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Thông số kỹ thuật

1. EM 300-500 G4 true diversity receiver

Dimensions	Approx. 202 x 212 x 43 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	Approx. 980 g
Audio output	6.3 mm jack socket (unbalanced): +12 dBu XLR socket (balanced): +18 dBu
Signal-to-noise ratio	≥ 115 dBA
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Modulation	Wideband FM
Power supply	12 V DC
Antenna connector	2 BNC sockets
Current consumption	350 mA
Adjacent channel rejection	Typically ≥ 75 dB
Intermodulation attenuation	Typically ≥ 70 dB
Receiving frequency	Max. 3520 receiving frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
RF sensitivity	< 2.5 μV for 52 dBA eff S/N
Squelch	5 to 25 dBμV in steps of 2 dB
Frequency range	AS: 520 - 558 MHz K+: 925 - 937.5 MHz JB: 806 - 810 MHz GBw: 606 - 678 MHz Gw: 558 - 626 MHz Bw: 626 - 698 MHz Cw: 718 - 790 MHz Dw: 790 - 865 MHz Aw+: 470 - 558 MHz Gw1: 558 - 608 MHz
Equalizer	Preset 1: Flat Preset 2: Low Cut (-3 dB at 180 Hz) Preset 3: Low Cut/High Boost (-3 dB at 180 Hz, +6 dB at 10 kHz) Preset 4: High Boost (+6 dB at 10 kHz)
Temperature Range	-10 °C to +55 °C
Receiver Principle	True diversity
Blocking	≥ 75 dB

2. Sennheiser SK 300 G4-RC bodypack transmitter

Dimensions	Approx. 82 x 64 x 24 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	(incl. batteries) approx. 160 g
Signal-to-noise ratio	≥ 115 dBA
RF output power	switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Operating time	Typically 8 h
Modulation	Wideband FM
Power supply	2 AA batteries, 1.5 V or BA 2015 accupack
Current consumption	at nominal voltage: typ. 180 mA with transmitter switched off: ≤ 25 µA
Input impedance	40 kΩ, unbalanced / 1 MΩ
Max. Input voltage	3 Veff
Powering	3 V battery / 2.4 V rechargeable battery
Transmission frequency	Max. 3520 frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
AF frequency response	Mic: 80 – 18,000, Hz Line: 25 – 18,000 Hz
Temperature Range	-10 °C to +55 °C
Frequency stability	≤ ±15 ppm

3. Sennheiser SL Headmic 1

Connector	3.5 mm jack plug or Sennheiser special connector (-4 variant)
Frequency response	20 to 20,000 Hz ± 3 dB
Max. sound pressure level	143 dB
Cable length	1.6 m
Weight	(without cable) approx. 7 g
Diameter	of mic capsule: 3.3 mm of boom arm: 1.1 mm
Pick-up pattern	omni-directional
Nominal impedance	1 kΩ
Min. terminating impedance	4.7 kΩ
Equivalent noise level	27 dB(A)
Power supply	4.5 to 15 V
Sensitivity	5 mV/Pa ± 3 dB
Temperature Range	Operation: -10 °C to 50 °C (14 °F to 122 °F) Storage: -20 °C to 70 °C (-4 °F to 158 °F)

Xem đầy đủ thông số kỹ thuật

I. Tính năng của bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

Best choice for your business, top of the class in education. The G4 300 Series uses the power of an increased switching bandwidth of up to 88 MHz. New frequency ranges allow to operate multi-channel setups with dozens of channels while securing reliable operation - despite digital dividend.
The powerful professional SL-HEADMIC1 is the pro’s choice for lively lectures and speeches. Its high speech intelligibility makes the headset microphone – besides its good look – absolutely reliable. Remote mute switch available for the bodypack transmitter.

Bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

Thiết bị Bộ thu và phát kèm micro không dây Sennheiser EW 300 G4-HEADMIC1-RC

EM 300-500 G4 true diversity receiver
SK 300 G4-RC bodypack transmitter
SL Headmic 1

Điểm nổi bật của bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

Easy to use, fast setup time
Integrated network port allows control, monitoring and setup via Sennheiser Control Cockpit and WSM Software
Broad range of products and existing accessories (such as microphones) allows usage in any kind of environment
Up to 88 MHz bandwidth, up to 32 channels
Increased RF output power (10/30/50 mW)
Transmission Range: up to 100 meters / 330 feet
Compatible with wireless speaker system LSP 500 PRO
RC (remote control) switch available for the bodypack transmitter

II. Thông số kĩ thuật bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC:

1. EM 300-500 G4 true diversity receiver

The EM 300-500 G4 Wireless True Diversity Receiver from Sennheiser is the latest addition to their evolution series of wireless receivers. It operates in the UHF frequency range and can be used with a companion transmitter and microphone (sold separately), as part of a wireless RF transmission system for live stage, theater, and presentation applications.

