is it safe to unhook the tweeters from my MMC691s?

anotheruser
anotheruser Posts: 31
edited August 2009 in Car Audio & Electronics
im finding the tweeters on my mmc691s to be a bit too bright for my liking. can i safely just pull the tweeter leads off and run the speaker with the woofer connection only?
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    anyone?
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  • MacLeod
    MacLeod Posts: 14,358
    edited August 2009
    I suppose you could always cut the lead but it would sound like crap. Problem is the tweeters output is too high.

    The best solution albeit pricey is to buy a 4 channel amp and bi-amp those 6x9's. Run the mids straight off the rear channels and the tweeters off the front channel using the passive crossover that came with them. This way you can adjust the output of the tweeter.
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
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    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    i have a 4 channel amp, so i can do that. ill look into that tomorrow and let you know how it goes.

    i dont really want to, but i guess i can run my 4x6s off my head unit, rather then the amp.
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  • MacLeod
    MacLeod Posts: 14,358
    edited August 2009
    If the 6x9's are in the rear then just go ahead and run without the tweeters. Youre not really hearing them anyway.

    I was thinking it was a setup like my Dodge Ram where the 6x9's were in the front door.
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    oh no, these are in a 69 corvette, and theyre located right behind my head.

    ill still try bi amping them and see how they sound.
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  • arun1963
    arun1963 Posts: 1,797
    edited August 2009
    Does the mm 691's xover have a tweeter attenuation switch? I know my momo 691's didnt. If so flip it to -3/-6 whatever is the min and then see if it makes a diff.

    Bi-amping would give you greater control like mac said
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    mmcs are the momos. and i see i was wrong in the model number, it should have been mmc690.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    where r 4x6s mounted? dash?
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    kick panels. i tried the dash for a few years and never liked it.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    yeah i vote keep em amped and get rid of tweeter, no biamp. or get another amp:rolleyes::cool:
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • arun1963
    arun1963 Posts: 1,797
    edited August 2009
    anotheruser wrote: »
    mmcs are the momos. and i see i was wrong in the model number, it should have been mmc690.

    Ya I misquoted the number as well. I still have mine still installed, but they are long disconnected. Yes the tweets on it are bright.

    Even if you bi-amp them and attenuate the tweet, they will still over power your 4x6 fronts.

    Here's a possible solution, bring the 6x9 in kick box upfront and take the 4x6 back. Then bi-amp the 6x9 and run the 4x6 off the hu........
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    arun1963 wrote: »
    Here's a possible solution, bring the 6x9 in kick box upfront and take the 4x6 back. Then bi-amp the 6x9 and run the 4x6 off the hu........

    if 6 x 9s fit, good call.
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    i cant do that, 4x6s are a damn tight fit as it is.

    i havnt been able to get out there and work on this today, as its been looking like rain all day. maybe this weekend i can work on it.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    so its second amp, or get rid of second tweets..
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • arun1963
    arun1963 Posts: 1,797
    edited August 2009
    anotheruser wrote: »
    i cant do that, 4x6s are a damn tight fit as it is.

    i havnt been able to get out there and work on this today, as its been looking like rain all day. maybe this weekend i can work on it.

    See if you can mod this kick panel to take the 6x9. Ideally you shouldnt run rears, in case you do, the more powerfull speaker should always be upfront. Better staging and presentation.

    You dont listen to your home audio with your back to it. By keeping the 6x9 at the back, your sound would flow from the rear, it should be from upfront.
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    actually... i do do listen to my home audio with my back to it. i run it in 2x stereo.

    as to moding the kick panels to make it fit, not a possibility. i mean, unless i cut some nice big holes in my fenders and have half the speaker out side the car.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    anotheruser wrote: »
    actually... i do do listen to my home audio with my back to it. i run it in 2x stereo.

    haha eat that arun!:p
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • arun1963
    arun1963 Posts: 1,797
    edited August 2009
    anotheruser wrote: »
    actually... i do do listen to my home audio with my back to it. i run it in 2x stereo.

    as to moding the kick panels to make it fit, not a possibility. i mean, unless i cut some nice big holes in my fenders and have half the speaker out side the car.

    Cool then keep the 6x9 at the back, bi-amp them and run the front 4x6 off the hu and you'll feel right at home...lol

    If you want to keep both sets amped then just pull the tweet on the 6x9 like mac said.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    was only kidding arun, if u took that personally or sompin, talkin bout my soulmate.. what about us man!?
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    finally got it all set up. i bi amped the 6x9s off my xtant a4004, and ran the 4x6s off my head unit, a cda-9815 (the V-link with 27wRMS per channel)

    ive got 2 things to say.
    1. it sounds great
    2. its loud as hell

    thanks for the help guys.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    sweet! so more control over tweeter helped, eh? turn gain down? sounds like a nice amp. how much powewr 40x4?
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    ya, i turned the gains way way down on the tweeters. the amps rated at 50x4 @ 4ohm, 100x4 @ 2ohm, and 200x2 bridged @ 4ohm.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    word! oh yeah, they must b lovin that! u have a LPF on mids? curious since not using crossover..tweets sound nice though huh? imagine louder and clearer, easier on ears?
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    i havnt set the lpf yet. i didnt have time this evening, and ive got a cruise early tomorrow morning. ill probably set it some time this week.

    and yes, much much louder, much cleaner, andm uch easier on the ears. it doesnt hurt to listen to it at all anymore.

    the tweeters are finally set just how i like them. theyre there, theyre supplying a good sound, but theyre not over bearing or piercing.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    awsome! u mean lpf on amp?
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    i could go with either the amp or the HU, they both have one. ill probably go with the amp though, just because its easier.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    they both have bandpass(hpf and lpf)?? isn't hu kinda easier??
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    eh... ones a knob, the others some buttons and a dial. im lazy, therefore just turning the knob is easier.
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  • cadenceclipse
    cadenceclipse Posts: 459
    edited August 2009
    lol thats funny but isnt it easier to set or tune it from your seat on HU(one value or the other)? also tuning amp is so tedious 2 me(a hair up a hair down..). u have bandpass on HU AND amp??
    Polk MM6501 kick panels, Eclipse cd7200mkll and SW9122 Bomb Box, Cadence A4, A7, CAP5, JL8W3V3
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  • anotheruser
    anotheruser Posts: 31
    edited August 2009
    im looking through manuals right now.... im just starting to use filters more, so im still learning as i go on this part.

    amp has
    front channel - full/LPF/HPF
    rear channel - full/LPF

    HU has
    HPF and LPF settings for low range speakers, mid range, and high range.
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