鐵三角AT8035強(qiáng)指向采訪話筒

　　超指向性電容話筒- 專為影視制作和廣播采訪(ENG/EFP)的音頻收音而設(shè)計(jì)。- 話筒長度可配合于電子新聞采集、戶外錄音和其他特別需求的使用。- 提供窄角度的超指向性能，給與遠(yuǎn)距離的收音效果。- 由話筒兩旁到后方均有抗噪音能力。- 設(shè)有高通濾波開關(guān)。- 可以使用電池或幻象供電工作。AT8035話筒需使用11V至52V幻象供電或1.5V AA電池工作，當(dāng)使用幻象電源時(shí)，可以不安裝電池。安裝電池時(shí)，旋開話筒底部的電池蓋，確認(rèn)電池的極性(跟隨電池盒內(nèi)的標(biāo)記)，放入一枚新的1.5V AA電池(極向上)，再旋回電池蓋。建議使用堿性電池，而長時(shí)間不使用時(shí)，請把電池取出。話筒的XLRM卡農(nóng)輸出端為低阻抗平衡輸出，話筒音頻信號終以卡農(nóng)公頭的2號及3號針腳輸出，而1號針腳則為地線(屏蔽)連接。輸出相位將以正相位電平設(shè)于2號針腳上。為避免出現(xiàn)相位相互抵消而失真的情況，所有話筒連接時(shí)，接線必需以1-1，2-2，3-3型式把針腳連接。內(nèi)置高通濾波電路，可輕易由平直的頻率響應(yīng)，開啟為于80Hz以下衰減的收音效果，應(yīng)用高通濾波器可減低收音環(huán)境中低頻噪聲(如外間汔車引擎聲，空調(diào)系統(tǒng)的風(fēng)聲等)，房間中的回聲及機(jī)械性的震動(dòng)聲。話筒符合RoHS規(guī)格，在構(gòu)造上不含有歐盟禁用的危害性物質(zhì)。把話筒暴露于高溫中可能導(dǎo)致輸出電平逐漸及性減弱，應(yīng)避免將話筒留在日曬的地方或長時(shí)間置于溫度超過43°C的地方，而極高濕度也應(yīng)避免。AT8035與 1 kHz 曲線相同Machida ? Tokyo ? Japan技術(shù)指標(biāo)收音頭 固定充電背板，靜電型電容式指向特性 超指向性頻率響應(yīng) 40-20,000 Hz高通濾波 80 Hz, 12 dB/octave開通靈敏度 (幻象供電)(電池)-38 dB (12.5 mV) /-39 dB (11.2 mV) 以 1V 于 1 Pa輸出阻抗 (幻象供電/電池) 250 歐姆 / 300 歐姆承受聲壓 (幻象供電/電池) 132 dB / 120 dB 聲壓,1 kHz 于 1 T.H.D.動(dòng)態(tài)范圍 (典型) (幻象供電/電池) 110 dB / 98 dB, 1 kHz 于高聲壓訊噪比 72 dB, 1 kHz 于 1 Pa電池種類 1.5V AA型 5號電池耗電/電池壽命 0.4 mA / 1200小時(shí) (堿性電池)幻像供電 直流 11 - 52V, 耗電 2mA 典型開關(guān) 平直 / 高通濾波重量 170 g外形尺寸 369.0 mm 長, 21.0 mm 直徑輸出連接器 內(nèi)置 XLRM-3針卡農(nóng)公頭附屬品 AT8405a ?"-27接頭轉(zhuǎn)軸式支架；AT8132 海棉防風(fēng)罩 "-27至?"-16轉(zhuǎn)接頭；電池；保護(hù)袋AT8035LINE GRADIENT CONDENSER MICROPHONE- Designed for video production and broadcast (ENG/EFP)audio acquisition- Length is well-suited for ENG, outdoor recording and otherspecialized uses- Provides the narrow acceptance angle desirable for longdistance sound pickup- Excellent sound rejection from the sides and rear of mic- Switchable low-frequency roll-off- Operates on battery or phantom powerThe AT8035 requires 11V to 52V DC phantom power or a 1.5VAA battery for operation. A battery need not be in place forphantom power operation.Battery installation: Unscrew the lower section of themicrophone body, just below the nameplate. Insert a fresh1.5V AA battery in the handle compartment (“ ” end up),then reassemble the microphone. Alkaline batteries arerecommended for longest life. Remove the battery duringlong-term storage.Output from the microphone’s XLRM-type connector is lowimpedance (Lo-Z) balanced. The signal appears across Pins2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot” –positive acoustic pressure produces positive voltage at Pin 2.To avoid phase cancellation and poor sound, all mic cablesmust be wired consistently: Pin 1-to-Pin 1, etc.An integral 80 Hz high-pass filter provides easy switchingfrom a flat frequency response to a low-end roll-off. The rolloff position reduces the pickup of low-frequency ambientnoise (such as traffic, air-handling systems, etc.), roomreverberation and mechanically coupled vibrations.The microphone is RoHS compliant–free from all substancesspecified in the EU directive on hazardous substances.Avoid leaving the microphone in the open sun or in areaswhere temperatures exceed 43°C for extended periods.Extremely high humidity should also be avoided. FORM No. ATGC-L0115-07-E10 dB50 100 200 500 1k 2k 5k 10k 20k8 kHz200 Hz1 kHz5 kHz0°330°300°270°240°210°180°150°120°90°60°30°Polar PatternFrequency ResponseSCALE IS 5 DECIBELS PER DIVISIONLEGENDFrequency in HertzLEGEND 12” or more on axisResponse in dBsame as 1 kHzMachida ? Tokyo ? JapanSPECIFICATIONSELEMENT Fixed-charge back platepermanently polarized condenserPOLAR PATTERN Line gradientFREQUENCY RESPONSE 40-20,000 HzLOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octaveOPEN CIRCUIT SENSITIVITY(Phantom / Battery)-38 dB (12.5 mV) re 1V at 1 Pa-39 dB (11.2 mV) re 1V at 1 PaIMPEDANCE (Phantom / Battery) 250 ohms / 300 ohmsMAXIMUM INPUT SOUND LEVEL(Phantom / Battery)132 dB / 120 dB SPL,1 kHz at 1 T.H.D.DYNAMIC RANGE (typical)(Phantom / Battery)110 dB / 98 dB,1 kHz at Max SPLSIGNAL-TO-NOISE RATIO 72 dB, 1 kHz at 1 PaPHANTOM POWER REQUIRMENTS 11 - 52V DC, 2 mA typicalBATTERY TYPE 1.5V AA/UM3BATTERY CURRENT / LIFE 0.4 mA / 1200 hrs typical (alkaline)SWITCHES Flat, roll-offWEIGHT (less cable and accessories) 170 gDIMENSIONS 369.0 mm long,21.0 mm diameterOUTPUT CONNECTOR Integral 3-pin XLRM-typeACCESSORIES FURNISHED AT8405a stand clamp for ?"-27threaded stands;AT8132 foam windscreen;?"-27 to ?"-16 threaded adap