What is better...

glemay
glemay Posts: 574
edited November 2003 in Subwoofer Hookup & Bass Management
What would perform better, a 12 inch driver in a sealed box with a 100 watt RMS/150 watt peak or a 10 inch driver in a ported box with the same amp? Frequency response is similar.

Gerald Lemay
Main System:
Denon AVR-2805, Polk Audio RTi70's, Polk Audio CSi40, Polk Audio FXi50, Paradigm PW-2200 v.2, Toshiba 42XV545U HDTV

Second System:
Denon AVR-1705, Polk Audio R40, Polk Audio CS245i, Polk Audio R15, Paradigm PS-1200a
Post edited by glemay on
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Comments

  • RuSsMaN
    RuSsMaN Posts: 17,987
    edited November 2003
    Too many un-answered variables to decide.

    Is that a $25 Rat shack 12, and a $300 Focal 10, or vice-versa?
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • glemay
    glemay Posts: 574
    edited November 2003
    What I am trying to find out is, will a smaller driver with a bigger amp out perform a bigger driver with a smaller amp?
    Main System:
    Denon AVR-2805, Polk Audio RTi70's, Polk Audio CSi40, Polk Audio FXi50, Paradigm PW-2200 v.2, Toshiba 42XV545U HDTV

    Second System:
    Denon AVR-1705, Polk Audio R40, Polk Audio CS245i, Polk Audio R15, Paradigm PS-1200a
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  • RuSsMaN
    RuSsMaN Posts: 17,987
    edited November 2003
    There's no way to give a generic yes or no on that scenario.

    What class / design of amp?

    What are the xmax, f3 and Q factors on the drivers?

    What are the drivers efficiency ratings?

    What is the design of both boxes, bracing, wadding, etc?

    Do you see where I'm going here? If you have 2 particular models in mind, lay it out - then perhaps someone can speak from personal experience on each.

    Cheers,
    Russ
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • glemay
    glemay Posts: 574
    edited November 2003
    How about the Sound Dynamics THS-3000 and the Velodyne CHT10.

    Velodyne CHT10:

    10" Forward Firing Subwoofer
    (8.2" piston diameter)
    Frequency Response: 28-120 Hz +-3 dB
    High Pass Crossover (6 dB/octave slope):
    Passive 85Hz


    Low Pass Crossover (12 dB octave, 24 dB ultimate):
    40Hz-120Hz (adjustable)


    Auto On/Off
    Dynamic Power: 375 watts
    RMS Power: 150 watts
    Magnet: 40 oz.
    Voice Coil: 2" 4-layer copper
    Inputs: Line-level and speaker-level
    Outputs: Line-level and speaker-level
    Crossover bypass: Subwoofer Direct
    Cone: Reinforced fiber
    Cabinet (H/W/D): 16.25" x 15" x 19.75"
    Weight: 53 lbs.
    Warranty: 2 years (parts & labor)
    Finish: Black vinyl



    Sound Dynamics THS-3000:

    Go to the link:http://www.helloav.com/speakers/sound_dynamics/ths3000.html

    Gerald Lemay
    Main System:
    Denon AVR-2805, Polk Audio RTi70's, Polk Audio CSi40, Polk Audio FXi50, Paradigm PW-2200 v.2, Toshiba 42XV545U HDTV

    Second System:
    Denon AVR-1705, Polk Audio R40, Polk Audio CS245i, Polk Audio R15, Paradigm PS-1200a
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  • goingganzo
    goingganzo Posts: 2,793
    edited November 2003
    heres a thought buld a sub for the same price as thoes you can have a killer sub. if you can cut a circle you can buld a sub. you can get the mdb cut to size at hd or lowes all you have to do is cut the circle for the sub and the square for the plate amp. also you can buy a pre made box form ltryke they have deals on them at times.
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  • gatemplin
    gatemplin Posts: 1,595
    edited November 2003
    Gerald, I know you arent keen on a DIY sub but Gonzo is right. I built a DIY Tempest for less than $550 Canadian completed. Check out www.creativesound.ca for the amp and driver. It will be in the same league as a SVS PC+ or Servo 15, maybe better. Ask Doc or Ron-P. It is simple, all you need are a weekend, a drill and a jigsaw ($30).
    Graham
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  • glemay
    glemay Posts: 574
    edited November 2003
    I'm not going to buy either of the subs I mentioned. I'm just trying to figure out what is better.
    Main System:
    Denon AVR-2805, Polk Audio RTi70's, Polk Audio CSi40, Polk Audio FXi50, Paradigm PW-2200 v.2, Toshiba 42XV545U HDTV

    Second System:
    Denon AVR-1705, Polk Audio R40, Polk Audio CS245i, Polk Audio R15, Paradigm PS-1200a
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  • goingganzo
    goingganzo Posts: 2,793
    edited November 2003
    it all depends if the sub is not efeshent you need much more power to get the same out from a similar sub with a higher efency. now quailty of sub. most store bought in cc,bb abc cant hit the last octive. unles you want to spend 1-3k at a high end shop. but for the same performance if you buld a sub you will olny spend less than 500. i will put my sub in the leag of the wilison x1 in sheer output but it is proabley not as musical and might have a smigh higher thd. but 18k un powered vs 1k powered. i rest my case.
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