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View Poll Results: Which speakers has better specs?

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  • RTi A9

    9 60.00%
  • VM 30

    6 40.00%
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  1. #1
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    Default VM 30 VS RTi A9 Floorstanding speakers

    VM 30 SPECS

    Subwoofer 4 - 4" Diameter (10.16cm)
    Planar bass radiator

    Mid/Woofer 4 - 4" Diameter (10.16cm)
    Dynamic Balance mineral filled polymer composite cone drivers, shielded

    Midrange 2 - 4" Diameter (10.16cm)

    Tweeter 1 - 1" Diameter (2.54cm)
    Ferro-magnetic fluid-cooled Aluminum Dome Tweeter

    RTi A9 SPECS

    Subwoofer 3 - 7" Diameter (17.78cm)
    Polymer Composite with Rubber Surround

    Mid/Woofer (NONE)

    Midrange 2 - 5-1/4" Diameter (13.34cm)
    Polymer Composite Dynamic Balance with rubber surround

    Tweeter 1 - 1" Diameter (2.54cm)
    Silk Polymer Composite Dome

    Which specs are better and please explain why. I would like to learn and research on my soon purchases. Which speakers will I benefit as punchy speakers for 90 % HT? (mainly interested about subwoofer built in speakers)

    Also, whats difference between Subwoofer / Mid woofer?
    Last edited by CaligulaPolk; 02-18-2009 at 02:37 AM.
    I am 100% BORN DEAF and No I am not kidding! :D Why am I here? My wife's hearing! :p

    My Home Theater Rig || Television: 58" Panasonic TH-58PZ800U Viera Plasma || Power Conditioner: Power Monster HTS 3600 MKII || Receiver: Onkyo TX-SR805 || Blu-Ray/Gaming: 60 Gigabytes Playstation 3 || Amplifier: Emotiva XPA-5 || Fronts: Polk Audio RT800i || Center: Polk Audio CS245i || Surrounds: TBA|| Subwoofer: TBA

  2. #2

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    The A9's are going to give you a lot more of that low end that you're looking for compared to the VM30's

    The A9's rated frequency response 18hz to 27khz, compared to a rating of 50hz to 26khz on the VM30's. I've never compared the two of them, so I can't really compared their sound quality.

    The "subwoofers" in the VM30's aren't powered, they're passive radiators. They run off of the back pressure of the four 4" woofers. They're a bass port in essence, but much more complex. They aren't going to give you the low end of the three 7" woofers on the A9's though.
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  3. #3

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    Don't go on the just the specs alone, let your ears decide. Hell, even Bose will tell you that!;)

    Are you looking for aesthetics more than speaker size? They are both going to be great speakers for HT, however, I'd have to give the nod to the A9's. The tweeter is going to be something I'd have to get use to, go audition the difference between an aluminum and a silk dome tweeter, they are quit different.

    BTW, for HT use I would not call any of those specs "subwoofers".

  4. #4
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    I quote Polk VM page.
    "VM30 use Planar Bass Radiators- technology from our top of the line DSW microPRO series subwoofers. The VM30 features four of them. You'll be surprised how warm and full sounding such a slim speaker is. "

    I know few of you polkies recommend DSW Micropro subs, from my understanding becuz its good sub. I dont see or know why RTi a9 would be best punchy speaker choice? Please explain why Rti a9 is not planar bass radiators subwoofer and yet it is popular speakers out there.

    What make rti a9 better choice?
    I am 100% BORN DEAF and No I am not kidding! :D Why am I here? My wife's hearing! :p

    My Home Theater Rig || Television: 58" Panasonic TH-58PZ800U Viera Plasma || Power Conditioner: Power Monster HTS 3600 MKII || Receiver: Onkyo TX-SR805 || Blu-Ray/Gaming: 60 Gigabytes Playstation 3 || Amplifier: Emotiva XPA-5 || Fronts: Polk Audio RT800i || Center: Polk Audio CS245i || Surrounds: TBA|| Subwoofer: TBA

  5. #5

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    Quote Originally Posted by MikeC78 View Post
    Don't go on the just the specs alone, let your ears decide. Hell, even Bose will tell you that!;)

    Are you looking for aesthetics more than speaker size? They are both going to be great speakers for HT, however, I'd have to give the nod to the A9's. The tweeter is going to be something I'd have to get use to, go audition the difference between an aluminum and a silk dome tweeter, they are quit different.

    BTW, for HT use I would not call any of those specs "subwoofers".
    Just in case you didn't know, Jeff here is deaf, so he won't really be able to tell the difference between the tweeters. Low end is what he's looking for.

    Quote Originally Posted by CaligulaPolk View Post
    I quote Polk VM page.
    "VM30 use Planar Bass Radiators- technology from our top of the line DSW microPRO series subwoofers. The VM30 features four of them. You'll be surprised how warm and full sounding such a slim speaker is. "

    I know few of you polkies recommend DSW Micropro subs, from my understanding becuz its good sub. I dont see or know why RTi a9 would be best punchy speaker choice? Please explain why Rti a9 is not planar bass radiators subwoofer and yet it is popular speakers out there.

