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Fun with the new ND Passive's - The Passive Aggressives

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  • Wolf
    replied
    Reposted....

    Ode to a small speaker...

    When the wires pull the speaker off the stand,
    Or when they barely fit the palm of your hand,
    Or internally they don't go as planned,
    Then it's a small design.

    When the bass makes them dance and oscillate,
    and also you hyperventilate,
    and you question the project's thermal state,
    Then it's a small design.

    When nothing else will fit inside,
    then bending rules you past abide',
    But all your logic's justified,
    Then it's a small design.

    If empty cabs weigh less than parts,
    and going outside the box is art,
    Then you'll know right from the start,
    That it's a small design.

    Later,
    Wolf

    Leave a comment:


  • tomzarbo
    replied
    Originally posted by djg View Post
    Thanks Tom, that board was among the plain maple shrink wrapped stock of 1 bys at Menards. My crossover has the caps stacked on top of the resistors, very tight. Not photogenic. I was wanting to build your Bantams but they seemed really tight with those Peerless PRs.
    The PR actually made it easier than trying to fit a board in there believe it or not. No issue fitting everything by stacking resistors on caps, etc. just like you did with yours. I would think that having two PR's plus a woofer would really take up space in there. Wonder if a 'crossover on a stick' would work for these.

    I'm reminded of Wolf's nearly famous poem about 'Small Speakers' which seems very fitting in this design....

    TomZ

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  • djg
    replied
    Thanks Tom, that board was among the plain maple shrink wrapped stock of 1 bys at Menards. My crossover has the caps stacked on top of the resistors, very tight. Not photogenic. I was wanting to build your Bantams but they seemed really tight with those Peerless PRs.

    Leave a comment:


  • tomzarbo
    replied
    Yikes! That maple is just gorgeous looking! I've seen a similar quilted look on maple veneer, but I didn't realize that it could run through a whole board like that, or that it would look so nice.
    I'd love to see a pic of someone's crossover board on these.
    Those are beautiful. Nice job!

    TomZ

    Leave a comment:


  • djg
    replied
    Done. Sound nice in a 2.1 setting. If you want a set of these, you might want to wait for the kit. The drivers are a bit fussy to mount. The woofer has a terminal mount requiring a relief in the mounting hole that gets really close to the edge of the woofer frame. The tweeter is not quite a fractional hole size, I went 1 3/8" with my Jasper jig, and had to enlarge the hole by hand. It's really crowded inside too.

    Other than that, very cool little speakers Maybe they'll loosen up and get bassier. I just finished them.

    Leave a comment:


  • djg
    replied
    Watco oil finish. Grain looks better than my picture portrays it.

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  • mga2009
    replied
    Originally posted by mattp View Post

    Unfortunately an 8 ohm version is not in the works right now. The 4 ohm ND91 simply works best in this box alignment.

    Chances are your AVR will not have a problem driving these, it is a pretty easy 4 ohm load, although it ultimately depends on your AVR. Don't forget we have a multitude of small amps that will work well at 4 ohms that won't break the bank.
    My AVR is a Sony STR DN1080, it does not have preamp outputs, not even for the mains! And I wanted to use the Passive Agressives for surround duty... Thanks!

    Leave a comment:


  • mattp
    replied
    Originally posted by mga2009 View Post
    good news about the kit! sadly, if it is a 4ohm speaker, my sony avr will not be able to power them. an 8ohm version is not possible? Sent from my ONEPLUS A3000 using Tapatalk
    Unfortunately an 8 ohm version is not in the works right now. The 4 ohm ND91 simply works best in this box alignment.

    Chances are your AVR will not have a problem driving these, it is a pretty easy 4 ohm load, although it ultimately depends on your AVR. Don't forget we have a multitude of small amps that will work well at 4 ohms that won't break the bank.

    Leave a comment:


  • mga2009
    replied
    good news about the kit! sadly, if it is a 4ohm speaker, my sony avr will not be able to power them. an 8ohm version is not possible? Sent from my ONEPLUS A3000 using Tapatalk

    Leave a comment:


  • mattp
    replied
    Cabinet samples were promising but not perfect so we are awaiting a couple small changes. We are trying to make knock down cabinets as easy to clamp together as possible.

    Kevin,

    For near field applications these will sound best raised a few inches off of the desk.

    FWIW, I had these setup on the fire place mantle in my (late) grandparents house last week and they easily filled the living room, dining room and kitchen even at low levels. I am still amazed at the ease of the bass response these things have.

    Leave a comment:


  • Dropcarve
    replied
    Originally posted by mattp View Post
    Guys,

    A kit is forthcoming so I would urge you to wait a little bit to save on the cost of these little guys if you are inclined to want a pair. I will have cabinet samples tomorrow which means the manual can be started soon. (Assuming no cabinet changes are needed.)

    Also, yes, if certain parts I posted are not in stock they can be replaced with other brands of the same value. These are a 4 ohm speaker.

    Matt
    Awesome news! Thank~you Matt!!
    I will order 1 or 2 or 3 kits as soon as they are available.

    Leave a comment:


  • Kevin K.
    replied
    Originally posted by djg View Post
    So I was looking through the hum drum lumber at Menards for this project, they have some 1/2" stock in a few species. Then I saw this maple 3/4" board with really nice grain, so I bought it. These drivers really need relief in the back of the baffle.
    That's a good looking board you picked up. Should really come to life with some finish applied to it. Good luck!

    Leave a comment:


  • djg
    replied
    So I was looking through the hum drum lumber at Menards for this project, they have some 1/2" stock in a few species. Then I saw this maple 3/4" board with really nice grain, so I bought it. These drivers really need relief in the back of the baffle.

    Leave a comment:


  • Kevin K.
    replied
    I like the idea of this build Matt but was thinking of changing it up a little. Mine would most likely be for desktop use, so there would be some benefit to getting the tweeter up a little higher by putting all the drivers and PR's on the front baffle, T/W/PR/PR. Was also thinking of maybe building a partition that runs with the height of the cabinet so the crossovers could be mounted to the back of it via a removeable back on the cabinet. I'll model something up soon and share. Nice work Matt!

    Leave a comment:


  • djg
    replied
    Too late.

    (For me).

    Leave a comment:

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