4 of 5 ordered adapter cables are defective!

I ordered five copies of the adapter cable to relieve the headphone connector of my amplifier. The idea is to leave this adapter cable permanently connected to the amplifier and make the connections and disconnections of successive my helmet at the 6.35 mm jack.

On first use no worries, everything works fine, I decided a few moments later to connect another headset ... and surprise, the audio signal can no longer than the left side, I disconnect and reconnect the headset multiple times .. . same problem. I change my helmet ... still the same problem ... I remove the adapter cable and connect in turn the two headphones directly to the amplifier ... they functioning perfectly.

Therefore impossible to use a headset with the first adapter cable, as the cable in question is a "cast" no chance to check whether a defective weld is good ... I resign myself, a bad cable, it can happen.

However, I hasten to test other cables ... and one, and I mean absolutely one cable works perfectly, the other identically with the same defect, namely poor contact at the 6.35 mm jack.

Given the low cost of the cables I had a doubt about their quality, but I did not expect such disappointment.

You will therefore understand that it would be really difficult for me to recommend this product.

If we consider that on 5 controlled cables, one for me works perfectly, so it makes sense as 5 stars, I do not assign one!