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Multi-Way Conventional loudspeakers with crossovers

Which 2.1 drivers for a 10kg boombox (24v)?
Which 2.1 drivers for a 10kg boombox (24v)?
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Old 14th March 2018, 06:35 PM   #1
Justbe is offline Justbe  Finland
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Default Which 2.1 drivers for a 10kg boombox (24v)?

I'm making a 2.1 boombox with 2 efficient full range drivers and a 6-8" efficient subwoofer which works in a relatively small 10-15 litre reflex enclosure. I'd like to tune it somewhere around 50-60hz. I already have ordered a 2.1 D-class amp based on TPA3116 and I'm going to power it with a 10000mAh 6S Li-Po (22,2V). These are the drivers I'm thinking of getting atm:

- 2x FaitalPRO 4FE32 4" neodymium drivers 91 db (with a highpassfilter) https://www.parts-express.com/pedocs...ifications.pdf
- Dayton Audio SD215A-88 8" subwoofer, which should work in a small enclosure and is very efficient? Dayton Audio SD215A-88 8" DVC Subwoofer

Or do you think that 2x Tangband W5-1611SAF (or W5-2143) full range drivers would fit even better Tang Band W5-1611SAF 5" Full Range Speaker

PS. Last project of mine (2012) had an 18sound neodymium bass (8NMB420) and an 18sound tweeter (HD125) with a miniDSP, but it got stolen in 2016.
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Last edited by Justbe; 15th March 2018 at 09:08 AM.
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Old 15th March 2018, 11:03 AM   #2
TBTL is offline TBTL  Germany
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That one looks good, too bad it got stolen.

You might want to aim for wide dispersion, as people can move around the speaker. 4" full range drivers are too beam to provide wide dispersion at high frequencies. Subwoofer and 'sats' in the same box means you can raise the crossover frequency (to 300-500 Hz?), in order to relieve the full range drivers, so small drivers will still survive.

Last edited by TBTL; 15th March 2018 at 11:09 AM.
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Old 15th March 2018, 01:49 PM   #3
Lojzek is offline Lojzek  Croatia
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Maybe the time has come for someone else to bring the boombox to a party, since yours changed owner.
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Old 15th March 2018, 02:09 PM   #4
Justbe is offline Justbe  Finland
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Quote:
Originally Posted by TBTL View Post
That one looks good, too bad it got stolen.
You might want to aim for wide dispersion, as people can move around the speaker. 4" full range drivers are too beam to provide wide dispersion at high frequencies. Subwoofer and 'sats' in the same box means you can raise the crossover frequency (to 300-500 Hz?), in order to relieve the full range drivers, so small drivers will still survive.
Thanks for the reply! The Dayton Audio subwoofer looks to have a very nice stable frequency curve all the way to 500 Hz, so I would only need the sats around 300 Hz upwards. So what kind of sats should I be looking for and how should I execute the ~300 Hz highpass? The amplifier board has a "frequency adjuster"/lowpass for the bass from 80-500hz but I doubt the quality for 20 bucks...
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Old 15th March 2018, 03:56 PM   #5
manninen is offline manninen  Finland
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Cheapest and most annoying midsummerparty speaker is used behringer passive eurolive.
Just add electronics, 15" and 1.X" cd gets you in trouble
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Old 15th March 2018, 04:07 PM   #6
Justbe is offline Justbe  Finland
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Well Manninen, DIY is the point here and at least 50 % of the fun...

What do you think about the Dayton Audio sub fitting this project? It will have an own compartment with a reflex port. I'd like to order the drivers asap..
Would 2x Visaton BG13P 5" be better than the 4" FaitalPROs or 5" Tangbands in as small as possible sealed enclosure? Visaton BG13P 5"
What I really like about the FaitalPROs is that they are very light weight.

Last edited by Justbe; 15th March 2018 at 04:19 PM.
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Old 15th March 2018, 04:27 PM   #7
manninen is offline manninen  Finland
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Muusikoiden.net - Tori - BMS 12CN680 Neodymium Coaxial 12" (#1305076)

try to get that cheap

well, seems like you dont need much output? rather decent low end.

Put that on max and everybody in koffpark is annoyed
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Old 15th March 2018, 06:30 PM   #8
Justbe is offline Justbe  Finland
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I've got the 2.1 amp already and am really eager to try a full range + sub setup. That driver is really heavy (not so portable) and the highs seem to be much louder than the bass/mids...
Still waiting for an opinion regarding earlier mentioned full range drivers...
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Old 15th March 2018, 07:59 PM   #9
manninen is offline manninen  Finland
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Sure those small faitals are great drivers, even aura audio uses those on their speakers
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Old 16th March 2018, 06:36 AM   #10
Justbe is offline Justbe  Finland
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Good to hear manninen! Actually first I thought of using Aura NS6 for a sub/mid but apparently the amp’s sub channel reaches only up till 500 hz, so it would cut a lot of Aura’s best range.

I guess it’s better to highpass the full rangers a bit lower than 500 hz to have some room to play.
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