Sennheiser SpeechLine Digital Wireless

Sennheiser SpeechLine Digital Wireless is 's werelds eerste digitale draadloze microfoon exclusief voor spraaktoepassingen, en dus de professionele keuze voor sprekers, docenten en presentatoren.
Het systeem is niet alleen uiterst betrouwbaar als gevolg van geavanceerde 256-bit AES-encryptie absoluut tap-proof - maar ook zeer makkelijk te gebruiken: SpeechLine Digital Wireless voert automatisch een on-site realtime scan bij het opstarten uit om vrije frequenties te vinden, en in het geval van transmissie storingen om naadloos om te schakelen op een ander kanaal. De automatische audioniveau besturing past het versterkingsniveau en de gevoeligheid aan voor de beste signaal-ruisverhouding. Distortion behoort nu tot het verleden.

Belangrijkste kenmerken

• Automatic Frequency, Audio Level en interferentie management
• Eenvoudige bewaking en onderhoud via "Sennheiser Controle Cockpit" software
• Optimale verstaanbaarheid ​​met verschillende audio-presets voor mannelijke / vrouwelijke stemmen
• Multi-Room Mode: instelbaar zendvermogen voor parallel gebruik van meerdere systeme

System Components

• System Type: Digital wireless microphone system optimized for speech and lecture applications.
• Transmitters: SL Handheld DW (handheld), SL Bodypack DW (bodypack), SL Tablestand DW, SL Boundary DW (various configurations available).
• Receivers: SL Rack Receiver DW (rack-mountable), SpeechLine Multi-Channel Receiver (wall/ceiling mountable).
• Microphone Options: Speech-optimized condenser microphone capsules (e.g., MME 865-1, MKE 1, SL Headmic 1, gooseneck, boundary).

Wireless Transmission

• Frequency Band: License-free 1.9 GHz (specific ranges vary by region: e.g., EU: 1880-1900 MHz, USA: 1920-1930 MHz).
• Modulation: GFSK with back channel
• Transmission Method: TDMA, Space Diversity
• Latency: 19 ms
• RF Output Power: Adaptive, up to 250 mW (country-specific)
• Encryption: AES 256-bit

Audio Performance

• AF Frequency Response (System): 20 to 20,000 Hz
• Audio Sampling: 24 bit/48 kHz
• Dynamic Range: > 120 dB(A)
• THD (1 kHz): typ. 0.1 %
• Signal-to-Noise Ratio: > 90 dB(A)
• Receiver Audio Outputs: Balanced XLR (max. +18 dBu), Unbalanced RCA (max. +6 dBu)
• Audio Effects (Receiver): Low cut (-3 dB at 120 Hz), 7-band graphic equalizer with sound presets (e.g., female voice, male voice, instrument/media)

Power & Battery

• Transmitter Power Supply: Rechargeable Lithium-Ion accupacks (e.g., BA 10, BA 30, BA 40) or 2 x AA batteries (optional accessory).
• Transmitter Operating Time: Up to 15 hours (with accupack, typical).
• Receiver Power Supply: 12 V DC (via external power supply unit) or PoE (Power over Ethernet) for Multi-Channel Receiver.
• Charging Options: Network-enabled multi-device chargers (e.g., CHG 2N, CHG 4N), wireless charging (CHG 2W for tablestand), USB charging.

Network & IT Integration

• Network Protocols: Media Control Protocol, TCP/IP IPv4 (DHCP, manual)/IPv6, mDNS (switchable).
• Interfaces: RJ-45 for Ethernet connectivity (including Dante™ digital audio network sockets on Multi-Channel Receiver), XLR, RCA, reverse SMA (antenna).
• Device Management: Remote control and monitoring via Sennheiser Control Cockpit software or media control systems (e.g., AMX, Crestron).
• Automatic Features: Automatic frequency and interference management, automatic microphone sensitivity adjustment, automatic audio level management.

Physical & Environmental

• SL Rack Receiver DW Dimensions: Approx. 168 x 212 x 43 mm (6.61" x 8.35" x 1.69")
• SL Rack Receiver DW Weight: Approx. 828 g (1.83 lbs)
• Multi-Channel Receiver Dimensions: 180 x 180 x 45 mm (7.08" x 7.08 " x 1.77") (incl. wall mount adapter)
• Operating Temperature: -10 °C to +55 °C (14 °F to 131 °F) for system, specific components may vary.
• Relative Air Humidity: max. 95 % (non-condensing)