The half-rack receiver features 3250 frequencies and is tunable in 25 kHz steps. There are 20 fixed frequency banks with up to 32 compatible frequency presets and 6 user banks with up to 32 user programmable frequencies. This receiver is built with a menu-driven backlit OLED display showing current frequency, frequency bank and channel number, metering of RF level, volume level, line output level, lock status, battery status, muting function, and more.

Bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

Enclosed in a rugged metal housing, the EM 300-500 G4 receiver is equipped with a balanced XLR-3M audio output along with an unbalanced 1/4" audio output. A 1/4" headphone output with headphone volume control is provided along with an Ethernet port (RF45) for remote network-based monitoring and control, using Sennheiser's Wireless System Manager software. Two BNC-type sockets are for connecting the antennas. Finally, the half-rack receiver operates on the included 12V power supply and includes a GA3 rackmount set.

True diversity half-rack receiver in a full-metal housing with intuitive OLED display for full control
Easy and flexible wireless synchronization between transmitter and receiver via infrared
Up to 32 compatible channels
Up to 88 MHz bandwidth with 3250 selectable frequencies, fully tunable in a stable UHF range
Ethernet connection for Wireless Systems Manager (WSM) control software for advanced frequency coordination in multi-channel setups
High RF output power (up to 50mW, adjustable in three steps 10/30/50) depending on country regulations

Frequency range	AS: 520 - 558 MHz K+: 925 - 937.5 MHz JB: 806 - 810 MHz GBw: 606 - 678 MHz Gw: 558 - 626 MHz Bw: 626 - 698 MHz Cw: 718 - 790 MHz Dw: 790 - 865 MHz Aw+: 470 - 558 MHz Gw1: 558 - 608 MHz
Dimensions	Approx. 202 x 212 x 43 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	Approx. 980 g
Audio output	6.3 mm jack socket (unbalanced): +12 dBu XLR socket (balanced): +18 dBu
Signal-to-noise ratio	≥ 115 dBA
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Modulation	Wideband FM
Power supply	12 V DC
Antenna connector	2 BNC sockets
Current consumption	350 mA
Adjacent channel rejection	Typically ≥ 75 dB
Intermodulation attenuation	Typically ≥ 70 dB
Receiving frequency	Max. 3520 receiving frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
RF sensitivity	< 2.5 μV for 52 dBA eff S/N
Squelch	5 to 25 dBμV in steps of 2 dB
Equalizer	Preset 1: Flat Preset 2: Low Cut (-3 dB at 180 Hz) Preset 3: Low Cut/High Boost (-3 dB at 180 Hz, +6 dB at 10 kHz) Preset 4: High Boost (+6 dB at 10 kHz)
Temperature Range	-10 °C to +55 °C
Receiver Principle	True diversity
Blocking	≥ 75 dB

2. Sennheiser SK 300 G4-RC bodypack transmitter

The SK 300 G4-RC Bodypack Transmitter from Sennheiser features 3520 UHF frequencies in 25 MHz steps and is built with 20 fixed frequency banks, 32 frequency presets, and 6 user banks with up to 32 user programmable frequencies. It can be used to capture audio when paired with a companion receiver and microphone in various environments for broadcast TV, ENG, and field applications.

Bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

The transmitter is menu-driven with a backlit LCD display showing the current frequency, frequency bank, channel number, metering of output level, transmission status, battery status, and more. An auto-lock feature prevents settings from being accidentally altered. The transmitter can be synchronized via an integrated infrared interface and is programmable in the bodypack transmitter menu. Power is supplied by two 1.5V AA batteries or by a Sennheiser BA 2015 rechargeable accupack. The unit is enclosed in a rugged metal housing and is equipped with a 2.5mm jack to connect a remote mute switch. A 3.5mm jack socket is featured for the mic/line inputs.

