Momwe mungasankhire ma amplifiers ndi okamba magitala a bass?

Kodi gitala la bass ndilofunika kwambiri kuposa amplifier yomwe timagwirizanitsa nayo? Funso ili silinakhalepo, chifukwa mabass otsika amamveka oyipa pa amplifier yabwino, koma chida chachikulu chophatikizidwa ndi amp osauka sichidzamvekanso bwino. Mu bukhuli, tithana ndi ma amplifiers ndi zokuzira mawu.

Lamp kapena transistor?

"Nyali" - mwambo kwa zaka zambiri, zachikale, phokoso lozungulira. Tsoka ilo, kugwiritsa ntchito machubu amplifiers kumaphatikizapo kufunikira kosintha machubu nthawi ndi nthawi, zomwe zimawonjezera kwambiri ndalama zogwirira ntchito za "ng'anjo" za chubu, zomwe zimakhala zokwera mtengo kwambiri kuposa omwe akupikisana nawo. Mpikisanowu uli ndi ma transistor amplifiers. Phokosoli siligwirizana ndi amplifiers a chubu, ngakhale masiku ano ukadaulo ukuyenda mwachangu kotero kuti mainjiniya akuyandikira kwambiri kuti afikire mawonekedwe a sonic a machubu kudzera pa transistors. Mu "transistors" simuyenera kusintha machubu, komanso, "ng'anjo" za transistor ndizotsika mtengo kuposa machubu. Yankho losangalatsa ndi ma hybrid amplifiers, kuphatikiza chubu preamplifier ndi transistor mphamvu amplifier. Ndiotsika mtengo kuposa machubu amplifiers, komabe amajambula mawu ena a "chubu".

Oyandikana nawo "nyimbo".

Muyenera kuwerengera kuti chubu chilichonse amplifier chimafunika kusinthidwa mpaka mulingo wina kuti chimveke bwino. Ma transistor amplifiers alibe vuto lililonse ndi izi, amamveka bwino ngakhale pamlingo wocheperako. Ngati tilibe oyandikana nawo akusewera, mwachitsanzo, lipenga kapena saxophone, kusokoneza "nyali" kungakhale vuto lalikulu. Kuphatikiza apo, zimakulitsidwa chifukwa chakuti ma frequency otsika amafalikira bwino pamtunda wautali. Kukhala mumzinda, mukhoza kupanga theka la chipikacho kusiya kutikonda. Titha kusewera mwakachetechete kunyumba pa amplifier yokulirapo ndikuyimba pamakonsati. Nthawi zonse mumatha kusankha amplifier yaing'ono ya chubu ndi choyankhulira chaching'ono, koma mwatsoka pali "koma" imodzi. Pa magitala a bass, ma speaker ang'onoang'ono amamveka oyipa kuposa akulu chifukwa sizokwanira kupereka ma frequency otsika, koma zambiri pambuyo pake.

Mutu + ndime kapena combo?

Combo ndi amplifier yokhala ndi zokuzira mawu m'nyumba imodzi. Mutu ndi gawo lomwe limakulitsa chizindikiro kuchokera ku chida, ntchito yomwe ndi kubweretsa chizindikiro chokwezeka kale ku chowulira mawu. Mutu ndi mzati pamodzi ndi mulu. Ubwino wa comba ndizachidziwikire kuyenda bwino. Tsoka ilo, zimapangitsa kuti zikhale zovuta kusintha zokuzira mawu, ndipo kuwonjezera apo, ma transistors kapena machubu amawululidwa mwachindunji ndi kuthamanga kwamphamvu kwambiri. Izi zimakhala ndi zotsatira zoipa pa ntchito yawo kumlingo wina. M'ma combos ambiri ndizowona kuti wokamba nkhani wina akhoza kulumikizidwa, koma ngakhale titazimitsa chomangidwa, timakakamizika kunyamula dongosolo lonse la combo pamene tikusuntha amplifier kuchokera kumalo kupita kumalo, koma nthawi ino ndi wolankhula wosiyana. Pankhani ya ma stacks, tili ndi mutu wam'manja komanso mizati yocheperako, yomwe kuphatikiza ndizovuta zoyendera. Komabe, titha kusankha chokweza mawu malinga ndi zomwe timakonda. Kuonjezera apo, ma transistors kapena machubu mu "mutu" samawonekera chifukwa cha kupanikizika kwa mawu, chifukwa ali m'nyumba zosiyana ndi zokuzira mawu.

Kukula kwa olankhula ndi kuchuluka kwa zipilala

Kwa magitala a bass, olankhula 15 ”ndi wokhazikika. Ndikoyenera kutchera khutu ngati chowuzira (izi zimagwiranso ntchito pa chowuzira cholumikizira chomangidwa mu combach) chili ndi tweeter. Nthawi zambiri ndi 1 ”ndipo ili mugawo lomwelo monga wokamba wamkulu. Sikofunikira, koma chifukwa chake, gitala la bass limakhala lodziwika bwino kwambiri, lofunikira pakuswa kusakaniza mukamasewera ndi zala zanu kapena nthenga, makamaka ndi njira ya clang.

