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 Minta ukur sealed box

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Geeko
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PostSubject: Minta ukur sealed box   Minta ukur sealed box Icon_minitime12/10/2011, 1:49 pm

Sifu sekalian.

kalau kamu free..tlng aku lukis ukuran utk subwoofer aku ni..lukis pakai paint ka..apa2 la..tinggal aku print then tunjuk sma kedai..mcmana ukuran etc..aku endak paham 1 biji pun apa dlm manual tu..HAHAHA..mau bikin sealed punya..mau test 123..ngam ka x sma aku hehe..

Subwoofer mtx thunder 6000 10inch.

manual utk subwoofer ni : http://audio.manualsonline.com/manuals/mfg/mtx_audio/mtx_thunder_6000_t61044a_t61044a.html

terima kasih geng..

Smile

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finalazy84
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finalazy84

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime12/10/2011, 8:23 pm

dari tu manual, untuk sealed enclosure

size: 14.2L
f3: 49hz

size: 17.7L
f3: 46hz

size: 21.2L
f3: 43hz

f3: size: 24.8L
f3: 41hz

size: 28.3L
f3: 38hz

f3 ialah titik freq yg 3db kurang daripada reference freq. mksudnya, dbawah tu freq f3 akan turun dengan mndadak dn tdk kedengaran suda. contoh f3 = 43hz, freq d bawah 43hz akan turun dn tdk kuat suda. tapi yg kita tidak tau freq lepas tu 43hz macam mna pnghasilanya. mungkin akan jadi boomy atau lemas. tapi dari tu data sheet macam dia kasi highlight tu 43hz...klau sa jdi ko, sa ikut tu spec sja...hehe cara mau kira isipadu/volume guna ni site kira sndiri ikut kesesuaian ruang kreta masing2. yg penting isipadu dpt dekat2 dngan target isipadu

http://www.rockfordfosgate.com/rftech/box_wizard.asp
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kippo
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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime12/10/2011, 11:23 pm

bro Geeko,
apa jenis musik ko dingar?

apa jenis bass ko mo?

karas?

lembut?

berapa ruang ko sanggup bagi sama tu kutak subwoofer?

berapa kuasa amp ko?

semua ni akan menentu kan sizing box sub woofer ko.
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Geeko
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Geeko

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 8:37 am

@Finalazy thx bro.mau ukur dlu la kereta tu kan.baru senang..

@bro kippo,music ikut mood..metal..rnb..slowjam..

aku pun x pasti karas ka lembut..x mau lebih x mau kurang..kira mau ikut sebiji macam music tu produce..x mau boost2..hehehe..bleh ka tu?

ruang la amat penting..now pun pakai 2 biji..1 mau jual kali..pakai 1 ja..

tq for ur time!
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finalazy84
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finalazy84

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 10:42 am

klau ko dpt target 1cu ft rsanya lagi bagus sbab itu Qtc paling rendah .95 myb itu freq curve ada sedikit rata.
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Geeko
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Geeko

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Age : 64
location : kk
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Number of posts : 139

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 12:17 pm

mdf board guna brapa besar bro?

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kippo
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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 2:14 pm

bro Geeko,
musik yg ko mo dingar tu perlu midbass power.

karas ka lembut tu kana pasti sebab box design nda cover dua2.

jadi berapa space n power ko ada?

kalau saya kasi ko box besar, teda space pla ko nanti.
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kippo
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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 2:19 pm

finalazy84 wrote:
klau ko dpt target 1cu ft rsanya lagi bagus sbab itu Qtc paling rendah .95 myb itu freq curve ada sedikit rata.

bro,
Qtc 0.95 ni kira keras betul ni.

ko akan dapat peaky response d upper range of the sub-bass.

1 cu.ft box ni kira kici & akan perlu amp power yg kuat.
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finalazy84
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finalazy84

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 2:36 pm

itu berdasarkan manual dia kippo...hehe klau mau target Qtc 0.707, mau 3.6cu.ft tu...besar tu untuk myvi.
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Geeko
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Geeko

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 2:58 pm

x mau la terlampau besar..

separuh dari bonnet ok la kali..

aku ukur dlu total size bonnet tu..

poweramp biasa2 ja punya...............................................................................................

http://www.lelong.com.my/bumper-u-s-bpm-604-60w-rms-x-4-channel-amplifier-u-s-77084047-2011-02-Sale-P.htm
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finalazy84
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finalazy84

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Number of posts : 3863

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 5:02 pm

ko kn guna tu amp sementara sja...nanti ko beli amp untuk tu sub ok suda tu.Qtc 0.707 slalu untuk yg seimbang la bunyinya...teda peak d mana2...tpi untuk sub ko kena la besar smpai 3.6 cu.ft untuk dpt macam tu punya response.tdk pun buli juga ko sumbat bnyak2 tu polly fill.kapas2 putih dlm bantal tu.
rsanya ko akan tukar juga tu pegi sub yg besar sikit nanti...tpi smntara ni pkai ja pa yg ada ba.
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kippo
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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 10:42 pm

finalazy84 wrote:
itu berdasarkan manual dia kippo...hehe klau mau target Qtc 0.707, mau 3.6cu.ft tu...besar tu untuk myvi.

