Wot ? Speakers ? Again ?

Discussion in 'Fred's Barcalounge' started by hcsterg, Sep 27, 2020.

  1. hcsterg

    hcsterg Friend of Fred

    Feb 13, 2012
    France
    I finished these ones today - it's my reckless 1st venture in oiled wood... :eek::confused:

    Fortunately, it worked surprisingly well ! :cool::rolleyes:

    [​IMG]

    [​IMG]

    Since they are cubical and rather compact (200x200x200mm, circa 8"x8"x8"), I called them very cleverily "The CUBE"... o_O:D

    A+!
     
    birdawesome, cowmoo, MTurner and 13 others like this.
  2. lathoto

    lathoto Gretschie

    267
    Apr 23, 2020
    Ohio
    Excellent work.
     
    hcsterg likes this.
  3. Waxhead

    Waxhead Country Gent

    Aug 30, 2014
    Australia
    Very cute - what speakers are inside?
     
    hcsterg likes this.
  4. Scott Fraser

    Scott Fraser Country Gent

    Jan 14, 2012
    Los Angeles
    Beautiful wood work.
     
    hcsterg likes this.
  5. wabash slim

    wabash slim Gretschified

    Age:
    70
    Feb 10, 2010
    lafayette in
    Nicely done! You want a dense cab, and the butcher block looks light years better than chip board or plywood. The finish came out great.
     
    Last edited: Sep 27, 2020
    hcsterg likes this.
  6. audept

    audept Senior Gretsch-Talker

    Age:
    72
    Dec 1, 2010
    Sydney, Australia
    Beautiful work! Butcher-block speakers!
     
    hcsterg likes this.
  7. Tony65x55

    Tony65x55 Gretschified

    Age:
    64
    Sep 23, 2011
    The 'Shwa, Ontario, Canada
    Too cool! Now you need to do some 15" ones because size matters!
     
    hcsterg likes this.
  8. wabash slim

    wabash slim Gretschified

    Age:
    70
    Feb 10, 2010
    lafayette in
    Yup! Gotta drop that bass!
     
    hcsterg and Tony65x55 like this.
  9. pmac11

    pmac11 Country Gent

    Mar 4, 2018
    Toronto, Ontario
    These look like really expensive studio monitors. Cool. Bien fait comme toujours!
     
    hcsterg likes this.
  10. stevo

    stevo Friend of Fred

    May 1, 2012
    Atlanta
    Really cool! Is there some kind of calculation you do to determine the size of the ports?
     
  11. Bertotti

    Bertotti Friend of Fred

    Jul 20, 2017
    South Dakota
    Nice! Which oil did you use?
     
    hcsterg likes this.
  12. G5422T

    G5422T Country Gent

    May 24, 2012
    usa
    Sweet. Very nice job.
     
    hcsterg likes this.
  13. wabash slim

    wabash slim Gretschified

    Age:
    70
    Feb 10, 2010
    lafayette in
    I've built a few, from small 2 ways to large PA cabs. Simplest is 1/3 to 1/2 the area of the speaker. The port length should be a fraction of the lowest frequency wavelength---1/4, 1/8, 1/16, etc.--- for proper tuning.
     
    hcsterg likes this.
  14. Ricochet

    Ricochet I Bleed Orange

    Nov 13, 2009
    Monkey Island
    Wow, how small are the drivers?
     
    hcsterg likes this.
  15. guitarfarm

    guitarfarm Country Gent

    Nice looking speakers. Got any pics of the cross-overs?
     
    hcsterg likes this.
  16. hcsterg

    hcsterg Friend of Fred

    Feb 13, 2012
    France
    Thank you Guys ! :)

    I just posted this release for the occasion, I wouldn't suspect technical interest from some of you... :cool:;)

    So :

    The speakers are :

    Woofer-Midrange = MONACOR SP-100/8
    Tweeter = AUDAX TW51A8

    I used a local product from SYNTILOR - a water-solvent oil destined to kitchen furniture and counter tops :

    [​IMG]

    [​IMG]

    The Woofer-Midrange is a 4" (106x106mm) https://www.monacor.com/products/sp-100-8/

    The Tweeter is a 10.5mm (51x51mm) https://www.toutlehautparleur.com/t...a-8-ohm-bobine-10-5-mm-facade-51-x-51-mm.html

    Here it is :

    [​IMG]

    [​IMG]

    [​IMG]

    A+!
     
  17. hcsterg

    hcsterg Friend of Fred

    Feb 13, 2012
    France
    Yes, this is the old rule, still valuable by the way. Here, similarly, I tuned at the lowest wavelength possible by the size of the cab, in order to have better bass extension and less boomy sound :

    [​IMG]

    I wanted a laminary decompression so I completely stuffed the cab, hoping to make it as aperiodic as possible.

    Reality proved different, as the behavior was more Bass-Reflex orientated... So I had to plug 3 of the 6 vents to retune the cab more lower to achieve a smooth 65Hz @-3dB bass extension :

    [​IMG]

    [​IMG]

    A+!
     
  18. loudnlousy

    loudnlousy Gretschified

    Age:
    54
    Oct 18, 2015
    Germany
    Beautifully done. Looks IKEA on stereoids.
     
    Last edited: Sep 29, 2020
    hcsterg likes this.
  19. Dana Rudd

    Dana Rudd Synchromatic

    658
    Nov 26, 2019
    Greybull, WY
    Great job, they look great.
     
    hcsterg likes this.
  20. hcsterg

    hcsterg Friend of Fred

    Feb 13, 2012
    France
    Thanks ! :)

    Yes, I used 18mm thick glued-laminated Beech wood, typically what's used here for making kitchen furniture.

    A+!
     
IMPORTANT: Treat everyone here with respect, no matter how difficult!
No sex, drug, political, religion or hate discussion permitted here.