To be more clear,you can use a 3U modushop or diy-store chassis,for EF3-x version if you will mount the pcb in 90° configuration,not parallel to heatshink.
For EF3-3(3 output pairs a 300mm depth chassis is enough).
For EF3-4 (4 output pairs ) you need a 400mm depth chassis.
For EF3-3(3 output pairs a 300mm depth chassis is enough).
For EF3-4 (4 output pairs ) you need a 400mm depth chassis.
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thimios:
Why won't the boards fit parallel with the heatsinks in a 3U chassis? Is it because of the heatsink mounting brackets? I figured that if your boards were 77mm high, adding the spacing for the MOSFETS would bring the total height to no more than 97mm. The interior height of the 3U Dissipante chassis is reportedly 120mm.
Thanks for the insight!
Regards,
Scott
Why won't the boards fit parallel with the heatsinks in a 3U chassis? Is it because of the heatsink mounting brackets? I figured that if your boards were 77mm high, adding the spacing for the MOSFETS would bring the total height to no more than 97mm. The interior height of the 3U Dissipante chassis is reportedly 120mm.
Thanks for the insight!
Regards,
Scott
Scott,
The length of the board is the issue. What I was trying to express is that the decision to use a 4 pair configuration requires the use of a 400mm deep chassis. The picture of the amp I'm building was to illustrate how you can mount the boards perpendicular, if that configuration better suits your build objectives. The 3U chassis is perfectly good at 120mm high. I measure 100mm from the edge of the board to the top of the outputs, so a little planning as you go and you'll be good.
The length of the board is the issue. What I was trying to express is that the decision to use a 4 pair configuration requires the use of a 400mm deep chassis. The picture of the amp I'm building was to illustrate how you can mount the boards perpendicular, if that configuration better suits your build objectives. The 3U chassis is perfectly good at 120mm high. I measure 100mm from the edge of the board to the top of the outputs, so a little planning as you go and you'll be good.
I don't believe so... It doesn't leave any room for anything else and would be impractical. Your power supply would have to be huge, which takes up even more room.
neilshop:
Thanks for the information! I expect to use the EF3-3 boards, so it appears a 3U / 300mm chassis will work. The plan is to build a sleek integrated amp.
It undoubtedly cannot be said enough: thank you to everyone on the Wolverine team! This looks to be a really fun project!
Regards,
Scott
Thanks for the information! I expect to use the EF3-3 boards, so it appears a 3U / 300mm chassis will work. The plan is to build a sleek integrated amp.
It undoubtedly cannot be said enough: thank you to everyone on the Wolverine team! This looks to be a really fun project!
Regards,
Scott
I have completed the dxf file. I'm just waiting for another one of our group members to check it. I'll post it as soon as I can.
I'm not sure we will release the drilling template to the forum until Thimios has tested. If something has to move in the final version and people have chassis modified before they have boards that won't be ideal.
So let's just wait until things are final before approaching machine shops.
So let's just wait until things are final before approaching machine shops.
Hi all. Thanks for all the hard work with these amp boards.
I was wondering if there is any simpler description of these boards for someone who isn't very knowledgeable with electronics. My understanding is that there are 3 different board options. The ef3-3, ef3-4 and the wolverine board.
I have been reading the thread for over an hour trying to figure out exactly what this all means but I haven't been able to figure it out.
I've also seen people mentioning 3 and 4 pairs of outputs. Does this literally mean the number of speaker outputs, or is it something to do with why the ef3-4 has more power than the ef3-3?
Sorry if this has already been answered
I was wondering if there is any simpler description of these boards for someone who isn't very knowledgeable with electronics. My understanding is that there are 3 different board options. The ef3-3, ef3-4 and the wolverine board.
I have been reading the thread for over an hour trying to figure out exactly what this all means but I haven't been able to figure it out.
I've also seen people mentioning 3 and 4 pairs of outputs. Does this literally mean the number of speaker outputs, or is it something to do with why the ef3-4 has more power than the ef3-3?
Sorry if this has already been answered
A power amplifier consists of two stages.
The first one is the IPS(Inputput Stage)
Second is the OPS(output Stage).
In our case the input stage is the Wolverine.
As an output stage you can use a 3pairs output transistors that we call EF3-3or a 4pairs of output transistors that we call EF4-4.
I hope that this will explain a little.
The first one is the IPS(Inputput Stage)
Second is the OPS(output Stage).
In our case the input stage is the Wolverine.
As an output stage you can use a 3pairs output transistors that we call EF3-3or a 4pairs of output transistors that we call EF4-4.
I hope that this will explain a little.
If this subject has already been covered in a previous post, my apology... what is required to build this amplifier with balanced input?
Two boards per channel?
Two boards per channel?
Yes... How you configure your signal ground to the input is up to you, but it's highly recommended to keep it isolated from the chassis to prevent introducing noise to the signal path.
Sorry, I believed this amp had only single ended inputs. How can it accept also balanced inputs?