BEYMA 18G480 BR subbass |
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GGSoundfan
New Member Joined: 16 February 2020 Location: Belgium Status: Offline Points: 2 |
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Posted: 16 February 2020 at 1:12pm |
When i use WINISD beta software for build a bass reflex used BEYMA 18G480.
the specs give me the following data: vol: 260l Square reflex hole 14cm x 14cm and 6,9 cm depht. Is this correct ? Any more suggestions or other better softw. Thanks a lot.
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Peter Jan
Young Croc Joined: 16 December 2008 Location: Belgium Status: Offline Points: 1019 |
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BR Internal volume (and port size) depends on the combination of speaker parameters and the tuning you like to use.
You probably let WinISD calculate some “standard” tuning ? That’s fine to get you a general idea about that particular combo, but you need to fiddle with cabsize and tuning frequency to suit your needs.
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Peter Jan
Young Croc Joined: 16 December 2008 Location: Belgium Status: Offline Points: 1019 |
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L-Acoustics SB218 used to have those 18G480 mounted, that gives you a general idea about size.
Those cabs were/are roughly 400 liters internal for two speakers. Some eq and filtering involved of course, but you see what soft like WinISD suggests is not the one and only way to go. It’s more like a start to figure out if a certain speaker is suitable for what you want it to do in terms of SPL, low-end extention, bandwidth etc. When suitability is established, than fiddling with cabsize, port(s) surface/length, power, ... starts. |
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