    What make rti a9 better choice?
    That quote is referring to how great it sounds given it's size. Those passive radiators aren't subwoofers in the sense you're thinking of, and don't create bass of their own. Speakers radiate sound in both directions, front and back, in this case, the mid-woofers back pressure is what runs the passive radiators on the back, which essentially act as a complex bass port. I'm sure they still do have great bass output...but they aren't going to have the impact that the A9's have. They simply don't hit anywhere near as low as the A9's will.
    The nirvana inducer-
    APC H10 Power Conditioner
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    Adcom GFA-545 power amp
    PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Type 4 speaker cables
    Audioquest Sidewinder IC's
    Audioquest Black Mamba IC's
    Signal Cable Analog II IC's

  6. #6

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    The price for starters, along with the physical size, hard to beat physics.

  7. #7

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    Quote Originally Posted by comfortablycurt View Post
    Just in case you didn't know, Jeff here is deaf
    :oYou are right, I didn't know. Thanks. My point is mute then.
    Last edited by MikeC78; 02-18-2009 at 02:55 AM. Reason: I didn't read the OP's Sig

  8. #8
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    Cool

    Quote Originally Posted by MikeC78 View Post
    :oYou are right, I didn't know. Thanks. My point is mute then.
    its allright no need to be :o
    I am 100% BORN DEAF and No I am not kidding! :D Why am I here? My wife's hearing! :p

    My Home Theater Rig || Television: 58" Panasonic TH-58PZ800U Viera Plasma || Power Conditioner: Power Monster HTS 3600 MKII || Receiver: Onkyo TX-SR805 || Blu-Ray/Gaming: 60 Gigabytes Playstation 3 || Amplifier: Emotiva XPA-5 || Fronts: Polk Audio RT800i || Center: Polk Audio CS245i || Surrounds: TBA|| Subwoofer: TBA

  9. #9

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    My guess is the A9ís will be much more dynamic in nature, be able to be played louder, and do a better job of covering the frequency extremes. I would bet my life however that the VM30ís would throw a much better image.

  10. #10
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    Quote Originally Posted by CRESCENDOPOWER View Post
    My guess is the A9ís will be much more dynamic in nature, be able to be played louder, and do a better job of covering the frequency extremes. I would bet my life however that the VM30ís would throw a much better image.
    what image?
    I am 100% BORN DEAF and No I am not kidding! :D Why am I here? My wife's hearing! :p

    My Home Theater Rig || Television: 58" Panasonic TH-58PZ800U Viera Plasma || Power Conditioner: Power Monster HTS 3600 MKII || Receiver: Onkyo TX-SR805 || Blu-Ray/Gaming: 60 Gigabytes Playstation 3 || Amplifier: Emotiva XPA-5 || Fronts: Polk Audio RT800i || Center: Polk Audio CS245i || Surrounds: TBA|| Subwoofer: TBA

  11. #11

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    He's referring to stereo imaging, or the ability to detect where on the "stage" individual sound effects are coming from.
    The nirvana inducer-
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    PolkAudio SDA 2A's/PolkAudio Monitor 7A's
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    Audioquest Sidewinder IC's
    Audioquest Black Mamba IC's
    Signal Cable Analog II IC's

  12. #12

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    Rti a9's all day

  13. #13

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    I voted RTi A9s but they need a decent two channel amp driving them. I am thinking a ~500.00 B&K would do the job nicely.
    AVR: Elite VSX-21TXH
    Amplifier: B&K 7250 Series ii
    Misc: Velodyne SMS-1
    Mains: RTi-10
    Center: CSi-5
    Rear: Boston DSi460
    Sub: SVS PC-Ultra
    TV: Panasonic TC-P58V10
    DVD: Panasonic DMP-BD60K

  14. #14

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    A9's for sure. You simply can't move the air with the small drivers in the VM series. The A9 will cover most frequencies in HT and 2 ch. well and the sub won't have to do all of the work with the low frequencies.
    Ryan Jozwiak

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  15. #15

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    Are you planning on running your front channels at full band, or are you going to cross them over at a higher frequency? If you're planning on crossing them over at 80hz or so, the additional low end of the A9's isn't going to make a huge difference, and your sub will be handling most of the low end.

    Looking for the bass output like you are, I'm guessing you'll be running your fronts at full band, so that they're putting out low end as well. In that case, the A9's are the clear winner, because they have a lot more bass output.

    If you were planning on crossing them over at a higher point though, either one would do the job just as well.

    The crossover point you're planning on for the fronts could make a big difference in this decision.
    The nirvana inducer-
    APC H10 Power Conditioner
    Denon DVD-2910 universal player
    DPA The Little Bit Three DAC
    Yamaha P-300 turntable/TCC TC-750 phono preamp
    Acurus L10 preamp
    Adcom GFA-545 power amp
    PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Type 4 speaker cables
    Audioquest Sidewinder IC's
    Audioquest Black Mamba IC's
    Signal Cable Analog II IC's

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