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Please don't be mad at me, but your statement may lack some knowledge regarding the metals used.
These are cheap plugs for the hobby sector that do not have to withstand high mechanical loads. Therefore, a cheap and hard brass alloy can be used, which is completely OK, especially at this low price.
The breakage points/breakage pattern in your pictures are exactly the same as those of high-current plugs from industry and model making, so it is completely normal and not a point of criticism in terms of quality.
I once measured these plugs in our measuring device with 60 V and 10 A and the contact resistance was just as good as that of our 4mm plugs that we have manufactured for our high-current applications (industry).
The individual parts are well pressed together, otherwise the total resistance at 600 watts AC and DC would not be so low.
A very hard and therefore brittle material is very advantageous for such plugs, good contact and low contact resistance, especially compared to pure copper or soft brass alloys.
The mechanical durability is my primary concern with these components. The sintered metal construction proved surprisingly brittle, reminding me of old bakelite in how it fractured. I have specific worries about the expander taps breaking down over time, and the potential for set screws to create stress points that could crack the cable housing.
Given that there are reliable alternatives available at reasonable price points, I can't justify using or recommending these components.
The mechanical durability is my primary concern with these components. The sintered metal construction proved surprisingly brittle, reminding me of old bakelite in how it fractured. I have specific worries about the expander taps breaking down over time, and the potential for set screws to create stress points that could crack the cable housing.
Given that there are reliable alternatives available at reasonable price points, I can't justify using or recommending these components.
What are the cheaper alternatives in this design?
Most of these alternatives are made of just as brittle material, you just haven't tested it yet.
With pure copper plugs you have to be even more careful with the threads.
As I said, I already have some experience with these plugs and 2 sets where I have screwed in other cables at least 10 times, no problem.
A few thousand packages of them have already been sold on Amazon and Aliexpress, if not more.
I have no idea how much force you used to destroy the plug, but I definitely can't break it by hand. I have also removed the housing a few times due to space constraints, but it doesn't require any force, just a sharp cutter on the plastic seam.
I even know of a case where someone tripped over their speaker cable and knocked over a 40 kg speaker. Even then none of the plugs were broken, but unfortunately the speaker was.
What are the cheaper alternatives in this design?
Most of these alternatives are made of just as brittle material, you just haven't tested it yet.
With pure copper plugs you have to be even more careful with the threads.
As I said, I already have some experience with these plugs and 2 sets where I have screwed in other cables at least 10 times, no problem.
A few thousand packages of them have already been sold on Amazon and Aliexpress, if not more.
I have no idea how much force you used to destroy the plug, but I definitely can't break it by hand. I have also removed the housing a few times due to space constraints, but it doesn't require any force, just a sharp cutter on the plastic seam.
I even know of a case where someone tripped over their speaker cable and knocked over a 40 kg speaker. Even then none of the plugs were broken, but unfortunately the speaker was.
I'm not aware of any angled ones at the same price, but I would skip that and go for traditional types instead.
It's not the threads that concern me, but rather the housing cracking due to the metal's poor quality and brittleness.
With your description, I am completely certain that we are not talking about the same plug. There must be copies of varying quality. The ones I have would never withstand such a scenario without breaking.
To add, I broke the prongs using just my index fingernail -they snapped like thin plastic. The pin also broke at the end with minimal hand force. -Not pictured.
Yeah, I’m gonna keep mine. I understand ultimate mechanical stability is important. But hey, I rip my system maybe once a quarter apart. Sound is not compromised. They should last a lifetime.
Does anyone here have experience with angled banana plugs?
On some of my speakers the connections are quite angled and I would therefore like to use angled banana plugs to minimise the strain on the wires (Especially my upfiring Atmos speakers are really bad with normal banana plugs)
I had once considered the two styles and want to use them with Sommer Cable SC-Meridian SP240
Maybe there are some experiences (Would be nice if they are available in europe)
I use connectors that look similar to the SINNOXX connector. On my connectors, screwing down the knurled plastic ring pushes a pin down the centre of the 4mm split section, locking the connector to the speaker an/or amp.
If the SNNOXX work the same way I would recomend them.