lol nothing drives me more insane than accidental loosing a post, ok second time lucky!
Hmm your thoughts on this are very informative, and has got me thinking. Preferable for pleasing my eyes it would have to be mono-blocks with sinks opposing each other. So sinks standing tall, the other option sinks stacked and opposing is good but do you not think as heat rises the sinks would end up hotter at one end ?
luckily from what Ive seen a couple of people have built using those sinks for F5T V2 and someone said that the amp was ok for a kid to touch! his were 10" tall mine are 11.8" so hopefully I can leave out the fan or add it later.
"This is probably down to the way the PCB have been produced."
You mean the diyaudio Ones ? yes I agree I need to think about that P and N separation.
luckily Im not bothered about having a tall amp, in fact I actually quite like it
I don't know why I didn't think of this side by side, I guess if made well it would not look ugly but Id have to work with it. Having them just put onto the back of a chassis like Ive seen someone else do is not pleasing to see lol
I had a look actually to see what the total dissipation of the V2 would be but didn't see that, I expect its just the total of the power thru the Fets and the Diodes.
Your using a copper heat-spreader ? I think I will go with this
"The little lips on the edge of the extrusion, the outermost fins, can also be used for heatsink alignment using two thin pieces of aluminium and a bolt - a 'lock', so to speak."
Yes, Ive seen magmas build or some of it, good idea. Cheers
The good thing is I don't think the amp would really pick up much from the fan noise unlike some amps. Yes It would be nice to try and Up the Bias, however Ive heard a Turbo at half suggested Bias and even that sounded amazing to me compared to the original F5. Which makes me remember Nelson Said in the V1 Turbo that its more authoritative and that's exactly what I liked, but weather the V2 is more authoritative compared to the original 25w F5 I don't know but I have a feeling that's partly Why I liked the Turbo more. And Im not a man who usually cared about power or authority, I do love the Class-A sound and this F5 Turbo V2 has blown me away. So im here to try the build a second time now.
Yes Fan Controller, Brill. Im having to write all this down (Never do usually) lol
Wish I knew.. mine was from Ebay.
They are lovely sinks so I had to snap them up, there are others out there with pretty fins like this to be found.
I do wonder about what the difference in sound between V1 and V2 is. But seriously most people don't need more than 50w Class-A.
Its sound im into not how loud it is however if the V3 sounded better then an upgrade would be due lmao
Hmm your thoughts on this are very informative, and has got me thinking. Preferable for pleasing my eyes it would have to be mono-blocks with sinks opposing each other. So sinks standing tall, the other option sinks stacked and opposing is good but do you not think as heat rises the sinks would end up hotter at one end ?
luckily from what Ive seen a couple of people have built using those sinks for F5T V2 and someone said that the amp was ok for a kid to touch! his were 10" tall mine are 11.8" so hopefully I can leave out the fan or add it later.
"This is probably down to the way the PCB have been produced."
You mean the diyaudio Ones ? yes I agree I need to think about that P and N separation.
luckily Im not bothered about having a tall amp, in fact I actually quite like it
I don't know why I didn't think of this side by side, I guess if made well it would not look ugly but Id have to work with it. Having them just put onto the back of a chassis like Ive seen someone else do is not pleasing to see lol
I had a look actually to see what the total dissipation of the V2 would be but didn't see that, I expect its just the total of the power thru the Fets and the Diodes.
Your using a copper heat-spreader ? I think I will go with this
"The little lips on the edge of the extrusion, the outermost fins, can also be used for heatsink alignment using two thin pieces of aluminium and a bolt - a 'lock', so to speak."
Yes, Ive seen magmas build or some of it, good idea. Cheers
The good thing is I don't think the amp would really pick up much from the fan noise unlike some amps. Yes It would be nice to try and Up the Bias, however Ive heard a Turbo at half suggested Bias and even that sounded amazing to me compared to the original F5. Which makes me remember Nelson Said in the V1 Turbo that its more authoritative and that's exactly what I liked, but weather the V2 is more authoritative compared to the original 25w F5 I don't know but I have a feeling that's partly Why I liked the Turbo more. And Im not a man who usually cared about power or authority, I do love the Class-A sound and this F5 Turbo V2 has blown me away. So im here to try the build a second time now.
Yes Fan Controller, Brill. Im having to write all this down (Never do usually) lol
Wish I knew.. mine was from Ebay.
They are lovely sinks so I had to snap them up, there are others out there with pretty fins like this to be found.
I do wonder about what the difference in sound between V1 and V2 is. But seriously most people don't need more than 50w Class-A.
Its sound im into not how loud it is
however if the V3 sounded better then an upgrade would be due lmao
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If you want to buy manufacturer direct, you can send a personal message to magma on the forum. He procures mine - and builds my cases as well
and would know who you can talk to for finding either an European distributor (at best) or a similar thing from somewhere in Europe.That's not the back, that's the front, and that's my build I think you're talking about
The idea is to get the front into clean and cool air. The rack they mount on to is customised for those specific cases and hopefully I will upload a decent pic in some time.
