Sennheiser launches Digital 9000 system at IBC

At IBC, Sennheiser has today unveiled Digital 9000, a digital wireless system that can transmit completely uncompressed audio, artefact-free and with superb dynamics. Targeting broadcasting professionals, (musical) theatres and high-profile live audio events, Digital 9000 sets a new benchmark in digital wireless transmission. The system, which includes the EM 9046 receiver, SKM 9000 handheld and SK 9000 bodypack transmitters, and a comprehensive suite of accessories, has been meticulously designed for the highest channel counts in today’s increasingly dense frequency environment.

“This system is a masterpiece, both in the digital and the wireless realm,” said Kevin Jungk, portfolio manager for wireless microphones at Sennheiser. “It offers unprecedented sound quality and ease of use. For example, users will no longer have to calculate and circumvent intermodulation frequencies but can conveniently place their transmission frequencies in an equidistant grid.”

Ideal for the most diverse environments
The ground-breaking digital wireless system is fitted with two transmission modes to suit any need and environment. The High Definition (HD) mode will transmit entirely uncompressed, artefact-free audio, as if a high-quality cabled microphone were used. The Long Range (LR) mode has been designed for difficult transmission environments with many sources of interference. It ensures maximum range with a proprietary Sennheiser digital audio codec. “This refined codec ensures an audio quality that is superior to that of an FM system,” explained Kevin Jungk. “These two modes make Digital 9000 the most versatile digital wireless system available, and the best adapted to on-site requirements.”

Built-in ease of use
In addition to IR synchronisation between receivers and transmitters and a convenient antenna loop-through for creating larger receiving systems, Digital 9000 offers a number of unique features. First and foremost, the system does not generate any intermodulation products – the high linearity of the entire system, from transmitters to antennas and receivers, and a special transmitter design make laborious intermodulation calculation a thing of the past. Transmission frequencies can simply be set in an equally spaced grid.

The receiver also automatically measures the RF cable loss between the receiver and the booster and adjusts the gain accordingly. “This makes the RF wireless system easier to operate for users with less RF knowledge,“ said Kevin Jungk.

Optimum control – more information on the receiver
A large display with clearly laid out controls is at the heart of the EM 9046 receiver. Three display modes ensure that the RF or sound engineer has an optimum overview of important parameters in live situations and can change settings quickly via an intuitive, icon-based menu. Channels can be monitored via the headphone output, either individually or any number can be listened to combined.

The modular EM 9046 receiver is a mainframe that accommodates up to eight receivers internally. The receiver system covers the UHF range from 470 to 798 MHz (328 MHz band¬width). To easily integrate the system into an existing infrastructure, the user can choose between transformer-balanced analogue or digital AES3 audio output modules, or a mix of both.

System set-up is facilitated by a built-in graphical spectrum analyser to scan the RF landscape, and an RF level recorder for checking reception and optimising antenna positions. The receiver will also suggest the best transmission mode for the environment being worked in, and will automatically set an appropriate gain to counteract RF cable losses. The system’s antenna boosters can be controlled via the receiver, which is helpful for installations with remote antenna positions.

The multi-channel receiver and the transmitters can optionally use encrypted data transmission, with proprietary keys generated randomly. This will protect a radio link against hijacking and tapping.

The receiver stores up to ten complete system configurations so that set-ups can easily be recalled and repeated.

Powerful sound – more information on the handheld
The SKM 9000 handheld transmitter is compatible with all evolution wireless G3 and 2000 Series microphone heads, including the Neumann capsules KK 204 and KK 205. This means that an artist’s favourite sound can easily be transferred to the new system. Besides these capsules, the handheld can be fitted with four dedicated 9000 Series capsules.

“The 9000 Series would not have been complete without the sound of our most successful live capsule, and I am happy that the cardioid dynamic MD 9235 is part of our new digital system,” said Kevin Jungk. The rock ’n’ roll sound of the MD 9235 is complemented by the transparency of three permanently polarised condenser mic heads, the ME 9002 (omni), ME 9004 (cardioid) and ME 9005 (super-cardioid). The condenser heads feature a low sensitivity to pops and have extremely low handling noise due to snowflake-shaped rubber suspensions above and below the actual capsules.

