Yog tias koj tab tom ntsuas tus neeg hais lus tsav tsheb rau lub portable projector, mini smart speaker, lossis compact Bluetooth unit, phau ntawv qhia no yog rau koj. Kho tshiab kawg: 2026-07-28.
Koj unbox ib lub hom phiaj - projector portable tshiab, tua ib tug yeeb yam, thiab cov kev sib tham suab muffled txawm nyob rau hauv lub siab tshaj plaws ntim. Lub amplifier zoo. Kev sib txuas ntawm Bluetooth yog qhov zoo. Yog li ntawd yog vim li cas lub suab zoo li nws yog los ntawm sab hauv lub tin tau?
Ntau zaus tshaj tsis, qhov teeb meem taug qab mus rau ib qho kev tiv thaiv: tus neeg hais lus tsav tsheb. Xaiv qhov tsis ncaj ncees lawm Φ21-30mm multimedia tsav tsheb yog txoj hauv kev ceev tshaj plaws los ua kom tsis zoo rau lwm yam khoom siv portable portable. Phau ntawv qhia no taug kev los ntawm peb qhov kev xaiv ntau tshaj plaws, qhov kev siv tsis raug teeb tsa, thiab cov lus nug uas tuaj yeem tshwm sim feem ntau thaum ua haujlwm ntawm cov khoom siv suab.
Vim li cas Portable Projector Audio Ua Tsis Tau
Portable projectors nyob hauv ib puag ncig nyuaj acoustic. Lub chassis feem ntau yog thinner dua 35 hli, lub nraub qaum kab noj hniav muaj rau tus neeg tsav tsheb feem ntau qis dua 5 cm³, thiab cov khoom lag luam nws tus kheej tau txais txiaj ntsig zoo tshaj qhov kev ncaj ncees. Raws li XDEC qhov kev tshuaj xyuas ntawm cov neeg siv khoom tawm tswv yim thoob plaws 30+ lub teb chaws, lub suab zoo nyob rau ntawm peb qhov laj thawj saum toj kawg nkaus rau qhov projector portable rov qab - ua ntej ntawm cov chaw taws teeb tswj tsis txaus siab thiab sib npaug nrog roj teeb lub neej.
Peb cov qauv tsim ua rau lub suab tsim tshwj xeeb tshaj yog nyob rau hauv pawg no:
Txwv rov qab- kab noj hniav- Lub chassis thinner txhais tau hais tias ib qho me me kaw los yog ported enclosure, uas ncaj qha txwv qis -frequency extension.
Kev txwv nyiaj txiag muaj zog- Feem ntau portable projectors khiav ntawm ib zaug xwb - roj teeb lithium ntawm tes, yog li lub amplifier muab 2-3 W rau ib channel qhov zoo tshaj plaws. Tus neeg tsav tsheb yuav tsum ua kom muaj txiaj ntsig txaus los tsim SPL siv tau ntawm qib zog ntawd.
Qhov sib thooj rau lwm yam khoom- LED lub teeb cav, tsom motors, thiab Wi-Fi modules tag nrho tsim EMI. Tus neeg tsav tsheb yuav tsum tau electromagnetically huv si thiab mechanically cais tawm ntawm kev co -sensitive qhov chaw.
Tau tus tsav tsheb tsis raug ntawm ib qho ntawm qhov loj me no, thiab tag nrho cov kev paub ntawm lub suab poob qis - txawm tias lub amplifier, DSP, thiab tuning tag nrho saum toj kawg nkaus -tier.
3 Kev xaiv Pitfalls rau Φ21-30mm Multimedia Tsav Tsheb
Pitfall 1: Kho "76 dB Sensitivity" raws li ib qho -Channel teeb meem
Ib qho kev xav ntau yog tias yog tias txhua tus neeg tsav tsheb ua tau raws li 76 dB rhiab heev spec, ib khub stereo yuav zoo. lej yuam kev.
76 dB yog ib yam Y- hom multimedia tsav tsheb rhiab heev, thiab ± 3 dB ib feem- rau- ib feem kam rau ua yog zoo nyob rau hauv lub official spec. Tab sis yog tias sab laug channel tsaws ntawm +3 dB thiab txoj cai channel tsaws ntawm -3 dB, qhov tshwm sim yog 6 dB tsis txaus - thiab tib neeg pob ntseg tuaj yeem pom meej txawm tias 1 dB lub tso suab tsis txaus. Qhov no yog vim li cas "txhua tus neeg hais lus tau kuaj pom zoo" cov lus tsis txaus siab tshwm sim hauv thaj teb dua thiab dua.
