Speechline Digital Wireless是一款数字无线话筒系统，适合语音和演讲使用。该系统的设计专门针对大学校园和企事业应用进行了优化处理。该系列的产品比较丰富，可以很好地适应各种不同的应用环境。我们的目标就是让IT和AV行业管理者的日常工作更为便捷高效。全新推出的Speechline Multi-Channel Receiver多通道接收机，给IT集成提供了非常好的声音解决方案。
Introducing the Multi-Channel Receiver
Secure operation With SpeechLine Digital Wireless, your confi dential conversations are encrypted with AES 256-bit and remain protected. Thanks to the IEEE 802.1X authentication, all SpeechLine Multi-Channel receivers can be easily and securely integrated into your network. The two RJ45 ports can be individually confi gured: split the control and audio to separate networks for more security or use both ports in a redundant Dante™ network for maximum reliability. Manage your Dante™ setup securely with the Dante Domain Manager™.
Seamless setup & maintenance
With Sennheiser Control Cockpit, you will always have a complete overview and control of your campus-wide setups. Time-consuming manual workflows such as checking battery levels can be completed digitally in no time. Advanced system automation eliminates the need for manual frequency and interference management. This makes SpeechLine Digital Wireless a real time and money saver.
Sennheiser Control Cockpit控制中心软件可为你提供整个校园音频系统的完整预览和远程控制。例如使用Monitoring View就能够实时监控任意房间中任意一台设备的全部相关信息。远程维护功能方便找到并解决问题，比如忘记解除静音开关等等。提示功能能够在问题出现前，例如电池电量不足时，发电子邮件或手机短信给你，从而让你有时间快速应对。
使用Speechline数字无线系统将不会再出现电池耗尽的工作失误。15个小时的电池使用时长保证了Speechline数字无线话筒能够满足日常工作中长时间使用的需求。网络充电器除了可以为话筒电池充电，还是话筒的收纳设备。Sennhesier Control Cockpit软件能够提供整个校园音频系统中所有话筒电池状态的整体信息。
Speechline数字无线系统工作在1.9GHz频段，在很多国家，这一频段都可以长期免费使用。Sennheiser Control Cockpit软件也可以免费下载使用，它可以实现对整个系统进行监管和控制的数字工作流程，帮助你减少后期维护和服务的资金投入，为你的未来扩展提供了完全开放的途径
Speechline数字无线系统可减少对设备后期维护和服务资金的投入。免费的Sennheiser Control Cockpit管理软件不仅降低了时间投入，也实现了数字化的工作流程。原先大量的人工现场操控，现在可以从网络中的任何节点进行按键触控操作。系统越大，就越能节约成本。
All Benefits at a glance
For conference rooms, the highly flexible wireless SL Boundary 114-S DW ensures best speech intelligibility and ease-of-use for all meeting participants.
对于新闻发布会的场合，Speechline数字无线系统提供了无线SL Tablestand 133-S/153-S DW桌面话筒，使用非常简单便捷。为观众提问和互动，则提供了SL Handheld DW手持话筒。
What kind of transmitters are available?
For the SpeechLine Digital Wireless Series there are 5 transmitters available:
- SL Handheld DW
- SL Bodypack DW
- SL Tablestand 133-S DW (with 3 pin XLR for gooseneck mics)
- SL Tablestand 153-S DW (with 5 pin XLR gooseneck mics)
- SL Boundary 114-S DW
How many microphones can be used in one room?
Depending on the regional regulations it is possible to get up to 20 microphones in one room. With the Multi-room option the channel number can be increased.
I want to use SpeechLine in several rooms, how can I increase the number of microphones?
For this case SpeechLine Digital Wireless offers the possibility to adjust the transmitting power. By selecting the corresponding room size it is possible to get as many mircophones in your building as needed. To get the right and secure value the "Walk Test" can support you.
Which RF frequency range is used in SpeechLine Digital Wireless?
SpeechLine Digital Wireless is using DECT range, which is well known from telephone market. Due to this fact the use of SpeechLine Digital Wireless is future proved and license free.
Do I need a license to use SpeechLine Digital Wireless?
