about the 4*100W version? or is that the noisy one?

Once I see an 'official' list of mods and a bit more feedback I'm gona get these to make a set of active home speakers, if that works out then the next step would be a battery powered portable boombox for carrying around, and then i can start thinking about ripping my car amps out.....................

CptanPanic · 10th June 2009, 04:07 PM

Can you bridge the two outputs to get 200W mono? Also you can chain multiple boards together to get even more watts?
Thanks,
CP

Nisbeth · 10th June 2009, 07:17 PM

No, the 100W boards are already bridged.

/U.

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6th June 2009, 03:54 PM	#121
riktw diyAudio Member Join Date: Sep 2007	well mine amp is somewhere between hong kong and the netherlands atm, but its for a new PC amp. only problem is that i want it small and the only transformer i have for it is 500VA, bit overkill but what kind of transformer would i need for it? 2 times 100 watt means 200VA, and loss is 8%, so 16 watts max(8% of 100 = 8 watt, 2 channels means 16 watts. so 225VA or 250VA looks ok to me, or do i need more or less?

6th June 2009, 10:17 PM	#122
vaughn diyAudio Member Join Date: Feb 2008	I've got one on the way as well, so I will be able to participate in any modding experiments... I went with sureelectronics 24v Meanwell power supply for mine. I am hoping they will do better than my Behringer A500 driving my Usher 2-ways. The Behringer is good but not as good as tube amps if have tried in the mids and treble.

7th June 2009, 05:49 PM	#125
mravlcax diyAudio Member Join Date: Feb 2007 Location: Ljubljana, Slovenia	If anyone thinks that amp has too much highs, then he should put zobel filter on the output 10ohm resistor and 470nF cap in series(cap is on positive side). Regards Aleš

8th June 2009, 06:22 PM	#127
youp diyAudio Member Join Date: Jan 2006 Location: Limburg	I am currently using a philips 450W 32V smps. but the fan makes too much noise. I was lucky and had the case lying around. I made it very simple with a switch to select between 2 audio-channels and a potentiometer for the volume. I used a 7812 to make 12V out of the 32V for the fan. Joep

8th June 2009, 08:12 PM	#128
blamus diyAudio Member Join Date: Feb 2009	hmmmmmmmmmmmm sounds perfect as a car amp with tiny footprint? maybe 2 of the 2100W to bi-amp a 2-way front stage running off the car battery? What about the 4100W version? or is that the noisy one? Once I see an 'official' list of mods and a bit more feedback I'm gona get these to make a set of active home speakers, if that works out then the next step would be a battery powered portable boombox for carrying around, and then i can start thinking about ripping my car amps out.....................

10th June 2009, 04:07 PM	#129
CptanPanic diyAudio Member Join Date: Nov 2003 Location: WPB, Florida	Can you bridge the two outputs to get 200W mono? Also you can chain multiple boards together to get even more watts? Thanks, CP

10th June 2009, 07:17 PM	#130
Nisbeth diyAudio Member Join Date: Jan 2001 Location: Denmark	No, the 100W boards are already bridged. /U.