Hi again pico, I am still in for one chassis - maybe you need to specify exactly what you want to order so other members can have some idea of what they are signing up to. At the moment reading this whole thread has me confused as the original concept has changed a bit.
Please spell out exactly what you want to order with regards to specs - and at this stage we still do not have a cost either.
Please spell out exactly what you want to order with regards to specs - and at this stage we still do not have a cost either.
Good suggestions.
Yeah, I was hoping that the diyaudio store was going to jump on board with this but there was so much resistance to any improvements or corrections, it just seemed easier for us to do it together.
I need to reevaluate everything.
We can't get a price to will we agree on a final design, I was hoping you guys would be part of the design process, so that you would be happy with the end result.
A deluxe 5U x 400mm case is $400 USD + shipping
I would imagine a 4U x 500mm case is going to be near the same figure, if it were made by modushop.
Yeah, I was hoping that the diyaudio store was going to jump on board with this but there was so much resistance to any improvements or corrections, it just seemed easier for us to do it together.
I need to reevaluate everything.
We can't get a price to will we agree on a final design, I was hoping you guys would be part of the design process, so that you would be happy with the end result.
A deluxe 5U x 400mm case is $400 USD + shipping
I would imagine a 4U x 500mm case is going to be near the same figure, if it were made by modushop.
I seem to be an outlier regarding the perforated floorplate and heatsink hole pattern. That’s Ok. I’m willing to pay for a couple extra features if we can get the new chassis configuration a little quicker. My main project for this is a SIT-3X, which doesn’t conform to any hole pattern. There’s also a good possibility that I may need to add features that increase the thermal capacity, but I’m used to doing that. This is still the best fit for how I would like to build that amp.
This input is appreciated.
We can work with 2 heatsink options
1) Proposed upgraded UMS drill pattern with tapped holes.
2) Undrilled
The same as the floor plate
1) With perforated steel Floor Plate
2) Without Floor Plate
I don't see this as a problem since the second option in both cases requires nothing additional.
We can work with 2 heatsink options
1) Proposed upgraded UMS drill pattern with tapped holes.
2) Undrilled
The same as the floor plate
1) With perforated steel Floor Plate
2) Without Floor Plate
I don't see this as a problem since the second option in both cases requires nothing additional.
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Hi pico, I am happy with what you want and can adapt with any minor changes.
What do you propose for any holes on the front panel - and the same question for the rear panel?
What do you propose for any holes on the front panel - and the same question for the rear panel?
Hi Gary
Regarding front panel.
I don't think we need all the extra blind holes (that would save some cost) in the front panel.
If someone had a specific need for some blind mounting holes in the front panel we can accommodate it. I am open to ideas.
We only need to decide whether we want blind construction/assembly holes or whether we make it look like the XA25 front panel for example with exposed bolts.
I usually make my cases with exposed counter-bored hex socket bolts.
Regarding front panel.
I don't think we need all the extra blind holes (that would save some cost) in the front panel.
If someone had a specific need for some blind mounting holes in the front panel we can accommodate it. I am open to ideas.
We only need to decide whether we want blind construction/assembly holes or whether we make it look like the XA25 front panel for example with exposed bolts.
I usually make my cases with exposed counter-bored hex socket bolts.
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As of right now, it seems we have 3 or 4 people still interested.
It would be nice to know we definitely have 10 people interested.
Don't want to invest hours and hours into this if I am going to be thrown under the bus.
It would be nice to know we definitely have 10 people interested.
Don't want to invest hours and hours into this if I am going to be thrown under the bus.
If it's of any incentive to anyone. Once we have the case design finalised, I will do a couple of killer Class A amps that will make use of the heatsink features.
Here is one of my cases. Coincidentally it's actually the same width as Modushop case.
As you can see it would be extremely tight to try and do a dual mono setup using decent sized transformers (running across the front of the amp), the size you might want to use in a killer Class A amp, as well as fit two power supply boards etc.
It's going to be better making this case a decent width so you don't have regrets later. 450mm wide is a touch too narrow.
As you can see it would be extremely tight to try and do a dual mono setup using decent sized transformers (running across the front of the amp), the size you might want to use in a killer Class A amp, as well as fit two power supply boards etc.
It's going to be better making this case a decent width so you don't have regrets later. 450mm wide is a touch too narrow.
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An upgrade I would have liked for my Deluxe 5U which I use for my M2X mono blocks is a 3mm steel back panel insted of the standard 2mm to make it a bit more stiff for these large chassis.
Do you mean bottom panel or back panel?
I agree making things solid is very worthwhile.
In my case I am using 4mm Aluminium panels.
I agree making things solid is very worthwhile.
In my case I am using 4mm Aluminium panels.
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I would suggest to not change the standard dimensions or the thickness of the panels as this would increase costs and would require an even higher number of units to not make it super expensive.
I am still interested in a chassis with: "500 mm" baseplate, deluxe backplate and "picoUMS" heatsinks.
