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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Posted on Jan 02, 2017

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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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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

1 Answer

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

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Blue led problem in alesis mk1 active


I dont think its anything to worry about, if the unit didnt turn on at all or the LED flickered then you would need a capacitor or 2 changing; check here; http://www.neufeld.newton.ks.us/electronics/?p=232

Apr 18, 2009 | Alesis M1-Active-MK2 Powered Studio...

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

ALESIS M1 ACTIVE MK2 CONE VIBRATION!


Hello!
my speaker Alessis M1 Active 620, with a roar is very strong in the speaker, the potentiometer does not attenuate, change the volume. Ja switched capacitor C8, based on my research of other users, but got no result. When you press the power button, the LED lights in blue, and even change the color to red, producing a noise (snoring) very strong.
help!
Please help me!

Mar 17, 2008 | Alesis M1-Active-MK2 Powered Studio...

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