Yuav zam tau li cas:Qhia meej txog ± 1 dB kev sib koom ua ke kam rau hauv daim ntawv cog lus, tsis yog lub neej ntawd ± 3 dB spec. Tus neeg muag khoom tsav tsheb yuav tsum tau muab qhab nia sib tw ua khub los ntawm tib qhov ntau lawm thiab sau npe nrog tus lej xov tooj. Shenzhen Xuanda Electronics (XDEC) tau muab kev sib koom ua ke - sib tw Φ30mm tsav tsheb rau cov projector portable projector qhov twg qhov kev xav tau no tsis yog - sib tham.
Pitfall 2: Sib piv tus tsav tsheb 4Ω rau 8Ω-Tsuas yog Amplifier
Ntau yam tsawg- zog D-chav amplifier modules raug ntsuas rau 8Ω loads. Txuas tus tsav tsheb 4Ω rau hauv 8Ω- tsuas yog amp ua ob npaug ntawm qhov kos tam sim no, tsav cov theem tso tawm mus rau hauv kev ntxhov siab thermal, thiab ua kom hnov ntxhiab ntawm cov ntim nruab nrab. Lub tshuab hluav taws xob tiv thaiv Circuit Court kuj tseem tuaj yeem kaw ib nrab ntawm -movie.
Yuav zam tau li cas:Paub meej tias lub amplifier qhov tsawg kawg nkaus txhawb nqa ua ntej qhia tus tsav tsheb. Yog tias lub amp yog 8Ω nkaus xwb, xaiv 4Ω + kauj ruam- nce transformer, lossis xaiv qhov dav -impedance amplifier ntsuas rau 4-16Ω loads. Feem ntau cov niaj hnub portable projector amplifiers yog 4Ω{10}} sib xws, tab sis kev txheeb xyuas qhov ua ntej no tiv thaiv hom thermal-shutdown rov qab los ntawm qhov chaw rau lub hlis tom qab tso tawm.
Pitfall 3: Kev kwv yees qis qis -Ntau zaus txuas ntxiv los ntawm Φ30mm Tsav Tsheb Ib leeg
Ntau pawg neeg muab khoom thov kom "zoo ntses bass thaj tsam" los ntawm tus tsav tsheb Φ30mm ntawm nws tus kheej. Cov lus teb ncaj ncees yog qhov liab qab Φ30mm Y- hom tsav tsheb muaj lub suab nrov zaus (F0) nyob ib puag ncig 200-220 Hz, uas txhais tau hais tias tus tsav tsheb nws tus kheej tsis tsim cov khoom muaj txiaj ntsig hauv qab 150 Hz. Qhov "bass" txuas ntxiv mus rau 80-100 Hz uas cov neeg siv khoom xav tau los ntawm lub portable projector los ntawm lub thawv - tsis yog tus tsav tsheb ib leeg.
Lub kaw lus kaw rov qab ntxiv kwv yees li 30-50% rau qhov ua tau zoo tsawg- zaus ncav cuag. Qhov chaw nres nkoj bass-reflex tau raug kho kom zoo tuaj yeem thawb cov lus teb tuaj yeem mus rau 80 Hz. Yog tsis muaj qhov thaiv, tsis muaj tus nqi ntawm kev tsav tsheb engineering yuav ua rau qhov qis kawg uas tus neeg siv khoom xav tau.
Yuav zam tau li cas:Kho tus neeg tsav tsheb thiab lub kaw lus ua ib qho acoustic system. Qhia meej F0 thiab lub hom phiaj ntim ntim ua ke. XDEC pawg neeg ua haujlwm niaj hnub tshuaj xyuas cov neeg siv khoom kos duab kos duab nrog rau kev xaiv tsav tsheb kom paub tseeb tias ob feem ntawm lub kaw lus tau hloov mus rau ib leeg.
