Ignorance is bliss but sarcasm when have no idea on the subject is rude.Cool , so you have been engineering it 2.5 years. Is it so hard?
Ignorance is bliss but sarcasm when have no idea on the subject is rude.Cool , so you have been engineering it 2.5 years. Is it so hard?
@pma I asked earlier but you may have missed it. What is that small amplifier make & model and new cost you are referring, please? Without knowing it it’s not possible to understand the point you are making. I hope you will agree.Thanks for the explanation, I will be looking forward to your design. As a small challenge, this is the same/similar kind of measurement on a small class AB amplifier with TMC compensation. I hope you will get better . I tried to keep the same scaling as @amirm for fast comparison.
View attachment 156842
(BTW I need more than 7 minutes for a single plot, these 4 plots take more than 30 minutes)
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and Topping as per the review>
In my case ordering of the complex multiplayer board with integrated heat spreader for the ICs takes up to 9 months. And then another 9 months if something goes wrong. Plus months in the reliability lab. So 2.5years from idea to industrialized product is not so badIgnorance is bliss but sarcasm when have no idea on the subject is rude.
are those specs actually real
Thats true for the older Genelecs, like 8040 with chip amp amplifiers, where the spec is 0,05%.Hard to know the implementation's SINAD without the manufacturer telling. Genelec states 0.05% of THD at 1/8 of the available power and the generated speaker noise separately (x dB(A) SPL at 1 m). Neumann specifies its amplifier power at fixed THD+N (i.e. "Output power woofer amplifier (THD+N with limiter deactivated: 0.1%)" for the KH120A) and self-generated noise in the same fasion as Genelec (at 10 cm, though).
I apologize. Tried to joke but there is language wall.Ignorance is bliss but sarcasm when have no idea on the subject is rude.
What do you think about this tpa3255 with pff . Is it still bad ?This is poor, again, same as for many cheap class D amplifiers.
View attachment 156836
Unfortunately, Hypex Ncore and Purifi remain the only well behaving class D amplifiers. Still a lot to learn, @JohnYang1997 .
While brexit is painfully obviously a shit show - I don't think it can be used to justify this price difference.Probably because they have a euro distributor and not a UK one, so it's euro price, - vat, + UK vat shipping and duty. So basically the same cost of goods, don't blame topping, blame the gammon twats who wanted brexit.
Thank you for taking the time to explain.I apologize. Tried to joke but there is language wall.
I agree that topology as such does not matter if all other things are kept equal. Class AB is to me just so synonymous with lower efficiency that I didn't elaborate it further. I mentioned the error correction only because in my view it makes the Neurocrome Modulus amplifiers something more than Chipamp, as which the original comment categorized it in my view. Although, he might have meant the "LM3886 Done Correctly"-board, which I did not remember. I probably should be more precise.I agree that we shouldn't compare products that aren't in the same price range ore maybe more, in the same "Price per Watt" range, but hey whether it's class AB, whether there is a different feedback topology, error correction, and such, it's of course interesting to note but in the end all have the same job to do. It's not how you get there, it's how good, and that include how energy efficient, you are at amplifying an audio signal. I don't think we can only compare class D or other topology separately, in the end the expected result is the same.
I agree that we shouldn't compare products that aren't in the same price range ore maybe more, in the same "Price per Watt" range, but hey whether it's class AB, whether there is a different feedback topology, error correction, and such, it's of course interesting to note but in the end all have the same job to do. It's not how you get there, it's how good, and that include how energy efficient, you are at amplifying an audio signal. I don't think we can only compare class D or other topology separately, in the end the expected result is the same.
Yes - of course. So Uk should pay 20% vat plus shipping. Germany just pays the 19% vat (if we assume shipping is already paid to Germany.Tony if the stock is held bonded in Europe then it could legally be only UK vat, plus other charges, not necessailly double vat, if its held in a none bonded warehouse then its cost of goods plus shipping and insurance plus uk duty and vat on top of the European price. So figure 50-60 quid on a 200 item.
If they have a bonded warehouse it could be less European vat...if. for sales of finished goods within Europe that's an unlikely business complexity and expense as it only offers the business a tiny benefit for a small % of sales.
Its what the people wanted, they voted for it.