pabo's 0.0008% dist class D module

[peranders]

pabo has been busy working on a masterpiece(?) with impressing results when it comes to measurements. 0.0008% distortion is not much

http://www.anaview.com/Datasheets/300S.pdf

A couple of things in the datasheet:

1 forgot to mention the dimensions

2 The temperature is -103 degrees cold! a couple of "-" too many

3 Effeciency/power consumption

4 Cooling demands

[IVX]

Pabo, congratulations!
Seems aren't IR driver in use?
Something about loop gain? >60db?
What about sound etc (sad that THD/Freq far from flat)

peranders, by the first looking cutout is 85x75mm.

[classd4sure]

Hi Pabo!

Nice one

I do hope though, that you've got the SMPS' to sell along with them? Looks like they'll be real expensive monoblocks!~

Got an estimated price yet?

Regards,
Chris

[Pabo]

classd4sure

How do you mean, real expensive monoblocks?

The module is very cheap to produce thanks to our production facilities and our single sided soldering build. At high volumes (>10k per year) the price will be about 25USD each for the 300S.

The module does not need additional cooling in order to produce music into clipping in four ohms. It will be delivered on a piece of aluminum sheet with thermal connection to the secondary side of the module. This enables the module to deliver full power for long periods of time.

Datasheets on the 150S module is coming soon.

[richie00boy]

Where can I find details of these products? Your www link button doesn't point to a valid website.

[classd4sure]

Originally posted by Pabo
classd4sure

How do you mean, real expensive monoblocks?

The module is very cheap to produce thanks to our production facilities and our single sided soldering build. At high volumes (>10k per year) the price will be about 25USD each for the 300S.

The module does not need additional cooling in order to produce music into clipping in four ohms. It will be delivered on a piece of aluminum sheet with thermal connection to the secondary side of the module. This enables the module to deliver full power for long periods of time.

Datasheets on the 150S module is coming soon.

Well just that you need three seperate power supplies for each module, that's damned expensive isn't it? Seems like a must for a SMPS.

Regards,
Chris

[richie00boy]

I made the assumption that Vdd and Vcc are low current just for the op-amp etc, and thus could be derived from the higher rails by zener of simple emitter follower/7x series regs. Same goes for Vdr.

So you would only need one transformer with a normal pair of windings. Although if this could be done onboard like UcD and ZAPpulse it would make peoples life easier. At least I guess it gives you the choice how well you want to implement these rails.

[Lars Clausen]

0.0008% at 100Hz 30W hmm Per Anders, you had to look real close to find that point! Otherwise up to 0.03%

But all in all data in the same level as UcD or slightly better.

A part from that i think it looks pretty good! It seems Anaview is a new and small family venture in south of Sweden. I can only wish you guys the best of luck in the Audio Industry!

Lars Clausen

[classd4sure]

Originally posted by richie00boy
I made the assumption that Vdd and Vcc are low current just for the op-amp etc, and thus could be derived from the higher rails by zener of simple emitter follower/7x series regs. Same goes for Vdr.

So you would only need one transformer with a normal pair of windings. Although if this could be done onboard like UcD and ZAPpulse it would make peoples life easier. At least I guess it gives you the choice how well you want to implement these rails.

Hmmm, one would sure hope so anyway huh? But at 35+ volts I didn't feel comfortable making that same assumption. Sounded like three power stages to me, if that's the case unless they sell the supply for it too, and most likely switch mode, I don't think many will be able to afford this amp. Not me anyway.

I hope it does well too though, best of luck Pabo, hope your effort pays off.

Chris

[Pabo]

Lars Clausen

Thank you for your good lucks.

Classd4sure

A toroid transformer with five windings doesn´t cost more than a dollar more than one with two windings as long as the weight of copper isn´t much higher.

The reason why we didn´t implement the regulators onboard is that it would generate a couple of watts of losses. If the supply is derived with an SMPS or a transformer with multiple windings the losses will be much lower. Anaview will also sell transformers and supply boards suited for our applications but in most cases our customers will design their own supplies.

Bear in mind that we only sell these modules to companies and not to DIY-customers. The reason is that each customer require a certain amount of administrative time and support time so if those customers only buy two modules they will become very expensive.