Mike Hanson
Trying to understand...
@paulski (not @James) mentioned that he really liked his Neurochrome Modulus-686. I'm between amp builds, so when I noticed that Neurochrome was based here in Canada, I couldn't resist the urge.
I received the package from them with everything appearing safe and sound. Here's my tentative layout:
I think this allows for enough space around the various connection points to make wiring a straightforward task.
The last amp I built for him had a big DPDT rocker switch to toggle between power inputs, but this time I've decided to alternate by swapping the wires internally. It's fewer holes to cut, and fewer connections inline. Both the powerCON and IEC plugs use the same size Fast-on spades, so swapping two connectors is a simple task. The earths for both will be connected permanently to the chassis.
Any thoughts or concerns?
I received the package from them with everything appearing safe and sound. Here's my tentative layout:
I think this allows for enough space around the various connection points to make wiring a straightforward task.
- As you can see, it's a dual mono, with a shared Neurochrome Intelligent Soft Start module and separate Power-686 boards. The input power will run straight along the bottom of the case to the ISS, with a pushbutton switch front-and-center to control it.
- I'm using a Modushop Dissipante 3U/400mm case, so the heatsinks should handle it. My mains often drift as high as 125VAC, so I'm using 400VA 2x22VAC AnTek transformers, just in case. The transformers are stand-ins, as I wait for the AnTek (which might be a bit smaller).
- I haven't decided yet whether to include thermal switches to shut off the amp at 65°C.
- I considered using a single Guardian-686 module, but decided that It would be easier for the layout if I had the two smaller Guardian-86 boards.
- Neutrik NC3FD-LX-B XLRs are on order, so I used RCAs to hold their spot.
- These modules take balanced inputs, but I was hoping to include RCAs as well. After discussing it with Tom Christiansen of Neurochrome, I'll likely forego them, but that could change if I determine a "good" way to do it.
The last amp I built for him had a big DPDT rocker switch to toggle between power inputs, but this time I've decided to alternate by swapping the wires internally. It's fewer holes to cut, and fewer connections inline. Both the powerCON and IEC plugs use the same size Fast-on spades, so swapping two connectors is a simple task. The earths for both will be connected permanently to the chassis.
Any thoughts or concerns?
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