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Help Sub woofers

Kaya nung gumawa ako sound system, yung sub bumili nlng ako ng self powered na sub. Dadaan lang sakanya ung signal, fifilter nya ung frequency, saka nya ibabato sa front speaker ung signal. Bale ung front speaker lang kakain ng power. So ung specs lng nung speaker ang inaalala ko.

Actuator speaker gamit ko para sa front. Naka dikit lang sya sa honeycomb cardboard. Flat pane

baka pde makita yang linyahan mo ang gamit ko ngayon is 4 na bookshelf galing sa component pioneer at phillips tapos mt502 na amp 50w x2 halos similar jan sa vid mo

@wallcolmx
Yun heat ang nakasira sa unit m
i doubt heat dumali dito playing it for a whole day using a switching power supply 12v at 10a simula nung nabuo ko sya ay lagi ko hinahawakan yung amp kung mainit dahil nasa harap yung box stand sya ng monitor ko at lagi ko inaaadjust yung knobs para laruin sabi nung sa DIY group na biasing daw yung amp or over volt not sure why i guess ganun tlaga pag chinese product madali masira

07/14/2022 12:21 - nagamit yung amp nadeliver tapos nasira ko lang nung pinalitan ko ng 24v 10a n supply

eto specs n gamit ko dun sa 2 channel tapos tweeter na 20ws naka konek jan sa dividing netowrk
duda ko etong sub ang sira nag try ko ilagay dividing network nag init di ko pa ma test ng maayos wala ako amp na may sub
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baka pde makita yang linyahan mo ang gamit ko ngayon is 4 na bookshelf galing sa component pioneer at phillips tapos mt502 na amp 50w x2 halos similar jan sa vid mo
Tig isa palang ang actuator speaker ko, kaya wala pang komplikado na linyahan. Pwede kita turuan kung pano mag compute ng total ohm para pasok ka padin sa ohm rating ng amp mo.
 
^ any amp ba pde ko gamitin jan total filtered naman ang frequency?

tapos etong amp gagamitin ko naka rekta
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ahhh asan source jan boss?

eto amp ko boss View attachment 2633127
Hindi ko sinama sa drawing ung power source. Pero teka baka mali pala ako. Hindi ko makita ung in and out sa picture nung preamp... saka kung alin ung intended pumunta sa subwoofer vs sa speaker. Hindi ko sure kung passthrough nga yan. Pero dahil may sarili power hindi yan kakain galing sa amp for sure.

Possible din pla kasi na ganito intended kung walang speaker out.
Notes_230430_053115.jpg

Ung power nmn, dapat may sarili syang power supply. Hindi k mag tap sa same ps ng ampli mo.. pero kung confident ka sa lakas ng ps supply mo.. gagamit ka siguro nito.
Screenshot_20230430_053917_Google.jpg
Tpos magkakabit ka nito sa preamp mo na i wire mo ppunta sa dc in ng preamp.
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iyan ang di ko gets paps wala pre amp tong gamit ko balak ko nga sana bumuo ng amp using a preamp then a 2channel for left and right na naka 3 way dividing network per channel then iyang sub out may sub out amp
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iyan ang di ko gets paps wala pre amp tong gamit ko balak ko nga sana bumuo ng amp using a preamp then a 2channel for left and right na naka 3 way dividing network per channel then iyang sub out may sub out amp View attachment 2633302
Ah I see. Gusto mo parehas sub at main speaker mang-galing sa isang unit lang.

Kung ako ganito ko i wire yan. Gagamit ako ng bus bar:
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Yan ung dc power na connection kung single power supply lang.
 

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wallcolmx
Mas intense yun heat sa higher voltage.
They even recommend 16v
and 18-21v only if we're using fan.

My personal experience on my MT21:
in just a minute, 19v 4.32a with all knobs not exceeding half volume with 4.7inch subwoofer only and 25wbookshelves, my temps rose as high as 40 to 50 degrees celsius real quick!. That's how serious the thermal problem is.

Regarding Biasing,
I think it's about management of currents based on voltage recognized. This is why sufficient wattage of powersupply is recommended to avoid drastic voltage drops that may mess up the biasing.

summary:
24v is bad for zk-mt21 due to extreme temps
maybe those who says they used 24v lives on cold climates and has cooling mods.

(I know you already decided on having modular setup which is a really smart decision, I'm only sharing these just in case you decide to get a new one (for convenience) and for other readers too.)

btw, your name is roque on fb?
I commented on your post, not sure if you saw it already.
It's about high to low converter for your new setup.
502mt + 2channels
and separate active sub.
 
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Mga lods ano bang kailangan para mka buo Ng bluethoot speaker may subwoofer na Kasi Ako ano paba Ang kulang
 

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