Hello There! 🙂
We have available amplifier modules that are capable of extreme powers at low heat and very small in size. The keys to these amplifiers are the lateral mosfets that we have developed our selves and had manufactured in England.
We currently posses the only Double Die Mosfets that do not overheat or have oscillation problems. Data sheets can be found on our website for both the mosfets and amplifier modules.
The amplifiers are simply of stunning power and quality, especially for the size. We have over 20 different modules in 4 different ranges. We also sell the individual lateral mosfets for extremely competitive prices.
These products are ideal for active speakers, Hi-Fi gurus, speaker developers, power amplifiers etc.
For more details about the products mentioned in this post, and for our entire range of products, see our website:
http://www.classd.ltd.uk/
The specific amplifier modules and mosfets section can be found under the components sub category.
If you would like to talk to someone personally, then feel free to call the office on: (+44) 01623 654 080, alternatively contact Mike (Company Director) directly on: (+44) 07980 600 373.
Class-D Design Ltd.
We have available amplifier modules that are capable of extreme powers at low heat and very small in size. The keys to these amplifiers are the lateral mosfets that we have developed our selves and had manufactured in England.
We currently posses the only Double Die Mosfets that do not overheat or have oscillation problems. Data sheets can be found on our website for both the mosfets and amplifier modules.
The amplifiers are simply of stunning power and quality, especially for the size. We have over 20 different modules in 4 different ranges. We also sell the individual lateral mosfets for extremely competitive prices.
These products are ideal for active speakers, Hi-Fi gurus, speaker developers, power amplifiers etc.
For more details about the products mentioned in this post, and for our entire range of products, see our website:
http://www.classd.ltd.uk/
The specific amplifier modules and mosfets section can be found under the components sub category.
If you would like to talk to someone personally, then feel free to call the office on: (+44) 01623 654 080, alternatively contact Mike (Company Director) directly on: (+44) 07980 600 373.
Class-D Design Ltd.
Are these Class D type amplifiers (other than in the name of the manufacturer)? The pictures of the modules show no inductors and resemble Class AB amps. Is there information on how much heatsinking is needed of each?
The text says "Liner Mosfet Power Amplifier Module"
Notice spelling error
Not class D in other words.
It's hard to tell if the firm Class-D Design sells any class D at all. 😕 I see that they active speakers with class D at least.
Notice spelling error
Not class D in other words.
It's hard to tell if the firm Class-D Design sells any class D at all. 😕 I see that they active speakers with class D at least.
They can correct me if I am wrong on this, but I believe these were designed in conjunction with Aussie Amplifiers. If so, I would consider that a good thing, as I have loved all of my Aussie Amplifiers.
I think one thing that would help sell some of us on your modules would be some better clarification of the differences. You have many identical looking modules with different ratings, but no other specs per say. Also, power supply requirements would be nice, as in, what rail voltage range should each of the modules need? Also, what sort of heatsinking is required? You say they run cool, does that mean a minimal amount of heatsinking is needed, maybe only a thick piece of aluminum, or a full finned heatsink, as with most linear amplifiers?
I think one thing that would help sell some of us on your modules would be some better clarification of the differences. You have many identical looking modules with different ratings, but no other specs per say. Also, power supply requirements would be nice, as in, what rail voltage range should each of the modules need? Also, what sort of heatsinking is required? You say they run cool, does that mean a minimal amount of heatsinking is needed, maybe only a thick piece of aluminum, or a full finned heatsink, as with most linear amplifiers?
Although we do make class d amplifiers this is a very tricky field.
Loads of claims are made about class d amplifiers most are simply false. they are ideal for active bass units and some active high frequency amplifiers but for high power applications care frankly flawed.
As regards Aussieamplifiers he was contacted to design power amplifier modules in conjunction with ourselves.
We are the only people manufacturing double die plastic packaged lateral mosfets and have a range of double and single die lateral mosfets.
Our business is aimed at pro audio but is also applicable for HI FI systems. Lateral mosfets are without a doubt the best way to build high power audio amplifiers.
The PSU we have a ZVS control chip ACD2008-1 full details will be published shortly.
Heatsinking - we have our own range of 1U (40mm) and 2U (80mm) tunnel heat sinks designs custom designed, which can either be convection of fan cooled.
Hope this helps!
Mike Soppelsa
mike@class-d.com
skype us: contact@classd.ltd.uk
Loads of claims are made about class d amplifiers most are simply false. they are ideal for active bass units and some active high frequency amplifiers but for high power applications care frankly flawed.
