Ice Power 125ASX2 Amp

I bought 2 Ice Power 125ASX2 amp modules from jhaider a while ago and finally got one amp put together. I bought a pair of Ghent Audio cases to house the amp modules.

Ghent Case

The Ghent cases are very nice but I did have a few issues. They come without any instructions and while most things are pretty straight forward the power switch installation isn’t. The holes for the rear panel speaker terminals are oversized and I had to 3D print some spacers to get them centered in the hole. The internal AC power wiring that came with the case had crimp on spade terminals that were too small for the rear panel power plug terminals. Fortunately the modules from jhaider had some longer power cables that I could put the right size connectors on.

I found a post online that had some great pictures of how the case and wiring went together which helped a great deal on figuring out how everything went together.

Post with assembly pictures



I hooked it up to me audio generator and and a woofer and got nothing. I traced the problem to the inputs not driving the corresponding output. I’m not sure how that happened because I tried to be really carful with that part of the wiring. It’s fixable but not easily fixable since everything is soldered and the other ends are connectors. Speaking of soldering you’ll need a big soldering iron for the speaker connectors. The biggest iron have have is 75 watt and it was barely enough.

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Gotta pull out the big guns (literally)

They come in handy when soldering to the big binding posts or connecting a bunch of speaker wires together as a ground point.

Ron, you can at least just move the connector, right? Who cares what color as long as they are labeled correctly. You could just black out the red and white.

I think an easier option would be to swap the speaker terminal in pins in the output connector housing. You can carefully pull up a tab, while pushing the connection pin in, and then remove the pin from the housing.

The connectors are both keyed and only go one way.

That’s actually what I just did. I think the crimp and fat wires made it hard to remove the speaker wires. The input connector is harder to work with but the wires could be removed.

For those who don’t know what we’re talking about, this is the speaker connector. The pin is held in by the spring clip indicated by the red arrow. You can remove the pin by pressing in on the clip while pulling on the wire.

The pins on the input connector are held in by the plastic piece indicated by the red arrow. You can remove the pin by prying up on the plastic tab with something like the end of the Exacto knife while pulling on the wire.

Connectors with round pins need to have a tool with a hollow tube on the end to push the spring loaded tabs that hold them in.

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For me a sewing needle or two has usually sufficed for depressing the tabs on most connector pins, including the round ones.

Glad to see those modules getting used!

I’ve done it with a little precision flat head screwdriver. It’s not my favorite thing to do but it is quite doable as long as you are careful not to crush the receptacle.