Breaking in 8" excursion woofer from MCM electronics

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cgsharp8
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Joined: Thu Oct 23, 2014 12:35 pm

Breaking in 8" excursion woofer from MCM electronics

#1 Post by cgsharp8 » Tue Dec 18, 2018 7:01 pm

Hello All, I need a reminder on the "how-to" of breaking in the subwoofer for my AT. Needed to replace the woofer after it was damaged trying to ship my AT. What all do I need to do to break in my knew one? The problem for me is I don't have a blank slate amp to power the speaker, BUT I have a guitar amplifier.... Could I use this to break in the woofer? Thanks for the help, and sorry to ask such a basic question :conf: :feedback:

-cgsharp8

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Tom Smit
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Location: Sarnia, Ont. Canada

Re: Breaking in 8" excursion woofer from MCM electronics

#2 Post by Tom Smit » Wed Dec 19, 2018 12:41 am

Run a 30 hz frequency through your amp. Plug a cable into your amp speaker output (no speaker connected at all) and measure the voltage. Adjust the volume until you get about 10 volts. Now connect the 8" driver to the speaker cable and run the signal for 12 hours (at 10 volts).
TomS

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Bill Fitzmaurice
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Re: Breaking in 8" excursion woofer from MCM electronics

#3 Post by Bill Fitzmaurice » Wed Dec 19, 2018 7:44 am

That order could fry the driver. Connect the driver first, then gradually increase the volume on the amp. Pay less attention to the voltage than to the cone excursion, which you want to see at about +/- 1/4 inch.

Rich4349
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Location: Kankakee, IL

Re: Breaking in 8" excursion woofer from MCM electronics

#4 Post by Rich4349 » Thu Dec 20, 2018 11:30 am

Don't bury the lede: I wanna see the woofer that has 8" of excursion!! :shock:
2 DR250s, 2 27" Lab15 T-60s, 2 30" Neo Titan 39s, 1 Autotuba...and looking for more!

cgsharp8
Posts: 28
Joined: Thu Oct 23, 2014 12:35 pm

Re: Breaking in 8" excursion woofer from MCM electronics

#5 Post by cgsharp8 » Fri Dec 21, 2018 7:32 pm

Thanks so much for the input! All is well with the woofer, sufficiently broken in!

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