01 ntawm 05
Kev Pab Cuam Tshuam Los Ntawm Txoj Cai ntawm Physics
SVS, ib lub lag luam uas tau ua haujlwm tshwj xeeb hauv subwoofers rau ntau tshaj 20 xyoo, nyuam qhuav pib ob tus qauv tshiab, $ 699 SB-2000, uas kuv nyuam qhuav rov los xyuas , thiab $ 799 PB-2000 . Ob qho tib si siv tus tshiab 500-watt RMS Class D amplifier thiab tus tsav tsheb super-beefed-up 12-inch . Thiab lawv 's xyaum ua cov ntaub ntawv kawm ua li cas tus subwoofer' s enclosure tsim radically hloov nws lub suab.
Lub SB-2000 yog ib lub qauv tsim kho, thaum lub PB-2000 raug xa tawm. PB-2000 tseem muaj ntau dua, ntawm 2.7 zaus ntawm qhov SB-2000.
Raws li tus qauv tsim, PB-2000 yuav tsum muaj lus teb tob, tab sis steeper rolloff ntawm frequencies hauv qab nws cov acoustical resonance. Ported subs yuav muaj ntau ntau tshaj li cov nram qab kawg ntawm cov leeg uas tau ntim tau ntau dua, thiab lawv yuav muaj ntau dua thiab cov zis siab dua. Txawm li cas los xij, lawv qee zaum tsis muaj cov punch thiab cov lus txhais ntawm cov khoom sib khi zoo tshaj plaws.
Li ntawd, cia saib seb qhov no loj li cas, feem ntau muaj nqis tshaj tawm rau nws tus kwv tus txheeb ze lub thawv.
02 ntawm 05
SVS PB-2000: Ntaus thiab teeb
• 12-nti woofer
• 500 watts RMS / 1,100 watts dynamic peak Class D amplifier
• RCA cov suab paj nruag thiab tawm tswv yim
• Tswj kev ntsuas 0-180 °
• 50 mus rau 160 Hz crossover zaus pob
• 3.5mm txhais tswv yim rau nws pib tig-tawm
• Qhov ntev 20.5 x 17.3 x 22 nyob rau hauv / 521 x 439 x 559 mm (hwd)
• Qe 65.6 lbs./ 29.8 kg
Muaj PB-2000's feature pob yog tib yam li cov SB-2000's. Ob leeg muab rau koj tsis zoo nkauj, tab sis kuv ntseeg hais tias yog koj txuas tus subwoofer mus rau A / V receiver, thiab siv tus neeg tuaj yeem ua crossover (hauv Circuit Route bass mus rau subwoofer thiab mids thiab treble rau hauv cov lus kaw lus ), koj yeej tsis xav tau ntau tshaj li qib tswj.
Raws li koj tau txais, lub teeb tau zoo ibyam nrog rau SB-2000. Kuv plopped tus PB-2000 hauv kuv chav "subwoofer qab zib" - qhov chaw uas kuv kuaj yuav luag txhua subwoofers - thiab txuas nrog nws cov lus LFE rau kuv tus Denon receiver subwoofer tso zis. Kuv mam li hloov lub tshuav channel thiab tau mus rau hauv kev ntsuam xyuas. Lub crossover point kuv xaiv tau 80 Hz thaum kuv paired lub PB-2000 nrog kuv Revel Performa3 F206 ntauwd tham thiab tus saib suab Radius 270 mini ntauwd lus, thiab 100 Hz thaum kuv paired lub PB-2000 nrog lub Sonance SB46 L passive soundbar
03 ntawm 05
SVS PB-2000: Kev Ua Haujlwm
Nyeem "Kuv Cov Kev Xeem Tshawb Fawb Kuv Tshaj Tawm" rau ntau tshaj info txog thiab cov qauv ntawm kuv cov khoom siv.
Los ntsuam xyuas PB-2000, kuv muab piv nrog SB-2000 thiab nrog kuv cov ntaub ntawv subwoofer, Hsu Research VTF-15H siv rau hauv kev sib khi thiab 1-chaw nres nkoj-qhib hom.
Thaum kuv ncaws tawm nrog Holly Cole's rendition of Tom Waits '"Train Song," Kuv tau hnov tam sim ntawd li cas PB-2000 txawv ntawm SB-2000. Nyob rau ntawm David Piltch tus thawj xib fwb thawj zaug, uas ua rau qee qhov kev poob siab, qhov PB-2000 ua si tsis muaj ib qho cim tseg ntawm cov khoom nyuab siab, thiab nrog ntau lub rooj zaum-shakin lub zog. Raws li Piltch tau txais ntawv sau rau hauv nws cov ntses bass thaj tsam, kiag, kuv tau hnov tias PB-2000 tsis muaj qhov nruab nrab thiab lub ntsig txog pob tw lub suab thiab Punch ntawm SB-2000.
