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Class D Switching Power Amplifiers and Power D/A conversion

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Old 16th September 2011, 08:06 PM   #1
baga is offline baga  Romania
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Default Powersoft k series step up

What do you think about this?k-series-step-up

They say that you can upgrade k10 (2x6000w) to a k20(2x9000w) by buying a card priced more or less as the price difference between the models. What a bunch of thieves. I see some technical possibilities:
1.You get peak power like the bigger model but the continuous power will be limited to same power you have without the card. But the power is limited anyway, even if you don't have a card, at a fraction of 2x6000w because not enough cooling and undersized components. This is the design philosophy of many high power amps.
2.The amplifier model with lower power uses same components like the higher power model, but is deliberately crippled by digital signal processor to limit the power.If anybody have schematics of k10 and k20 please tell us the differences.
3.This is unlikely.They relax the protections for more power but decreased reliability.I don't think that they can do such a thing, but is technically possible.
After they robbed the customers with their overpriced amps, they are making fun of them.
I heard that they will make amplifiers with slots for credit cards

Last edited by baga; 16th September 2011 at 08:25 PM.
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Old 16th September 2011, 09:35 PM   #2
Eva is offline Eva  Spain
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Quote from Powersoft website:

"The K6, K8 and K10 all share the same hardware platform. This means that by purchasing a K6, it is possible –as your business and your power requirements grow- to upgrade the platform’s output power.
This is carried out using the Model Step-Up Card and each step costs, more or less, as the price difference between the various models. For example, one Step-Up will transform the K6 into a K8, two Step-Ups will make the K6 a K10.Of course the K8 can also be upgraded."

Sounds like all but the K10 are power limited on purpose... Not a fair practice...
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Old 16th September 2011, 10:19 PM   #3
baga is offline baga  Romania
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Sooner or later the chinese companies will start to make cards for these, with a price of 10$
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Old 17th September 2011, 09:20 AM   #4
ssanmor is offline ssanmor  Spain
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Funny marketing stuff. This is like buying a BMW M5 with only 200hp, but don't worry: for 30.000 euro more you can get real power from it.
So: you are paying for the full hardware platform at the start but getting only a percent of its potential, when it could be achieved for only a fraction of its cost.
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Old 17th September 2011, 09:27 AM   #5
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Quote:
Originally Posted by Eva View Post
Sounds like all but the K10 are power limited on purpose... Not a fair practice...
A perfectly reasonable business model, you get what you pay for. Most pro's aren't looking for the maximum power from an amp, they're looking for an amp that provides the power needed for a particular application, and that will differ from say, a stack of subs to the CDs in a stage wedge.
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Old 17th September 2011, 12:54 PM   #6
Pafi is offline Pafi  Hungary
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Quote:
After they robbed the customers...
Quote:
Not a fair practice...
Quote:
...it could be achieved for only a fraction of its cost...
Whats your problem? If something is too expensive, simply don't buy it! Nobody forces you to buy this or that, and nobody hides anything. You can't expect a manufacturer to make more different hardware models just for your wish, if it's not ecological for them. It's their right to decide. Making different models increase logistical and manufacturing problems. Development and certification costs also.

Last edited by Pafi; 17th September 2011 at 12:59 PM.
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Old 17th September 2011, 01:07 PM   #7
Pafi is offline Pafi  Hungary
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Originally Posted by baga View Post
What do you think about this?k-series-step-up

They say that you can upgrade k10 (2x6000w) to a k20(2x9000w)...
No, they don't! This is one of the exeptions, the upgrade that is not possible. Read it again!

Also K3 to K6 is not upgradable!
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Old 17th September 2011, 07:34 PM   #8
Eva is offline Eva  Spain
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Powersoft products are extremely expensive, this is something that can make a company fail in the global crisis times we live, as more affordable products appear and the market can suddenly shift. They are just benefiting from a the lack of competitors.
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Last edited by Eva; 17th September 2011 at 07:52 PM.
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Old 18th September 2011, 12:58 AM   #9
Pafi is offline Pafi  Hungary
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lack of competitors
Are you serious? Would Powersoft be the only one?
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Old 18th September 2011, 11:13 AM   #10
baga is offline baga  Romania
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Originally Posted by Pafi View Post
No, they don't! This is one of the exeptions, the upgrade that is not possible. Read it again!
You are right.Sorry, i read too fast.
But after i read slower i see that is possible to upgrade from k6(2x3600w) to k10(2x6000w) with TWO cards
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