![]() A subwoofer that shakes the windows when an explosion goes off in a movie may not be necessary for casual music listening. ![]() If you want to use them for Home Theatre use then you will probably have some different design considerations to a stereo setup for pure music reproduction. How will I use them (this should maybe have come before the above point).If you want them to use them at parties then that is a very different situation. If you are only going to use them for quiet listening in your lounge room this is probably not going to be as much of an issue. How loud do they need to play? This is not such an easy question either as it will be influenced by other factors such as room size and listening distance.You need to work out which ones you can live with and which ones you can’t. Designing a speaker is all about compromises. If space is a constraint then you are going to have to sacrifice Bass Extension or efficiency. Hoffman’s Iron law says you can only have 2 out of the following three things: 1) Bass Extension, 2) Efficiency, 3) A small enclosure. What are your space constraints (may not be relevant if SAF above is a strong factor).Better to bounce it off your spouse first, and get them involved in the process, getting buy in, rather than to go ahead and design your dream speaker and then find you’re in a “Your speakers go, or I go!!” type situation (unless that is actually what you desire) Is SAF (Spouse Appreciation Factor) something you need to consider? This can be one of the biggest influences on your design constraints.There are many things that you need to consider here. This may sound easy enough but it can be quite a difficult task. Please use that thread for questions and discussions or suggestions and we will try and add just relevant content to this thread non complying posts may be mercilessly moved to the other thread. So lets get started! Lets keep this thread uncluttered, A separate Designing your own speaker from scratch discussion thread has been created. I am an advocate of simulation as part of the design process so later posts will feature this, but even if you don't want to simulate hopefully you will still find the thread useful. The intent of this thread is to give someone a starting point and things to think about rather than a prescription on how to do it. I’m not interested in starting any religious wars on design choices There are many different design philosophies, and it is not my intent to try and cover them all, though where appropriate different directions may be suggested. I’m also happy for this to be more of a live thread with suggestions for corrections or additions to the core posts taken on board and potentially amended. Note that I am not an expert, I am just a guy who has been playing with speakers for the better part of 30 years, I’ve learnt quite a lot just by experimenting, a lot from reading and I’ve probably forgotten at least half of what I at one point knew or understood (or thought I understood!!).Īs I don’t have expertise in all areas (some might claim in any!) I’m thinking that I will put in a number of placeholder posts, with the idea that members with more experience in those areas can write a post and I (or another Moderator) can paste the content into the relevant placeholder post. If you have got this far and are still game then read on If you haven’t done any of the above you may want to have a look at Paul Carmody’s excellent FAQ " Proven Designs" first, which covers why you should build a proven design as your first project. You bought books like David Weems' “ Designing Building and testing your own speaker system” and Vance Dickasons " Loudspeaker Design Cookbook" and have decided it is time to design something from scratch.Īlternately you may have followed AllenB’s excellent tutorial " Designing Crossovers Without Measurements" but have decided to take it to the next level and do measurements in which case Joseph D'Appolito's book " Testing Loudspeakers" and his article " Testing Loudspeakers, Which Measurements Matter" will be useful. ![]() Perhaps you started out like me, cobbling together random drivers with off the shelf or textbook crossovers, but never quite worked out why they didn’t work out as well as you imagined. You have been doing this DIY speaker thing for a while, probably built a couple of proven designs from people like Zaph, Troels Gravesen, Paul Carmody or any number of other successful designers. ![]()
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