I’m honored to have partnered with @Nelson Pass to incorporate the PASSdiy logo into a Modushop chassis. We are offering this chassis for a limited time.
As you all know, Nelson is incredibly generous toward the DIY community. In honor of his love of animals, we will be donating 10 Euro from the sale of from each chassis to support animal rescue through the Canile Comunale di Bologna (Bologna’s local dog shelter).
I’ve visited the location personally, and their efforts to care for animals in need and find them forever homes is heartwarming. You can learn more through their Facebook and/or Instragram pages and through the Bologna City Hall.
Bologna City Hall
The chassis itself is a 4U/400 Dissipante Deluxe. It includes the standard 4U/400 chassis components with heatsinks pre-drilled for UMS compatibility.
In addition, you’ll receive the perforated base plate and a pre-cut back panel designed for use with the diyAudio store back panel parts kit.
The back panel has two sets of holes compatible with Neutrik D-style jacks. It’s convenient for amplifiers using both XLR and RCA inputs, like the Aleph J. The front panel, featuring a CNC’ed PASSdiy logo, has two pilot holes for power indicating LEDs.
The chassis will work well with all First Watt style amplifiers and has plenty of heatsink for those that like to run their amps a little cooler or crank the bias a little higher. It fits the sweet spot right between the current 4U and 5U deluxe chassis.
We think they’re beautiful, and we hope you do also!
The price for each chassis is 319 Euro + VAT as applicable + shipping. The final cost of your order will be calculated at checkout.
Click below to pre-order your chassis. All critical dimensions and performance characteristics for the chassis can be found there as well.
Chassis Pre-Order
There is no limit to quantity, but again, this is a limited time offering. At the moment we don’t have plans to offer this front panel again. Pre-orders will be accepted through May 31, 2024. Chassis will be shipped in batches on a first-ordered, first-shipped basis directly from our factory in Italy.
Thank you,
Gianluca
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Finally ZM's size for all things FW!!
Fugly!!!

hope you'll have that faceplate as option permanently at Modu
Fugly!!!

hope you'll have that faceplate as option permanently at Modu
Thank you Gianluca and this fine community.View attachment 1296496
I’m honored to have partnered with @Nelson Pass to incorporate the PASSdiy logo into a Modushop chassis. We are offering this chassis for a limited time.
As you all know, Nelson is incredibly generous toward the DIY community. In honor of his love of animals, we will be donating 10 Euro from the sale of from each chassis to support animal rescue through the Canile Comunale di Bologna (Bologna’s local dog shelter).
I’ve visited the location personally, and their efforts to care for animals in need and find them forever homes is heartwarming. You can learn more through their Facebook and/or Instragram pages and through the Bologna City Hall.
Bologna City Hall
The chassis itself is a 4U/400 Dissipante Deluxe. It includes the standard 4U/400 chassis components with heatsinks pre-drilled for UMS compatibility.
In addition, you’ll receive the perforated base plate and a pre-cut back panel designed for use with the diyAudio store back panel parts kit.
View attachment 1296497
The back panel has two sets of holes compatible with Neutrik D-style jacks. It’s convenient for amplifiers using both XLR and RCA inputs, like the Aleph J. The front panel, featuring a CNC’ed PASSdiy logo, has two pilot holes for power indicating LEDs.
View attachment 1296498
The chassis will work well with all First Watt style amplifiers and has plenty of heatsink for those that like to run their amps a little cooler or crank the bias a little higher. It fits the sweet spot right between the current 4U and 5U deluxe chassis.
We think they’re beautiful, and we hope you do also!
The price for each chassis is 319 Euro + VAT as applicable + shipping. The final cost of your order will be calculated at checkout.
Click below to pre-order your chassis. All critical dimensions and performance characteristics for the chassis can be found there as well.
Chassis Pre-Order
There is no limit to quantity, but again, this is a limited time offering. At the moment we don’t have plans to offer this front panel again. Pre-orders will be accepted through May 31, 2024. Chassis will be shipped in batches on a first-ordered, first-shipped basis directly from our factory in Italy.
Thank you,
Gianluca
Order, placed, Really love supporting the dogs of Bologna too! Mille Grazie.
Jim
Those sexy blue lights are from a pretty cool FW amp glowing beautifully and singing beautifully.Finally ZM's size for all things FW!!

small engraving at back:
"Passed by Pass, allowed by Mighty ZM"
it'll sell as hotcakes
"Passed by Pass, allowed by Mighty ZM"
it'll sell as hotcakes
For the waveform on the front panel: I hope it has a negative phase 2nd harmonic!
😀
😀
I simply can't resist, it is so fugly!
And I like dogs as well, not only cats.
Ordered.
And I like dogs as well, not only cats.
Ordered.
I jumped at the opportunity to have one of these limited chassis. Thank you Gianluca (and everyone who helped) for making this awesome chassis available to all of us GreedyBoyz! Looks amazing!
I ordered one as soon as I saw this post even though I don't have anything to put in it 😂
Now comes the hard part, trying to decide which amp to build first.
Now comes the hard part, trying to decide which amp to build first.
I ordered one as soon as I saw this post even though I don't have anything to put in it 😂
Now comes the hard part, trying to decide which amp to build first.
@ItsAllInMyHead is going to have some suggestions about that very soon 😉
Hi Gianluca,
Can you please post some info about the new drill pattern? I recall seeing a photo of it somewhere but this thread seems not to have it. (Perhaps it was missed when the posts were moved.)
Thanks,
Dennis
Can you please post some info about the new drill pattern? I recall seeing a photo of it somewhere but this thread seems not to have it. (Perhaps it was missed when the posts were moved.)
Thanks,
Dennis
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