System technical specifications

• Compatible systems per frequencyThis is how many times a sound or radio wave oscillates in one second.Read moreGo to the glossary band (up to): 20
• Selectable frequencies: 1440
• Auto Setup Features: Scan/Group Scan
• Audio Reference Companding: Yes
• Included Antennas: Remotable 1/2-wave
• Antenna Options: Yes
• Receiver Network Ability: No
• PC Control: No
• Rack Hardware: Included
• Case: Optional System Case
• Transmitter Display: Backlit LCD + Multi-color LED
• Receiver Display: LCD + LEDs
• Battery, Endurance: 9V, > 8 Std.
• Environment: Performance and professional touring

Further Technical Specs

ULXP4 Receiver:

RF Carrier FrequencyThis is how many times a sound or radio wave oscillates in one second.Read moreGo to the glossary Range*
470.000 – 865.000 MHz
*Note: Frequencies above 698.000 MHz are for use outside of the U.S. Contact your local dealer, distributor or Shure for more information.

Effective Range

100 m (300 ft.) under optimal conditions

NOTE: Actual working range depends on RF signal absorption, reflection, and interference

Audio Frequency ResponseThis is the range of frequencies, from the lowest to the highest, that a mic can pick up.Read moreGo to the glossary

25 to 15,000 Hz, ±2 dB

NOTE: Overall system frequency responseThis is the range of frequencies, from the lowest to the highest, that a mic can pick up.Read moreGo to the glossary depends on the microphone element.

*Output Level: Microphone Level = Line Level – 20 dB

Transmitter Audio Polarity

Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low impedanceThis describes how resistant an electrical circuit is to the flow of electricity passing through it.Read moreGo to the glossary output) and the tip of the high impedanceThis describes how resistant an electrical circuit is to the flow of electricity passing through it.Read moreGo to the glossary 1/4-inch output

Transmitter Gain Adjustment Range

ULX1: 25 dB

ULX2: 25 dB

Receiver Audio Output Level (±38 kHz deviation, 1 kHz tone)

XLR connector (into 600 ohm load): +3.9 dBV (line), –17 dBV (mic)

1/4 inch connector (into 3000 ohm load): –2 dBV

ImpedanceThis describes how resistant an electrical circuit is to the flow of electricity passing through it.Read moreGo to the glossary

ULX1 (input): 1 Megohm

ULXP4 (output): 50 ohms at line level; 2000 ohms at mic level

Modulation

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

RF Power Output

ULX1, ULX2: 30 mW maximum

Dynamic RangeThis is the difference between the queitest and loudest sound that a mic can pick up.Read moreGo to the glossary

>100 dB, A-weighted

RF SensitivityThis is how mich signal a microphone produces for a given amount of sound.Read moreGo to the glossary

1.26 μV for 12 dB SINAD (typical)

Image Rejection

80 dB typical

Spurious Rejection

75 dB typical

Ultimate Quieting (reference ±38 kHz deviation)

>105 dB, A-weighted

System Distortion (reference ±38 kHz deviation, 1 kHz modulation)

0.3% total harmonic distortionTotal Harmonic Distortion is a measure of how much electrical noise a device produces. Read moreGo to the glossary, typical

Power Requirements

ULX1, ULX2: 9V alkaline battery (Duracell MN1604 recommended); 8.4V Nicad optional

ULXP4: 14 - 18 Vdc (negative ground), 550 mA

Battery Life

8 to 9 hours (with 9V Duracell MN1604 alkaline battery)

Operating Temperature Range

-20° to 49° C (–4° to 120° F)

NOTE: Battery characteristics may limit this range.

Overall Dimensions

ULX1: 96.5 mm H x 67 mm W x 26.7 mm D (3.86 x 2.68 x 1.10 in.)

ULX2/58, ULX2/BETA 58: 241 mm L x 51 mm Dia. (9.5 x 2 in.)

ULX2/87, ULX2/BETA 87: 216 mm L x 51 mm Dia. (8.5 x 2 in.)

ULX4P: 43 mm H x 214 mm W x 172 mm D (1.72 in. x 8.56 in. x 6.88 in.)

Net Weight

ULX1: 79 g (2.8 oz.) without battery

ULX2/58, ULX2/BETA 58: 295 g (10.4 oz.) without battery

ULX2/87, ULX2/BETA 87: 193 g (6.8 oz.) without battery

ULXP4: 1105 g (2 lbs, 7 oz.)