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    unahm
    Member

    I’ve just joined this forum after discovering Toid’s Home Theater designs on YouTube. Fantastic stuff 🙂

     

    I’m in the process of finally building my ‘home studio’, and so my main goals on this forum are to learn about speakers that would be good for a monitoring/listening environment.

     

    I’ve built a few projects in the past, and most recently a Synergy-style point-source horn based on other people’s designs, and along the way I realised that a good enclosure doesn’t need to be complicated provided you have the right drivers!

     

    I’ve just started looking into crossover designs, DSP and so on, and I’m here to learn, so I expect I’ll be lurking for the most part!

     

    Glad to be here!

  • Greetings!

    jackmsc updated 7 months, 2 weeks ago 1 Member · 4 Replies
  • ajc9988

    Member
    November 14, 2021 at 8:27 pm
    Posted by: @unahm

    I’ve just joined this forum after discovering Toid’s Home Theater designs on YouTube. Fantastic stuff 🙂

     

    I’m in the process of finally building my ‘home studio’, and so my main goals on this forum are to learn about speakers that would be good for a monitoring/listening environment.

     

    I’ve built a few projects in the past, and most recently a Synergy-style point-source horn based on other people’s designs, and along the way I realised that a good enclosure doesn’t need to be complicated provided you have the right drivers!

     

    I’ve just started looking into crossover designs, DSP and so on, and I’m here to learn, so I expect I’ll be lurking for the most part!

     

    Glad to be here!

    If you have the room, but not the speakers yet, one approach is to understand how loud you will want the speakers at a specific distance. The further away you are, the quieter the speaker is. You also can have boundary gains, meaning room gain, gain from the second speaker, effects of any room treatments on reflections, etc.

    But, if you want, you can ignore all that and take just the dB rating you want to hit at a listening distance you already know for where you will be most of the time.

    From there, you now have to look if you are going active or passive, with an amp on an active speaker or external amplification. If you already have your amplifier and already know your wattage limitation, you now have two very important pieces of information: 1) target dB and 2) power limits of your amplifier. This can immediately restrict the sensitivity of the drivers that can be used, as you can only push so much wattage and you can figure out if a driver of a specific sensitivity with that much wattage could hit the target dB.

    Now that you have the number of drivers to review reduced, you can start looking at preferred Ohms of the speaker (you had to do that above to an extent with the wattage of your amplifier, but this is where you look at the options left and make a decision on what you want for this speaker if you ever upgrade the amp, trying to guess on future decisions you might make). Between that and reviewing the frequency response graphs, along with keeping an eye on Vas and recommended box sizes, you can start throwing drivers into winISD or whichever box program you prefer, to start comparing drivers. Remember, though, if you like certain curves other than flat, you want to start planning that with box shape/box chamber volume and driver selection. So if you like a boosted bass, or a bright tweeter, remember to look for that as a possible driver in selection.

    Remember, if the problem can be solved in changing the physical dimensions, so long as done consciously, you should do it there. There are times, though, where some things can be done with the DSP, so you let the DSP do it, that way to achieve the other goal in the physical design. But, DSP cannot do everything. For example, DSP cannot fix your box resonance issues, or first port resonance, etc. So if you must do something to fix port resonance issues or box resonance issues, do that, while leaving compensation for baffle step in the DSP (although baffle diffraction can also be an issue). So choosing what is permanently there in physical structure design and what can be dealt with in software (like phase and time delays rather than setting a driver back further for time alignment) is something you will learn with time. But, if possible, trying to deal with it in initial design is preferable.

    And, starting with the right drivers is important and does simplify things.

     

  • stevem

    Member
    November 15, 2021 at 5:08 am

    Hello everyone, just joined the forum after being introduced to Nick through the guys on the Facebook DIY Speakers group. I found some DIY speakers that I thought would be great for a first time DIY speaker project and posted as such in the group. I asked if anyone had built them and what they thought. I got a lot of responses but the best was… 

    I think they are great but then again I may be biased, I designed them.

    The person responding to my post was of course Nick. The speakers were his now legendary Dinas! Due to covid and some other issues it took me a year+ to build them. All I had was a skill saw and a chop saw but damn if they are not a bright spot in the room now. 

    I know nothing about building speakers or electronics. I hope to learn a lot here though.  I have rebuilt the main board on one of my amps though, but all that really taught me was how to solder. Oh don’t get me wrong I can solder like a mofo now. 🙂

    My background is in computers, hardware and software, mostly Microsoft Cloud/Office 365, light programing and scripting. I’m mostly retired now and amusing myself with learning all that stuff I never had time too when I was working. I paint miniatures and collect comics.

    And I like moon light walks on the beach with my dog. :)~

    This is my current set up

    Home Theater

    1. LG C1 77
    2. Marantz SR6014 9.1 Ch
    3. Onkyo M5010 2 Ch
    4. Klipsch 6000 7.2.4

    Stereo

    • 2x Goldentube SE-40
    • Custom Bedini 25×25 Sub Pre Amp
    • Audio Research Pre Amp Model LS9
    • Audio Research Phono Pre Amp Model PH3     
    • Chartwell speakers ls3/5a

     

  • livinloudwithandy

    Member
    November 16, 2021 at 6:12 am
    Posted by: @unahm

    I’ve just joined this forum after discovering Toid’s Home Theater designs on YouTube. Fantastic stuff 🙂

     

    I’m in the process of finally building my ‘home studio’, and so my main goals on this forum are to learn about speakers that would be good for a monitoring/listening environment.

     

    I’ve built a few projects in the past, and most recently a Synergy-style point-source horn based on other people’s designs, and along the way I realised that a good enclosure doesn’t need to be complicated provided you have the right drivers!

     

    I’ve just started looking into crossover designs, DSP and so on, and I’m here to learn, so I expect I’ll be lurking for the most part!

     

    Glad to be here!

    Welcome ! Enjoy your stay 

  • jackmsc

    Member
    November 23, 2021 at 9:39 pm

    Hey, good?