Another speaker build...

DocfosterDocfoster
in DIY
This one's for the second system.
Decided I'd try the little brothers of the drivers in my main speakers.
Got started on the cabinets on the weekend, and today the Monacor SP-308CX coaxial drivers arrived.
Thankfully they fitted perfectly into the holes I'd already cut.
Next is finish drilling the cabinets, and then spray them.


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Comments

  • uglymusicuglymusic
    You like those Monacors, by the look of it.
  • uglymusicuglymusic
    Does the foot have a significant effect on the sound? o:)
  • DocfosterDocfoster
    uglymusic said:
    You like those Monacors, by the look of it.
    I do.
    They’re like Tannoys. But good.
    The horn HF unit has great dynamics and the bass unit is tight and articulate. At least on the 10 inch versions. We’ll see about these smaller ones…
  • DocfosterDocfoster
    uglymusic said:
    Does the foot have a significant effect on the sound? o:)
    It’s a patented design feature, Dave.
  • cj66cj66
    Nahhh Dave, Ben is messing with our heads, it's really an occasional table with ultrasonic plate and cup holder built in.

    As for the foot, that's the only way to get toe-in for upwards firing units.
    Yup, let's all groan together ;)
  • uglymusicuglymusic
    Docfoster said:
    uglymusic said:
    You like those Monacors, by the look of it.
    I do.
    They’re like Tannoys. But good.
    The horn HF unit has great dynamics and the bass unit is tight and articulate. At least on the 10 inch versions. We’ll see about these smaller ones…
    Tannoys can be good. Occasionally  ;)

    I lived with DC2000s for a while back in the day and loved 'em. So I guess I'd like those Manacles  :p  
  • uglymusicuglymusic
    cj66 said:
    Nahhh Dave, Ben is messing with our heads, it's really an occasional table with ultrasonic plate and cup holder built in.

    As for the foot, that's the only way to get toe-in for upwards firing units.
    Yup, let's all groan together ;)
    I wish I'd thought of that!
  • DocfosterDocfoster
    cj66 said:
    Nahhh Dave, Ben is messing with our heads, it's really an occasional table with ultrasonic plate and cup holder built in.

    As for the foot, that's the only way to get toe-in for upwards firing units.
    Yup, let's all groan together ;)
  • DocfosterDocfoster
    uglymusic said:
    Docfoster said:
    uglymusic said:
    You like those Monacors, by the look of it.
    I do.
    They’re like Tannoys. But good.
    The horn HF unit has great dynamics and the bass unit is tight and articulate. At least on the 10 inch versions. We’ll see about these smaller ones…
    Tannoys can be good. Occasionally  ;)

    I lived with DC2000s for a while back in the day and loved 'em. So I guess I'd like those Manacles  :p  
    Yes. In fairness, this dual concentric journey was inspired by the vintage Tannoy Eaton's I bought (and then sold) a few years ago. Plenty of potential!
  • uglymusicuglymusic
    Docfoster said:
    uglymusic said:
    Docfoster said:
    uglymusic said:
    You like those Monacors, by the look of it.
    I do.
    They’re like Tannoys. But good.
    The horn HF unit has great dynamics and the bass unit is tight and articulate. At least on the 10 inch versions. We’ll see about these smaller ones…
    Tannoys can be good. Occasionally  ;)

    I lived with DC2000s for a while back in the day and loved 'em. So I guess I'd like those Manacles  :p  
    Yes. In fairness, this dual concentric journey was inspired by the vintage Tannoy Eaton's I bought (and then sold) a few years ago. Plenty of potential!
    I suspect this may have come up in posts connected with your earlier build, but I notice they seem to be designed for PA use. That kind of starts to exercise my audiophile prejudices  ;)
  • DocfosterDocfoster
    You are right Dave.
    I was initially sceptical. But they sound good to me.👍
  • uglymusicuglymusic
    Docfoster said:
    You are right Dave.
    I was initially sceptical. But they sound good to me.👍
    Cool.
  • cj66cj66
    ATC were born in the studio/PA world. They do some great domestic kit.
  • uglymusicuglymusic
    cj66 said:
    ATC were born in the studio/PA world. They do some great domestic kit.

