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Sennheiser SL Rack Receiver DW-4-US – 505899

Sennheiser

Sennheiser SL Rack Receiver DW-4-US – 505899

MPN 505899 SKU 505899

The Sennheiser SL Rack Receiver DW-4-US (505899) is a half 19-inch wireless microphone receiver for video conferencing. It operates on the 1880 to 1900 MHz frequency band with 256-bit AES encryption. SmartRooms Oman provides itemised quotations for this hardware.

Warranty
5 years

Pricing

Price on request in OMR

Include in your quote
WhatsApp
Written quote usually within one business day Download datasheet (PDF)

  • Written quotation in OMR

    Pricing, availability and warranty on one document.

  • Manufacturer warranty

    Terms confirmed on your quotation.

  • All 11 governorates

    Delivered from Muscat to Dhofar.

  • Quotations in Arabic & English

    Ask for Arabic, English or both.

The product, in detail.

Weight and power

Weight
828 g
Power Consumption
350 mA
Operating Temperature
-10 to 55 °C
Operating Humidity
Up to 95% RH

Description

This stationary receiver serves as the core integration point for the SpeechLine Digital Wireless System. It features automatic interference management and speech-optimized sound profiles to ensure clarity in meeting rooms. The OLED display simplifies setup, while bi-directional communication allows adjustment of transmitter settings directly from the receiver unit.

Connectivity includes Ethernet (RJ 45) supporting both IPv4 and IPv6 networks for remote monitoring. The device supports AMX and Crestron media control protocols, enabling seamless integration into existing AV infrastructure. Audio outputs are provided via XLR 3M and two RCA ports, suitable for professional installation in Muscat, Sohar, and Salalah venues.

Security is maintained through 256-bit AES encryption, protecting audio data during transmission. The system operates within a temperature range of -10 to 55 °C and handles humidity up to 95% RH. SmartRooms Oman supplies this authorised reseller hardware with tender support, providing datasheets and compliance statements for government and corporate projects across all 11 governorates.

Ideal for: Video conferencing systems in Omani schools, universities, and ministries requiring secure wireless audio integration.

  • Frequency Management – Automatic frequency and interference management ensures reliable operation within the 1880 to 1900 MHz band.
  • Network Integration – Ethernet connectivity via RJ 45 port supports IPv4 and IPv6 protocols for remote status monitoring.
  • AV Control Protocols – Compatible with AMX and Crestron media control for centralized system management in conference rooms.
  • Secure Transmission – 256-bit AES encryption protects audio data from interference and unauthorized access during use.
  • Audio Outputs – Provides balanced XLR 3M and unbalanced RCA audio outputs for direct connection to mixing consoles or processors.
  • Display Interface – A clear OLED screen displays operational status and settings for easy local configuration and pairing.
  • Mounting Options – Designed as a half 19-inch stationary unit with options for back or front antenna mounting.

Specifications

Manufacturer specifications · confirmed on your quotation

Connectivity

Audio out
XLR 3M, 2 × RCA
Ethernet
RJ 45, IPv4 and IPv6
Connectivity Options
Wireless, Ethernet (RJ 45); XLR 3M audio out, RCA audio out × 2, RJ 45 network

Physical & warranty

Weight
828 g
Power Consumption
350 mA
Operating Temperature
-10 to 55 °C
Operating Humidity
Up to 95% RH
Warranty
5 years

Other

Type
Wireless Microphone Receiver
Key Features
Automatic interference management, speech-optimized profiles, OLED display, Ethernet (IPv4/IPv6), AMX and Crestron control, 256-bit AES, remote control, quick pairing
More Information
Frequency band: 1880 to 1900 MHz | Frequency response: 20 to 20,000 Hz | Sensitivity: Below -90 dBm | Dynamic range: Above 120 dB(A) | Signal to noise ratio: Above 90 dB(A) | THD: Typical 0.1% | Protocols: AMX and Crestron media control | Antenna: Back or front mounted, extension cables for wall mounting available | Security features: 256-bit AES encryption | Form factor: Half 19-inch, stationary | Battery: Not included

Downloads

Delivery & installation in Oman

Delivered to Muscat, Salalah, Sohar, Nizwa and every other governorate, with installation available through our partner teams. Lead time for this model is confirmed on your written quotation.

Stock held in Muscat for fast-moving models — ask for current availability.

Questions about ordering

How do I get a price?
Ask for a written quotation. Use Request pricing on any product page, WhatsApp +968 9664 1360 or email sales@smartrooms.me with the model or part number, the quantity, the delivery location in Oman and whether installation is needed. The quotation covers pricing, availability, warranty and installation options.
Do you deliver across Oman, and how long does it take?
Yes — to Muscat, Salalah, Sohar, Nizwa and the other governorates. Lead time depends on the model, quantity and configuration, so it is confirmed in writing on the quotation and again when your purchase order is acknowledged.
Do you install?
Yes. Installation is available across Oman through our partner installation teams. Its scope — mounting, cabling, positioning, commissioning and handover — is written into the quotation, so anything outside it is clear before the visit.
What warranty applies?
The manufacturer's warranty applies, with the terms confirmed on your quotation. The quotation states the warranty holder, period and service level, and we coordinate any claim with the manufacturer or its authorised service partner on your behalf.
Do you support government tenders?
Yes. We quote tender quantities and supply what a tender file needs: an itemised quotation addressed to your entity, manufacturer datasheets, technical compliance sheets, the delivery and installation scope, and a warranty statement.
Can I get the quotation in Arabic?
Yes — in Arabic, English or both. Manufacturer datasheets are usually published in English.
Is this receiver suitable for large conference halls in Nizwa?

Yes, the receiver supports automatic interference management and operates on the 1880 to 1900 MHz band. It handles humidity up to 95% RH and temperatures from -10 to 55 °C, making it suitable for varied environments in Nizwa and other governorates.

Can I control this unit via Crestron or AMX?

Yes. The device supports AMX and Crestron media control protocols. This allows you to monitor status and adjust settings remotely through your existing AV control system, ensuring efficient management of conference equipment.

Does SmartRooms Oman provide quotations for this item?

Yes. SmartRooms Oman is an authorised reseller. We provide itemised quotations in Omani Rial with VAT shown, covering hardware, delivery, and installation labour. Coverage extends from Musandam to Dhofar within one business day.

Is tender documentation available for government projects?

Yes. Our team supports government tenders with datasheets and compliance statements. Quotations are available in Arabic, English, or both, ensuring all administrative requirements for Omani ministry and corporate bids are met.

What are the audio output connections?

The receiver offers one XLR 3M balanced output and two RCA unbalanced outputs. These ports allow connection to standard professional audio equipment, ensuring compatibility with existing sound reinforcement systems in Muscat and Salalah venues.

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