MB Quart sub, PWE 352. How do the specs look?

Discussion in 'Home Theater Projects' started by jeff lam, Jun 10, 2005.

  1. jeff lam

    jeff lam Screenwriter

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    I guess these are suposed to be very expensive drivers but are on clearance right now $119. What do you guys know about this MB Quart Sub?

    Impedance 2 ohms
    Cone Material TreatedPaper/Poly dustcap
    Surround Material Santoprene
    Sealed Box Volume (cubic feet) 1.5
    Ported Box Volume (cubic feet) N/A
    Port diameter (inches) N/A
    Port length (inches) N/A
    Free-Air No
    Dual Voice Coil Yes
    Sensitivity 90dB
    Frequency Response 16 - 0.3k Hz
    RMS Power Range (Watts) 50-800
    Peak Power Handling (Watts) ---
    Top Mount Depth (inches) 7 3/8
    Bottom Mount Depth (inches) N/A
    Cutout Diameter or Length (inches) 13 13/16
    Vas (liters) 90.1
    Fs (Hz) 27
    Qts 0.59
    Xmax (millimeters) ---
    Parts Warranty 3 Years
    Labor Warranty 3 Years


    xmax isnt specified. Specs dont look great compared to some other subs but for $120 and i also need a smaller box sub.
     
  2. ThomasW

    ThomasW Cinematographer

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  3. jeff lam

    jeff lam Screenwriter

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    Thats what i figured. Whats a good driver to use in a smaller size box with low tuning that doesnt take a lot of power to drive?

    12" should be OK, my spl requirement isnt high. Maybe 100-110 max.

    oh... medium size room with openings. Maybe 500 ft^2 + open rooms.

    I also thought about IB design but dont know that much about it. Could be a possibility.
     
  4. ThomasW

    ThomasW Cinematographer

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    There's no such thing, that would defy the laws of physics.

    "Hoffman's Iron law", you can choose and control any 2 of the 3 following performance parameters, the 3rd one you can't control.

    1)Fs
    2)box size
    3)efficiency
     
  5. jeff lam

    jeff lam Screenwriter

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    I have enough power for most drivers, but Im talking about a driver that doesnt require 1000-2000 Watts. I can give it 450W. Right now I have a tempest in a 175 liter tube and its more than enough for me, however I would love to get similar results from 1/2 the size if possible.
     
  6. ThomasW

    ThomasW Cinematographer

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    Buy a second Tempest make a clamshell Isobaric design = same performance and 1/2 the box size.
     
  7. jeff lam

    jeff lam Screenwriter

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    thats an idea I guess but I'm afraid I dont know much about this design. Do you have any links with info on an Isobaric design?
     

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