Daim Ntawv Pov Thawj: Φ30mm Multimedia Tsav Tsheb rau Portable Projectors
Cov lus hauv qab no yog ib qho kev teeb tsa raug rau Φ30mm Y- hom multimedia tsav tsheb siv nyob rau hauv nruab nrab - ntim portable projector tej yaam num. Tus nqi yog qhov tseeb engineering ranges, tsis yog kev lag luam thov.
| Parameter | Tus nqi | Engineering Note |
|---|---|---|
| Tsav txoj kab uas hla | Φ30 hli | Txheem rau chassis thinner dua 35 mm |
| Impedance | 4Ω | Sib phim niaj hnub D-chav amplifier tso zis; xyuas amp txhawb 4Ω load |
| Rated zog | 2-3 W | Haum rau compact kaw los yog ported enclosures |
| rhiab heev | 82 ± 2 dB (1 W / 1 m) | Thov ± 1 dB khub rau lub tso suab tsim |
| Resonant zaus (F0) | 200-220 Hz | Enclosure design txiav txim siab usable low -frequency extension |
| Teb zaus | F0-20 kHz | Tag nrho - ntau yam, haum rau kev sib tham thiab suab paj nruag |
| Ua haujlwm kub | -20℃rau +70 degree | Npog feem ntau ntawm cov neeg siv khoom siv |
| Diaphragm khoom | Daim ntawv / mylar composite | Sib npaug ntawm tus nqi, rhiab heev, thiab humidity kuj |
Cov ntaub ntawv qhov chaw: XDEC engineering reference database, 2026 Q2 hloov tshiab.
Qhov twg Φ21-30mm Y-Type Drivers haum
Thaum portable projectors yog qhov tseem ceeb ntawm phau ntawv qhia no, Φ21-30mm Y-hom tsav tsheb npog ntau ntau ntawm cov khoom siv suab. Nov yog plaub lwm hom ntawv thov uas tib qhov teeb meem siv tau:
Mini Bluetooth hais lus- Cylindrical los yog puck-zoo li tus hais lus portable nyob rau hauv 60 mm siab feem ntau siv ib los yog ob tug Φ28-30mm tsav tsheb nyob rau hauv ib tug passive-radiator los yog kaw configuration.
Ntse hais lus mini- Nkag mus-tier lub suab- cov cuab yeej pabcuam siv Φ25-30mm tsav tsheb ua ke nrog cov ntaub thaiv me me, qhov siab rhiab heev (84 dB+) yog qhov tseem ceeb tshaj qhov tsawg zaus ncav cuag.
Desktop hais lus (compact)- Ib leeg- tsav USB- lub zog hais lus desktop rau kev siv chaw ua haujlwm. Cov hneev taw me me nyiam Φ30mm tsav tsheb nrog 4Ω impedance kom phim me me amplifier modules.
Kev kawm projectors thiab cov menyuam kawm ntawv cov cuab yeej- Cov kev txwv loj zoo sib xws rau cov khoom siv nqa tau yooj yim, feem ntau nrog cov kev cai nruj dua IEC/EN71 rau cov khoom kawg.
Thoob plaws hauv cov ntawv thov no, XDEC tau xa ntau dua 450,000 Φ21-30mm multimedia tsav tsheb hauv ob xyoos dhau los, nrog rau feem ntau mus rau portable projector thiab mini Bluetooth hais lus cov neeg siv khoom hauv Asia-Pacific thiab Europe.
FAQ: Portable Projector Speaker Sourcing Questions
1. Puas yog tus tsav tsheb projector portable xav tau nws tus kheej enclosure tsim?
Yog lawm. Tus neeg tsav tsheb nws tus kheej tsuas yog ib nrab ntawm cov acoustic system. Tus neeg tsav tsheb liab qab tsis tsim cov khoom siv tsawg - zaus tso zis. Lub kaw lus (sau, ported, lossis passive-radiator) txiav txim siab seb qhov system tuaj yeem ncav cuag li cas. Xa koj daim duab enclosure rau tus neeg tsav tsheb thaum lub sijhawm ua piv txwv, tsis yog tom qab cov cuab yeej raug kaw.
2. Vim li cas feem ntau cov tsav tsheb projector siv 4Ω tsis yog 8Ω?
Tsawg impedance ua rau SPL siab dua rau tib lub zog nkag, uas yog qhov tseem ceeb thaum lub tshuab hluav taws xob txwv rau 2-3 W ib channel los ntawm cov peev nyiaj roj teeb . 4Ω yog qhov kev xaiv tus qauv rau compact, roj teeb -powered audio. Kev lag luam tawm - tawm yog tias lub amplifier yuav tsum tau ntsuas rau 4Ω loads - saib Pitfall 2 saum toj no.
3. Dab tsi yog qhov tsawg tshaj plaws - zaus ntawm Φ30mm tsav tsheb?
Tus neeg tsav tsheb liab qab ncav cuag li F0, nyob ib ncig ntawm 200-220 Hz. Nrog lub kaw lus tsim kom zoo, cov lus teb siv tau feem ntau txuas mus rau 130-150 Hz. Nrog rau qhov chaw nres nkoj bass-reflex, cov lus teb tuaj yeem ncav cuag 80-100 Hz. Cov neeg siv khoom xav tau "ntse ntses bass thaj tsam" los ntawm lub projector portable yuav tsum teem caij cia siab ib ncig ntawm 100 Hz, tsis yog 40 Hz.
