Sure Electronics New Tripath Board 4*100W class-D Amplifier Board

[justblair]

Originally Posted by aquapiranha

TBh honest Blair, that is what I thought, but I know someone who had a problem with this board and the meanwell 24V 14.6A PSU that I have also ordered. We shall see what happens, I have a couple of lower rated PSU's that I could try first to make sure. I have also ordered a nice chassis from modushop.it

Steve

I am als going to use a modushop case. I have been talking with them about using my own design. I have done the majority of the work on it as well, just need to add an IR port to the design and it is ready.

[aquapiranha]

Originally Posted by justblair

I am als going to use a modushop case. I have been talking with them about using my own design. I have done the majority of the work on it as well, just need to add an IR port to the design and it is ready.

Cool. You will have to post pics when it is done. I have just gone for the standard black Pisante 3U with some handles..

I do like the look of their Class T cases too, very cheap and stylish, perfect if you need a pot in there.

Steve

[AndrewT]

Why do you allow yourselves to be so easily conned?
Look at the datasheet for the tk2050.

It is a 42W into 8r0 @ ~0.1%distortion amplifier. Not 100W.

Look at the data and look at the graphs.

The only version that approaches or exceeds 100W is the parallel into 4r0. That is TWO amplifiers operating in parallel to give 117W into 4r0, i.e. 58.5W into 8r0 @ ~10% distortion.

[justblair]

Originally Posted by AndrewT

Why do you allow yourselves to be so easily conned?
Look at the datasheet for the tk2050.

It is a 42W into 8r0 @ ~0.1%distortion amplifier. Not 100W.

Look at the data and look at the graphs.

The only version that approaches or exceeds 100W is the parallel into 4r0. That is TWO amplifiers operating in parallel to give 117W into 4r0, i.e. 58.5W into 8r0 @ ~10% distortion.

The Sure design is using parralled amplifiers. Its not a con.



If you look at this image (heatsink removed) you can see the 4 stereo chips. i.e. 4*100W. Of course 100W is not an exact figure, and you wont get 100W per channel without serious distortion if at all. But it should be useable to around 60w. The 2 channel version sounds very good in stock form.

[Peter Menting]

The "Winsome Mouse" which uses the same chipset and a 30Volt PS is quoted as delivering 50 "clean watts" per channel. Mine certainly has sufficient power to drive the upper end of my OB's.

Pete

[aquapiranha]

Hi Andrew. I don't think I am being 'conned' since I already knew what power I might be expecting into my 6-8Ω load. In fact I think I mentioned it earlier on in the thread. I used to have a Trends TA10.1 which I modified slightly, and I would guess that before any meaningful distortion I may have been getting around 7-8w maximum into a benign 8Ω 94dB load, so no issues there.

Is the power output the only point on which you believe we are being conned? or is there some other issue we need to know about? Do you have a preference for chip amps over Tripath? if so, any reasons?

Thanks Andrew.

Steve

[AndrewT]

I don't know if I have ever listened seriously and knowingly to a digital amp (of any type).
I do have a preference for discrete analogue over ICs.

[aquapiranha]

Thanks Andrew, sorry if my post appeared as if I was having a go, really I wasn't and I value comments from someone such as yourself with a wealth of knowledge and experience.

Steve

[PyroVeso]

So anybody heard the board already?

[justblair]

Originally Posted by AndrewT

I don't know if I have ever listened seriously and knowingly to a digital amp (of any type).
I do have a preference for discrete analogue over ICs.

If you are ever near Glasgow, I can certainly indulge you to a listening session. I have a 4 Channel Gainclone, several TA2024 modules a Sure 2*100w and shortly will have the 4*100w working hopefully.

I love my Clone, but the Tripath sound is even better IMHO.