Yuav ua li cas yog lub impedance ntawm lub headphones

Impedance headphones - qhov no yog lawv tsis kam mus rau kev nkag. Nyob ntawm seb nws, muaj ntau cov kev ua hauj lwm zoo cov yam ntxwv ntawm lawv.

Yog hais tias qhov uas tsis muaj impedance ntawm lub headphones (25 ohms los yog tsawg dua), lawv yuav tsum tau tsawg zog los muab ib tug high-zoo suab. Cov headphones zoo suited siv rau cov pab kiag li lawm xws li music players, mobile xov tooj thiab lwm yam portable pab kiag li lawm.

Thiab yog hais tias tus headphones impedance yog 25 ohms ntau, lawv yuav tsum tau ntau zog mus rau ib tug siab tso zis theem. Qhov no kuj tiv thaiv lawv los ntawm tau kev puas tsuaj tshwm sim los ntawm overloads. Cov headphones yuav siv tau nrog ib tug ntau yam audiotehnicheskih pab kiag li lawm. Piv txwv li, cov no muaj xws li siv tau los DJ-branding qauv, nominal kuj uas yog hais txog 25-70 ohms.

Yog hais tias lub mloog pob ntseg impedance yog tsawg tsawg, lawv ua ntau susceptible mus rau kev puas tsuaj thaum siv ib lub high-power amplifiers. Yog hais tias koj, piv txwv li, txuas headphones nrog ib tug tsawg impedance mus rau lub dj-kev chaw thiab yuav siv nws rau nws cov tag nrho lub peev xwm, koj muaj lawv, tej zaum tawg.

Yog li ntawd, dab tsi yog qhov zoo impedance? Headphones yuav siv tau rau proslushavaniya suab neeg uas ua ntawv los yog ib tug portable laptop, yuav tsum tob muaj ib tug tsis kam ntawm txog 16-20 ohms thiab rhiab heev ntawm tsawg kawg yog 100 dB / mW. Yog hais tias koj ntaus ntawv raws li lub European qauv ntawm ntau volume, nws yog qhov zoo tshaj plaws xaiv headphones nrog ib tug impedance ntawm 16 ohms, vim tej no pab kiag li lawm ntau zog yog tseem tsawg tshaj li nyob rau hauv lwm tus.

Feem ntau, cov pom zoo nominal impedance headphones qhia nyob rau hauv cov ntaub ntawv rau tus ntaus ntawv.

Nws yog ib qho tseem ceeb coj mus rau hauv tus account lub impedance ntawm lub headphones, raws li tag nrho cov qauv muaj mus ua hauj lwm nrog ntau cov nqi ntawm cov hluav taws xob lub hwj chim thiab kuj. Txhua lub mloog pob ntseg qauv uas xam thiab kom ua tau raws li cov kev load volume. Qhov no tsis tsuas kom kev ruaj ntseg ntawm cov kev siv technology, tab sis kuj prolongs nws tiam vasthib.

Nyuam qhuav pib, nyob rau hauv 60-80 xyoo, feem ntau siv impedance headphones, txij li thaum lub zog zis ntaus ntawv uas lub sij hawm yog heev. Thaum pib siv resistors, tej lub qhov zis voltage. Nyob rau hauv 1996, nws tau muab tus qauv nyob rau hauv lub mloog pob ntseg impedance - 120 Ohm. Qhov no tau muaj ib tug tseem ceeb feem nyob rau ntau lawm thiab kev loj hlob ntawm cov qauv uas muaj impedance, tab sis nyob rau tib lub sij hawm mloog ntxiv txoj kev loj hlob nyob rau hauv lwm yam lus qhia. Nyob rau hauv 2009, lub loj heev kev muag khoom ntawm lub iPod, uas ua nyob rau hauv cov khoom uas tsis muaj kuj tau tau siab chaw. Yog li ntawd, txoj kev loj hlob ntawm headphones nrog ib tug tsawg dua impedance, tau txais ib tug tshiab impetus.

Yog li, lub impedance ntawm lub - ib qho ntawm lub, yog hais tias tsis tus tshaj plaws, tiam sis nws tseem tseem ceeb cov yam ntxwv ntawm cov headphones. Peb xaiv koj cov qauv yuav tsum ua raws li nrog lub suab khoom, koj siv, rau siab tshaj plaws suab zoo thiab xyuas kom meej ruaj khov lag luam. Yog li ntawd, koj yuav tsum xyuam xim rau thaum yuav ib lub mloog pob ntseg impedance thiab xaiv tsim nyog tshaj qauv los mus tiv thaiv sai coj thiab deterioration ntawm qhov zoo tshaj ntawm kev ua hauj lwm.