Beyerdynamic DT990 Pro Repair

Today for in our work station, we have an old top of the line Beyerdynamic DT990 Pro headphones. This headphones is used to be the flagship model of the Beyerdynamic DT line up, way before Beyerdynamic introduce their Tesla drivers.


Before working on the headphones, I had a test drive with it with my desktop setup. This headphones have a great soundstage and tons of lows but I personally don't quite like it's spiking mid-highs though. One might describe it as a well improved DT770 pro. Due to it's old age, it's 3.5mm connector gold plating had worn off and the internal connection is loose. To fix this, we will need to replace the 3.5mm connector.


After stripping the cable PVC sleeve we can see it has 3 internal wiring and this reminds me that amazingly at this price point, Beyerdynamic opt to use cables that have PVC coating for the internal wiring which most headphones at this price or even higher doesn't have this.


The internal wiring is colored as well, it makes thing even easier to repair. For those who are interested, Black is for ground, Red is right and White is left.


For this unit we are going with the budget friendly Copper Color 3.5mm gold plated connector, the color of the connector matches well with the cable but I personally think it would look even better with a beefier connector since it has a beefy looking coiled up cable.

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