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jon91661

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Posts posted by jon91661

    Cornscala

    in 2-Channel Home Audio

    Posted

    2 hours ago, HPower said:

    I will say again Jon... 😎

     

    I also agree with you on the value of both MDF and BB.

    On my CS build, I was obviously not as "all out" as you, but I did build the mother boards and bottoms

    of mine with 1in BB laminated with .75 MDF.

    The rest of the cabinets were all 1in BB.

    The knuckle test on mine confirmed very solid cabinets... your should be ROCKs!

     

    Looking forward to your impression once you get them playing 🎼

     

     

     

    Me too!  Bet yours sounded awesome!  will keep you posted

    • Like 1

    Cornscala

    in 2-Channel Home Audio

    Posted

    15 hours ago, Pete H said:

    Can't wait to see these completed!  

     

      I know,  Me too.  I am clear coating them now, probably about 6 coats.    Should take me about a day to assemble after that. 

     

    I am using some really cool grill cloth also.   About 180lbs. when complete each.    I can't wait to see what a good low power tube amp will sound like.  

     

    Very excited!!         Thanks Pete

    • Like 1

    Cornscala

    in 2-Channel Home Audio

    Posted

    2 hours ago, Pete H said:

    Have you used 18mm baltic birch in any of your other builds?  For me, as soon as I found BB void free plywood and worked with it, I use it for everything.  Just curious, not being judgemental at all with regards to MDF, they can both produce great results, and as you've demonstrated, a combination of the two can do that as well.  I just don't understand the benefits (given the additional time involved) of using both, but at 53 years old, I'm never done learning, so I'm interested in your perspective.  Would really like to hear this rendition of the C-Scala, there have been so many and all of them that I've built and heard have been great.  Keep building and posting.👍

     

    2 hours ago, Pete H said:

    Have you used 18mm baltic birch in any of your other builds?  For me, as soon as I found BB void free plywood and worked with it, I use it for everything.  Just curious, not being judgemental at all with regards to MDF, they can both produce great results, and as you've demonstrated, a combination of the two can do that as well.  I just don't understand the benefits (given the additional time involved) of using both, but at 53 years old, I'm never done learning, so I'm interested in your perspective.  Would really like to hear this rendition of the C-Scala, there have been so many and all of them that I've built and heard have been great.  Keep building and posting.👍

     

    I would agree with you about BB for some kinds of speakers, I have built about 200 pairs in the last ten years.  Horns are a different animal.  These horns in particular really have nothing to do with the actual cabinet, except being mounted to it.  I built this cabinet for the Bass exclusively.  Like so many other cornscala designs, sometimes the horns, tweeters, etc, are actually not even part of the cabinet at all.  BB is great for Back loaded horns, where the driver actually uses the cabinet like an instrument to help the music sound warm and rich.  MDF on the other hand, or some other very inert material is most often used on multi driver, dynamic transducer designs.   Someone once told me that " BB is much more rigid than MDF, if you put them side by side, and bend them, the MDF bends much easier",   True,    I never said it wasn't stronger, it is denser, and does not resonate like a BB cab does.  It is Dead, or Enert.   For bass drivers, and a bass cabinet, this is optimal.   They put out massive amounts of sound pressure or air movement, so the less the cabinet resonates, the more focused the bass frequencies.  That is why you almost always see subwoofer cabs built like a battle ship,  at least the good ones?    To get to your point , I used both MDF, and BB  because I wanted a massively built, and dead cab for the huge bass driver, and I wanted plywood because it looks awesome, and keeps with the heritage approach.  The biggest reason was that i couldn't find maple BB, and I had just enough maple veneer to do these.   LOL,  HE HE!  I also wanted to build the dam things and not wait,  Laughing out loud now!!   I wanted to build kind of a Cornscala on steroids.    Or, "JONSCALA" !!  LOL!    

