Question about Alesis M1-Active MkII Main / Stereo Speaker

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Opening up speaker enclosures

I have a set of Alesis powered MK2 Speakers and I would like to have them repaired.  They are not under warranty, so I don't have any issues in doing the work myself. Unfortunately, I can't seem to get them open, even though I've removed all of the screws. Is there a hidden trick to this or should I try harder. I ran an Exacto blade over the seals on the back, thinking that would loosen them, but have had no luck. If I decide to send them out, I was told by a repair shop what their hourly rate would be, and in order to keep the repair time down I want to know that they're not going to spend too much time trying to open them. Any info you could provide will be gratefully appreciated.

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Take out the screws that hold the tweeter in place and lift out the tweeter. There is a cover that hides the screws on the woofer. Its the one on the front with the Alesis name on. You need a small screwdriver or small blunt tool to prise it off. One off you will see the screws for the woofer

Posted on Jun 25, 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.

Sep 16, 2011 | Alesis Monitor One Mk2 Speaker

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Hi one of my alesis m1 520 speakers has a fault . it powers up ok but theres hardly any sound coming out . you can hear it but its very low


Try reversing cables between speakers just to make sure it's not cable or source. If it is a bad soaker, you'll need to contact Alesis for a local service center near you. Check w/ Guitar Center also, they have access to service.

Mar 10, 2011 | Alesis M1-Active MkII Main / Stereo...

1 Answer

How do i go about connecting the alesis monitor one mk2's to my my laptop? i do not have an amp and there are no cables or connectors with the speakers when they arrive


You can without an amp in between. They are non-powered speakers and need an amp to drive them. If you connect your laptop to a mixer, mixer to an amp, then amp to speakers THEN they will work.

Feb 19, 2011 | Alesis Monitor One Mk2 Speaker

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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.

Oct 06, 2010 | Alesis Monitor One Mk2 Speaker

1 Answer

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


Hello,

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.

Oct 08, 2009 | Alesis Monitor One Mk2 Speaker

1 Answer

Alesis M1 Active Mk2 Speaker won't Power Up


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; http://www.neufeld.newton.ks.us/electronics/?p=232

Hope this helps

Cheers

Steve

Apr 14, 2009 | Alesis M1-Active MkII Main / Stereo...

1 Answer

Alesis m1 mk2 active emits low pitch hum and does not work


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

Mar 13, 2009 | Alesis M1-Active MkII Main / Stereo...

1 Answer

Mk2 speakers


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 again..so i just leave it on now.

Oct 17, 2008 | Alesis Monitor One Mk2 Speaker

2 Answers

M1 Active Mk2 blows fuse as soon as it's turned on., I bought them second hand so not under warranty. Anyone have any ideas if this is easy/expensive to fix or should I cut my losses and get a new pair ?


hi i have exactly the same problem with mine .. there is some yellow **** like glue splattered around some parts and it looks like its meant to be there.. however round the large black capacitors its turned a darker yellow with spots of orange in it.. also one of black capcitors also apears to be buldgeing out the top a little bit like its expanded.. i dont know if this is the problem?

do u have any idear on where we can take them to get fixed and if its going to cost a lot of money? i live in leicestershire uk

Oct 07, 2008 | Alesis M1-Active MkII Main / Stereo...

1 Answer

Oops!


it could have triggered a signal to your powered speakers that was not able to handle it. you may busted your output stage (power amp) and went on standby protection mode.

Dec 29, 2007 | Alesis M1-Active MkII Main / Stereo...

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