mmc460s

rodney
rodney Posts: 91
edited February 2004 in Car Audio & Electronics
the momo mmc460s have a sensitivity of 88, will they sound good running off a sony HU, or should i find a small amp to run them? i would prefer not to, but dont want them to not play their best.
alpine cda-9857
polk db6500
polk ex369
polk/momo mm104
profile ap1040
kenwood kac-7251
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  • sntnsupermen131
    sntnsupermen131 Posts: 1,831
    edited February 2004
    no speakers are going to sound good off a sony hu
    id get a 50x2 amp or a better head unit
    -Cody
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  • rodney
    rodney Posts: 91
    edited February 2004
    my ex2 series 4x6s and 6x9s sounded ok on it
    alpine cda-9857
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  • sntnsupermen131
    sntnsupermen131 Posts: 1,831
    edited February 2004
    youd hear a noticeable difference if you heard the same speakers off a better head unit
    and the EX series arent as power hungry as the momo series
    the 4x6s are rated at 50 watts i think
    your head unit might put out 22 watts
    and thats not clean watts...
    theyd be underpowered on an unreliable source
    -Cody
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  • MTXMAN
    MTXMAN Posts: 682
    edited February 2004
    I agree with cody, the biggest downfall of your system is the fact that you use a sony head unit
    Hemi: (HEM -e) adj. Mopar in type, V8, hot tempered, native to the United States, carnivorous, eats primarily Mustangs, Camaros, and Corvettes. Also enjoys smoking a good import now and then to relax.
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  • rodney
    rodney Posts: 91
    edited February 2004
    if i got a profile clarus cl440 50x4 amp, would this run the fronts and rears ok? also, this may be a stupid question, but is it possible to wire the rears in parallel (like a pair of subs) in one of the channels to get the 2ohm load of 75w?
    alpine cda-9857
    polk db6500
    polk ex369
    polk/momo mm104
    profile ap1040
    kenwood kac-7251
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  • MacLeod
    MacLeod Posts: 14,358
    edited February 2004
    Profile makes a damn decent amp. Even though the price would lead you to believe theyre in the Pyle, Pyramid league, they are quite good and will give a good clean stout signal.

    In order to get a 2 ohm load with 4 speakers youd have to wire 2 speakers to one channel. Im not clear on why you would want to do that. If you have 4 speakers and a 4 channel amp then dont worry about a 2 ohm load.

    Whenever you go down to a lower load impedance you increase distortion and make the amp work harder. This isnt as big a concern when pushing subs but for your main speakers you want as clean a signal as possible and the less the amp has to work the cleaner the sound. I would stick with the 50x4. If youre wanting more power then Id suggest moving up to a bigger amp.
    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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  • sntnsupermen131
    sntnsupermen131 Posts: 1,831
    edited February 2004
    there is no reason why you want to bridge a 4 channel amp
    im not sure if it can even handle a 2 ohm load
    they have 3 channel amps if you want to have 2 speakers powered and a sub
    -Cody
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  • MacLeod
    MacLeod Posts: 14,358
    edited February 2004
    Well most higher end amps can be taken down to 2 ohms and/or bridged. Take the RF 551X. Its 70x4 at 4 and 140x4 at 2 ohms. Or you can run it as a 5 channel at 140x2 (70x4) + 275x1.

    I agree though that its better to just spend the extra cash and get a bigger amp.
    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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  • rodney
    rodney Posts: 91
    edited February 2004
    the mmc460s are rated at 50w RMS, how much could i safely go over this, around 70-75w?
    alpine cda-9857
    polk db6500
    polk ex369
    polk/momo mm104
    profile ap1040
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  • sntnsupermen131
    sntnsupermen131 Posts: 1,831
    edited February 2004
    i wouldnt take it farther than 75 watts
    which would probably be pushing it
    -Cody
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  • rodney
    rodney Posts: 91
    edited February 2004
    would this us acoustics amp be good? it does 65x2, but it doesnt have built in crossovers. since the mmc460s already have built in 2-way crossovers, wont they be ok?

    http://www.crutchfield.com/cgi-bin/S-NyF7UmluWtm/ProdView.asp?s=0&c=3&g=110&I=235USP200&o=m&a=0&cc=01&avf=N
    alpine cda-9857
    polk db6500
    polk ex369
    polk/momo mm104
    profile ap1040
    kenwood kac-7251
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  • MacLeod
    MacLeod Posts: 14,358
    edited February 2004
    This is just my personal opinion, but $50 for an amp raises all kinds of flags. Id recommend laying down a little more cash and getting something in a higher league.

    Alpine makes a 50x2 for $110 at Circuit City. I have one and its a very good amp. No bells or whistles and its no powerhouse but its very clean and accurate.

    You could move up to the V12 series from Alpine which I think are some of the best sounding amps around. The T320 is $200 at Crutchfield. I know its rated at 80 watts and youre looking to come in below 75 but that 80 watts is at 14.4 volts from 20-200 Hz. The 14.4 volt rating at 20-20,000 HZ is 60 rms which wont blow your speakers and itll be crystal clear.
    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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  • sntnsupermen131
    sntnsupermen131 Posts: 1,831
    edited February 2004
    us acoustics is a big mystery to me
    they put up good specs, come with a 3 yr warranty, but have an extremely low price (especially considering its from crutchfield)
    i dont know good that amp is going to sound
    the alpine amp is most likely going to be a better amp though
    or even a rockford fosgate 201S
    but you might want to try the us acoustics, i think crutchfield has some type of 30 day trial period, i could be mistaken though
    -Cody
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  • rodney
    rodney Posts: 91
    edited February 2004
    i think ill try it out, cause ive heard that their other amps are decent. but what about the crossovers? will the built in ones be ok?
    alpine cda-9857
    polk db6500
    polk ex369
    polk/momo mm104
    profile ap1040
    kenwood kac-7251
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  • rodney
    rodney Posts: 91
    edited February 2004
    ???
    alpine cda-9857
    polk db6500
    polk ex369
    polk/momo mm104
    profile ap1040
    kenwood kac-7251
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  • sntnsupermen131
    sntnsupermen131 Posts: 1,831
    edited February 2004
    i dunno, call polk and ask
    -Cody
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