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Thread: Alesis M-EQ 230

  1. #1
    Senior Member Val's Avatar
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    Alesis M-EQ 230

    I just picked up an Alesis M-EQ 230 at a neighborhood garage sale for a cool $20. Power's up fine but I've not run signal through it yet. Two channels, 31 bands, unbalanced signal path. Per manual: HARMONIC DISTORTION .004% @ 1KHz @ 0dBV. Sounds too good to be true. I'm hoping to hook it up today.

    Any opinions on this one?
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    Senior Member 1audiohack's Avatar
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    I have two, one in my bedroom system and one on the shelf. There's definitely better, and definitely worse units. Working properly they are dead quiet and certainly worth more than what you paid for that one. The power supply costs that much.

    Have fun!
    If we knew what the hell we were doing, we wouldn't call it research would we.

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    Senior Member Val's Avatar
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    Quote Originally Posted by 1audiohack View Post
    Have fun!
    I plan to! Your comments are helpful. I started playing around with it yesterday and it seems to work well.

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    Daisychained

    Quote Originally Posted by 1audiohack View Post
    I have two, one in my bedroom system and one on the shelf. There's definitely better, and definitely worse units. Working properly they are dead quiet and certainly worth more than what you paid for that one. The power supply costs that much.

    Have fun!
    I stacked two together ..the second for the 10th oct on some A7's
    quiet ..they are...and phase in perfect.....

  5. #5
    Senior Member DavidF's Avatar
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    Yep, I too use one. No issues of note. Used to modify the bass response, though, so I don't use any bands above 150 Hz.
    David F
    San Jose

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    Over The Top

    Quote Originally Posted by DavidF View Post
    Yep, I too use one. No issues of note. Used to modify the bass response, though, so I don't use any bands above 150 Hz.
    I did the same thing
    If your using bass to Midas-ize harsh freqs...
    try using the whole 30 1/3 oct trimmers method
    you'll need a Radio Shack db meter
    And a test cd (2011 delwoman's treasures www.ebay.com)
    (it's got all the EQ freqs)

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    I use one with my Altec Model 19's. I bought it brand new in the 90's and it's been extremely reliable--never had any problems with it. It's a great sounding EQ IMHO. Very clean and quiet and the 1/3 octave setup is great for fine tuning your sound. I use it mainly for a subtle bass enhancement....

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    For the record

    Name:  ,2wqndjiwda.jpg
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    I compared a Digital to these Alesis analog units...
    Although digtal has 100 presetable curves....
    thee basic nature of the unit was ....harsh

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    The digital unit sounded harsh? Interesting. I've never heard an Alesis digital EQ--thanks for the heads up! I couldn't be more happy with how smooth and natural the analog M-EQ 230 sounds.....
    Quote Originally Posted by Fort Knox View Post
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    I compared a Digital to these Alesis analog units...
    Although digtal has 100 presetable curves....
    thee basic nature of the unit was ....harsh

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    Super Clean

    Quote Originally Posted by voice of theatr View Post
    The digital unit sounded harsh? Interesting. I've never heard an Alesis digital EQ--thanks for the heads up! I couldn't be more happy with how smooth and natural the analog M-EQ 230 sounds.....
    Name:  146.jpg
Views: 3099
Size:  35.5 KBI'm running five A7's in a circle surround..fashion
    w/2 Alesis in series w/an Alesis MIDIVERB III and the hall effect is unreal..

    tuning the system up toke about 4 mo..

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    Wow--nice setup! It looks like they have Altec 421 woofers and 811b horns--what h.f. drivers and crossovers do they have? Is that a small port you've added between the horn and woofer/did you tune the cabs to a specific frequency?

    Quote Originally Posted by Fort Knox View Post
    Name:  146.jpg
Views: 3099
Size:  35.5 KBI'm running five A7's in a circle surround..fashion
    w/2 Alesis in series w/an Alesis MIDIVERB III and the hall effect is unreal..

    tuning the system up toke about 4 mo..

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    Magic EQ

    Quote Originally Posted by voice of theatr View Post
    Wow--nice setup! It looks like they have Altec 421 woofers and 811b horns--what h.f. drivers and crossovers do they have? Is that a small port you've added between the horn and woofer/did you tune the cabs to a specific frequency?
    The A7's were "Empty Arrival" lashups (installed K140's, 808's... no-X-over
    (save for a single 20uf cap on hf horn......)

    Cabinets were beat-up (30-40 yrs road rash) but they did have big casters, handles
    and four one inch pipe collars bolted to the tops..probably hung @ one pt. or another.
    There was "stack 6 - row j" on one cabinet .

    Anyway tuning is what they got....EQ, test, EQ, listening test EQ test etc,,
    10 to 20 Eq's Extended listening between tests 4 mo. worth at least....
    After a while ..I started putting 'PET' names on the octaves
    To make a long story short ...it finally toke 2 Eq's and 46db to get it.......

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    Correction EQ No's

    Acually it toke +28db.boost .(not 46) of EQ .....to get the 808/811 horn to do 15k..in the A7..
    (Of course this did req. a second Equalizer (hooked in series) ..to do the job)

  14. #14
    Senior Member grumpy's Avatar
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    with that much gain (25Vout/Vin), I would be surprised if the 2nd series EQ wasn't clipping fairly often
    at normal listening levels if the music program has much in the way of 15KHz energy. I don't recall if
    you've mentioned a test system (pink noise, RTA?), but it's possible to keep pushing up eq and not
    get more useful output. An oscilloscope function can help identify this sort of problem (sometimes comes
    with RTA-like programs).

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    Quote Originally Posted by grumpy View Post
    with that much gain (25Vout/Vin), I would be surprised if the 2nd series EQ wasn't clipping fairly often
    at normal listening levels if the music program has much in the way of 15KHz energy. I don't recall if
    you've mentioned a test system (pink noise, RTA?), but it's possible to keep pushing up eq and not
    get more useful output. An oscilloscope function can help identify this sort of problem (sometimes comes
    with RTA-like programs).
    Thanks for commenting
    I'm running the second Eq @ 40% into a reverb that seems to like low gain..
    as it's running @ 65% on the input ...but as it has "pot" problems anyway,, its fairly clean @65%....
    FM seems to have 15k info ...as defeating the 2nd EQ just makes for smaller sound............
    the only thing that sounds edgy is "some single edit stuff" but movies are unreal...AND
    @ this pt. I don't feel a need for a tweeter

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