Chokulirapo chikakulirakulira, m'pamene chimatha kupirira ma frequency otsika. Ndicho chifukwa chake oimba nyimbo nthawi zambiri amasankha zokuzira mawu ndi 15 "kapena 2 x 15" kapena 4 x 15 "zolankhula. Nthawi zina kuphatikiza ndi 10 "wokamba mawu amagwiritsidwanso ntchito. 15 "wokamba nkhani amapereka mabass aakulu, ndipo 10" ali ndi udindo wodutsa mu gulu lapamwamba (udindo wofananawo umaseweredwa ndi ma tweeters opangidwa ndi oyankhula ndi 15 "wokamba nkhani). Nthawi zina osewera bass amasankha ngakhale 2 x 10 "kapena 4 x 10" kuti atsindike kupambana kwa gulu lapamwamba. Mabasi omwe amachokera kumeneko adzakhala ovuta kwambiri komanso okhudzidwa kwambiri, omwe angakhale ofunikira nthawi zambiri.

Pali malamulo ena oyenera kukumbukira posankha mizati. Ndikupatsani njira zotetezeka kwambiri. Pali, ndithudi, ena, koma tiyeni tiyang'ane pa omwe alibe chiopsezo chachikulu. Ngati simukutsimikiza chilichonse, funsani akatswiri. Osacheza ndi magetsi.

Zikafika pamphamvu, titha kusankha cholumikizira chofanana ndi mphamvu ya amplifier. Titha kusankhanso zokuzira mawu ndi mphamvu yochepa kuposa amplifier, koma muyenera kukumbukira kuti musamasule amplifier kwambiri, chifukwa mutha kuwononga okamba. Kuphatikiza apo, mutha kusankhanso zokuzira mawu ndi mphamvu yayikulu kuposa amplifier. Pankhaniyi, simuyenera kupitirira ndi kusokoneza amplifier, kuti musawononge, chifukwa zikhoza kuchitika kuti tidzayesa kugwiritsa ntchito mphamvu zonse za okamba pazochitika zonse. Ngati tigwiritsa ntchito moyenera, zonse ziyenera kukhala bwino. Cholemba chinanso. Mwachitsanzo, amplifier yokhala ndi mphamvu ya 100 W, kulankhula momveka bwino, "imapereka" 200 W ku 100 W speaker. aliyense wa iwo.

Pankhani ya impedance, imakhala yosiyana. Choyamba muyenera kuyang'ana ngati muli ndi kugwirizana kofanana kapena kosalekeza. Nthawi zambiri, zimachitika mofanana. Chifukwa chake ngati tili ndi kulumikizana kofananira ndi amplifier, mwachitsanzo ndi cholepheretsa cha 8 ohms, timalumikiza cholankhulira chimodzi cha 8-ohm. Ngati mwaganiza zogwiritsa ntchito zokuzira mawu 2, muyenera kugwiritsa ntchito zokuzira mawu 2 16 - ohm pa amplifier yomweyo. Komabe, ngati tili ndi kugwirizana kotsatizana, timagwirizanitsanso cholankhulira chimodzi cha 8-ohm ndi amplifier ndi cholepheretsa cha 8 ohms, koma apa ndi pamene kufanana kumathera. Pankhani yolumikizira mndandanda, mizati iwiri ya 2-ohm ingagwiritsidwe ntchito pa amplifier yomweyo. Kupatulapo kwina kungapangidwe, koma kulakwitsa kungakhale ndi zotsatira zowopsa. Ngati simuli otsimikiza 4%, tsatirani malamulo otetezeka awa.

Kuyang'ana chiyani?

Ma bass amplifiers nthawi zambiri amakhala ndi tchanelo chimodzi chokha chomwe chili choyera, kapena mayendedwe awiri omwe ali oyera komanso opotoka. Ngati tisankha amplifier popanda njira yosokoneza, tidzataya mwayi wopeza mawu osokonekera chifukwa cha amplifier. Ili si vuto lalikulu. Zikatero, ingogulani kupotoza kwakunja. Muyeneranso kumvetsera kuwongolera. Ma amplifiers ena amapereka ma multi-band EQ kwa magulu apawokha, koma ambiri amangopereka "bass - mid - treble" EQ. Nthawi zambiri, ma bass amplifiers amakhala ndi limiter (compressor yokhazikitsidwa mwapadera), yomwe imalepheretsa amplifier kupotoza kosafunika. Kuphatikiza apo, mutha kupeza kompresa yapamwamba yomwe imafanana ndi kuchuluka kwa voliyumu pakati pa kusewera mofatsa komanso mwaukali. Nthawi zina kusinthika kwapang'onopang'ono ndi mawonekedwe amapangidwira, koma izi zimangowonjezera ndipo sizikhudza mawu oyambira. Ngati mukufuna kugwiritsa ntchito kusinthika kwakunja ndi zotsatira zozungulira, onani ngati amplifier ili ndi loop yomangidwa mu FX. Kusinthasintha kwapang'onopang'ono ndi zotsatira za malo zimagwira ntchito bwino ndi amp kudzera pa loop kusiyana ndi pakati pa bass ndi amp. Wah - wah, kupotoza ndi kompresa nthawi zonse zimalumikizidwa pakati pa amplifier ndi chida. Ndikofunikira kwambiri kuwona ngati amplifier imapereka zotulutsa zosakaniza. Mabass nthawi zambiri amalembedwa motsatira mzere, ndipo popanda kutulutsa koteroko sizingatheke. Ngati wina akufunika kutulutsa chomvera pamutu, ndikofunikira kuwonetsetsa kuti ili mu amplifier yomwe wapatsidwa.

Kukambitsirana

Ndikoyenera kulumikiza mabasi ku chinthu chamtengo wapatali, chifukwa ntchito ya amplifier popanga phokoso ndi yaikulu. Nkhani ya "chitofu" sichiyenera kunyalanyazidwa ngati mukufuna kumveka bwino.