With Purifi releasing their own SMPS at any time, that won't affect our business.
It will be great to see the Purifi SMPS soon.
Thanks
It will be great to see the Purifi SMPS soon.
Thanks
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New Purifi amplifiers coming
- Thread starter mocenigo
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Sokel
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As far as the paranoid me concerns,a Purifi SMPS will probably have all the western certifications and will conform with all the safety and EMC standards.
It will also probably pass mechanical (like vibration) and environmental tests.
That's a big deal in my book for high power devices.
But will it have the musicality of a £10k Dr Sean Jacob’s?
Keith
Keith
Have often talked about managing projects and how you might compromise between cost, features and quality, but the other key dimension is time. Many technical folk tend to think of time in terms of schedule, but for some products, time to market is critical. In the case of a Purifi SMPS, you could reduce both of these by contracting out the effort. The longer time drags on, you are often spending more on labor and the product is not generating any revenue. If the existing market offerings are sufficient, the longer you do not have a product, the more entrenched existing offerings become as well.
As for Purifi, Bruno wisely acknowledges the market challenge in the posted interview. SMPS are pretty staid tech at this point and the main drivers are availability, cost and reliability. Yes, innovating can help, but a supplier needs to demonstrate consistency in the other three first. A common tech company mistake is to believe you can design something better than others, often the better answer is finding a competent, established partner. 
As for Purifi, Bruno wisely acknowledges the market challenge in the posted interview. SMPS are pretty staid tech at this point and the main drivers are availability, cost and reliability. Yes, innovating can help, but a supplier needs to demonstrate consistency in the other three first. A common tech company mistake is to believe you can design something better than others, often the better answer is finding a competent, established partner. 
If I understand correctly, the engine manufacturer and designer considers that there are enough gearbox manufacturers on the market even if the gearbox doesn't fully exploit the power and torque of this engine, and that the sauce would become more expensive than the fish to design a gearbox that would perfectly suit this engine.
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EdW
Senior Member
But if you wanted an assembled amplifier to attach to your speakers and go, when you approached most of the usual amplifier builders and asked what could they put in the post today you might be disappointed . . .
Fidji
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Question - [probably not relevant for !ET400, as it has adequate PS with Hypex ones] but for 1ET7040 where Hypex PS are not adequate - is it possible to refurb/swap just the power supply without re-doing the whole amp [input buffers etc]
BTW I am one of the people waiting for 1ET9040 module based amps ;-) to be delivered.
- Thread Starter
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Of course. You may be able to find power supplies from other suppliers as well. I did that for my 1ET400A build because at the time one had to wait 4+ months for Hypex PSUs.
restorer-john
Grand Contributor
'Innovative'. 'New concept' and 'certification bodies'. I can see where this is going...
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Yeah, this is also MY own bane, in my work field.
Fidji
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So, have a pair of Apollon Audio monoblocks at home. Input buffers based on Weiss opamps.
Incredibly nicely built, they are able to play loud with my electrostats, small form factor allows me to place them more flexibly and shorten speakers cables lenghts. They stay cool.
They have slightly higher gains, compared to 1ET7040, so if you integrate them into existimg HT, either you adjust the gain or recalibrate the whole thing. I went for gain adjustment.
Incredibly nicely built, they are able to play loud with my electrostats, small form factor allows me to place them more flexibly and shorten speakers cables lenghts. They stay cool.
They have slightly higher gains, compared to 1ET7040, so if you integrate them into existimg HT, either you adjust the gain or recalibrate the whole thing. I went for gain adjustment
.
That sounds like a price increase. Do manufacturers usually brag about this and charge more?
Ok, color me silly. What are you focused on?
The power supply or the op-amp?
How would it be better than linear power supplies?
And no, I know nothing but what I've found on the internet. I'm a Software Engineer, not EE.
Power supply. I asked about the power supply topology.
A linear power supply has sag unless expensive transformers and capacitors are used. A SMPS has near zero sag, is more efficient, used small inexpensive capacitors and transformer and overall is smaller.
And if what I read SMPS has a bit of noise... which can be corrected at some expense.
The question is that if so good, why no one is doing this?
Again, I'm not against anything that will improve the quality while keeping cost at a minimum.
[edit] Note that Buckeye Audio offers an SMPS option as an upgrade.
see: Here
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