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Low Earth Orbit
DIY Audio
B&C speaker builds some common questions
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<blockquote data-quote="Bennett Prescott" data-source="post: 214050" data-attributes="member: 4"><p>Hey Masis,</p><p></p><p>Fun that you're thinking of building our suggested designs! FYI we have some new ones coming, but they will also be ported so perhaps not any more interesting or relevant to you. </p><p></p><p>It's hard to give advice on punch and smooth response without a bit of context. I think ported designs get a bad rap for being ringy or "slow", when this is more often a consequence of cabinet design than some inherent flaw in ported designs. A sealed design can be made very resonant as well, just make the box large - as many designers do in order to get flat sensitivity response in the low frequencies. Basically the big box spreads the low frequency energy way out in time, and when the frequency response is taken all that energy is integrated into one graph and makes the graph look flat. In reality it's not so flat, but it does go on a long time...</p><p></p><p>We don't design transducers to have flat response and I don't suggest designing cabinets to have a flat response, unprocessed. That is full of tradeoffs that mostly reduce sound quality and durability. If you use a driver with a strong motor, in a small box, with higher port tuning, you will have all the impact and tight sound you want - because the system is not very resonant (e.g. it is low-Q). Maybe my presentation on transducer design goals below could be helpful. Also linked from my personal website: <a href="https://bennettprescott.com/downloads/TechTalk_Design_202002.pdf" target="_blank">7.1MB PDF</a></p></blockquote><p></p>
[QUOTE="Bennett Prescott, post: 214050, member: 4"] Hey Masis, Fun that you're thinking of building our suggested designs! FYI we have some new ones coming, but they will also be ported so perhaps not any more interesting or relevant to you. It's hard to give advice on punch and smooth response without a bit of context. I think ported designs get a bad rap for being ringy or "slow", when this is more often a consequence of cabinet design than some inherent flaw in ported designs. A sealed design can be made very resonant as well, just make the box large - as many designers do in order to get flat sensitivity response in the low frequencies. Basically the big box spreads the low frequency energy way out in time, and when the frequency response is taken all that energy is integrated into one graph and makes the graph look flat. In reality it's not so flat, but it does go on a long time... We don't design transducers to have flat response and I don't suggest designing cabinets to have a flat response, unprocessed. That is full of tradeoffs that mostly reduce sound quality and durability. If you use a driver with a strong motor, in a small box, with higher port tuning, you will have all the impact and tight sound you want - because the system is not very resonant (e.g. it is low-Q). Maybe my presentation on transducer design goals below could be helpful. Also linked from my personal website: [URL='https://bennettprescott.com/downloads/TechTalk_Design_202002.pdf']7.1MB PDF[/URL] [/QUOTE]
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B&C speaker builds some common questions
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