20 Most Recent Audio Technica ATH-M50 Professional Headphones Questions & Answers

If you suspect they are damaged. call them back its your right as the consumer to find out whats wrong and what they can do to resolve this issue.

This is what I did after I couldn't find an answer online. Took the fat end, and kind of like a key chain ring, bent the last tiny bit where the spring ends. Then took this bent bit and then like a screw lead that into the jack end. From there just go in a circle and push the next bit of the spring into the jack end in a circle until all of the thicker spring part is back up and under the lip of the jack.

No, headphone burn-in is largly a myth. While it is possible, from a physics standpoint that the driver material could "break-in" some with use and age, the audible difference would be so slight that it would take specialized equipment to measure the differences, which would be so small as to be unrecognizable by human hearing. Any actual "differences" in sound quality over a period of time is largly based on perception, that is the user gets used to the characteristics of the device. This has been proven time and time again through double-blind tests.

If you have replaced the cartridge then it must be the cartridge pre-amp that is faulty. If there are any other functions on the device such as CD, then it will not effect them. Unless there is crackling on any other function then the pre-amp has a problem. The pre-amp itself is generally a single IC. You can find it by following the turntable connection back to the inside of the amp. The signals will pass through the IC before being passed to the main pre-amp.

Use an alternative device connected to the input the turntable usually connects to. If both channels work ok the new turntable is clearly faulty and should be returned under warranty.

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You should go back to the local repair shop and ask them to do the job right or to give you the money back you presumably paid. You have a legal right to have them fixed properly.

Having looked at the turntable it seems to mount the cartridge with two bolt like fittings. The Cartridge you want has two mounts on the side that will take those bolts. You will have to adjust the arm to compensate for the weight differences between the two cartridges, but once done it should play fine.