Ste Dan Dan lub "Aja" yielded zoo li no. PB-2000 tau suab zoo thiab meej, nws tsis yog qhia txog ntau ntawm cov cim ntawm tus ntses bass thaj guitar - lub suab nrov, lub fingering subtleties, etc. Tab sis nws sounded ntau ntau txaus siab tshaj qhov SB-2000, yooj yim ua si cov ntawv sau rau ntawm qhov me me uas tau kaw qhov teeb meem me ntsis.
Rau cov khoom sib koom ua ke "Olive's Falling" - qhov xav tau hu ua SB-2000 ua tib zoo xav txog qhov loj me - PB-2000 tsis yog yug me nyuam cov ntawv, nws yuav luag zoo li qhov loj woofers nyob rau hauv ib qho zoo qws PA , nrog effortless, lub cev nqaij daim tawv zog thiab nary ib kab ntawm distortion.
Nws coj ib qho yooj yim ntawm txoj kev xeem, cov ntaubntawv povthawj ntawm Saint-Saëns 'Symphony Zauv 3 "Organ Symphony" los ntawm Boston Audio Society Test CD, kom paub PB-2000 tus txwv - txawm hais tias txawm tias nyuam qhuav raug thawb cov tawm ntawm nws txoj kev xav tau. Tus 16 Hz qis tshaj sau ntawv ua rau me ntsis ntawm distortion tab sis lub tawb ntawm lub rooj zaum co thiab ib visceral xav tias nyob rau hauv kuv kev yuav ua tau tshaj tshaj los ntawm tsuas yog lub loj tshaj plaws subs, zoo li lub Hsu VTF-15H los yog SVS tus kheej PC13-Ultra. Cov ntawv qis tshaj plaws tau tsim ntau lub tsho los ntawm qhov chaw nres nkoj, thoiugh, ib yam dab tsi uas kuv tau ntsib dua hauv kuv qhov kev xeem CEA-2010A.
Tsos tsis yog li kuv qhov tshaj plaws rau ntawm On.com Lub Stereos; uas yog xav paub ntau tshaj lub xeev ntawm About.com Tsev Kev Ua Yeeb Yam hauv tsev Robert Silva lub nplooj ntawv. Tab sis kuv tau mus tom ntej thiab muab PB-2000 lub kiv puav nrog Star Wars, Rov II: Attack ntawm lub Clones , uas pib nrog cov ntses bass thaj tsam thiab muaj zog ua ib qho chaw yob plhaw chaw yoj ua haujlwm ces cia li tawg. Tus PB-2000 kiag li nailed qhov kev kuaj no yooj yim, tuav lub ntuj raug txim tawm ntawm kuv lub rooj zaum thiab sounding yuav luag zoo li nws tau tearing heev huab cua sib nrug. Kuv zoo siab heev tias kuv sau tau rau hauv kuv cov lus, "Nov yog txhua yam kuv xav tau hauv tsev ua yeeb yam." Nco ntsoov tias kuv hais tias "... txhua yam kuv xav tau ..." vim tias kuv tsis ua si kuv nrov nrov nrov txhua lub sijhawm. Yog tias koj ua, koj yuav tsum xav txog ib qho loj subwoofer, los sis ntxiv rau qhov thib ob PB-2000.
Kuv xav tias lub PB-2000 tau zoo nkauj heev nrog kuv tus neeg hu ua Revel F206 pej thuam tham, tab sis vim nws tsis muaj kev sib sab laj, nws tsis tau xav tias nws yog ib qho zoo sib xws rau Sonance SB46 L soundbar, uas ua haujlwm zoo tshaj plaws nrog rau 100 Hz subwoofer crossover zaus. Yog hais tias koj nyob nraum mating koj cov nrog qee cov neeg tham, los yog siv nws hauv ib chav me me (hais, 2,000 cubic feet los yog tsawg dua), tus SB-2000 yog ib qho zoo tshaj rau koj.
Xav tau ob lub tswv yim? Nyeem Chris Heinonen txoj kev ntsuam xyuas ntawm Reference Home Theater.
