با سلام خدمت دوستان عزیز خواستم که این مدلهای m 149TUBE . m 150TUBE neumannرومعرفی کنم که اساتید محترم بیشتر در مورد این میک ها توضیح بدن Acoustical operating principle: Pressure transducer • Directional pattern: Omnidirectional • Frequency range: 20 Hz ... 20 kHz • Sensitivity at 1 kHz into 1 kohm: 20 mV/Pa • Rated impedance: 50 ohms • Rated load impedance: 1000 ohms • Equivalent SPL CCIR 468-3: 28 dB • Equivalent SPL DIN/IEC 651: 15 dB-A • S/N ratio CCIR 468-3: 66 dB • S/N ratio DIN/IEC 651: 79 dB • Max. SPL (tube characteristic): K < 0,5 %: 114 dB, K < 5 %: 134 dB • Dynamic range (of the amplifier): K < 0,5 % *: 99 dB, K < 5 %: 119 dB • Maximum output voltage: 8 dBu • Weight: 800 g • Diameter: 78 mm • Length: 165 mm
m149 • Switchable tube microphone • Transformerless circuitry • High output level • Pressure gradient transducer with M 49 capsule • Acoustically very open wire mesh cage • Nine directional characteristics: omni, wide angle cardioid, cardioid, hypercardioid, figure 8, and one intermediate position each • 7 fold switchable low frequency roll-off • Frequency range: 20 Hz-20 kHz • Sensitivity at 1 kHz into 1 kohm: 34/47/62 mV/Pa • Rated impedance: 50 ohms • Rated load impedance: 1000 ohms • Equivalent SPL CCIR 468-3: 28/25/23* dB • Equivalent SPL DIN/IEC 651 16/13/11* dB-A • S/N ratio CCIR 468-3: 66/69/71* dB • S/N ratio DIN/IEC 651: 78/81/83* dB (* omni/cardioid/figure-8) • Typical SPL for K <0,5%: 120 dB; for K <5%: 136 dB • Maximum output voltage: 18 dBu • Dynamic range of the microphone amplifier, cardioid DIN/IEC 651 for < 0,5% THD (for < 5% THD): 101 (121) dB • Power supply is N 149 • Weight: 1.6 lbs (730 g) • Diameter: 2.76" (70 mm) • Length: 7.91" (201 mm)