No, the 1G9 DECT range is license free.
How big is the latency?
The latency of SpeechLine is 19 ms, which is an applicable value for speech.
How do I connect my transmitter and receiver?
To connect a transmitter to a rack receiver you have to press and hold the pair button on each device until the LED starts to blink red and green. For connecting a transmitter with a SL MCR DW press the pair button of the dedicated channel in Sennheiser Control Cockpit and press and hold the pair button at the transmitter until the LED starts to blind red and green.
Which audio outputs do I have?
To make the audio connection as easy and flexible as possible we provide several options. On the SL Rack Receiver DW we are offering XLR, TRS and phone jack as audio outputs. On the SL MCR DW all channels are available digital via DANTE and thanks to the integrated auto mixer also analog by using a 3- pin Phoenix 3.81.mm connector.
Which batteries can I use?
The transmitter have an lithium ion battery in the delivery with which a transmitter can work up to 18h (depending on the device).
How can I use more than two receivers?
For the case that more than two SL Rack Receivers DW are needed please use the AWM 2 or AWM 4 together with our combiner SL PASC 2 or SL PASC 4.
What kind of antennas are avaiable?
As remote antenna the AWM 2 and AMW 4 is recommended. You can use one receiver with the AWM 2 and two receivers with the AWM 4. Together with a combiner the number of receivers can be increased. In any case additional cables are needed.
How do I charge the transmitters?
We are offering 3 different chargers:
- CHG 2 a two bay charger for handheld and bodypack
- CHG 4N a four bay network charger for handheld and bodypack
- CHG 2W a two bay inductive charger for tablestand and boundary.
In addition the battery BA 10 (handheld) and BA 30 (body pack) can be charged via USB.
Is there a possibility to monitor SpeechLine Digital Wireless?
With the Sennheiser Control Cockpit the receiver and the CHG 4N can be monitored and controlled remotely.
Does the receiver support DHCP?
Yes, the receiver supports DHCP, Automatic IP and fixed IP. The Network mode can be adjusted in the receivers menu.
Which headsets and lavaliers can be used with SL Bodypack DW?
You can use any headset or lavalier from Sennheiser. We recommend to use the SL Headmic 1 or MKE 1.
How do I make a firmware update?
The firmware update is done via the Sennheiser Control Cockpit Software. As soon as a receiver has been upgraded to a new firmware the update of the portable transmitter will be done automatically when paired. In addition a transmitter can be upgraded via the Sennheiser Control Cockpit Software and the the CHG 4N.
What is the difference between Master and Follower receiver?
To get the maximum number of microphones it is necessary to synchronize them with each other. Therefore, a master is needed, which controls all other microphones (follower).
If you are using SL MCR DW the Master/Follower set up is done automatically.
If you are using only SL Rack Receiver DW please follow the steps below to ensure a valid Master / Follower configuration for your system:
- Prepare and connect the antennas (if needed with AMW 4 and combiner)
- Switch on one receiver and pair a transmitter. Wait until the LED at the receiver turns to green. This microphone will become the Master.
- Switch on all other receivers, while the Master receiver is still on. All other microphones will become a follower automatically.
IMPORTANT: As soon as the Master / Follower configuration has been done all receivers have to be switched on at the same time e.g. via a power strip.
Do I have any kind of security feature?
Yes, the connection of a transmitter to a receiver is always AES 256 encrypted. The SL MCR DW offers the possibility to use IEEE 802.1x authentication for secured network deployment.
What kind of antenna cables do I use?
SpeechLine Digital Wireless is using Reverse-SMA connectors due to regulatory reasons at the SL Rack Receiver DW. Sennheiser is offering RG-58 antenna cables in 1m, 5m 10m and 20m. A length higher than 20m is not recommended because the cable attenuation will be too high.
Does SpeechLine Digital Wireless supports Media Control systems?
Yes, SpeechLine Digital Wireless is using the Sennheiser Sound Protocol, which can be used for programming a media control system. Furthermore, Plug-Ins for Crestron and QSC are available.
What does "automatic Gain" mean?
