Have some Alephj monoblocks.
I did not build them.
Wondering if it is possible to use all of the psu etc and try different designs in the same case, removing the aleph j boards.
The m2x look a similar size,and curious about what will fit.
Any help would be appreciated.
I did not build them.
Wondering if it is possible to use all of the psu etc and try different designs in the same case, removing the aleph j boards.
The m2x look a similar size,and curious about what will fit.
Any help would be appreciated.
Check the PSU +/- DCV - it should be around +/-24VDC - as are most Pass Class A designs. If so, yes you can swap in other Pass boards.
As long as the PSU is adequately rated - at least a 300va transformer and a good sized capacitance on the DC rails for smoothing.
As long as the PSU is adequately rated - at least a 300va transformer and a good sized capacitance on the DC rails for smoothing.
Thanks Gary.
Are the mounting holes the same on the pcbs and the mosfet/jfet spacings?
Hoping to not have to drill and holes in the casework basically 🙂
Are the mounting holes the same on the pcbs and the mosfet/jfet spacings?
Hoping to not have to drill and holes in the casework basically 🙂
Show some photos of the heatsinks and PCBs.
If the heatsinks are drilled following the UMS specification (https://cdn.shopify.com/s/files/1/1006/5046/files/universal-mounting-specification-v2.1.pdf ) then the store PCBs will work without additional drilling.
If the heatsinks are drilled following the UMS specification (https://cdn.shopify.com/s/files/1/1006/5046/files/universal-mounting-specification-v2.1.pdf ) then the store PCBs will work without additional drilling.
Looking inside, for the first time.
4x 47000uf Vishay capacitors.
The aleph j boards have been re drilled on some of the holes.
looks like this had to be done as holes didn’t fall between heat sink.
Suppose I could re- drill the m2x boards the same as long as dimensionally etc they are the same.
Attachments
They look like the Modushop mono chassis, so the heatsinks should be drilled to the UMS pattern. So other Pass pcb's will fit if purchased from the store.
Plenty of PSU capacitance there.
Here is the UMS spec:
https://cdn.shopify.com/s/files/1/1006/5046/files/universal-mounting-specification-v2.1.pdf
Plenty of PSU capacitance there.
Here is the UMS spec:
https://cdn.shopify.com/s/files/1/1006/5046/files/universal-mounting-specification-v2.1.pdf
Nice build. I don't believe those are the Modushop monoblock chassis however, since Modushop heatsinks have a 'wave' profile. That said, I believe the mounting holes for the M2x PCB is a subset of those of the store Aleph J PCB, so you should be able to M2x PCBs without additional work.
I would leave the AlephJ monoblocks as they are, as they are fine amplifiers. Just build M2X from scratch into new modushop case.