发送询价
概述：P631由三路ICP供电麦克风前置放大器与一路后级放大器组成，可直接接驳各类音频分析测量系统，完成、耳机、微型喇叭的声学参数测。
PRODUCT DESCRIPT ION
The microphone preamplifier P631 has been designed to match CPIˊs microphone
M620FA, M620FB, M620FS and M620PA. It also can match artifical mouth M610C with a one way post-amplifier. P631 power supply the microphone connected to its input with an 8.2V and 24V phantom supply and adds a selectable weighting filter (A ); also available there is a 20 dB gain stage.
The Power Amplifier is designed to fulfil the needs of an electro-acoustical analyzer to amplify audio.Using the Power Amplifier for frequency response measurements acts as 25W power amplifier to drive the speaker or artifical mouth.
MICROPHONE PREAMPLIFIER
TECHNICAL SPECIFICATIONS：
FREQUENCY RESPONSE: 7Hz÷110kHz (-3dB)
THD (@1kHz): 0.01%
WEIGHTING FILTERS: A (IEC 651 - TYPE I)
INPUT NOISE (@20dBGain): 7uV LIN, 5.3uV A
PHANTOM POWER SUPPLY: 8.2V ，24V(5600 Ohm)
DRIVE CAPABILITY: ±7mA
GAIN : 0 & 20dB
INPUT IMPEDANCE: 5600 Ohm
OUTPUT IMPEDANCE: 100 Ohm
SIZE: 210×143×69mm
MAXIMUM OUTPUT VOLTAGE (@1kHz): 5 Vpp
POWER AMPLIFIER
TECHNICAL SPECIFICATIONS：
OUT POWER: 50W(8Ohm)
FREQUENCY RESPONSE: 20Hz÷110kHz (-1dB)
THD (@1 kHz): 0.004%