01 ka-06
Ukusebenzisa Izinyathelo Zokususa Ukuphikisana Kwedluli
Ngesikhathi ngibhala isihloko sami sokuqala ngiphenya ukuthi imiphumela yocingo yesiphakamiso ekusebenzeni kesikhulumi ingalinganiswa, ngabonisa ukuthi ukushintsha izinkambo zesipikha kungase kube nemiphumela yokulalela umsindo wesistimu.
Ngaleso sivivinyo, ngasebenzisa izibonelo eziningi kakhulu: isibonelo, ikhebula elilinganiselwa ku-24 ngokubhekene nekhebula le-12 gauge. Abafundi abaningi bazibuza ukuthi ngabe ngabe umehluko onjani engingawulinganisa uma ngiqhathanisa ikhebula elijwayelekile le-12 gauge kwikhebula lesikhulumi esiphakeme. Ngangizibuza futhi.
Ngakho-ke ngathatha amakhodi okugcina aphezulu, ngibole ezinye izintambo eziphezulu kakhulu ezivela kubangani abaningana, futhi ngiphinda ukuhlolwa.
Ukuze ubuyekeze indlela yokuhlola: Ngisebenzise i-analyzer yami ye-Clio 10 FW yomsindo kanye nomkrofoni wokulinganisa we-MIC-01 ukuze ngilinganise impendulo yomunye wamazwi wami weRevel Performa3 F206 ekamelweni. Ukulinganisa kwamakamelo kwakudingeka ukuthi kuqinisekiswe ukuthi bekungeke kube nomsindo omkhulu wendalo. Yebo, ukukala ngaphakathi kwamakamelo kubonisa imiphumela eminingi ye-acoustics ekamelweni, kodwa lokho akukhathalekile ngoba lapha, ngibheke kuphela umahluko emkhatsini olinganisiwe lapho ngishintsha izintambo.
Futhi nje ukuphinda uphinde ufunde le ncazelo ngemuva kwalokhu: Abashayeli besipikha kanye nezingxenye ze-crossover benze njengesihlungi esiyinkimbinkimbi kagesi esilungele ukunikeza isikhulumi umsindo oyifunayo. Ukwengeza ukumelana, ngesimo sekhebula lesikhulumi esiphezulu, kuzoshintsha ama-frequencies lapho isihlungi sisebenza futhi ngaleyo ndlela sishintshe impendulo yemvamisa yesipikha. Uma ikhebula lengeza inductance noma ikhono elikhulu ekuhlungeni, khona-ke, lokho kungathinta umsindo.
02 ka 06
Isivivinyo 1: I-AudioQuest vs. QED vs. 12-Gauge
Ekuvivinyweni kwami, ngilinganise imiphumela yamakhodi aphezulu aphezulu ekude ubude obuphakathi kuka-10 kuya ku-12 futhi wawaqhathanisa nesilinganiso ngekhebula lesikhulumi se-12 gauge. Ngenxa yokuthi izilinganiso ziningi kakhulu ezifanayo, ngizonikeza lapha kathathu ngesikhathi, nezintambo ezimbili eziphezulu ezibhekene nekhebula elijwayelekile.
Ishadi lapha libonisa ikhebula elijwayelekile (i-trace blue), ikhebula le-AudioQuest Uhlobo lwe-4 (umkhondo obomvu) nekhebula le-QED Silver Anniversary (i-trace eluhlaza). Njengoba ungabona, ingxenye enkulu kakhulu umahluko umehluko kakhulu. Eqinisweni, ukuhlukahluka okuningi kunesilinganiso esivamile, esincane esilinganisweni sokulinganisa esitholayo lapho wenza izilinganiso ze-transducers zomsindo ngenxa yokulandelana komsindo, ukushintsha kwezinto ezifudumele kubashayeli, njll.