     

    Most kind Regards,,    Jon

    • Like 2

    Cornscala

    in 2-Channel Home Audio

    Posted

    43 minutes ago, Khornukopia said:

    Plywood and MDF.   I like it.

     

    Yea, I have built a ton of speakers, and I love plywood but the inert nature of MDF along with laminating ply onto it, is pretty much a perfect storm of solidity and beauty.

     

    They are HEAVY!  I will ad a minimal amount of dampening to strategic locations, but that should do it.  They are VERY well built, and extremely rigid.   

     

    Kind Regards,,  Jon

    • Like 1

    Cornscala

    in 2-Channel Home Audio

    Posted

    15 hours ago, hybridamp said:

    Wow.  Just, wow.

     

    7 minutes ago, lakedmb said:

    On second thought, they seem terrible, but don’t worry, I’m willing to help out and take them off your hands. 😉

     

    Very impressive! 

     

    7 minutes ago, lakedmb said:

    On second thought, they seem terrible, but don’t worry, I’m willing to help out and take them off your hands. 😉

     

    Very impressive! 

     

    Thanks,,  I put a lot of work into them, took about 2 weeks.   I will send pics when they are finished.  I have a feeling they will sound pretty dam good!

     

    Cheers,  Jon

    Cornscala

    in 2-Channel Home Audio

    Posted

    16 hours ago, angusruler said:

    great! clear is the way to go. maybe even a satin finish? u can always put a gloss coat if need be.

     

     

    Yea, I am clear coating them now.  I will post more photos when they are all together.

     

    Cheers

    Cornscala

    in 2-Channel Home Audio

    Posted

    1 hour ago, No.4 said:

    I think they look great! Any build information, or photos? Are you going to stain, veneer or paint? Plans for drivers and networks?

     

    I will upload more photos of the inner cabs later.  Networks are ALK Extreme slope crossovers.  I paid over a grand for them, pricey but the best out there.  Drivers are Crites cast frame woofers,  B&C Midrange compression horns, and B&C tweeters recommended by AL at ALK Engineering.   Just going to clear coat them,  they are already fully veneered in maple, and solid maple front edging.  I thought about staining them, but I really love the clean look of the maple.  It is so clean looking, and the maple looks even better in person.  Unfortunately the pictures don't even do them justice.   

     

    Regards,Jon

    Cornscala

    in 2-Channel Home Audio

    Posted

    1 hour ago, YK Thom said:

    Very impressive. A lot work in that wood horn. More detail than I have ever seen in a Cornscala. More like a Volti Audio level of build quality.

     

     

    thanks!!  I wanted them to be special.  With the integrated horn, I think they are even nicer than the Volti!  

     

    Thanks,,Jon

    • Like 1

    Cornscala

    in 2-Channel Home Audio

    Posted

    1 hour ago, Westcoastdrums said:

    I think:

    I like it.   Strong work. What will the driver array of choice be? 

     

    I am using the Crites cast frame woofer, B&C Midrange compression drivers, and B&C Tweeters recommended by Al over at ALK.  He built the 2 piece crossovers.  I went all out on the parts for these, the crossovers are the extreme slope, and cost me over a grand.  They are the absolute best you can get for these though.   These cabs make everything sound magnificent, they turned out insanely heavy, so I put them on wheels that are concealed inside the bottom plinth.  Pretty slick!!  

    • Like 1

    Cornscala

    in 2-Channel Home Audio

    Posted

    1 hour ago, No.4 said:

    I think they look great! Any build information, or photos? Are you going to stain, veneer or paint? Plans for drivers and networks?

     

     

    Yea,   They look so clean in the maple that I think I will just clear coat them.  They are fully veneered in Maple.   They are built with MDF inner cab and Maple ply outer cab.

    The front baffle is 1.5" MDF that I veneered with maple so I could integrate the fasten horn into them.  I wanted a very clean professional look.    I will upload some inner photos later.

     

    Regards,,Jon

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