Shure PG 81
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Descrizione
Il PG81 è un microfono sensibile, con una risposta piatta ideale per la ripresa di strumenti acustici quali chitarre acustiche, piatti, pianoforti, archi, legni e gruppi orchestrali.
• Risposta in frequenza lineare, ampia ed uniforme. Sensibilità uniforme su tutta la gamma di frequenza.
• Modello di ripresa polare cardioide, permette di riprendere il suono sulla parte frontale del microfono e solo parzialmente dai lati. Meno suscettibile al feedback in ambienti con alti livelli di volume.
• Capsula leggera a condensatore con un diaframma sensibile e leggero. Cattura con precisione ed in maniera lineare tutte le sfumature dei suoni.
• Capsula alimentata da una batteria AA 1.5V o dalla tensione phantom.
• Supporto antivibrazioni interno per la riduzione del rumore al maneggiamento.
• Robusta costruzione in metallo.
• Commutatore on/off .
• Cavo XLR – XLR da 4.57m, clip e borsa per il trasporto in dotazione
• Risposta in frequenza:40 – 18.000 Hz
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Scheda Tecnica
SPECIFICATIONS
Microphone Type
Condenser (electret bias)
Polar Pattern
Cardioid (unidirectional), symmetrical about axis
Frequency Response
40 to 18,000 Hz
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 relative
to pin 3 of microphone output connector
Output Impedance (at 1000 Hz)
600 Ω
Sensitivity (at 1000 Hz)
–48 dBV/Pa, (4.0 mV), 1 Pascal = 94 dB SPL
Electromagnetic Hum Sensitivity
–7 dB equivalent SPL in a 1 millioersted field (60 Hz)
Switch
Built–in On/Off switch
Recommended Input Load Impedance
800 Ω minimum
Output Clipping Level (1 kHz, 1 % THD)
2000 Ω load . –13 dBV (0.22 V) (phantom)
–17 dBV (0.14 V) (battery)
Maximum SPL
2000 Ω load .131 dB (phantom), 127 dB (battery)
Self–Noise (Equivalent SPL)
20 dB typical, A–weighted
Dynamic Range (maximum SPL, 2kΩ load, to A–weighted noise level)
111 dB (phantom); 107 dB (battery)
Signal–to–Noise Ratio
68 dB (IEC 651)* at 94 dB SPL
Power
Phantom Power
Supply Voltage .11 to 52 Vdc
Current Drain . 2.0 mA max at 52 Vdc
Maximum Exteral Voltage Applied to
Pins 2 and 3 with respect to Pin 1 .+52 Vdc
Reverse polarity protected to . 100 Vdc
Battery Power
Recommended . 1.5 V alkaline AA size (NEDA 15A)
Life . up to 10,000 hours
Connector
Three pin professional audio connector (male XLR type)
Case
Steel and brass construction with black painted finish
Environmental Conditions
This microphone operates over a temperature range of –29 to 57 degrees
Celcius (–20 to 135 degrees Fahrenheit), and at a relative humidity
of 0 to 95%.
Weight
Net – 250 g (8.8 oz) less battery
Packaged – 880 g (1 lb 15 oz)
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Directive
89/336/EEC. Meets applicable tests and performance criteria in European
Standard EN55103 (1996) parts 1 and 2, for residential (E1) and
light industrial (E2) environments.
*S/N ratio is difference between microphone output at 94 dB SPL and microphone self–noise
A–weighted.
FURNISHED ACCESSORIES
4.57 m (15ft.) Cable (XLR–XLR) . 95C2153
Microphone Clip (standard 5/8 in. –27 thread) . A25D
3/8” to 5/8” Thread Adapter . 31A1856
Padded Carrying Case . 26A16
OPTIONAL ACCESSORIES (include quantities)
7.6 m (25 ft.) Cable (XLR–XLR) . C25J
Windscreen . A3WS
Phantom Power Supply . PS1A
Isolation Mount . A53M
DIMENSIONS
24 mm
15/16 in.
189 mm
7 3/8 in.
27 mm
1 1/16 in.