As regards Aussieamplifiers he was contacted to design power amplifier modules in conjunction with ourselves.
We are the only people manufacturing double die plastic packaged lateral mosfets and have a range of double and single die lateral mosfets.
An externally hosted image should be here but it was not working when we last tested it.
Our business is aimed at pro audio but is also applicable for HI FI systems. Lateral mosfets are without a doubt the best way to build high power audio amplifiers.
The PSU we have a ZVS control chip ACD2008-1 full details will be published shortly.
An externally hosted image should be here but it was not working when we last tested it.
Heatsinking - we have our own range of 1U (40mm) and 2U (80mm) tunnel heat sinks designs custom designed, which can either be convection of fan cooled.
An externally hosted image should be here but it was not working when we last tested it.
Hope this helps!
Mike Soppelsa
mike@class-d.com
skype us: contact@classd.ltd.uk
Miniature Lateral Mosfet Power Amplifiers
Hi there!
We have some simply stunning, miniature power amplifiers available for sale.
Just take a look at the size and specification of these devices.
You will be AMAZED by the products and their quality.
You will be EVEN MORE AMAZED by the prices of these devices.
Click Here for the Specification Sheet
Click Here for a List of Prices
Contact us (E-mail / Skype / MSN) contact@classd.ltd.uk
Phone: 07980 600 373
Hi there!
We have some simply stunning, miniature power amplifiers available for sale.
Just take a look at the size and specification of these devices.
You will be AMAZED by the products and their quality.
You will be EVEN MORE AMAZED by the prices of these devices.
An externally hosted image should be here but it was not working when we last tested it.
Click Here for the Specification Sheet
Click Here for a List of Prices
Contact us (E-mail / Skype / MSN) contact@classd.ltd.uk
Phone: 07980 600 373
Class D:
I have merged your two threads. Do not start more threads on the same subject.
Chief Moderator
I have merged your two threads. Do not start more threads on the same subject.
Chief Moderator
Do those amplifier modules fit inside of the heatsink you are showing. For instance, could the amplifier modules with mosfets on both sides be mounted within the heatsink, or would you need to have heatsinks on each side within the enclosure?
Also, what is the price of your heat sink extrusions?
Also, what is the price of your heat sink extrusions?
"Loads of claims are made about class d amplifiers most are simply false. they are ideal for active bass units and some active high frequency amplifiers but for high power applications care frankly flawed."
"Utilising the latest SMD low noise, high linearity Class-D Alfet Lateral Mosfets and Zetex devices."
So are they class D or not?
"Utilising the latest SMD low noise, high linearity Class-D Alfet Lateral Mosfets and Zetex devices."
So are they class D or not?
The last amp module shown is definately Holtons new NXV200
Wonder if all Anthonys new amps will be available in UK/EU
On Anthonys old site a partnering company was mentioned, which I think was "Class-D"...nothing mentioned about it now though
The other bigger modules that are shown looks much like Anthonys previous designs from last year
nice prices 🙂
Wonder if component quality is different from Anthony Holtons
Wonder if all Anthonys new amps will be available in UK/EU
On Anthonys old site a partnering company was mentioned, which I think was "Class-D"...nothing mentioned about it now though
The other bigger modules that are shown looks much like Anthonys previous designs from last year
nice prices 🙂
Wonder if component quality is different from Anthony Holtons
Thanks for the replys everyone!
Let me just clear a few things up, some people appear to be getting a little bit confused! 😕
Our company is called 'Class-D' because originally we were going to develop Class-D Amplifers. However we soon discovered that there were too many problems associated with these amplifiers and so have moved on to 'Lateral Mosfet' amplifiers.
We call the Mosfets, 'Class-D Alfet Lateral Mosfets' but this does not mean that they are Class-D amplifiers! They are actually ultra high efficency Class AB Amplifiers.
For prices on heatsinking, please contact me directly on 07980 600 373 to discuss your requirements. We have over 2 tonnes available so supplys are plentiful!
The amplifiers are simular to Holtons, just more efficent, dont overheat, more powerful (because we are the only people with double die, plastic packaged lateral mosfets), and finally a lot cheaper. We don't like to rip people off... 🙂
Any other questions we will be happy to answer!