SpeechLine Digital Wireless adjusts the sensitivity at the microphone automatically to the most convenient level. That means you don't have to take care about gain anymore.
How do I set up the IP address of a receiver?
The IP address can be set manually or automatically via DHCP. Furthermore, IPv6 and mDNS is supported.
How do I change the network mode at the SL MCR DW?
For changing the network modes, the Dante Controller from Audinate is needed. As soon as the SL MCR DW is selected go to the “network config” tab and select the required mode in the drop-down menu.
Is PoE daisy chained in the single cable mode?
No, PoE is not daisy chainable. For the case a second SL MCR DW an additional PoE injector is required. The audio and network data are daisy chained.
Which PoE class is used with SL MCR DW?
IEEE 802.3af Class 3.
Is it possible to use SL MCR DW and SL Rack Receiver DW in the same room?
Yes, that’s possible. We recommend switching on one SL MCR DW first to ensure, that this device become a Master. Afterwards any other Receiver can be switched on and will automatically be a Follower. Depending on the regional regulations up to 20 channels in one room can be used.
Why do I have the down mix digital and analog?
The automatic mixing of all audio channels offers the possibility to use up to 4 channels of Speechline Digital Wireless even if only one input channel is left in the DSP or audio mixer. To be as flexible as possible the down mix signal is available digital via Dante as well as analog. Due to this the integration of Speechline in existing infrastructures is very easy. The audio signal is equal on both outputs, but the level can be adjusted separately in Sennheiser Control Cockpit.
What is the maximum cable length for network cables?
The SL MCR DW is a network device and therefore the same recommendation as for any other network equipment is valid. Depending on the quality of the network cable up to 100m can be used.
Does SpeechLine support AES 67?
Yes the SL MCR DW supports AES 67. You can activate this function by using the Dante Controller. Use the AES 67 config Tab and enable AES 67. Make sure, that the RTP Multicast address prefix is the same on any device (default: 69).
Can I integrate SpeechLine Digital Wireless in my Dante Domain Manger?
Yes, the SL MCR DW is ready to use with the Dante Domain Manager.
Firmware Version 2.6.10 for SpeechLine Digital Wireless (SL Rack Receiver DW)
Firmware Version 2.6.2 for SpeechLine Digital Wireless (SL Rack Receiver DW)
Firmware Version 1.1.0 for the CHG 4N charger of the SpeechLine Digital Wireless series
Firmware Version 3.0.0 for SpeechLine Digital Wireless (SL Rack Receiver DW)
Firmware Version 3.0.1 for SpeechLine Digital Wireless (SL Multi-Channel Receiver DW)
Firmware Version 3.3.1 for SpeechLine Digital Wireless (SL Multi-Channel Receiver DW)
Firmware Version 3.3.1 for SpeechLine Digital Wireless (SL Rack Receiver DW)
Printable PDF version of the interactive system documentation of the SpeechLine Digital Wireless series.
Information on the SpeechLine Digital Wireless system and instructions on how to install and operate the components of SpeechLine Digital Wireless
Information on how to install, open and use the Sennheiser Control Cockpit software. Includes information on how to control and monitor the following Sennheiser products in the Control Cockpit: SpeechLine Digital Wireless, TeamConnect Ceiling 2, evolution wireless G3 & G4, Digital 6000.
Information on setting up SpeechLine Digital Wireless in multiple rooms or locations using the Multi-Room Mode.
Important information and recommendations on the use of antennas with the SL Rack Receiver DW of the SpeechLine Digital Wireless series
Sennheiser Sound Control Protocol - Developer's guide for SL Rack Receiver DW (Firmware 3.3.1), SL Multi-Channel Receiver DW (Firmware 3.3.1) and CHG 4N (Firmware 1.1.0) of the SpeechLine Digital Wireless series.
Online version of the printed quick guide for first steps using SpeechLine Digital Wireless. For SL Rack Receiver DW, SL Handheld DW, SL Bodypack DW
Onlive version of printed quick guide for the SpeechLine Digital Wireless products: SL Tablestand 133-S DW, SL Tablestand 153-S DW, SL Boundary 114-S DW, CHG 2W