15" mids enclosure
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URL: https://forum.speakerplans.com/forum_posts.asp?TID=97788
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Topic: 15" mids enclosure
Posted By: RkH
Subject: 15" mids enclosure
Date Posted: 13 February 2017 at 12:09pm
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Hi, does anyone know any 15" enclosure for mids? The idea is to play from 180 to 1khz on that loudspeakers. I've an olds 15" and i want to do somethings with 'em. Any idea?
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Replies:
Posted By: cravings
Date Posted: 13 February 2017 at 12:43pm
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altec 816? or the similar eminence plan? |
Posted By: Mark James
Date Posted: 13 February 2017 at 2:39pm
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what 15s have you got? that would tell us what cab they work best in ------------- me so horny me love you long throw horn loaded for her pleasure |
Posted By: Dub Specialist Sound
Date Posted: 13 February 2017 at 7:55pm
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was gona say altec, or fane emmys, got some simlair desighns ------------- Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE... |
Posted By: RkH
Date Posted: 14 February 2017 at 4:30pm
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Hi, tnhx for de replies. I've 4 of them, but the only with the model its Beyma 15G300 250watts.
Will it fit? |
Posted By: bass*en*mass
Date Posted: 15 February 2017 at 1:57pm
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what do you need them for/intended application? might be a cheaper and easier solution to put them in small sealed cabs or bog standard reflex rather than large Horns. |
Posted By: RkH
Date Posted: 15 February 2017 at 11:22pm
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Hi, the principal and only aplication will be used as a "dub soundsystem" style. 2 scoops down, 2 folded horns on bass, and the cabinet that im looking for should work with the beyma in the range of ~180-1000hz. Upside them i will put the classics 2x12" angled. what do you think? can this beyma carry a good sound on that cabinet (supossing it only has 250w...)? I'm starting to think that won't be enough SPL on the midrange... |
Posted By: bass*en*mass
Date Posted: 16 February 2017 at 4:44pm
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212s should meet the "folded bass" easily around 160hz-1200, if not swap those 2 horns for 4 15" reflex.. scoops 40-80, 15s 80-200ish, 212s+dedicated hf up |
Posted By: bob4
Date Posted: 16 February 2017 at 5:29pm
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these beymas look good on paper, go up to 4 kHz and have around 100 dB sensitivity. If all four are the same model you could probably just build 4 x closed box and use them as kick/mid to go straight up to meet a hf horn at 1 kHz? a closed or ported box is simple enough to build. Maybe make one and test how it sounds, if it can deliver what you need -> less complex system. Worth a try maybe scoops + 15" BPH + 15" mid + 12" mid + hf - that's five way already, and you haven't even considered if you also want piezos or bullets over that, or one of those sexy two-way BMS drivers on top of that. Also 12" straight horns without phase plug (I assume they don't have) don't make sense for over 1 kHz look at king shilohs current sound for a random example (haven't heard it, no idea how good/bad), he has his weird scoops & 15" reflex kicks & top with direct radiating 10" + horn + bullets.
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Posted By: bob4
Date Posted: 16 February 2017 at 5:31pm
also please do tell us a little bit about yourself, if and what kind of experience you have building speakers / doing sound etc |
Posted By: RkH
Date Posted: 17 February 2017 at 2:59pm
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Hi, thanks for the replies, i really apreciate them. As I see you really putting a lot of interest i will deliver more information and photos. On top of the 12" should go a 2" compression driver.. the model is beyma CP600Ti, here is the specifications: RMS 60w @ 1khz 100w @ 2khz Sensitivity : 110 dB Lowest cross f.: 600hz The waveguide is totally unknown and i the only think i know its made by aluminium, no dispersion angle, nothing. I know something about physics of sound, acoustics and psychoacoustics, as i've been studying for 2 years, but they didn't pushed to hard in the "custom" builds... so here i am with what i think its a good base for learn. I'm asking for your opinions, i think it would go ok, drivers models: subs 2 18" pd18br40, lows 18" Beyma don't rememer de model, mids-high 12" probably some new eminence or fane. What do you think? |
Posted By: bob4
Date Posted: 17 February 2017 at 7:23pm
yeah that sounds more sensible! Although I thought the beymas are 15"?? it depends a lot on budget, what size of events etc. you mentioned dub as genre?
you haven't mentioned if you have any kind of amps, processing, mixer or reggae preamp, what kind of playback sources (vinyl/digi?). my personal opinion: Especially if you plan to build up your sound slowly/bit by bit, and your events are not very big, I would again suggest to start three way with 18" scoops + direct radiating (closed box or reflex) 15G300 kick/mid (~100 Hz - 1000 Hz) + Hf horn, to gain some experience in the whole process. Use what you have & start simple! You can later add some front loaded 12" horns like MT121 to cover 200 - 1000 Hz if you need more output. Regardless, you're going to have loads of fun!  |
RkH wrote:Posted By: RkH
Date Posted: 17 February 2017 at 8:17pm
Thank you for your response. We have 2 4-way analog crossovers, te amps are very old and there is not information about them "PROMASTER", but they work good, we've tested with old boxes and the drivers we're talking and sound really good. Total 2ampsx1200w+2x600w+1x300w at 8 ohm. total. |
Posted By: bob4
Date Posted: 20 February 2017 at 7:48pm
This would be another point in favor of three-way, you could run it with your present amplification :) If you want to use your analog crossovers for the system it would be preferable to have direct radiating (reflex or closed box) instead of various horns of different length. To clarify: 1. what model are your analog crossovers? 2.you already have the hi freq drivers+ horns? 3. you have 4 x beyma 15", but no enclosure yet? 4. 18" subs not built yet? 5. You want to make mono stack or also have the option to do stereo? |
Posted By: RkH
Date Posted: 22 February 2017 at 11:58am
Yes, in a time we will get the DSP so we can add delays and do a better control on phases. Finally we decided to go without the 15", and now: 1. They're the samson, as i said we will get a DSP in a time so we can control better de crossover freq. and add delays. Is it good idea to add a analog cross after de dsp? so we can do a total bypass faster than on the digital one.
2. Yes, look the other post. I sent a detail image from the 3D. 3. No, we had 2 full range boxes and inside them, only one is beyma, the others are not labeled so i think they're no beyma. 4. No, we we'll do a scoop with the current drivers and we will add the 1850 in a time. 5. I have an option for stereo, each cross is 4 way mono or 3 stereo, i can do a sound chain and go out with 5 stereo (mixing them) or 4 stereo (using them as mono). What configuration should fit better? And now my opinion, the samson analog have delay control in the first band, in son in 4 ways mono only i can affect the subs, but if i atack the input of the second with the output of the first highs, i can control delays on mids. Do you think this is tricky or just useless? The question is 4 or 5 ways? I never said i was gonna use 3, i have more amps and crossovers outputs and the needed equipment. |