Active hais lus - lawv keeb kwm thiab uas

Lub thiaj li hu ua "kev tsov kev rog ntawm lub suab zoo" tau pib txij thaum ntawd los, noob neej tau tsim ib lub hais lus thiab ib tug hais lus, thiab yog tseem mus tsis tu ncua. Cov kev sib tw yog tshaj thiab qhov zoo tshaj plaws lub suab zoo thiab ntau haib volume. Nyob rau hauv cov ntaub ntawv no, lub siab tshaj plaws kev sib tw yuav pom cov manufacturers thiab distributors zvukovosproizvoditelnyh systems nyob rau hauv tus qauv ntawm lub amplifiers. Qhov no thiaj li hu ua active tham.

Cov systems yog cov feem ntau. Lawv daim ntawv thov yuav tsum pom qhov txhia chaw - los ntawm kev hais lus rau studio saib, los ntawm headphones mus hais lus ntawm tsev PC. Active hais lus system tuaj mus rau ib tug tej yam raws li hloov lawv passive counterparts, uas yuav tsum tau ib daim amplifier. Siv lub built-in amplifier yog ib lub tshuaj. Nws yog qhov no feature thiab coj amplified hais lus rau hauv cov hmoov txhuas. Tsawg teeb meem nrog switching suab pab kiag li lawm, tsawg thaiv thiab cuam - tag nrho cov no undoubted zoo ntawm no invention.

Nyob rau hauv ib tug ntaus ntawv xws li ib tug active hais lus system, ib tug amplifier nyob rau hauv ib shielded enclosure. Qhov no paub licas hais hauv lub qhaj ntawv ntawm spare nyob ntawm tej thiab nyob, ntau yooj yim suab haum. Tag nrho cov zoo qualities positioned tam sim ntawd rau nws musicians thiab suab paj nruag lovers, uas yog tau mus ntsuam xyuas qhov zoo thiab usability ntawm xws systems.

Lub disadvantage yuav tsum tau hu ua tshwj tsis yog tias ib zaug xwb tau - tus nqi tsis pheej yig kiag li lawm xws li powered hais lus, thiab cov complexity ntawm lub kho (yog hlawv lub amplifier, nws yog tsim nyog los kiag li lauj lub txee thiab nrhiav tau ib tus kws khomob tshwjxeeb uas yuav siv kho).

Nws muaj ob hom ntawm xws li ib tug system. Thawj - qhov no yog lub hom tsev uas yog tsim heev dua lwm yam rau domestic siv. Qhov thib ob hom - ib tug kws. Nws yog siv rau concerts thiab lub koom haum ntawm ntau yam loj-scale txheej xwm. Kis xws active acoustic systems pib kwv yees li nyob rau hauv lub sixties ntawm lub thib nees nkaum caug xyoo - cia li mus rau lub invention, ib tug hluav taws xob guitar thiab thaum pib ntawm lub era ntawm hard pob zeb.

Txawm tus thawj heev guitar "combos" (amplifiers) yog lub teeb, thiab, nyob rau hauv qhov tseeb, yog precisely lub active caij. Ntawm cov ntau musicians xws "raj suab" thiab hnub no yog pom tias yuav tsum muaj ib tug siv. Uas yog vim li cas tam sim no txawm yog qhov tseem ceeb ntawm lub suab nyob rau hauv kev hais kwv txhiaj halls yog ib lub teeb khoom (guitar thiab ntses bass thaj tsam amps). Lub suab ntawm lawv yog kis tau los ntawm lub microphone rau cov saib thiab lub ntsiab portals.

Loudspeakers active tej zaum yuav ua thickness, muaj ntau functionality thiab chaw pib sib txawv suab. 20-30 W systems feem ntau yog siv nyob rau hauv tsev. Ib tug ntau haib system (100 watts) yog siv tau nyob rau concerts.

Hais txog functionality - powered hais lus yuav muab siv tau nyob rau hauv ib tug ntau yam ntawm kev txawv txav tej yam kev mob (xws li cov pwm), muaj neeg sab nraud qhov chaw ntawm lub hwj chim, kev tiv thaiv tiv thaiv overloads. Feem ntau, xws systems yog muab nrog ua-nyob rau hauv reverb, EQ los yog los processor.