The rugged SKM 9000 comes with an 88 MHz switching bandwidth, and is available in black and nickel. Command switch versions for easy communication between broadcast units or artists and their crews are also available. As the handheld transmits digitally, it does not employ a compander and is exempt from the associated noise, ensuring a cable-like purity of sound.

Versatile and lightweight – more information on the bodypack
The SK 9000 bodypack transmitter is easy to hide and easy to attach; it comes in a magnesium housing that combines maximum robustness with low weight. The transmitter can be used with any clip-on or headset mic with a 3-pin Lemo connector and has a line input for guitars or other instruments. “As the system is able to deliver cable-like audio, we have added a three-step guitar cable emulation – to round off the perfect instrument sound,” explained Kevin Jungk.

The SK 9000 is available in four different frequency ranges (88 MHz switching bandwidth); a command switch for communication between crews and artists/reporters is available as an accessory.

Selective and reliable – more information on boosters and antennas
To protect Digital 9000 against unwanted frequencies and interference, the AB 9000 antenna booster has been fitted with eight highly selective filters to allow just a specific frequency window to pass. Unwanted signals are thus blocked out before the first active component, adding to the overall excellent reliability of the system. The filter can be set manually on the booster or remotely via the antenna cable on the receiver.

The AB 9000 provides a maximum gain of 17 dB and is available as a stand-alone booster or integrated into the A 9000 omni-directional antenna and the AD 9000 directional antenna. Two booster versions (470 to 638 MHz and 630 to 798 MHz) cover the receiver’s UHF range.

Power supply – more information on batteries and chargers
The transmitters of the 9000 Series operate on environmentally friendly lithium-ion rechargeable battery packs, with a precise remaining operating time indicated on the handheld and the bodypack transmitter as well as on the receiver. The SKM 9000 is powered via the BA 60 rechargeable battery pack, which will power the transmitter for 5.5 hours. The SK 9000 bodypack is powered by the BA 61, which lasts for 6.5 hours. Operation on standard batteries is possible too.

The L 60 charger will recharge two BA 60 or BA 61 in any combination. It reaches 70% of charge in an hour and full charge after three hours, with the charging status being indicated by three-colour LEDs. Up to four chargers can be daisy-chained and powered via a single power supply unit.

Spectrum-efficient wireless
“Summing up, Digital 9000 is a meticulously designed wireless tool,” said Kevin Jungk. “Spectrum is a scarce resource, therefore every part of the system has been designed for the highest frequency efficiency. We have put much effort into allocating the largest possible data rate to the actual sound transmission, ensuring the unmatched audio performance of Digital 9000. Because audio is what it’s all about.”