04 ntawm 05
SVS PB-2000: Kev Ntsuas
Kev Tawm Sij Hawm
17 mus 165 Hz ± 3 dB
Hla Txawj Qis Qis Tshaj Tawm
-24 dB / octave
Max Tso Tawm CEA-2010A Traditional
(1M ncov) (2M RMS)
40-63 Hz avg 119.7 dB 110.7 dB
63 Hz 120.5 dB 111.5 dB
50 Hz 119.5 dB L 110.5 dB L
40 Hz 119.1 dB L 110.1 dB L
20-31.5 Hz avg 116.3 dB 107.3 dB
31.5 Hz 118.6 dB L 109.6 dB L
25 Hz 116.6 dB L 107.6 dB L
20 Hz 112.8 dB 103.8 dB
Daim duab saum toj no sawv cev rau cov lus teb ntawm PB-2000 nrog qhov kev ntsuas crossover kom siab tshaj plaws (ntsuab cim) thiab 80 Hz (ntshav liab). Kuv ntsuas cov lus teb no los ntawm kev sib ze ntawm tus neeg tsav tsheb thiab chaw nres nkoj, ntsuas qhov chaw nres nkoj ntsuas thiab sau nrog qhov chaw nres nkoj ntsuas. Kuv cov cuab yeej yog ib qho Audiomatica Clio 10 FW suab analyzer thiab MIC-01 ntsuas microphone.
Kuv ua CEA-2010A kev ntsuam xyuas tib yam li SB-2000, siv lub Earthworks M30 ntsuas microphone, kuv M-Audio Mobile Pre USB interface thiab dawb software CEA-2010 ntsuas software tsim los ntawm Don Keele, uas sau rau ntawm Wavemetric Igor Pro scientific software pob. Kuv tau siv cov kev ntsuas no tom 2 meters cov paib tawm, tom qab ntawd lawv ua kom tiav li 1-meter sib npaug ntawm CEA-2010A cov lus tshaj tawm. Ob qhov kev ntsuas ntawm kuv tau nthuav tawm no - CEA-2010A thiab cov qauv siv tau - zoo tib yam, tab sis cov kev ntsuas ua haujlwm tau los ntawm ntau lub suab websites thiab ntau cov ntaub ntawv qhia tau tshwm sim ntawm 2-meter RMS sib npaug, uas yog -9 dB qis dua tshaj CEA-2010A. L L tom ntej ntawm qhov tshwm sim qhia tau hais tias cov zis tau hais los ntawm subwoofer tus kheej hauv circuitry (xws li, limiter), thiab tsis yog dhau qhov CEA-2010A qhov cuam tshuam qhov sib txawv. Qhov nruab nrab yog xam rau hauv lub pas dej.
Cov no yog cov khoom ntsuas zoo heev rau 12-nti, $ 799 subwoofer. Lawv poob ze -4 rau -6 dB txaj muag ntawm kuv tau ntsuas los ntawm qhov loj tshaj thiab zoo tshaj plaws subs, tab sis qhov kev ua haujlwm ntawm qhov lus teb thiab qhov tawm ntawm txhua qhov kev khiav hauj lwm yog qhov zoo tshaj plaws, thiab cov zis yog zaum li ntau ntau heev tsev ua yeeb yam tsev neeg ua yeeb yam siv tau.
Ntawm 20 Hz, txawm, nws muaj qee qhov chaw nres nkoj nrov ntawm CEA-2010A. Tej zaum koj yuav tsis hnov qhov no vim tias muaj tsawg kawg 20 Hz cov ntsiab lus hauv cov suab paj nruag thiab cov yeeb yaj kiab, tab sis nrog lub CEA-2010A 20 Hz test tone, nws suab zoo li tus ntxhw hawb pob.
05 ntawm 05
SVS PB-2000: Kawg Siv
Tus PB-2000 yog ib qho zoo kawg nkaus subwoofer. Nws txuas mus rau qhov kev ua tau zoo ntawm qhov zoo tshaj plaws subwoofers; qhov tsuas txawv koj mam li hnov yog ob peb dB tawm tsawg. Tab sis ua siab ncaj, tej zaum koj yuav tsis nco tias, tsuas yog koj yog hom uas sau cov subwoofer tag nrho lub sij hawm thiab saib tsis muaj dab tsi tiam sis kev ua yeeb yaj kiab.
Kuv xav SB-2000 me ntsis rau cov suab paj nruag, tab sis PB-2000's cov neeg ua haujlwm kom zoo rau hauv qhov qis octave ntawm tus ntses bass thaj tsam, los ntawm 20 mus rau 40 Hz, ua rau nws xaiv ntau zoo dua yog tias koj tau txais qhov chaw rau nws.