Question about Alesis Monitor One Mk2 Speaker

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Mk2 speakers Wont come on with power. Light not on. Matching speaker works ok

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  • Anonymous Dec 24, 2008

    Same exact problem as the other guy - one of the speakers just stopped turning on without any previous problems.  

    I opened up the speaker and switched the fuse from the one that didn't work with the one that did, and it didn't change anything.  It's not the fuse.  

    Also, my friend who is good with electronics said that the transformer was getting power, even though the speaker itself wasn't working.


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Is it the m1 active mk2???if so try changing the fuse in the power supply..i know my ones the light started to flash on one,i switch it off with a fan on it for 20 mins and it works i just leave it on now.

Posted on Nov 27, 2008

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I lost the treble on both Alesis Monitor 1 speakers. The treble is good on the amp output toward the speakers. I'm thinking they went out one at a time and I didn't realize it until I lost the...

It's probably blown tweeters. But if you want to spend the money on a hipshot guess, try to find the the crossovers somewhere first; then find the readily available tweeters if/when that doesn't work out. Google "alesis monitor one MK2 tweeter".

You could test the tweeters by just removing one non-functional tweeter and wiring it directly to the speaker leads and with REALLY LOW volume containing NO BASS see if it makes any sound, which would prove it does/does not work.

Going forward, if the speakers sound stressed at high volume - THEY ARE. Too much power or too much distortion (overdriven amplifier) will kill speakers.

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Your Amps' output section has shorted. Don't connect any other speaker to it, till it has been repaired. It will burn out it too. In some sets this section will be of transistors, and in others, an IC will be used. Anyway it has shorted and has to be replaced. OK.

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When ii turn the speakers on the blue light just keep flickeriing band no sounds is coming through

Check all connections and also make sure the polarity of your speakers are correct,(+ to + , - to -), look to see if you have used the speaker output for sound also. Sometimes the plugs look the same but go to different outputs.

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1 Answer

One speaker fell ... no sounds ?? can it be


Most likely, if the LED is still functioning on the speaker, then an internal connection has simply come loose. If you use a screwdriver to remove the woofer (the large speaker) you will gain access to the inside. You should be able to both easily see the loose connection and reach it to plug it back in.

A little less likely, but also possible is that a part of the internal circuitry is broken. But, usually in those cases, the light stops working as well.

I hope this helps.

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Hi, This is usually the Capacitor C8 on the powerboard it usually bulges and pops, its becuase its right next to a resistor which gets very hot and sometimes puts the capacitor into meltdown, yours might have gone past that stage but this is worth a look;

Hope this helps



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You need to take a closer look really, see if anything on the power supply board inside has melted, burned, popped, etc.

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1st, if you want a new speaker(just the sub, not the cabinet), ask Mackie for the nearest dealer.
2nd, If you want to have the speaker reconed, I can recommend :

Central Florida Speaker
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They do good work.

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