Midiplus MI 5 - masu saka idanu na Bluetooth masu aiki
Alamar Midiplus tana ƙara zama sananne a kasuwar mu. Kuma wannan yana da kyau, saboda yana ba da samfuran aiki a farashi mai ma'ana. Irin su ƙananan masu saka idanu da aka kwatanta a nan.
M.I. 5 kasance cikin rukuni lasifika masu aiki biyu masu aikiinda muke ciyar da sigina zuwa duba ɗaya kawai. Za mu kuma same shi a cikinsa sarrafa ƙara da wutar lantarki. Wannan bayani ya dogara ne akan tsarin aiki mai aiki, wanda duk kayan lantarki, ciki har da amplifiers, ana sanya su a cikin mai duba daya, yawanci hagu. Na biyu m, yana karɓar siginar matakin lasifika daga mai duba aiki, wato, da yawa ko dubun volts.
Yawancin lokaci a cikin wannan yanayin, masana'antun da yawa suna tafiya don sauƙi mai sauƙi, suna haɗa masu magana da kebul guda ɗaya. Wannan yana nufin cewa mai saka idanu ba hanya biyu ba ne (tare da amplifiers daban don i), amma watsa shirye-shiryen watsa shirye-shirye, kuma ana yin rabe-raben ba tare da izini ba ta hanyar yin amfani da hanya mai sauƙi. Wannan sau da yawa yakan sauko zuwa capacitor guda ɗaya saboda ita ce hanya mafi sauƙi kuma mafi arha don "raɓawa" manyan mitoci daga dukkan nau'ikan sautin sauti.
Gaskiya amplifier tashoshi biyu
A cikin hali na M.I. 5 muna da mafita daban-daban. Ana haɗa mai saka idanu mai wucewa zuwa kebul na waya mai aiki huɗu, kuma wannan tabbataccen alamar cewa masu saka idanu suna ba da raba bandwidth mai aiki da keɓancewar amplifiers don da. A aikace, wannan yana fassara zuwa yuwuwar ingantaccen siffa ta mitar da tace gangara a cikin giciye, kuma, sakamakon haka, haɓakar sarrafa maɓalli na ƙungiyar daga mitar giciye.
Wani na iya cewa: "Mene ne bambanci yake yi, saboda waɗannan masu saka idanu suna da kasa da 700 zł - don wannan kuɗin babu abin al'ajabi! Plus wannan Bluetooth! A wasu hanyoyi, wannan daidai ne, saboda wannan kudi yana da wuya a saya abubuwa da kansu, ba tare da la'akari da duk fasahar da ke bayan masu saka idanu ba. Kuma har yanzu! A bit na Far Eastern sihiri, na kwarai yadda ya dace na dabaru da kuma inganta samar da halin kaka, m ga Turawa, da gudummawar ga gaskiyar cewa ga wannan adadin muna samun wajen ban sha'awa saiti don sauraron gida studio ko multimedia tashar.
zane
Ana iya shigar da siginar a layi - ta hanyar Ma'auni na 6,3mm TRS shigarwar da RCA marasa daidaituwa da 3,5mm TRS. Na'urar Bluetooth 4.0 da aka gina a ciki kuma na iya zama tushe, kuma ana daidaita jimlar siginar siginar daga waɗannan kafofin ta amfani da ma'aunin ƙarfi a kan ɓangaren baya. Matatar shelving mai canzawa tana ƙayyade matakin manyan mitoci daga -2 zuwa +1 dB. Na'urorin lantarki sun dogara ne akan da'irori na analog., nau'ikan amplifier guda biyu suna aiki a cikin aji D, da wutar lantarki mai sauyawa. Ingantacciyar haɓakawa da hankali ga daki-daki (kamar keɓancewar sauti na jacks na lasifikar da TPCs) suna magana da mahimmancin tsarin masu zanen kaya zuwa jigon.
Ana sayar da masu saka idanu a matsayin biyu, wanda ya ƙunshi saiti mai aiki da aiki, wanda aka haɗa ta hanyar kebul na lasifikar waya 4.
Baya ga nau'ikan shigarwar layi guda uku, masu saka idanu suna ba da ikon aika sigina ta Bluetooth.
masu sanya idanu suna da ƙirar bass-reflex tare da fitarwa kai tsaye zuwa ɓangaren baya. Saboda amfani da diaphragm mai inci 5 tare da babban juzu'in diaphragm, ya zama dole a yi amfani da shari'ar mai zurfin ɗan girma fiye da yadda ake gani daga girman girman. Mai saka idanu mai wucewa ba shi da na'urorin lantarki, don haka ainihin ƙarar sa ya fi na mai duba aiki girma. An kuma yi la'akari da wannan, isasshe ramawa ga wannan ta hanyar ƙara adadin kayan damping.
Diamita na aikin woofer diaphragm shine 4,5 ″, amma bisa ga salon yanzu, masana'anta sun cancanci shi azaman 5 ″. Woofer an shigar da shi a cikin madaidaicin gaban panel tare da gefuna masu bayanin martaba. Wannan zane ne mai ban sha'awa kuma mai ban sha'awa wanda ke ba ku damar haɓaka diamita acoustic na tushen ƙananan ƙananan da matsakaici. Tweeter kuma yana da ban sha'awa, tare da diaphragm na 1,25 ″ dome, wanda kusan ba shi da analogues a cikin wannan kewayon farashin.
ra'ayin
yana yin aikin sa lokacin kunna bass daga 100 Hz da sama, kuma a cikin kewayon 50 ... 100 Hz yana da ƙarfin gwiwa da goyan bayan mai kyau sosai. lokaci inverter. Na ƙarshe, idan aka ba da girman na'urar, yana da ɗan shiru kuma baya gabatar da gagarumin murdiya. Duk wannan yana magana game da mafi kyawun zaɓi na abubuwa da tunani mai kyau, ƙirar da aka yi.
