Bộ thu phát và micro không dây Shure ULXP24/Beta 87

RF Carrier Frequency Range

100 m (300 ft) under typical conditions (NOTE: Operating range depends on many variables, including RF signal absorption, reflection and interference)

Audio Frequency Range

25-15,000 Hz, ±2 dB (NOTE: Overall system frequency response depends on microphone element)

Audio Output Level

XLR connector (into 600Ω load): +8 dBV (line); -10 dBV (mic) 1/4-inch connector (into 3kΩload): +2 dBV

Impedance

3kΩ(1/4-inch phone jack) 20kΩ(XLR Line) 500Ω(XLR Mic)

Modulation

±38 kHz deviation compressor-expander system with pre- and de-emphasis

Dynamic Range

>105 dB, A-weighted

RF Sensitivity

1.26 mV for 12 dB SINAD (typical)

Image Rejection

65 dB typical

Spurious Rejection

75 dB typical

Power Requirements

14-18 Vdc (negative ground), 600 mA; external ac adapter supplied.

Operating Temperature Range

-20 to 50 C (-4 to 122 F) (NOTE: Battery characteristics may limit this range)

Overall Dimensions

ULXP4: 44 mm H x 219 mm W x 154 mm D (1 3/4 x 8 5/8 x 6 1/16 in.)

Net Weight

ULXP4: 1.02 kg (2 lbs 4 oz)

Gain Adjustment Range

25 dB (continuously adjustable)

RF Power Output

30 mW maximum (dependent on applicable country regulations)

Power Requirements

9 V alkaline battery (DURACELL® MN1604 recommended); 8.4 V optional

Battery Life

Up to 8 hours

Overall Dimensions

ULX2/58, ULX2/BETA 58: 241 mm L x 50.8 mm Dia. (9 1/2 x 2 in.)

Net Weight (without battery) U

ULX2/58, ULX2/BETA 58: 298 g (10.4 oz)

Type

Condenser (electret bias)

Frequency Response

50 to 20,000 Hz

Polar Pattern

Supercardioid

Output Level (at 1,000 Hz):

Rated at 150 ohms (100 ohms actual ± 20%); Recommended minimum load impedance: 800 ohms

Sensitivity (at 1,000 Hz)

Open Circuit Voltage: -52.5 dBV/Pa* (2.6 mV) *1 Pa = 94 dB SPL

Clipping Level (at 1,000 Hz)

1000 ohm Load: -6 dBV (0.5 V)

Maximum SPL (at 1,000 Hz):

140.5 dB (0.25% THD, 1000 ohm load)

Self-Noise

(equivalent sound pressure level; measured with true RMS voltmeter); 23.5 dB typical, A-weighted; 25.5 dB typical, weighted per DIN 45 405

Dynamic Range:

117 dB (maximum SPL to A-weighted noise level)

Signal-to-Noise Ratio:

70.5 dB at 94 dB SPL (IEC 651)(S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.)

Polarity

Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3

Power

Phantom Supply Requirement: 11 to 52 VDC, positive at both pins 2 and 3; Current Drain: 1.0 to 1.2 mA

Connector

Three-pin (XLR) professional audio