SL TS 153-S DW-7 B

What the SL TS 153-S DW-7 B is built for

The Sennheiser SL TS 153-S DW-7 B is a battery-powered wireless microphone base designed for speech. It belongs to the SpeechLine Digital Wireless family and ships with one rechargeable BA 40 battery. Its job is to capture a presenter or panel member seated at a table and send the audio wirelessly to the room system, so no cable crosses the table or the floor.

The manufacturer's data lists identical technical specifications for the DW-3, DW-4, DW-5, DW-6 and DW-7 variants. Article number 506967 is therefore the identifier to quote when ordering this model.

Audio and wireless figures that matter

Buyers comparing table microphones usually check a few numbers first. For this unit they are:

• Frequency range: EU: 1,880 to 1,900 MHz
• Audio frequency response: 75 to 20,000 Hz
• Sampling: 24 bit/48 kHz
• Signal-to-noise ratio: above 90 dB(A)
• Dynamic range: above 120 dB(A)
• Latency: 19 ms
• RF sensitivity: below -90 dBm
• Total harmonic distortion: typically 0.1 %

A 19 ms latency is worth checking when the microphone feeds a live sound system in a room where the speaker is also heard directly. The signal-to-noise and dynamic range figures describe how much background noise the signal carries, which matters in quiet boardrooms and lecture halls.

Battery, charging and remote monitoring

The included BA 40 battery is rated at 2.2 Ah and 3.6 V, and the manufacturer gives a typical operating time of 10 hours for the accupack. Dedicated battery status LEDs show the charge level, so a moderator can confirm the unit is ready before going on. Charging works wirelessly using the Qi standard or through USB, letting the facilities team choose the method that suits the room.

The unit can be monitored and controlled with Sennheiser Control Cockpit software, so an AV technician can manage it from the control software rather than at the table.

Where it fits across Qatar

A government communications team in Msheireb preparing a press briefing needs a microphone that sits on the table in front of the spokesperson without cable runs across the stage. The SL TS 153-S DW-7 B can be placed where the speakers sit, and its battery removes the cable run altogether.

At a university in Education City, a panel discussion with speakers switching between English and Arabic may move between tables in a seminar room. The base can be repositioned between sessions, and the XLR-5 socket accepts a gooseneck where a fixed arm works better.

A hotel meeting room in West Bay hosting a call with teams abroad needs the speaker's voice to reach the remote side clearly. Placing the unit close to the presenter and checking the 19 ms latency with the room system before the event helps avoid surprises on the day.

What to plan before you order

• Decide whether the room needs a gooseneck, since the MEG 14-40-L II is not in the box.
• Confirm the EU 1,880 to 1,900 MHz band suits the site before installation.
• Keep the unit in air-conditioned rooms: the operating range is 10 °C to 45 °C, with humidity up to 95 %.
• Plan a charging routine, because the kit includes one BA 40 battery.
• Check the footprint: 650 g, with height 166.7 mm, length 120 mm and width 47.9 mm.

SmartRooms Qatar supplies the SL TS 153-S DW-7 B with delivery to all 8 municipalities of Qatar, professional installation and a free site survey to check the room before you commit. Quotations usually follow within one working day. We accept purchase orders (LPOs), government tenders including Monaqasat, and payment by bank transfer, cheque or purchase order. The product is covered by the manufacturer's 2-year warranty.

To request a quote, send article number 506967 and the number of units to the SmartRooms Qatar team, and they will confirm lead time with your quotation.