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Low Earth Orbit
DIY Audio
subwoofer advise
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<blockquote data-quote="Moritz Bachmann" data-source="post: 215157" data-attributes="member: 13680"><p>hey guys, I need some advices/ help on my next project, a subwoofer for a compact PA-Setup.</p><p>This setup is meant for DJ-Monitoring and small gigs, where really high SPL isn´t required.</p><p>The Top is not finished, so no measurements here, but it uses a <a href="https://www.don-audio.com/Mundorf-AMT164U-Hochtoener-8-Ohm-AMT29CM11-R" target="_blank">Mundorf AMT</a> and a Beyma 10MC700ND in a closed box (maybe this will be changed to BR, as I have not that much experience on how much SPL is really required, and the Beyma in the closed box will be limited to max 115dB if crossed over at 100-120Hz, acc. to my poor Hornresp skills)</p><p>So now to the sub requirements, from most-important to least:</p><p>-sound quality (I use a ~400€ AMT and a 200€ Midbass driver-hopefully in a CB, so I also want the sub to be precise, fast, and so on, you know what what I mean)</p><p>-compact design, MAX. 150L, better 120-130L</p><p>-of course high SPL and good low end but I don´t know what is possible here. I think 40Hz and 125dB would be nice to have, but the two points before are more important</p><p></p><p>What´s not (so) relevant:</p><p>-The driver... everything from 12"-18" is possible, if it can meet the requirements (300-400€ max. are OK if they are worth it)</p><p>Multiple enclosures are possible, the price range is planned for two of them, so it´s more like 600-800€, maybe 4 cheaper 12" will do it better than 2x15"?</p><p>-complicated build- I have a carpenter and a CNC router on my side</p><p>-Amp-Power, there is a LabGruppen FP10000Q waiting to get used (although this might change, as the subs will get an own amp-module maybe)</p><p></p><p>I started with 12" 6th order BP Designs from B&C and 18sound, but they both didn´t seem good enough, so I tried to re-design them... but I don´t want to built X prototypes, and I know enough about Speaker Design to not think that I can one-shot a perfect BP- design from a "good" Hornresp sim.</p><p>Then I came to 15" BR enclosures, the drivers are not that more expansive, and the output from 40-100Hz is compareable.</p><p></p><p>The Drivers I tried the 12" BP system:</p><p>Beyma 12P1000ND</p><p></p><p>12" BR-design:</p><p>B&C 12NW100</p><p>Oberton 12NSW600</p><p></p><p>Drivers for 15"BR:</p><p></p><p>B&C 15SW100ND/ 15SW115ND</p><p>Beyma 15LEX1000/ 15LEX1600</p><p>Oberton 15NSW600</p><p></p><p></p><p>Actually there are so many possibilities that I have lost the track many times, so some some advices/ hints for any good directions are very welcomed.</p><p>It´s also not that I really WANT to design my own sub (not yet) so if anyone knows, or would share a good design with me, please let me know.</p><p></p><p>I hope some of you can help me out here</p></blockquote><p></p>
[QUOTE="Moritz Bachmann, post: 215157, member: 13680"] hey guys, I need some advices/ help on my next project, a subwoofer for a compact PA-Setup. This setup is meant for DJ-Monitoring and small gigs, where really high SPL isn´t required. The Top is not finished, so no measurements here, but it uses a [URL='https://www.don-audio.com/Mundorf-AMT164U-Hochtoener-8-Ohm-AMT29CM11-R']Mundorf AMT[/URL] and a Beyma 10MC700ND in a closed box (maybe this will be changed to BR, as I have not that much experience on how much SPL is really required, and the Beyma in the closed box will be limited to max 115dB if crossed over at 100-120Hz, acc. to my poor Hornresp skills) So now to the sub requirements, from most-important to least: -sound quality (I use a ~400€ AMT and a 200€ Midbass driver-hopefully in a CB, so I also want the sub to be precise, fast, and so on, you know what what I mean) -compact design, MAX. 150L, better 120-130L -of course high SPL and good low end but I don´t know what is possible here. I think 40Hz and 125dB would be nice to have, but the two points before are more important What´s not (so) relevant: -The driver... everything from 12"-18" is possible, if it can meet the requirements (300-400€ max. are OK if they are worth it) Multiple enclosures are possible, the price range is planned for two of them, so it´s more like 600-800€, maybe 4 cheaper 12" will do it better than 2x15"? -complicated build- I have a carpenter and a CNC router on my side -Amp-Power, there is a LabGruppen FP10000Q waiting to get used (although this might change, as the subs will get an own amp-module maybe) I started with 12" 6th order BP Designs from B&C and 18sound, but they both didn´t seem good enough, so I tried to re-design them... but I don´t want to built X prototypes, and I know enough about Speaker Design to not think that I can one-shot a perfect BP- design from a "good" Hornresp sim. Then I came to 15" BR enclosures, the drivers are not that more expansive, and the output from 40-100Hz is compareable. The Drivers I tried the 12" BP system: Beyma 12P1000ND 12" BR-design: B&C 12NW100 Oberton 12NSW600 Drivers for 15"BR: B&C 15SW100ND/ 15SW115ND Beyma 15LEX1000/ 15LEX1600 Oberton 15NSW600 Actually there are so many possibilities that I have lost the track many times, so some some advices/ hints for any good directions are very welcomed. It´s also not that I really WANT to design my own sub (not yet) so if anyone knows, or would share a good design with me, please let me know. I hope some of you can help me out here [/QUOTE]
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