Maybe the highest power amp ever insane 40.000Watts!!!
PKN 3PHASE power amplifier
THREE PHASE 400VAC POWER
PKN 3PHASE power amplifier
THREE PHASE 400VAC POWER
Sweet! Now I know why I recently bought one of these 45kW diesel generators and put it in my living room. It came cheap, too at 30K$...😀
E
Attachments
Much bigger valve amplifiers were once used for AM modulation of transmitters.
Seems rather unbelievable that such a small unit could give so much power....🙄
Seems rather unbelievable that such a small unit could give so much power....🙄
I have my doubts about this amplifier. Not available until next year?
A Class D amplifier has an efficiency of 85-90% at best.
This amplifier would need to dissipate between 400 watts (best case) and 1500 watts (worse case) in heat.
There is no way that a single rack unit amplifier can dissipate that much heat.
Even with a big blower to keep the chassis cool, there is not enough surface area to dissipate that amount of heat.
A Class D amplifier has an efficiency of 85-90% at best.
This amplifier would need to dissipate between 400 watts (best case) and 1500 watts (worse case) in heat.
There is no way that a single rack unit amplifier can dissipate that much heat.
Even with a big blower to keep the chassis cool, there is not enough surface area to dissipate that amount of heat.
My calculations were for a single channel of audio.
For the two channel version, the heat dissipation would be 2X.
For the four channel version, the heat dissipation would be 4X.
This must be a joke.
For the two channel version, the heat dissipation would be 2X.
For the four channel version, the heat dissipation would be 4X.
This must be a joke.
As I informed those PKN amps has soft switching and fancy GaN transisitors so they have losses in most of the operation range as low as 1% in the endstages. It would mean 99% efficiency which is not unrealistics today (however VERY pricey)
I do not know what power supply they have but on other forums some guys who saw the internals mentioned "military technology"
I do not know what power supply they have but on other forums some guys who saw the internals mentioned "military technology"
It would be quite doable with water cooling. Zalman used to sell a water cooler which had a separate radiator. This might make for an interesting DIY kit. (Backing the warranty on electronic equipment which has water cooling installed seems dicey to me.)
What are you talking about. 1U rack servers are generally spec'ed at ~500W of heat dissipation, so there's no reason an amp couldn't be.
I would second that. Judging from their documentation, the amp does much better than 85-90%. In the end it's all about minimizing switching losses, and their amp switches at a relatively low 250kHz.
Also using GaN mosfets, I expect my module (http://www.diyaudio.com/forums/class-d/195848-uber-egan-half-bridge-module-4.html#post2710139) to stay fairly cool at hundreds of watts.
E
It's 4x10kW into 2.66 ohm. It's a perfect match for very large line arrays. But instead of 4 2U rack amps of 1x10KW each you can just use 1 of these in 1/8th of the space per channel. You still need several more for the sub bins.
Depends on which country you're in.
Decimal mark - Wikipedia, the free encyclopedia
In the vast majority of European countries. Comma is the decimal mark, and period the thousand separator. It is the reverse almost exclusively in the UK, Ireland and in much of North America.
Last edited:
Not on mine 😉
Neither on my calculator or my PC. My calculator actually doesn't even have a "." (period), only a "," (comma).
Attachments
Last edited:
I have several problems with this amplifier.
The power connector is far too small to handle the amount of current that this amplifier will consume.
The speaker connectors are, likewise, too small.
The output inductor which will handle 10 kilowatts is big ... very big.
I can't see how they can possibly package a 40 kilowatt amplifier in a 1RU chassis.
The power connector is far too small to handle the amount of current that this amplifier will consume.
The speaker connectors are, likewise, too small.
The output inductor which will handle 10 kilowatts is big ... very big.
I can't see how they can possibly package a 40 kilowatt amplifier in a 1RU chassis.
- Status
- Not open for further replies.