    Trudat!
  • DocfosterDocfoster
    I’m not sure what Monacor’s origins are. They seem to make all sorts.
    I’ve never been disappointed with any of their drivers that I’ve tried (mainly tweeters).
  • DocfosterDocfoster
    edited June 2022
    Btw, I stupidly ordered small 330ml can of primer, so didn’t have quite enough.
    Have ordered some more.
    Spent this morning making up the crossovers.
  • DocfosterDocfoster
    Fruits of my labours so far.
    As you can see priming of cabinets is incomplete. Waiting for more primer...

  • uglymusicuglymusic
    Looks like good crossover work there, Ben.
  • cj66cj66
    edited June 2022
    It is good practice to have the inductors on one board sitting on different planes to each other.

    Thus...







  • uglymusicuglymusic
    You're a leader in your field  :#
  • DocfosterDocfoster
    Hi cj66 said:
    It is good practice to have the inductors on one board sitting on different planes to each other.

    Thus...







    I sir, am a contrarian.
  • cj66cj66
    Good for you! A shame I didn't use the phrase "It is convention...", would have been a better fit with your response.

    Meanwhile...




  • DocfosterDocfoster
    Understood!👍
    (they don’t look as nice though, do they?)
  • uglymusicuglymusic
    Are we applying WAF to crossovers now? >:)
  • DocfosterDocfoster
    Thing is, these speaker are for the conservatory / garden. That’s outside my domain.
  • uglymusicuglymusic
    You have a domain????
  • cj66cj66
    It's all in your own minnnnnnd :#





  • uglymusicuglymusic
    Nah. There's nuffink in my mind :/
  • DocfosterDocfoster
    cj66 said:
    It's all in your own minnnnnnd :#





    I hope that vortex was swirling on a plane perpendicular to that of the nearest swirling vortex.
  • cj66cj66
    No, silly. You can't put record players on their sides!




  • DocfosterDocfoster
    edited June 2022
    :-/ I distinctly remember my mate’s Dad owning this back in the 80s…



  • DocfosterDocfoster
    The CJ-mod.
    Quite difficult to check in an according way...


  • cj66cj66
    Docfoster said:
    :-/ I distinctly remember my mate’s Dad owning this back in the 80s…



    I didn't know Mitsi made those, Sony, Sharp, Philips I remember. Some new efforts around too, I think Pro-Ject have/had one...checking, checking....

    Ooh yeah, funky


    Docfoster said:
    The CJ-mod.
    Quite difficult to check in an according way...



    The ayes have it! (LIving on the ceiling, no more room down there)
  • uglymusicuglymusic
    Ah, Chris' favourite dessert!:


  • uglymusicuglymusic
    cj66 said:
    Docfoster said:
    :-/ I distinctly remember my mate’s Dad owning this back in the 80s…



    I didn't know Mitsi made those, Sony, Sharp, Philips I remember. Some new efforts around too, I think Pro-Ject have/had one...checking, checking....

    Ooh yeah, funky


    Docfoster said:
    The CJ-mod.
    Quite difficult to check in an according way...



    The ayes have it! (LIving on the ceiling, no more room down there)
    Is there a reason for vertical turntables? Except for amusement, of course.
  • DocfosterDocfoster
    uglymusic said:
    cj66 said:
    Docfoster said:
    :-/ I distinctly remember my mate’s Dad owning this back in the 80s…



    I didn't know Mitsi made those, Sony, Sharp, Philips I remember. Some new efforts around too, I think Pro-Ject have/had one...checking, checking....

    Ooh yeah, funky


    Docfoster said:
    The CJ-mod.
    Quite difficult to check in an according way...



    The ayes have it! (LIving on the ceiling, no more room down there)
    Is there a reason for vertical turntables? Except for amusement, of course.
    And how does that arm work?