4. Koj yuav ua li cas kom tsis txhob muaj lub tso suab tsis sib npaug hauv dual- tsav tsheb projector tsim?
Qhia meej ± 1 dB kev sib koom ua ke kam rau hauv daim ntawv cog lus muab khoom. Kom tus neeg muag khoom sau npe rau txhua tus neeg tsav tsheb nrog tus lej xov tooj thiab lub nkoj sib tw ua khub ua ke. Khiav ib qho IQC sampling xeem ntawm tsawg kawg yog 5 khub ntawm ib qho khoom xa tuaj los txheeb xyuas kev sib faib ua khub. Lub neej ntawd ± 3 dB kam rau ua uas los nrog cov ntaub ntawv tsav tsheb feem ntau tsis nruj txaus rau cov khoom lag luam tso suab.
5. Cov ntawv pov thawj dab tsi yuav tsum muaj tus tsav tsheb lub projector tau ntsib?
Rau cov neeg siv khoom siv portable feem ntau, tus neeg tsav tsheb nws tus kheej tsis xav tau daim ntawv pov thawj kev nyab xeeb tshwj xeeb - tab sis cov khoom kawg yuav. Tus neeg tsav tsheb yuav tsum txhawb nqa kev ua raws li cov khoom kawg lub hom phiaj: CE-EMC, FCC Tshooj 15, RCM rau Australia, KC rau Kaus Lim Kauslim, thiab lwm yam. XDEC cov tsav tsheb yog tsim nyob rau hauv ISO 9001: 2015 thiab IATF 16949 cov txheej txheem zoo, thiab cov khoom ua raws (RoHS, REACH) tau sau tseg rau txhua qhov khoom xa tuaj.
6. Dab tsi yog MOQ, lub sij hawm ua tus coj, thiab qauv txoj cai?
Rau ib tug Φ30mm tus qauv configuration, sim ntau lawm pib ntawm 500 units, txheem ntau lawm ntawm 3,000 units, thiab customized specifications (hloov F0, txhuas ntev, vaj tse) ntawm 10,000 units. Standard- teeb tsa tsav tsheb los ntawm Tshuag hauv 3-5 hnub ua haujlwm; cov qauv feem ntau tuaj txog hauv 7 hnub. Cov kev cai tshwj xeeb xav tau 15-20 hnub rau kev kuaj thiab 30+ hnub rau ntau lawm. Cov lus pom zoo xaiv cov neeg hais lus raug xa rov qab tsis pub dhau 24 teev, thiab cov ntaub ntawv tshuaj xyuas hauv 48 teev.
Hais txog XDEC
Shenzhen Xuanda Electronics Co., Ltd. (XDEC) tau tsim nyob rau xyoo 2009 thiab tau siv sijhawm 17 xyoo tsom rau cov khoom siv hluav taws xob electroacoustic - hais lus tsav tsheb, receivers, thiab microphones. Lub tuam txhab tuav ISO 9001: 2015, ISO 14001: 2015, IATF 16949, thiab TUV ntawv pov thawj, thiab tau lees paub tias yog Shenzhen High-Tech Enterprise. XDEC xa mus rau ntau dua 30 lub teb chaws, nrog cov neeg siv khoom thoob plaws cov neeg siv khoom siv hluav taws xob, lub suab tsheb, suab nrov, thiab cov cuab yeej kho mob. Lub zeem muag yog los ua lub ntiaj teb-chaw tsim khoom nrov nrov; lub hom phiaj yog los pab cov neeg siv khoom xa suab zoo rau txhua lub ces kaum ntawm lub ntiaj teb.
Tau txais Daim Ntawv Pom Zoo Muag Khoom
Yog tias koj tab tom ntsuas tus Φ21-30mm multimedia tsav tsheb rau lub portable projector, mini smart speaker, los yog compact Bluetooth khoom, XDEC tuaj yeem xa rov qab cov lus xaiv xaiv lus hauv 24 teev thiab cov ntaub ntawv tshuaj xyuas hauv 48 teev.
Hu rau: Manager Yuan
Xov tooj: +86 135 2888 3307
Email: xd12@xdec.cn
Lub Vev Xaib: www.xdecspeakerdriver.com
Kab lus no yog tswj hwm los ntawm XDEC engineering team. Kho tshiab: 2026-07-28.