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  1. #1
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    Question 'Running in' new drivers..

    Hi all, loving my Mission 770Fs fresh from Mission Service, was advised "no loud volume at first as drivers are new..!"
    I don't go mad with the vol control but how long is a running in period..?

    Paul/runt

  2. #2
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    Quote Originally Posted by runt
    Hi all, loving my Mission 770Fs fresh from Mission Service, was advised "no loud volume at first as drivers are new..!"
    I don't go mad with the vol control but how long is a running in period..?

    Paul/runt
    This is a big source of debate in the audio world. Some people claim hundreds of hours, some claim no time at all.

    I've personally measured noticeable differences in the T/S parameters of drivers after only 15-20 minutes, but after an hour or so the differences began to fall within the range of tolerance of my measurement equipment.

    I suppose where there's moving parts, at some level the driver is always breaking-in but after a few hours you've probably done the most "run-in" work.

    Don't be afraid to turn it up to safe volumes that you could use once the speaker was fully run-in though. Louder volume might help break in the suspension a bit better? It shouldn't cause any damage that if it's within its recommended operating parameters. Remember, if things start to sound funny or bad, just turn it back down.

  3. #3
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    Smile

    Thank you sir, funnily enough I am already noticing an amazingly clean h/f, the tweeters were found to be fine but they fitted new diaphrams the lack of any harshness compared to my old 737R is stunning, as you advise I will progressively increase vol over the coming days, I have a Cambridge 640C v2 as source, with the NAD 3150 int driving them, hopefully a good signal.

    Paul/runt

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