  • DocfosterDocfoster
    We have sound.
    Just beta testing at the moment. (I'm still waiting for the acoustic foam to line the cabinet, and I need to trim the port.)
    But... not too shabby.
    My main relief is that the balance between the drivers is fine. And the smooth and dynamic presence of the HF horn unit that I like in the 310 is evident in these smaller versions. For me that's their main attraction. Bass is inevitably less. But fine for an 8 inch.
    I went for a similar crossover configuration to the larger DIY ones beneath. I usually attenuate the HF unit by ear. From scratch. But I consulted the specs for the 308s and the LF unit is 1dB lower relative to its HF unit than the larger 310 versions, so I simply adjusted the L-pad design at which I arrived for the 310 speakers. I'm not going to spend any time tweaking it. These speakers are destined to sit on the floor, right next to each other in the conservatory. So finessing the design seems pointless. 
    I hate the colour. But that was the wife's choice.


  • uglymusicuglymusic
    Docfoster said:
    uglymusic said:
    cj66 said:
    Docfoster said:
    :-/ I distinctly remember my mate’s Dad owning this back in the 80s…



    I didn't know Mitsi made those, Sony, Sharp, Philips I remember. Some new efforts around too, I think Pro-Ject have/had one...checking, checking....

    Ooh yeah, funky


    Docfoster said:
    The CJ-mod.
    Quite difficult to check in an according way...



    The ayes have it! (LIving on the ceiling, no more room down there)
    Is there a reason for vertical turntables? Except for amusement, of course.
    And how does that arm work?


    Indeed!
  • uglymusicuglymusic
    Well done!
    What is the colour, some kind of dark reddy brown?
  • cj66cj66
    edited June 2022
    uglymusic said:
    And how does that arm work?


    Indeed!

    "The tonearm has a special spring that allows it to track the record with the right downward force that actually works well during play."

    I.e. spring loaded VTF.

    PLUS it's wall mountable and is available in a left handed version.... :o



  • cj66cj66
    edited June 2022
    So Ben, are you going to infiltrate some secret naval base with your mini-subs. ( yes, I know they're full range... hang on, does that mean they go further ;) )
  • uglymusicuglymusic
    cj66 said:
    uglymusic said:
    And how does that arm work?


    Indeed!

    "The tonearm has a special spring that allows it to track the record with the right downward force that actually works well during play."

    I.e. spring loaded VTF.

    PLUS it's wall mountable and is available in a left handed version.... :o




    Sounds like a recipe for dropping expensive vinyl. And, I'm not sure about those springs (that spring?).
  • uglymusicuglymusic
    edited June 2022
    cj66 said:
    So Ben, are you going to infiltrate some secret naval base with your mini-subs. ( yes, I know they're full range... hang on, does that mean they go further ;) )

    They're ready to rumble :D
  • DocfosterDocfoster
    uglymusic said:
    Well done!
    What is the colour, some kind of dark reddy brown?
    In the right light, yes.
    In the wrong light, more like a pooey brown.
  • DocfosterDocfoster
    cj66 said:
    uglymusic said:
    And how does that arm work?


    Indeed!

    "The tonearm has a special spring that allows it to track the record with the right downward force that actually works well during play."

    I.e. spring loaded VTF.

    PLUS it's wall mountable and is available in a left handed version.... :o



    Political correctness gone mad.
  • DocfosterDocfoster
    Now in place.

    Sound much better in here, weirdly.
    I've noticed before that any speaker placed close to the "wall" in the conservatory gets a huge uplift in...I'd guess...the 90Hz region.
    Great that the Claymore now has some decent friends to play with.
  • uglymusicuglymusic
    Docfoster said:
    Now in place.

    Sound much better in here, weirdly.
    I've noticed before that any speaker placed close to the "wall" in the conservatory gets a huge uplift in...I'd guess...the 90Hz region.
    Great that the Claymore now has some decent friends to play with.

    Cool!
  • uglymusicuglymusic
    Docfoster said:
    uglymusic said:
    Well done!
    What is the colour, some kind of dark reddy brown?
    In the right light, yes.
    In the wrong light, more like a pooey brown.

    Nice!
  • cj66cj66
    edited June 2022
    They actually look right for a conservatory in earthy ( aka pooey ) brown!
    I think Mrs Ben had the right idea.

    Hmmmm, Claymore, earthy, a little magic in the sound......

    Could it be....

    The Sword in the Stone ( aka anvil )

    Are you Arthur? The true born king of all Britain!

    What sorcery is this?!
  • DocfosterDocfoster
    Some wonderful connections there. :-D
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