Kukhona umehluko omncane ngaphansi kuka-35 Hz; amakhodi aphezulu-kakhudlwana akhiqiza ukukhishwa okungaphansi kwe-bass kusuka kusikhulumi esingaphansi kwe-35 Hz, nakuba umehluko ku-oda we -0.2 dB. Akungabazeki ukuthi lokhu kuzothulwa, ngenxa yokungahloniphi komzweli kulolu hlu; ukuthi umculo omningi awunakho okuningi kulolu hlu (ngokuqhathanisa, inothi eliphansi kunazo zonke kuma-basitars asezingeni elijwayelekile kanye nezisekelo eziqondile yi-41 Hz); futhi ngoba izikhulumi ezinkulu kuphela zombhoshongo zinezikhiqizo eziningi ezingaphansi kwe-30 Hz. (Yebo, ungangezela i-subwoofer ukuthi ihambe kancane, kodwa cishe wonke lawo ayenawo amandla futhi ngaleyo ndlela ayengeke athintshwe ikhebula lesikhulumi.) Uzozwa umehluko omkhulu ekuphenduleni ngokuhambisa ikhanda lakho 1 unyawo kunoma iyiphi indlela.
Angizange ngithole ithuba lokukala izindawo zikagesi zekhebula le-AudioQuest (umfana wayeyidinga ngokuzumayo), kodwa ngilinganise ukumelana nokukhishwa kwezintambo ze-QED ne-generic. (Inductance yezintambo zaziphansi kangangokuba i-Clio 10 FW yami ingalinganisa.)
I-Generic 12-gauge
Ukuphikiswa: 0.0057 Ω per ft.
I-Capacitance: 0.023 nF ngezinyawo
I-QED Silver Anniversary
Ukuphikiswa: 0.0085 Ω per ft.
I-Capacitance: 0.014 nF ngezinyawo
03 ka 06
Isivivinyo sesi-2: I-Shunyata ngokumelene ne-High-End Prototype vs. 12-Gauge
Le ngqungquthela eyalandela yenza ikhebula eliphakeme kakhulu lokuphela: i-Shunyata Research Etron Anaconda eyi-1.25-intshi kanye nekhebula eliyi-0.88-inch-thick thick prototype elakhiwe inkampani yokulalelwayo ephezulu. Bobabili babonakala bekhudlwana ngoba basebenzisa ama-tubing okuboshwe ukumboza izintambo zangaphakathi, kodwa namanje, bobabili banobudisi futhi bebiza. Ikhebula le-Shunyata Reserach lihamba cishe ngama-$ 5,000 / pair.
Ishadi lapha libonisa ikhebula elijwayelekile (i-trace blue), ikhebula le-Shunyata Research (i-trace elibomvu) kanye nekhebula elingenagama elingapheli (i-trace green). Nazi izilinganiso zikagesi:
U-Shunyata Ucwaningo U-Etron Anaconda
Ukuphikiswa: 0.0020 Ω per ft.
I-Capacitance: 0.020 nF ngezinyawo
I-High-End Prototype
Ukuphikiswa: 0.0031 Ω nge-ft.
I-Capacitance: 0.038 nF ngonyawo
Lapha siqala ukubona umehluko, ikakhulukazi ngaphezulu kwe-2 kHz. Masisondeza ukuze sibheke ngokuseduze ...
04 ka 06
Isivivinyo 2: Zoom Buka
Ngokwandisa izinga eliphakeme (dB) kanye nokukhawulela umkhawulokudonsa, singabona ukuthi lezi zintambo ezinkulu, ezinamandla ziveza umehluko olinganiselwe kwisiphendula sesikhulumi. I-F206 yisikhulumi se-8-ohm; ubukhulu balo mthelela buyokwanda nge-4-ohm isikhulumi.