Amsar mitar mai saka idanu, la'akari da matsayi uku na babban tacewa. A ƙasa akwai halayen jituwa na 55th da 0,18th don duk saitunan tacewa. Matsakaicin THD shine -XNUMXdB ko XNUMX% - babban sakamako ga irin waɗannan ƙananan masu saka idanu.
A tsakiyar mitoci, yana fara rasa tasirin sa, wanda ya ragu da 1 dB a 10 kHz. Anan koyaushe kuna buƙatar nemo madaidaicin ma'auni tsakanin abubuwa kamar farashi, ingancin sarrafa bass da matakin murdiya. Wannan ainihin aikin daidaitawa ne akan layi mai kyau, har ma masana'antun da aka gane a matsayin shugabanni ba koyaushe suke yin nasara a wannan fasaha ba. A cikin yanayin MI5, ba ni da wani zaɓi sai dai in nuna girmamawata ga aikin da masu zanen kaya suka yi, waɗanda suka san abin da kuma yadda suke so su cimma.
Halayen mitoci na tushen siginar mutum ɗaya: woofer, tweeter da inverter lokaci. Zaɓuɓɓukan ƙwararrun sigogin tsaga, ingantattun direbobi da ƙirar abin koyi na tashar bass-reflex suna sa mai duba sauti mai ban sha'awa sosai.
Rabuwar mitar shine 1,7 kHz kuma direban ya kai cikakken inganci a 3 kHz. An zaɓi gangara na masu tacewa kamar yadda jimillar asarar inganci a mitar giciye ya kasance 6 dB kawai. Kuma tunda wannan shine kawai farashin da zaku biya don sarrafa santsi na mitoci har zuwa 20 kHz, Ina matukar son irin waɗannan abubuwa.
Kwatanta halaye da murdiya masu jituwa lokacin kunna sigina ta hanyar shigar da layi da tashar jiragen ruwa ta Bluetooth. Banda jinkirin da aka gani a cikin martanin motsi, waɗannan jadawali kusan iri ɗaya ne.
Ban san inda masu haɓakawa suka samo wannan direban ba, amma wannan shine ɗayan mafi ban sha'awa ƙaramin tweeters na dome da na taɓa ji. Tunda yana da diamita na 1,25 ″, mai wuya ko da a cikin abin da ake ɗaukar masu saka idanu ƙwararru, yana iya ɗaukar aiki cikin sauƙi daga 1,7kHz yayin da yake riƙe matsakaicin matakin jituwa na biyu na -50dB dangane da mitar mahimmanci (muna magana ne kawai 0,3, XNUMX%). A ina ake fitowa kabu? A cikin jagorancin rarrabawa, kuma bisa la'akari da yanayin tebur na waɗannan masu saka idanu, ba kome ba ne.
A aikace
Sautin MI 5 yana da kyau sosai, musamman dangane da farashi da aiki. Suna jin daɗin abokantaka, masu fahimta, kuma duk da ƙananan ingancin su na tsakiya, suna wakiltar gefen sautin mai haske, watakila ma mai haske sosai. Akwai mafita don wannan - mun saita matattarar saman-shelf zuwa -2 dB, kuma masu saka idanu da kansu an saita su zuwa "ɗaɗan squint daban-daban". Muddin ɗakin ba ya jujjuyawa tare da ɗakin studio na gargajiya na 120-150Hz, za mu iya tsammanin ingantaccen ƙwarewar sauraron abin dogaro yayin tsarawa da samarwa na farko.
sake kunnawa na Bluetooth kusan iri ɗaya ne da sake kunna kebul, sai dai kusan 70ms na jinkirin watsawa. An ba da rahoton tashar tashar BT azaman MI 5, tana ba da ƙimar samfurin 48kHz da ƙudurin iyo 32-bit. Hankalin na'urar Bluetooth ya karu sosai ta hanyar shigar da eriya 50 cm a cikin masu saka idanu - wannan wata hujja ce ta yadda masu zanen kaya suka kusanci aikinsu.
Taƙaitawa
Abin mamaki, idan aka yi la'akari da farashin waɗannan masu saka idanu da ayyukansu, yana da wuya a yi magana game da kowane kasawa. Tabbas ba za su yi wasa da babbar murya ba, kuma daidaiton su ba zai gamsar da buƙatun masu kera ba waɗanda ke son cikakken iko akan siginonin motsa jiki da zaɓin kayan aikin. Ƙarƙashin ƙaƙƙarfan tasiri ba na kowa ba ne, musamman ma idan ya zo ga sauti da kayan kida. Amma a cikin kiɗan lantarki, wannan aikin ba shi da mahimmanci. Zan iya ɗauka cewa sarrafa hankali da wutar lantarki suna kan baya, kuma igiyar wutar tana toshe har abada cikin duban hagu. Koyaya, wannan ba wani abu bane da ke shafar aikin MI 5 da sautinsa.
Tare da farashinsu, ingantaccen aikinsu, da kulawa ga cikakkun bayanai na sonic a cikin sake kunnawa, sun dace don fara kasadar kidan ku. Kuma idan muka girma daga cikinsu, za su iya tsayawa a wani wuri a cikin ɗakin, suna ba ku damar kunna kiɗa daga wayarku.
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