Le sekhonophone yokukhansela umsindo ingaphezulu kweklasi layo
I-Bose QuietComfort 15 yayiyisikhathi eside semisindo ye-noise-ekhansela ngoba umsindo wayo wokukhansela wawungcono kunanoma ubani omunye, futhi kwazwakala kahle. I-Bose iyayifaka esikhundleni se-Quiet Comfort 25 ngo-2014, i-headphone ebiza okufanayo futhi inikeza isici esisha: i-QC25 isebenza ngendlela yezintandokazi lapho amabhethri ayo ehla, okuyinto i-QC15 engayitholi.
01 ka 09
Inguqulo entsha ye Standard Standard
UBose uthi i-QC25 izwakale kangcono, ikhululekile kakhulu, futhi yenziwe ngezinto eziphakeme zekhwalithi engcono kakhulu kunabokuqala bayo. I-QC25 ifika necala eliyinkimbinkimbi nakakhulu kunalowo ohlinzekwe nge-QC15. Ilinekhebula elisha elitholakalayo elihlinzeka nge-clunky-style ye-bayonet isitayela ku-QC15.
02 ka 09
Bose QC25: Izici kanye ne-Ergonomics
Izici ze-Bose QC25 zihlanganisa:
- 4.5 ft / 1.4 m cord etholakalayo nge-iOS-ehambisanayo mic / kude
- Umsindo osebenzayo ukhansela nge-off / off switch
- Omunye ibhethri le-AAA liyadingeka
- Imodi ye-passive lapho amabhethri ehla
- Icala lokufaka lifakiwe
- Isisindo: 6.9 oz / 196 g
Njengoba ungasho kusuka esithombeni, i-QC25 ngakwesokunxele ifana ne-QC15 ngakwesokudla.
Isici esiyinhloko lapha ukuthi i-QC25 isasebenza lapho ibhethri ihla. Futhi, icala layo elincanyana, elingaphezulu kwemigqa futhi kulula ukugxila esikhwameni sekhompyutheni.
Ukuzizwa nokududuza kwamakhanda ama-headphones amabili kuyafana, futhi kuhle ngoba lezi headphones zikhululekile kakhulu kunanoma yiziphi izimbangi zabo. Ngokuqondene nomsindo, kunzima ukushaya. Ukufanisa umsindo we-Bose ukukhansela kunzima kwabancintisana ngoba inkampani inamalungelo amasha abanikazi enqubo.
03 ka 09
Bose QC25: Ukusebenza
I-QC25 ne-QC15 zifana nokunye okuningi kunalokho okuhlukile. Umehluko omkhulu usezinhlakeni. I-QC25 ibonakala inesiphakamiso esinamandla kakhulu emazansi aphansi, mhlawumbe cishe angu-40 i-hertz nangaphansi, okunikeza i-drum yokupaka kanye namanothi aphansi e-bass guitar more dynamics kanye ne-punch. Lokhu kwenza umsindo we-QC25 nje kancane nje njengokuthile okuthiwa ama-Beats angayenza.
Ukuphakama okuphansi kwe-QC25 kubonakala kuthinta i-midrange ephansi kancane, okungenza amazwi avele asindayo. Kukhona ukuphakama okubonakalayo ekuphumeni kwe-treble engezansi, endaweni ethile ephakathi no 2 noma 3 kHz.
Ama-headphones we-Bose akakaze abe ne-rep for sounding okuningiliziwe noma enhle kakhulu ngokurekhoda okubucayi. Ama-bass anamandla kakhulu ne-resonant e-QC25 enza umsindo ubonakale uyingcosana.
Imodi ye-QC25 yokungahambisani nomsindo ukukhansela kubonakala ingenakuphila futhi ivinjelwe kancane, ngaphandle kwemininingwane eminingi noma ukujula, kodwa kuzwakala kangcono kakhulu kunezingqikithi izindiza ezihlinzekayo.
Ngendiza, i-QC25 yenza umsebenzi omkhulu wokuqeda ukuqhutshwa kwezinjini ze-jet nomsebenzi onengqondo wokunciphisa umsindo wesistimu yokuphuza umoya kanye nezinye izingxoxo zabagibeli.
04 ka 09
Ukulinganisa: Ukuphendula kwamavamisa
Ishadi libonisa impendulo ye-QC25 yemvamisa eziteshini zesobunxele nezakwesokudla, ngomsindo wokukhansela nokuvala. Akukho lutho oluphawulekayo ekuphenduleni ngomsindo ukukhansela. Kuyinto efanele "ngencwadi" impendulo yekhanda lekhanda okufanele ingabi nembala emibala. Ngokusobala, umsindo uhlukile kakhulu ngomsindo ukukhansela; inamabhasi angaphansi, ama-middlebass angaphezulu kanye nezinsika ezingaphezulu, -5 kuya -10 dB impendulo engaphenduki.