Mike Soppelsa
07980 600 373
mike@class-d.com
Let me just clear a few things up, some people appear to be getting a little bit confused! 😕
Our company is called 'Class-D' because originally we were going to develop Class-D Amplifers. However we soon discovered that there were too many problems associated with these amplifiers and so have moved on to 'Lateral Mosfet' amplifiers.
We call the Mosfets, 'Class-D Alfet Lateral Mosfets' but this does not mean that they are Class-D amplifiers! They are actually ultra high efficency Class AB Amplifiers.
For prices on heatsinking, please contact me directly on 07980 600 373 to discuss your requirements. We have over 2 tonnes available so supplys are plentiful!
The amplifiers are simular to Holtons, just more efficent, dont overheat, more powerful (because we are the only people with double die, plastic packaged lateral mosfets), and finally a lot cheaper. We don't like to rip people off... 🙂
Any other questions we will be happy to answer!
Mike Soppelsa
07980 600 373
mike@class-d.com
Hi Megajocke,
If you go to http://www.classd.ltd.uk/home.php?cat=266, Click on the one you want to see the datasheet for, then under the picture there is a see detailed images link. Click on that and the 2nd image is an image of the datasheets.
Hope this helps!
If you go to http://www.classd.ltd.uk/home.php?cat=266, Click on the one you want to see the datasheet for, then under the picture there is a see detailed images link. Click on that and the 2nd image is an image of the datasheets.
Hope this helps!
these miniature modules can fit in the heatsinks however we do have modules specifically designed to fit in the heatsinks.
We need to know what powers you are interested in
The heatsinks are designed to contain the whole amplifier.
I am out of the office at the moment back on tuesday we can send you full details if you require.
My email address is mike@class-d.com
If you send me your address will mail directly tro you
We need to know what powers you are interested in
The heatsinks are designed to contain the whole amplifier.
I am out of the office at the moment back on tuesday we can send you full details if you require.
My email address is mike@class-d.com
If you send me your address will mail directly tro you
I don't get that. I get a link under the mosfet saying click to enlarge, then a window opens and there is no text except close window. However at the top left there is a 1 and 2 icon and if I click 2 I get the datasheet image.
Unfortunately though this is almost impossible to make out the dimensional information, but it appears there is a conflict on the pinout here and in the middle of the page.
Also what about specs like gate-drain capacitance and transconductance?
It would be far better if you could just have a PDF download link on the page where you can buy the mosfet 🙂
Unfortunately though this is almost impossible to make out the dimensional information, but it appears there is a conflict on the pinout here and in the middle of the page.
Also what about specs like gate-drain capacitance and transconductance?
It would be far better if you could just have a PDF download link on the page where you can buy the mosfet 🙂
Yeah it looks like the wrong pinout besides the mechanical drawings. The middle pin and tab is source, isn't it? Also, it looks like the thermal resistance numbers are way off.
How do these differ from the Semelab laterals in their data?
Do you have a more thourough data sheet? I suspect you will have trouble selling these without information like capacitances, transconductance, Vgs-off. Graphs of Id-Vgs at multiple temperatures, Id-Vds at different Vgs, DC and pulse SOA/transient thermal impedance and so on...
Do they have built-in gate zeners? Gate threshold voltage? How high is the zero-temperature-coefficient current?
How do these differ from the Semelab laterals in their data?
Do you have a more thourough data sheet? I suspect you will have trouble selling these without information like capacitances, transconductance, Vgs-off. Graphs of Id-Vgs at multiple temperatures, Id-Vds at different Vgs, DC and pulse SOA/transient thermal impedance and so on...
Do they have built-in gate zeners? Gate threshold voltage? How high is the zero-temperature-coefficient current?
"Let me just clear a few things up, some people appear to be getting a little bit confused!"
Well, what do you expect when you call your amps "Class-D Alfet Lateral Mosfets"?
"They are actually ultra high efficency Class AB Amplifiers."
How efficient is that?
Well, what do you expect when you call your amps "Class-D Alfet Lateral Mosfets"?
"They are actually ultra high efficency Class AB Amplifiers."
How efficient is that?
Unfortuneately our company is called class d ltd and we do make Class D amplifiers
However we also realise the limitations of Class D amplifiers so for our professional audio business are completiing a range of high power linear amplifiers using improved lateral mosfets
However we also realise the limitations of Class D amplifiers so for our professional audio business are completiing a range of high power linear amplifiers using improved lateral mosfets
Would you care to highlight what you feel are the issues with class-d in high quality sound reproduction?
- Status
- Not open for further replies.