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Powefull MiniAMP 12 years 3 months ago #262

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It would be really nice with at powerfull 2 channel MiniAMP. Are you planning something like that?

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Re:Powefull MiniAMP 12 years 2 months ago #281

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Hello,

It's something that we've toyed around the idea but haven't been allocating resources nor putting it on the planning yet. Building a product (not just a one time board) takes time and money to see it through its complete manufacturing cycle, so it's never a choice we make out of the blue. The issue with more power on such a tiny board is space and heat dissipation. Already, on a miniAMP board, we're double sided components and had to go through multiple designs to optimize heat dissipation. A more powerful amplifier would bring the same issue to the table with a factor so we'll have to do some brain storming first on whether this is mechanically possible without a big large heatsink as you would see on other small amps (hypex/ICE...)

Anyway, if we ever make progress in that direction, we'll let you guys know. :-)
miniDSP, building a DSP community one board at a time.

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Re:Powefull MiniAMP 12 years 2 months ago #289

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My first class D project was a 2x400 watt 4 ohm (BTL configuered) from CAD audio. These amps required no heatsink at all. Only a vary tiny on board heatsink (smaller than that on the MiniAMP) was enough.

It's only a nice to have, and I can live with out a powerfull I2S amp, but it could be a lot of fun. Maybe it should just be confugured as a subamp below 500 Hz, then the switching frequency could be low and efficiency would theoretically go up - requiring smaller heatsinks.

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Re:Powefull MiniAMP 12 years 2 months ago #293

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The CAD modules along with ICE and Hypex modules are indeed nice modules, but this small amp market is already so crowded with good options that it makes us wonder the point of building a similar amplifier than these companies? I can tell you in advance that we have no plans of having a 800W total amp on a 3" square module though. :)

We'll let you know if/when we ever make progress in that direction.
miniDSP, building a DSP community one board at a time.

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Re:Powefull MiniAMP 12 years 2 months ago #297

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DIY Class D with digital input is not crowded. You are the only provider of such a module.
I agree, there is no need for just another class D amp.

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