Standard 3Ux500 (in silver/black) and Standard 4Ux500 (in silver/black) chassis as well as 500 deep Dissipante baseplates have now been added to the store. These are pre-order items, expected to start shipping October 25th. After that, provided there is interest, they will stay in stock as a standard item until sold out or demand is proven to be too low to do another run.
Deluxe versions of those, with UMS heatsinks may become available in the future, once the expanded UMS 2.0 specification (Currently looking like 2Ux200, 2Ux300, 3Ux300 Hybrid, 3Ux500, 4Ux300, 5Ux400) is agreed upon. UMS heatsinks take up a lot of space in Hifi2000's shelves so any additions will be made with consideration. Pico's latest pattern looks pretty sexy to me. It's elements may well (or may well not) make it into the UMS in the future.
In the meantime, I recommend anyone interested in the "PicoUMS" or what he is doing to wait for Pico to finalize his specification and jump on board his custom order. It's a great opportunity to get a custom chassis made at a lower price than normal. The fact that we have now taken the risk ourselves and committed to a production run using a full bar of material means that if Pico does place an order, the price will be as low as possible regardless of how many people commit (provided everything else other than the drilling and tapping is kept standard, as soon as parts are non-standard and cannot be pulled from the shelf, things get more expensive).
A final note about the F6 PCB. PCBs are designed according to the UMS specification. Not the other way around. I haven't had a chance to ask the designer yet if they either intended for the F6 to be used on the 5Ux400, or if they did but the effect of the asymmetry was not of a concern to them. The designer was fanatical enough about symmetry that they insisted the board pair was mirrored. Whatever answers might arise from such an investigation, I do feel strongly that "the cart should go before the horse".
A note will been added to the F6 PCB sales page to let people interested in that PCB know that the 4Ux300 chassis is recommended for that PCB, as well as about the asymmetry issue when using it with the 5Ux400 chassis' split heatsinks. People can then make an informed decision.
So, the ball is now in everyone else's court. You can pre-order a standard 3Ux500 or 4Ux500 right now if you like, optionally adding the Deluxe rear panel substitution for the 4U. And because this production run of the heatsinks is going to happen no matter what, this is an ideal time to get a PicoUMS 4Ux500 at a much better price than if it was an out-of-the-blue custom order.
Lastly, you could wait and hope we eventually release a 4Ux500 UMS, but I stress there is no commitment that this will ever happen. If you want a 4Ux500 PicoUMS, jump on his custom order while you have the chance.
Deluxe versions of those, with UMS heatsinks may become available in the future, once the expanded UMS 2.0 specification (Currently looking like 2Ux200, 2Ux300, 3Ux300 Hybrid, 3Ux500, 4Ux300, 5Ux400) is agreed upon. UMS heatsinks take up a lot of space in Hifi2000's shelves so any additions will be made with consideration. Pico's latest pattern looks pretty sexy to me. It's elements may well (or may well not) make it into the UMS in the future.
In the meantime, I recommend anyone interested in the "PicoUMS" or what he is doing to wait for Pico to finalize his specification and jump on board his custom order. It's a great opportunity to get a custom chassis made at a lower price than normal. The fact that we have now taken the risk ourselves and committed to a production run using a full bar of material means that if Pico does place an order, the price will be as low as possible regardless of how many people commit (provided everything else other than the drilling and tapping is kept standard, as soon as parts are non-standard and cannot be pulled from the shelf, things get more expensive).
A final note about the F6 PCB. PCBs are designed according to the UMS specification. Not the other way around. I haven't had a chance to ask the designer yet if they either intended for the F6 to be used on the 5Ux400, or if they did but the effect of the asymmetry was not of a concern to them. The designer was fanatical enough about symmetry that they insisted the board pair was mirrored. Whatever answers might arise from such an investigation, I do feel strongly that "the cart should go before the horse".
A note will been added to the F6 PCB sales page to let people interested in that PCB know that the 4Ux300 chassis is recommended for that PCB, as well as about the asymmetry issue when using it with the 5Ux400 chassis' split heatsinks. People can then make an informed decision.
So, the ball is now in everyone else's court. You can pre-order a standard 3Ux500 or 4Ux500 right now if you like, optionally adding the Deluxe rear panel substitution for the 4U. And because this production run of the heatsinks is going to happen no matter what, this is an ideal time to get a PicoUMS 4Ux500 at a much better price than if it was an out-of-the-blue custom order.
Lastly, you could wait and hope we eventually release a 4Ux500 UMS, but I stress there is no commitment that this will ever happen. If you want a 4Ux500 PicoUMS, jump on his custom order while you have the chance.
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Hi Gianluca
I was thinking it would be cool if we had a C section piece of steel, say folded from 2mm or 3mm sheet steel that ran right across the front of the amp eg say 360mm x 155mm x 120mm wall height.
The transformer/s and rectifiers would effectively sit in their own shielded compartment isolated from the rest of the chassis.
Maybe I need to draw this.
Basically two bends and maybe a couple of mounting holes
Is this something you could do?
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i mean the back panel that has speaker binding posts, IEC power connector etc.