AKG Acoustics C 451 B manual Cleaning, Windscreen

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4.5 Highpass Filter

Fig. 5: Highpass filter switch.

Refer to fig. 5 above.

5.1Microphone Body

5.2Windscreen

4 Using Your Microphone

				Low-frequency rumble or
				wind noise such as air condi-
				tioning rumble, traffic noise,
				tioning rumble, traffic noise,
				structure-borne noise, etc.
				that usually pass unnoticed
				that usually pass unnoticed
				may become a clearly audible
				nuisance on a recording.
				To minimize low-frequency
				To minimize low-frequency
				noise, you can switch in the
				highpass filter. Depending on

the spectra of the wanted and unwanted signals, set the high- pass filter switch on the microphone shaft from flat (1) to a cor- ner frequency of 75 Hz (2) or 150 Hz (3). In either position, the slope of the filter is 12 dB/octave (1:4) downward.

5 Cleaning

•Use a soft cloth moistened with water to clean the surface of the microphone body .

•Wash the foam windscreen in soap suds. Do not use the windscreen before it has dried completely.

C 451 B

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Contents 451B Inhaltsverzeichnis Sicherheit und Umwelt Sicherheit Umwelt 451 BBeschreibung EinleitungSoundtool Case klein IECBeschreibung Anschluss Tomspeisung anSiehe Abb Abb Anschluss an symmetrischen EingangSymmetrischer Eingang ohnePhantomspeisung Siehe Abb SAnwendung Rückkopplung bei Beschallungsanlagen451 B Vorabschwächung Einsatzbereit ReinigungOberfläche Nem mit Wasser befeuchteten Tuch Technische Daten SpeisespannungTable of Contents Safety and Environment Safety Environment 451 BDescription Description With Phantom Power XLR input with phantom power InterfacingPower Balanced InputWith No Phantom Refer to pUsing Your Microphone Read the hints below to get the best possible resultsSwitch Refer to onPad If you are miking up an ex PreattenuationCleaning WindscreenPolar pattern Cardioid Frequency range Equivalent noise level to IEC 60268-4 A-weighted 18 dB-AFrequency Response Sommaire Sécurité et écologie Sécurité Ecologie 451 BAccessoires Fournitures Soundtool Case petitImmédiatement votre fournisseur AKG OptionnelsHz ou 150 Hz 12 dB/octave Description SuccincteNiques incontestables d’une telle construction. Le Une extrême précisionReporter à la notice de l’équipement utilisé RaccordementFantôme mentation fantôme Sans alimentation FantômeEntrée Sur une entrée asymétriqueUtilisation Réaction acoustique Dans les systèmes de sonorisation451 B Voir Préatténuation Commutateur de préatténuationNettoyage Caractéristiques techniques Courbe de fréquencesIndice Sicurezza ed ambiente SicurezzaAccessori DescrizioneDotazione Soundtool Case piccolo Zione phantom secondo IECDescrizione Vedi fig CollegamentoMicrofonico XLR Tore phantom AKG B 18 opzionale Zione phantom Vedi p IngressoAd un ingresso asimmetrico Asimmetrico Trico senza alimentaImpiego Compensato piazzando il microfono in modo idoneoDi sonorizzazione Reazione nei sistemiEs. dagli altoparlanti monitor 451 B PreattenuazionePulizia Dei bassiVerso il basso Del corpo Panno inumidito con acquaDiagramma polare Risposta in frequenzaDirettività Cardioide Risposta in frequenza Tensione di alimentazioneÍndice Seguridad y medio ambiente Seguridad Medio ambiente 451 BDescripción Filtro en 75 Hz ó 150 Hz 12 dB/octava Descripción ResumidaPonentes transitorios de señales Quier condiciónVer . Modo de empleo del aparato correspondiente ConexiónAlimentación micrófono con conectores XLR Entrada balance Ada sin alimentaciónFantasma Ver pEn sistemas de sonorización AplicacionesPlazamiento del micrófono Retroalimentación Men Desde atrás p. ej. altavoces monitorFono para cortar la retroalimentación La preatenuaciónLimpieza Tensión de alimentación Diagrama polarRespuesta de frecuencia Índice Segurança e meio ambiente Segurança Meio ambiente 451 BApresentação 451B é o famoso microfone condensador da AKG C 451EB Conexão Veja . do equipamento ao qual o microfone está ligadoNana mono Veja figBlindagem do cabo DesbalanceadaAplicação Cionamento do microfone Realimentação Em sistemas de somFrente do palco 451 B PreatenuaçãoDa carcaça Molhado em água LimpezaBaixo Alimentação elétrica Resposta de freqüência355 Pa / 145 dB SPL 10 dB de atenuação Notizen Notes Notes Note Notas Notas Notizen Notes Notes Note Notas Notas

Fig. 5: Highpass filter switch.

Refer to fig. 5 above.

5.2Windscreen

4 Using Your Microphone

To minimize low-frequency

5 Cleaning