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DIY Beyerdynamic T1

post #1 of 10
Thread Starter 

Hi all, I've been wondering about the feasibility of changing my DT990 600 ohms drivers for a pair of T1 drivers. They both seem to have the same cup size and the same locking ring. The only differences are that the the DT990 is fully open while the T1 is semi-open and the DT990 has damping on the back of the cup (easily removable) while the T1 doesn't have any damping. Some people mod their T1 to add damping so keeping the DT990's stock damping could be a good idea.

 

I am really tempted to try it out and order a pair of replacement T1 drivers from Beyerdynamics. What do you think about this?

post #2 of 10
Thread Starter 

Can anyone confirm that the cups are the same size? 

post #3 of 10

Can't help you here, but I'd love to hear your results. How much do the drivers cost? 

post #4 of 10
Thread Starter 

A pair of T1 drivers from Beyerdynamic-USA is $259.67. 

post #5 of 10
Thread Starter 

The mod might have better results with the DT880 as it is semi-open like the T1. The T1 just looks like a DT880 with premium materials and better drivers. I am pretty sure that both cups have the same resonance.

post #6 of 10

Well I guess it is cheap enough to try. 

post #7 of 10

Actually a great idea :O 
Wonder if someone with DIY skills can replicate (or even improve on) the T1

post #8 of 10
Thread Starter 

I guess I could. I built my O2 amp and my Grubdac (SMT soldering) and did some other electrical projects. The downside is that I don't have a proper head microphone so I won't be able to do a frequency graph to compare it to the T1. There is an accoustic department in my faculty and I will try to see if there is something I could use to do that.

post #9 of 10
Thread Starter 

On the other hand, it would be sad to waste a pair of perfectly good working DT990 600ohms drivers. I don't think there is a market for used drivers. I migth wait until one of the drivers fail to try this mod. 

post #10 of 10

Get the drivers and machine out the cups and the headband assembly , short and simple 

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