Digital 9000 system overview
EM 9046 receiver mainframe
SK 9000 bodypack transmitter
SKM 9000 handheld transmitter
SKM 9000 COM handheld transmitter with command function
MD 9235 dynamic microphone head, cardioid
ME 9002 permanently polarised condenser head, omni-directional
ME 9004 permanently polarised condenser head, cardioid
ME 9005 permanently polarised condenser head, super-cardioid
AB 9000 highly selective, remote-controllable antenna booster
A 9000 omni-directional antenna with AB 9000
AD 9000 directional antenna with AB 9000
L 60 charger for transmitter battery packs
BA 60 rechargeable lithium-ion battery pack for the SKM 9000
BA 61 rechargeable lithium-ion battery pack for the SK 9000
Digital 9000 technical data System
Frequency range of RX 470 to 798 MHz
Frequency range of TX 470 to 558 MHz; 550 to 638 MHz; 630 to 718 MHz; 710 to 798 MHz
Frequency range of boosters 470 to 638 MHz; 630 to 798 MHz; each with eight selective antenna filters
Transmission high-order digital modulation
HD mode without audio compression
LR mode with SeDAC (Sennheiser Digital Audio Codec)
Audio frequency response 30 Hz to 20 kHz (3dB) with SK 9000, line in
60 Hz to 20 kHz (3 dB) with SK 9000, mic
80 Hz to 20 kHz (3 dB) with SKM 9000
Dynamic range 112 dB(A)
Latency analogue audio out: 3.2 ms
digital audio out: 3.0 ms
THD HD mode: < 0.01% (at 1 kHz)
LR mode: < 0.03% (at 1 kHz)
Receiving channels up to eight per mainframe
Receiver principle double superheterodyne
Diversity True Bit Diversity
Sensitivity HD mode: -86 dBm
LR mode -100 dBm
Audio output voltage XLR balanced, -10 dBu to +18 dBu, in steps of 1 dB (2 kohms)
Headphone output 2 x 100 mW at 32 ohms, short-circuit proof
Digital audio output AES3, XLR-3, 44.1 kHz; 48 kHz, 88.2 kHz or 96 kHz, 24 bit, externally synchronisable; 8 XLR-3 sockets and a 25-pin multicore/sub-D socket
Audio outputs can be equipped with two modules, analogue (AAO), digital (DAO) or a mix thereof
Dimensions 177 x 449 x 496 mm (without handles)
Word clock sampling rates 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz (or external synchronisation)
Handheld transmitter
Switching bandwidth 88 MHz
RF output power HD mode: 10 mW rms, 50 mW peak
LR mode: 25 mW rms, 50 mW peak
Frequency stability < 5 ppm
Tunability in steps of 25 kHz
Audio gain adjustable in steps of 3 dB from 0 dB to +62 dB (depending on microphone head)
Lower cut-off frequency adjustable (80 Hz, 100 Hz, 120 Hz)
Operating time 5.5 hrs with BA 60
Power consumption max. 960 mW
Dimensions length: 270 mm, diameter: 40 mm
Weight approx. 350 g with BA 60 rechargeable battery pack and ME 9005 microphone head
Bodypack transmitter
Switching bandwidth 88 MHz
RF output power HD mode: 10 mW rms, 50 mW peak
LR mode: 25 mW rms, 50 mW peak
Frequency stability < 5 ppm
Tunability in steps of 25 kHz
Mic/line input 3-pin Lemo socket
Audio gain mic: adjustable in steps of 3 dB from 0 dB to +42 dB
instruments: adjustable in steps of 3 dB from -6 dB to +9 dB
line:-6 dB
Input impedance mic: 22 kohms
Lower cut-off frequency mic: adjustable (60 Hz, 80 Hz, 100 Hz, 120 Hz)
Instrument cable emulation cable length adjustable in three steps
Operating time 6.5 hrs with BA 61
Power consumption max. 960 mW
Dimensions 76 x 62 x 20 mm with BA 61 battery pack
Weight approx. 147 g with BA 61 rechargeable battery pack and belt clip


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Stephanie Schmidt

Tel: +49 5130 600 1275

Аудио-эксперт Sennheiser базируется в Ведемарке, близ Гановера, и является одним из ведущих мировых производителей наушников, микрофонов и технологии беспроводной передачи звука. Компания обладает собственными заводами в Германии, Ирландии и США и представлена более, чем в 50 странах мира. Вместе с 19 дочерними предприятиями и давними торговыми партнерами компания осуществляет продажу инновационных продуктов и продвинутых аудио-решений, оптимально разработанных под нужды клиентов. Этот энтузиазм к аудио-технологиям разделяют 2 750 сотрудников компании по всему миру, работающих в семейном бизнесе, который был основан в 1945 году. Дэниэл Зеннхайзер и Д-р Андреас Зеннхайзер приняли эстафетную палочку в 2013 году, и являются уже третьим поколением, управляющим компанией. В 2015 году оборот Sennheiser Group составил 682 млн. Евро.

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