Robust bodypack transmitter for use with any Sennheiser headmic or lavalier microphone
Easy to use, fast setup time
Integrated network port allows control, monitoring, and setup via Sennheiser Control Cockpit and WSM software
Broad range of products and existing accessories (such as microphones) allows usage in any kind of environment
Up to 88 MHz bandwidth, up to 32 channels
Increased RF output power: 10/30/50mW
Transmission Range: up to 330 feet
RC (remote control) switch available for the bodypack transmitter

Dimensions	Approx. 82 x 64 x 24 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	(incl. batteries) approx. 160 g
Signal-to-noise ratio	≥ 115 dBA
RF output power	switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Operating time	Typically 8 h
Modulation	Wideband FM
Power supply	2 AA batteries, 1.5 V or BA 2015 accupack
Current consumption	at nominal voltage: typ. 180 mA with transmitter switched off: ≤ 25 µA
Input impedance	40 kΩ, unbalanced / 1 MΩ
Max. Input voltage	3 Veff
Powering	3 V battery / 2.4 V rechargeable battery
Transmission frequency	Max. 3520 frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
AF frequency response	Mic: 80 – 18,000, Hz Line: 25 – 18,000 Hz
Temperature Range	-10 °C to +55 °C
Frequency stability	≤ ±15 ppm

3. Sennheiser SL Headmic 1

Bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

The black SpeechLine Digital Wireless SL Headmic 1 BK from Sennheiser is an unobtrusive and comfortable-to-use headworn microphone, with an omnidirectional MKE 1 microphone capsule that terminates with a 5.2' cable and a 1/8" locking mini-jack connector. It can be used when paired with a wireless transmitter to capture audio in speech and presentation applications such as meetings, conferences, lectures, and more. Extremely lightweight, the adjustable neckband makes it convenient to fit all head sizes. The metal frame is sturdy and durable for long-term use. Furthermore, the SL Headmic 1 comes with a sleek soft case, which can also hold an optional bodypack transmitter.

Connector	3.5 mm jack plug or Sennheiser special connector (-4 variant)
Frequency response	20 to 20,000 Hz ± 3 dB
Max. sound pressure level	143 dB
Cable length	1.6 m
Weight	(without cable) approx. 7 g
Diameter	of mic capsule: 3.3 mm of boom arm: 1.1 mm
Pick-up pattern	omni-directional
Nominal impedance	1 kΩ
Min. terminating impedance	4.7 kΩ
Equivalent noise level	27 dB(A)
Power supply	4.5 to 15 V
Sensitivity	5 mV/Pa ± 3 dB
Temperature Range	Operation: -10 °C to 50 °C (14 °F to 122 °F) Storage: -20 °C to 70 °C (-4 °F to 158 °F)

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Đánh giá Bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

Đánh giá:

Thông số kỹ thuật

1. EM 300-500 G4 true diversity receiver

Dimensions	Approx. 202 x 212 x 43 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	Approx. 980 g
Audio output	6.3 mm jack socket (unbalanced): +12 dBu XLR socket (balanced): +18 dBu
Signal-to-noise ratio	≥ 115 dBA
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Modulation	Wideband FM
Power supply	12 V DC
Antenna connector	2 BNC sockets
Current consumption	350 mA
Adjacent channel rejection	Typically ≥ 75 dB
Intermodulation attenuation	Typically ≥ 70 dB
Receiving frequency	Max. 3520 receiving frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
RF sensitivity	< 2.5 μV for 52 dBA eff S/N
Squelch	5 to 25 dBμV in steps of 2 dB
Frequency range	AS: 520 - 558 MHz K+: 925 - 937.5 MHz JB: 806 - 810 MHz GBw: 606 - 678 MHz Gw: 558 - 626 MHz Bw: 626 - 698 MHz Cw: 718 - 790 MHz Dw: 790 - 865 MHz Aw+: 470 - 558 MHz Gw1: 558 - 608 MHz
Equalizer	Preset 1: Flat Preset 2: Low Cut (-3 dB at 180 Hz) Preset 3: Low Cut/High Boost (-3 dB at 180 Hz, +6 dB at 10 kHz) Preset 4: High Boost (+6 dB at 10 kHz)
Temperature Range	-10 °C to +55 °C
Receiver Principle	True diversity
Blocking	≥ 75 dB

2. Sennheiser SK 300 G4-RC bodypack transmitter

Dimensions	Approx. 82 x 64 x 24 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	(incl. batteries) approx. 160 g
Signal-to-noise ratio	≥ 115 dBA
RF output power	switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Operating time	Typically 8 h
Modulation	Wideband FM
Power supply	2 AA batteries, 1.5 V or BA 2015 accupack
Current consumption	at nominal voltage: typ. 180 mA with transmitter switched off: ≤ 25 µA
Input impedance	40 kΩ, unbalanced / 1 MΩ
Max. Input voltage	3 Veff
Powering	3 V battery / 2.4 V rechargeable battery
Transmission frequency	Max. 3520 frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
AF frequency response	Mic: 80 – 18,000, Hz Line: 25 – 18,000 Hz
Temperature Range	-10 °C to +55 °C
Frequency stability	≤ ±15 ppm