Akuwona umehluko omkhulu - ngokuvamile ukukhuliswa kwe-+0.20 dB no-Shunyata, +0.19 dB nombukiso-kodwa uhlanganisa ububanzi obungaphezu kwama-octaves amathathu. Ngesikhulumi se-4-ohm, izibalo kufanele ziphindwe kabili, ngakho-ke +0.40 dB ye-Shunyata, +0.38 dB ye-prototype ..
Ngokusho kocwaningo okukhulunywe ngawo esihlokweni sami sokuqala , ama-low-Q (ama-bandwidth aphezulu) ama-0.3 dB ubukhulu bungakhulunywa. Ngakho ngokushintsha ikhebula elijwayelekile noma i-cable-gauge ephezulu ekugcineni ikhebula kwenye yalezi zingcingo ezinkulu, nakanjani kungenzeka ukuthi umehluko ungazwakala.
Lokho kusho ukuthini? Angazi. Ungase ukwazi noma ungakuboni, futhi bekuyoba okucashile ukusho okungenani. Angikwazi ukucabangela ngokuthi ngabe kuzokuthuthukisa noma ukuhlaziya umsindo wesipikha; kwakuzophakamisa ukuhamba, futhi nezinye izikhulumi eziyoba kuhle futhi abanye kungaba kubi. Qaphela ukuthi okwakungokoqobo okwakhiwa kwamakamelo acoustics ukwelashwa kuzoba nomphumela omkhulu wokulinganisa.
05 ka 06
Isivivinyo 3: Isigaba
Ngesifiso esikhulu, ngiphinde ngiqhathanise izinga lokushintshwa kwesigaba esibangelwa izintambo, nekhebula elijwayelekile elihlaza okwesibhakabhaka, i-Audioquest ebomvu, umbukiso ohlaza, i-QED e-orange kanye ne-Shunyata enombala obomvu. Njengoba ungabona ngaphezulu, akukho sigaba sokubonakala esingabonwa ngaphandle kwama frequencies aphansi kakhulu. Siqala ukubuka imiphumela engezansi kwe-40 Hz, futhi zibonakala zibonakala ngaphezulu ngaphansi kwe-20 Hz.
Njengoba ngishilo ngaphambili, le miphumela cishe ayengeke izwakale kakhulu kubantu abaningi, ngoba umculo omningi awunakho okuqukethwe okuningi kuma frequencies anjalo, kanti izikhulumi eziningi azikho okuningi phakathi kuka-30 Hz. Noma kunjalo, angikwazi ukusho ngokuqiniseka ukuthi le miphumela yayizobonakala.
06 ka-06
Ngakho-ke INGABE IZINDABA ZESEMPILO Zenza Umehluko?
Lokho okuhlolwayo kubonisa ukuthi abantu abakuphikisayo abakwazi ukuzwa umehluko phakathi kwezintambo ezimbili ezikhulumiwe ezihlukahlukene ze-gauge elungile akulungile. Kungenzeka ukuzwa umehluko ngokushintsha izintambo.
Manje, lokho kungabe kusho ukuthini kuwe? Kusobala ukuthi kube yimfihlakalo. Njengoba kuqhathaniswa okuyimpumputhe yocingo yezikhulumi ezijwayelekile esizenzayo kuThe Wirecutter kubonisiwe, ngisho nasezindabeni lapho abalaleli bezwa khona umehluko phakathi kwezingcingo, ukufunwa kwaleyo ngqikithi kungashintsha kuye ngesiphakamiso oyisebenzisayo.
Kulezi zivivinyo ezingavumelekile, kubheka kimi njengokungafani okukhulu ekusebenzeni kwekhebula lesikhulumi kubangelwa ngokuyinhloko kumanani wokumelana ekhebula. Ukungafani okukhulu engangikulinganako kwakunezintambo ezimbili ezinokumelana okuphansi kakhulu kunabanye.
Ngakho yebo, izingcingo zesikhulumi zingashintsha umsindo wesistimu. Akusikho okuningi. Kodwa bangakwazi ukushintsha umsindo.