Modeling a 4x5

Discussion in 'Amps and Cabs [BG]' started by Playbyear, Feb 15, 2020.

Tags:
  1. Playbyear

    Playbyear

    Nov 20, 2019
    MA
    I was modeling a vented 4x5, using four, Visiton W130S-4 5” drivers
    Its a 4 ohm, 50 watt continuous rating. I would wire it series parallel for 4 ohm total cabinet.

    WINisd likes a 3 ft3 or so box, tuned to 40 or 41 HZ and shows a remarkably flat response, only down -3db at 40HZ.

    I’m intrigued with this, but am unsure what the power handling would be. Or how,it would sound...
    I modeled with 100 watts checking the vent speed, etc...

    Also, it’s not a very sensitive driver at 86db. Does the overall result improve with four drivers.

    Any thoughts on all of this?
     
  2. abarson

    abarson

    Nov 6, 2003
    Santa Cruz
    Why 4x5?
     
    andruca and BassmanPaul like this.
  3. Playbyear

    Playbyear

    Nov 20, 2019
    MA
    I thought it might make a cool compact cab. That driver caught my attention as it’s stated to be good down to 40HZ with a proper vented enclosure. However, 3 cubic feet isn’t that small.
     
  4. abarson

    abarson

    Nov 6, 2003
    Santa Cruz
    That speaker is a woofer only and won't give you any miss or highs. It's really intended for home stereo and not musical instruments.
     
    rogypop likes this.
  5. Playbyear

    Playbyear

    Nov 20, 2019
    MA
    E8804FFE-7E25-4551-996A-F50F62C6D84C.jpeg C43F991E-4906-4435-ABEB-87A0CF721C7E.jpeg
     
  6. Playbyear

    Playbyear

    Nov 20, 2019
    MA
    4x5.png
     
  7. abarson

    abarson

    Nov 6, 2003
    Santa Cruz
    Keep us posted.
    Any thoughts about making it vertical instead of the traditional 2x2?
     
  8. basscooker

    basscooker Commercial User

    Apr 11, 2010
    Northern KY
    Cab fan, hobbyist
    You'd be looking at like a 200 (thermal) watt cab, somewhere in the 92dB range. If it sounds good, cool....BUT you could likely beat it in almost every aspect with the same time and effort using a single 12. Heck, 3 cuft is like a 1x15.

    Published response chart does look like it has decent high end, though. Still, 86dB? Is it a speaker or an attenuator?
     
    Last edited: Feb 17, 2020
    rogypop likes this.
  9. rogypop

    rogypop

    Jan 10, 2009
    Croatia
    With a sensitivity that low and xmax of just 2.25mm it will not do much for a bass guitar. A single 10 would do more in a smaller cab.
     
  10. Playbyear

    Playbyear

    Nov 20, 2019
    MA
    I'm intrigued by the low end, but 3 Cu ft is the disappointing part.
     
  11. SteveIII

    SteveIII

    Jul 11, 2019
    Oshawa Ontario
    Check the excursion in win isd. 86 db efficiency is why the response goes low and flat. I have a 15 that is thermal rated at 400 watts rms. In the cab it is in it is mechanically limited to 200 watts at 40 hz. But it is 99 db efficient. And stupid loud. You might find your driver doesn't have enough excursion at power to maintain that flat response in the real world.
     
  12. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
    At low volumes it might work fine limited to 100 watts. The sensitivity of the 4 drivers should end up around 90dB 1W/1M assuming that's how the sensitivity is really specified and not at 2.83V/1M (which is 1 watt at 8 ohms and 2 watts at 4 ohms).

    You might try modeling it in a 2 CF box to see if it provides a reasonable response.