3. Sennheiser SL Headmic 1

Connector	3.5 mm jack plug or Sennheiser special connector (-4 variant)
Frequency response	20 to 20,000 Hz ± 3 dB
Max. sound pressure level	143 dB
Cable length	1.6 m
Weight	(without cable) approx. 7 g
Diameter	of mic capsule: 3.3 mm of boom arm: 1.1 mm
Pick-up pattern	omni-directional
Nominal impedance	1 kΩ
Min. terminating impedance	4.7 kΩ
Equivalent noise level	27 dB(A)
Power supply	4.5 to 15 V
Sensitivity	5 mV/Pa ± 3 dB
Temperature Range	Operation: -10 °C to 50 °C (14 °F to 122 °F) Storage: -20 °C to 70 °C (-4 °F to 158 °F)

Xem đầy đủ thông số kỹ thuật

Thông số kỹ thuật chi tiết Bộ thu và phát kèm micro Sennheiser EW 300 G4-HEADMIC1-RC

1. EM 300-500 G4 true diversity receiver

Dimensions	Approx. 202 x 212 x 43 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	Approx. 980 g
Audio output	6.3 mm jack socket (unbalanced): +12 dBu XLR socket (balanced): +18 dBu
Signal-to-noise ratio	≥ 115 dBA
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Modulation	Wideband FM
Power supply	12 V DC
Antenna connector	2 BNC sockets
Current consumption	350 mA
Adjacent channel rejection	Typically ≥ 75 dB
Intermodulation attenuation	Typically ≥ 70 dB
Receiving frequency	Max. 3520 receiving frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
RF sensitivity	< 2.5 μV for 52 dBA eff S/N
Squelch	5 to 25 dBμV in steps of 2 dB
Frequency range	AS: 520 - 558 MHz K+: 925 - 937.5 MHz JB: 806 - 810 MHz GBw: 606 - 678 MHz Gw: 558 - 626 MHz Bw: 626 - 698 MHz Cw: 718 - 790 MHz Dw: 790 - 865 MHz Aw+: 470 - 558 MHz Gw1: 558 - 608 MHz
Equalizer	Preset 1: Flat Preset 2: Low Cut (-3 dB at 180 Hz) Preset 3: Low Cut/High Boost (-3 dB at 180 Hz, +6 dB at 10 kHz) Preset 4: High Boost (+6 dB at 10 kHz)
Temperature Range	-10 °C to +55 °C
Receiver Principle	True diversity
Blocking	≥ 75 dB

2. Sennheiser SK 300 G4-RC bodypack transmitter

Dimensions	Approx. 82 x 64 x 24 mm
Compander	Sennheiser HDX
THD, total harmonic distortion	≤ 0.9 %
Weight	(incl. batteries) approx. 160 g
Signal-to-noise ratio	≥ 115 dBA
RF output power	switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW
Switching bandwidth	up to 88 MHz
Peak deviation	±48 kHz
Nominal deviation	±24 kHz
Operating time	Typically 8 h
Modulation	Wideband FM
Power supply	2 AA batteries, 1.5 V or BA 2015 accupack
Current consumption	at nominal voltage: typ. 180 mA with transmitter switched off: ≤ 25 µA
Input impedance	40 kΩ, unbalanced / 1 MΩ
Max. Input voltage	3 Veff
Powering	3 V battery / 2.4 V rechargeable battery
Transmission frequency	Max. 3520 frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
AF frequency response	Mic: 80 – 18,000, Hz Line: 25 – 18,000 Hz
Temperature Range	-10 °C to +55 °C
Frequency stability	≤ ±15 ppm

3. Sennheiser SL Headmic 1

Connector	3.5 mm jack plug or Sennheiser special connector (-4 variant)
Frequency response	20 to 20,000 Hz ± 3 dB
Max. sound pressure level	143 dB
Cable length	1.6 m
Weight	(without cable) approx. 7 g
Diameter	of mic capsule: 3.3 mm of boom arm: 1.1 mm
Pick-up pattern	omni-directional
Nominal impedance	1 kΩ
Min. terminating impedance	4.7 kΩ
Equivalent noise level	27 dB(A)
Power supply	4.5 to 15 V
Sensitivity	5 mV/Pa ± 3 dB
Temperature Range	Operation: -10 °C to 50 °C (14 °F to 122 °F) Storage: -20 °C to 70 °C (-4 °F to 158 °F)