20 Most Recent Mission 780 Main / Stereo Speaker Questions & Answers

If these are Mission 780s your talking about, you're not the only one. The woofers supplied with the speakers originally have a known design/manufacturing flaw causing them to go "open circuit" after a few years use. The good news is that IAG (who now own Mission) can supply you with a pair of replacements for about £45 plus postage. (You'd be forgiven for thinking they should supply the replacements for free given the cost of these speakers new and the fact this is a design/manufacturing fault). Replacing your woofers is easy. Take off the front baffle. Remove the four rubber plugs that the baffle attaches too, and take out the 4 screws you'll find behind them. Now ease off the plastic moulded front pannel. Remove the four screws holding the woofer in place. Pull the spade connectors from their tags on the back of the speaker. Put the new woofer in by following this proceedure in reverse.

Try them on a different position, Like the rear, Front channel might be blowin on amp, Or the speakers them self might be blowin,

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:
http://www.brilliancehifi.co.uk/how-to-bi-wire-speakers.htm

Please rate my answer if you find this useful.

Thanks,

Chris

yes

Do not remove the brass plates! These work as a bridge between the connections, making them a universal speaker. You only need one input. The other input should say "Bridge", which is an output to the other speaker, allowing you to run these speakers as monitors or subs. The bridge option runs both speakers on the same channel, making it a mono signal, so if they are used as monitors, everyone hears the same thing. If they are used as subs, equal power goes to each, reducing the chance of a blown speaker.


Hope that helps! Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cameron_463100ffd54b591d

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.

Hi there.
Do you have the make and number on the back of the magnet?
Check if the tweeter is at all available on the net!
To have it repaired is also an option.
Iceman.

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.

i had the same thing it is a problem with the flux that was used on the drive cone to connect it to the outer case had this with both speakers change the drive cone.

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!

You may be confusing an ordinary sub with a powered one.

take yours out of car or as steve stated

.............................................