Qtc 0.707 ni bukan juga ideal pasal ni theoretical flat response in anechoic chamber.
Dalam korita, cabin gain berubah dari korita lain ke yg lain. Ko simpan Qtc 0.707 pun ko nda akan dapat flat response.

sebab tu saya main port kasi main bass response. Jadi saya main port tuning ikut apa musik dia suka.

saya tanya si geeko pasal amp power dia sebab saya mao kasi max. spl pakai efficiency.
ini masalah sealed box, nda efficient tapi bass response nda berapa peaky.
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kippo
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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 10:52 pm

Geeko wrote:
x mau la terlampau besar..

separuh dari bonnet ok la kali..

aku ukur dlu total size bonnet tu..

poweramp biasa2 ja punya...............................................................................................

http://www.lelong.com.my/bumper-u-s-bpm-604-60w-rms-x-4-channel-amplifier-u-s-77084047-2011-02-Sale-P.htm

kalau korita ko myvi, paling2 ko dapat 1~1.5 cu.ft saja tu.

sebab ko banyak suka rock, ngam juga la ko pakai box kici sebab bass ko akan keras & ngam untuk lagu2 rock ni
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finalazy84
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finalazy84

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime13/10/2011, 11:26 pm

yalo...dlm kreta ada bnyak variable yg mnggnggu...tdk macam hifi d ruma.tpi wlau macam mna pn, at least itu yg paling terbaik daripada ada point yg kena boost kn.

rsanya si geeko mau yg d tngah2 ba ni.tdk keras, tdk lmbut...

jadi macam?keputusan?
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Geeko
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Geeko

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime14/10/2011, 12:15 am

nah jadi amcm la ni...HAHAHA..

ukur2 td..

inch
H : 16 (ruang sebanar 17inch,so 16 to be save la kunun karang x muat)
W : 16(ruang sebenar 36inch)
D : 16(ruang sebanar 17)
Minta ukur sealed box Box_wedge_out_off


x jg 24 hours metal..rnb pun wajib..slowjam..

p lunch = slowjam..balik kerja = metal..pgi kerja = rnb hehe

hahahaha.lol

tq for ur time la sifu2..
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finalazy84
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finalazy84

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime14/10/2011, 11:09 am

tdk tlmpau dekat ka tu sub dgn pintu boot ko? D2 lgi ko lupa...

ada ko tnya psal ketebalan kayu kn ari tu...rsanya dlm 1/2 tau 5/8" buli suda tu.

klau kayu 5/8" untuk ukuran tu, D2 kasi 10" buli dpt 1.48cu.ft ok suda ba tu
Qtc: 0.84 Fc: 43Hz F3:37Hz

sa rsa ni saiz ngam suda untuk kreta ko
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Geeko
JUNIOR
JUNIOR
Geeko

Male
Countries/State : Sabah
Age : 64
location : kk
Points : 9631
Reputation : 1
Number of posts : 139

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime14/10/2011, 1:52 pm

kalau kita set D2 10"... x la sdah dekat..tp kena jenis Wedge la..

Cuba kamu try ngam ka x setting ni.

Wedge
Unit Measure : inch & Cubit ft
Wood of thinkness : 1/2 mdf

Outside Gross
H : 15
W: 15
D2 : 10
D1 : 16

Result : 1.36 Cubic Feet


amcm?
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finalazy84
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finalazy84

Male
Countries/State : Sabah
Age : 39
location : Keningau - KK
Tag ID: : SFC 04901
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Reputation : 41
Number of posts : 3863

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime15/10/2011, 7:45 am

ada kecil sikit dari yg sblum ini.Qtc ada besar sikit tu.tapi macam si kippo ckp...tu soma teori sja.hehe tmpat sya mena hantam sja box tu.ok juga pun.
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Geeko
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Geeko

Male
Countries/State : Sabah
Age : 64
location : kk
Points : 9631
Reputation : 1
Number of posts : 139

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime17/10/2011, 8:23 am

puspun dlu box ni..sdah let go woofer aku hahaha.tunggu wuufffper baru masuk..

nwy to be continue~

thx bro kippo n final~!!
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finalazy84
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finalazy84

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Age : 39
location : Keningau - KK
Tag ID: : SFC 04901
Points : 14932
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Number of posts : 3863

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PostSubject: Re: Minta ukur sealed box   Minta ukur sealed box Icon_minitime17/10/2011, 2:54 pm

bah 15 inch la...baru rasa tu lower extntion...hehe
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