Question about Mission 780 Main / Stereo Speaker

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Removing Driver from Sealed Cab

Hi; I am trying to remove the driver from a Mission 764 Sealed Cab for repair and am having no luck.. I have unscrewed the 4 screws on the driver and the speaker remains rock solid in place. What am I missing.

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Re: Removing Driver from Sealed Cab

1. Remove the front cover.
2. Remove the four bushes that held it in place. Beneath them are crosshead screws.
3. Remove these screws, and the surround board they hold.
4. You can now see the bass speaker retaining screws. remove them and withdraw the speaker *carefully*. (A knife under the edge helps to get it going.) The wires are at the back mixed up with the damping wool.
5. The tweeter has its retaining screws under the rubber gasket stuck to it.
6. The connectors shoud slide off the lugs, but mine are pretty stiff. Careful with the tweeter's: mine pulled out the termnal completely, and I've had to replace the unit!

Posted on Mar 28, 2008

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Recently one of my mission 782 side bass driver has no sound, is it dead? Do you have any idea where i can get the driver to replace? and is it difficult to replace by myself?

Drivers are easy to replace in most speaker systems. There will be 'spade' type push-on connectors to the drivers. Here are contact details for the Mission service centre in the UK: They should be able to supply you with a replacement.

Sep 19, 2011 | Mission 782 Main / Stereo Speaker

2 Answers

Hi, I have a Mission M5AS Sub and for some reason it has just stopped working. The power light is on, but it doesn't become active when music is played. Simple to resolve or a job for Mission? Any...

Hi, yes there is a rather simple method for testing the actual subwoofer unit, simply plug in a known good rca cord into the input-make sure if there is a switch for level input that it is on the back make sure it is switched to line and not level, next plug in rca cord, turn on unit-stick tip of finger on tip of rca cable. This should gernerate a"HUMM" in the subwoofer if everything is working correctly. Thanks for choosing FixYa, I hope this was of some help,good luck Prodzilla.

Apr 13, 2011 | Mission M5AS Subwoofer

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Do i have to remove the pin between the two speaker treminals on my old mission 780 speakers before i bi wire them

Yes, the two sets of terminals are for the tweeter and bass driver.

When you bi-wire you want the low frequencies to go only to the bass driver and the high frequencies to go to the tweeter..

Please see this link for more information:

Please rate my answer if you find this useful.



Mar 02, 2011 | Mission 780 Main / Stereo Speaker

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I bought replacement drivers for Mission 780 do I replace visible screws...does the cover plate come off?

Screws are hidden under the plastic plugs where the covers slot in. remove cover, then maybe use a pencil and fingers to prize out the rubber "holes". Once all four removed, unscrew the four screws visible. Carefully lift off baffle, note that tweeter will be attached to the baffle. You then have easy access to the driver, again another four screws holding that in. You may find erosion on the terminals.

Jan 10, 2010 | Mission 780 Main / Stereo Speaker

3 Answers

Need to Replace the drivers on Mission 782 speakers.

Unless the company that made the speakers machined the allen screws themselfs, I'm sure any standard or metric allen set will work. Just becareful of the bracket because it may be glued to the speaker frame or there might be a gasket between the 2.

There will be a some wires coming from the crossover that will lead to the tweeters and to the woofer. They are terminated with female connectors that will slide on to the male end on the speakers. If the speakers that you are getting are from the same manufacture, then they should have the same fittings. If not, you may have to replace the females to match. It's a simple strip and crimp process.
Just make sure to mark the wires so you know which one is pos and neg. If you mix them it will throw your speakers out of phase and they won't sound right.
Hope this helps.

Mar 24, 2009 | Mission 782 Main / Stereo Speaker

1 Answer

Mission 764 wire connections

Yup, Thats about the shape of it - use a nice think solid core copper mains cable. That's waht was fitted to my recently retired 764's when I bought them new many moons ago.

Jan 04, 2009 | Mission 780 Main / Stereo Speaker

2 Answers

Mission 752F blown driver

I would try ebay first. If not follow this link to see if they can help you out. Mission ltd is located in the uk.

Nov 28, 2008 | Mission MS752F Speaker

3 Answers

Midrange faulty

I've had the same problem/s. A manufacturing fault with the original midrange drivers of all of my Mission 780's and 782 speakers. If you contact Mission through their website they will supply an updated style driver for about £45, I would recommend buying 2 because the other one will fail eventually, if like me you use them every day. All four failed within two years of each other.



Aug 04, 2008 | Mission 782 Main / Stereo Speaker

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Mission speakers...i think i've blown one of them...

I'm guessing you mean one of the bass drivers (as standmount or floorstanding speakers don't have subs as such). Place your hand lightly against the driver when playing some music at normal volume, there should be some vibration (this increases the louder you play). If there's no vibration, you're probably right.

Contact Mission, who can send you a new driver, contact a Mission dealer to see how much it'll cost to go through the dealer network. I'd recommend going down the latter route if you are unsure of what to do yourself.

Just noticed you posted this in March, in which case, I hope you got it fixed (or are enjoying your new pair instead!).

Mar 18, 2007 | Mission 702 Speaker

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