That's not the back, that's the front, and that's my build I think you're talking about
The idea is to get the front into clean and cool air. The rack they mount on to is customised for those specific cases and hopefully I will upload a decent pic in some time.
haha
ok lets just call it personal preference, looks great btw. I think ill try another way Great stuff, want to see pics of all your amps
I have bought heat sinks from him. The owner is gentleman and helpful for audio enthusiasts. Personally drove to collect mine and for few friends.
Sent from my iPad using Tapatalk
And if you're in the USA there is Extruded Aluminum Heatsinks from HeatSinkUSA
They had the big sinks at 100mm wide that I neede and they cut my sinks to exact length and flycut the ends smooth. Shipping costs could be a problem outside the NA continent. They may be aluminum but they are not light. I had 24 kilos of sinks for my 2 monoblocks.
They had the big sinks at 100mm wide that I neede and they cut my sinks to exact length and flycut the ends smooth. Shipping costs could be a problem outside the NA continent. They may be aluminum but they are not light. I had 24 kilos of sinks for my 2 monoblocks.
I gave up looking.
New are very expensive. Secondhand just took too long to see any that came along in my patience scale.
This Guy on ebay has a couple, Sorry But Ive purchased the best ones off Him but Ask him and he may have more, the Size I just got. Actualy Ill ask him.
1600sport | eBay
1600sport | eBay
Has anyone thought about P2P wiring a Turbo ? Also do we recommend the Diyaudio boards for monoblock F5t ?
and how about stacking sinks ? I'm thinking of making long tall ones and perhaps building them into speakers and building cabinets around them, with perhaps air cooling tunnel. tell me if I'm mad ?! Issue is the heat and the way it rises I guess.
For now they are helping (quite well) cool my Hiraga 20W
and how about stacking sinks ? I'm thinking of making long tall ones and perhaps building them into speakers and building cabinets around them, with perhaps air cooling tunnel. tell me if I'm mad ?! Issue is the heat and the way it rises I guess.
For now they are helping (quite well) cool my Hiraga 20W
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Stacked heat sinks won't be as efficient as unstacked. Use one of the calculators, such as the one on Aavid's site to demonstrate. You lose about a third of the heat rejection capability stacking two identical sections. (like doubling the length) Your stack of three would be roughly the same thermal resistance to ambient as 2 arranged side by side. It may not be a problem considering how big they are, but be aware of potential gains.
The circuit isn't that complicated, but as long as proven boards are available, why would you wire PTP? Much less chance for something to go wrong.
The circuit isn't that complicated, but as long as proven boards are available, why would you wire PTP? Much less chance for something to go wrong.
Why handwire when there are such good PCB available?
Yes, the diyAudio boards work for monoblocks.
Today I've built a little box with a dc filter, because I was worried about the mechanical hum of my transformers. It fixed the occasional "very loud hum" which happened throughout the day, but didn't fix all the humming.
I have a pot of epoxy resin suited for potting electronics here. Do I remove the plastic outer screen from the transformers before I flood them with the epoxy?
I have a pot of epoxy resin suited for potting electronics here. Do I remove the plastic outer screen from the transformers before I flood them with the epoxy?
Here are before and after shots of twisting P3 a little, at 2 watts. Just one turn or so. The connection to the QA400 analyzer was made with a banana to BNC connector and an second banana jack to supply an 8 ohm load, and resistor divider network.
The divider network consists of a 1K in series with a 270 ohm resistor. Note the input signal strength. The pics at 2K are better but this is 1K anyway. I do not know if this is as low as you can go.... I forget if twisting P3 requires changes P1/P2 changes as well.... It would not surprise me..
Must I go back in and rebias now?
Oh yeah, just to let you know, most of the internal wiring for the amp was sourced at Home Depot... it's stripped 14/3 Simpul 14 awg home wiring. about a buck a foot, for 4 conductors ( incl. an uninsulated wire ).
The divider network consists of a 1K in series with a 270 ohm resistor. Note the input signal strength. The pics at 2K are better but this is 1K anyway. I do not know if this is as low as you can go.... I forget if twisting P3 requires changes P1/P2 changes as well.... It would not surprise me..
Must I go back in and rebias now?
Oh yeah, just to let you know, most of the internal wiring for the amp was sourced at Home Depot... it's stripped 14/3 Simpul 14 awg home wiring. about a buck a foot, for 4 conductors ( incl. an uninsulated wire ).
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Potting the transformers stopped all the mechanical noise. With music playing you would not notice the hum but it was annoying when the music stopped.
You can also soft-mount the transformer(s) so that the vibration is not transmitted so much to the chassis - it's usually the chassis that's making the noise, vibrating from the vibrating transformer. Rubber sheets under the transformer and grommets through the bolts etc can be very effective at reducing the noise. It's ok for the transformer to be able to move a *little* in this mounting. EUVL did this in the F5X.