05 ka 09
Izindlela: Imodi ye-NC esebenzayo nemodi ye-Passive vs. QC15
Leli shidi lifanisa impendulo ye-QC25 ne-NC ku-NC futhi i-NC ayiphendule ekuphenduleni kwe-QC15 nge-NC on. (I-QC15 ayisebenzi no-NC off). Izilinganiso ze-NC zibhekiswe kuma-94 dB ku-500 Hz. Ngokusobala, i-QC25 ibelana ngezici eziningi ze-acoustical ne-QC15. Imodeli entsha inezinsizakalo ezisezingeni eliphansi, amandla angaphansi kancane we-midrange azungeze i-1 kHz, kanye namanye ama-dB angaphezu kwamandla angaphezu kwe-2 kHz. Kusobala ukuthi i-QC25 in mode (NC-off) imodi ihluke kakhulu kunoma iyiphi iphonephone kumodi esebenzayo (NC-on).
06 ka 09
Izindlela: Ukuhlukanisa
Leli shidi libonisa ukuhlukaniswa kwesiteshi sokunene se-QC25 ne-NC off (i-trace eluhlaza) ne-NC on (umkhondo omude), uma kuqhathaniswa ne-QC15 (i-trace yama-orange). Izinga elingezansi kwe-75 dB likhombisa ukunakekelwa komsindo wangaphandle-ngokwesibonelo, 65 dB eshadini kusho ukunciphisa -10 dB emisindeni engaphandle kuleyo mvamisa yemisindo. I-line engezansi ishadi, kungcono.
Kokubili ama-headphone ahambisa ukukhanselwa komsindo omuhle kakhulu. Noma kunjalo, i-QC25 ayibonakali, okungenani kulezilinganiso, ukuthuthukisa kakhulu ukusebenza kuka-QC15. Kubonakala sengathi i-QC15 ihluke kancane phakathi kuka-200 no-600 Hz.
07 ka 09
Izindlela: I-Spectral Decay
Leli shidi libonisa ukubola kwe-spectral (noma i-waterfall) ye-QC25 nge-NC on. Izindebe ezindala eziluhlaza okwesibhakabhaka zikhombisa ama-resonances abalulekile Lokhu kubonisa inani elilinganiselwe le-resonance kumabhasi, kodwa i-resonance eqinile cishe nge-1.35 kHz.
08 ka 09
Izindlela: Ukuphazamisa nokuningi
Leli grafu libonisa ukuphazamiseka okuphelele kwe-QC25 kulinganiswe ku-90 no-100 dBA. Lawa amazinga aphezulu kakhulu wokulalela-awungeke ulalele kulowo mqulu. Ukuphazamiseka kuphakeme kancane, nakuba ikakhulukazi emazingeni aphansi. I-curve ye-90 dBA ijwayelekile ngokungekho ukuphazamiseka phakathi nendawo nokuhamba futhi cishe amaphesenti angu-4 THD kuma-20 Hz. Ku-100 dBA, kune-spike ephazamisayo phakathi kuka-2 no-3 kHz, nokuphazamiseka okuncane kwezingoma (amaphesenti amathathu ku-60 Hz nangaphansi, okwenyuka cishe kumaphesenti angu-6 ku-20 Hz). Ungakuzwa lokhu? Cishe cha. Umngcele wokuphazamiseka okuzwakalayo ekuhlolweni kwe-subwoofer kuvame ukubhekwa ukuthi ungamaphesenti angu-10.
Impendulo yemvamisa ishintshwe kancane ngomthombo wesigqi wokuhlola (i-75 ohms) umthombo wokuhlola, okufanisa lokho ozokuzwa uma usebenzisa ikhono lekhanda lekhwalithi eliphansi njengalezo ezakhiwe kuma-laptops amaningi. Ama-bass ahle ngo--4 dB ku-20 Hz, futhi uhamba nge--1 dB ngaphezu kwe-4 kHz. Kusobala ukuthi uBose wenza okuthile okuhlukile lapha.
Ngobuzwe obunama-32 ohms, bulinganiselwe ngesignali esingu-1 mW phakathi kuka-300 Hz no-3 kHz ku-32 ohms impedance, ngu-97.2 dB kwimodi ye-NC-off kanye no-101.3 dB kwimodi esebenzayo (NC-on). Kwanele ukunikeza ivolumu eningi kunoma imuphi umthombo nge-NC on, futhi ngokwanele kuzo zonke kodwa imithombo ebuthakathaka nge-NC off.
09 ka 09
I-Bose QC25: Ukuthatha Okokugcina
I-QC25 ingcono kuneyokuqala kwayo ngezindlela ezintathu: Ibukeka ibanda kakhulu, icala layo lincane, futhi likhiqiza umsindo ngisho nalapho ibhethri liwela phansi. Kusukela ekuboneni kokusebenza, kubonakala sengathi ukuphinda kuncike kancane kwezici ze-QC15.