Sennheiser EW-D SK BASE SET (Q1-6) Digital Wireless Microphone System with Bodypack, No Mic (Q1-6: 470 to 526 MHz) - 508740

Product Overview

The Sennheiser EW-D SK BASE SET (Q1-6) is a professional digital wireless microphone system operating in the 470–526 MHz UHF frequency band, pairing a lightweight SK bodypack transmitter with an intelligent diversity rackmount receiver. Designed for presenters, lecturers, clergy, and live performers who demand studio-quality audio without the complexity, this system delivers 24-bit digital audio with an industry-leading 134 dB dynamic range. Bluetooth 5.1 integration via the Sennheiser Smart Assist app enables effortless wireless setup and remote control directly from a smartphone or tablet, making professional wireless audio accessible to operators of any experience level.

Product Description

Built on the same platform as Sennheiser's premium Digital 6000 and 9000 wireless series, the EW-D SK BASE SET brings enterprise-grade RF performance to a streamlined, cost-effective package. The Q1-6 band spans 470 to 526 MHz, offering a 56 MHz wide tuning range with 2,240 available frequencies on an equidistant grid — eliminating the need for manual frequency coordination in multi-channel environments. Up to 90 transmitters can operate simultaneously within the band, making this system equally at home as a standalone solution or as part of a large-scale multi-channel deployment.

The half-rack, 1 RU receiver mounts cleanly in any standard rack enclosure and features two rear-mount removable BNC antennas for robust intelligent diversity reception. Audio output is provided via both XLR balanced and 1/4" TRS unbalanced connectors, integrating seamlessly with mixing consoles, PA systems, and broadcast chains. The OLED display gives the operator at-a-glance status at all times, while gain is adjustable from -3 to +42 dB in 3 dB steps.

The compact metal bodypack transmitter weighs just 4.2 oz (without batteries) and accepts microphone, instrument, or line-level signals via its locking 3.5 mm TRS input. Its ultrawide 134 dB dynamic range means input sensitivity adjustments are virtually never needed — simply clip it on, sync via Bluetooth, and go. The transmitter runs up to 8 hours on two AA alkaline batteries, or up to 12 hours with an optional Sennheiser rechargeable battery pack. An on-body mute switch provides discreet control without any intervention from the FOH engineer. Note: this set does not include a microphone capsule or headset — a lavalier, headset, or instrument cable with a compatible 3.5 mm locking connector is required.

Key Features

• Q1-6 Band (470–526 MHz) — Wide 56 MHz UHF tuning range keeps you clear of local interference in this commonly available spectrum.
• 24-Bit Digital Audio, 134 dB Dynamic Range — Pristine audio fidelity with no companding artifacts and no need for transmitter sensitivity adjustments.
• 2,240 Equidistant Frequencies — Automatic frequency coordination supports up to 90 simultaneous channels per band without intermodulation conflicts.
• Bluetooth 5.1 Smart Assist App — Set up, monitor, and control the entire system wirelessly from iOS or Android — no front-panel fumbling required.
• 328 ft (100 m) Line-of-Sight Range — Reliable UHF transmission covers large stages, sanctuaries, auditoriums, and conference halls.
• Intelligent Diversity Receiver — Dual-antenna diversity reception with rear-mount BNC antennas minimizes dropouts in complex RF environments.
• Half-Rack 1 RU Receiver — Rackmount hardware included; pairs with a second unit to fill a single rack space for tidy multi-channel installations.
• Dual Audio Outputs — XLR balanced + 1/4" TRS unbalanced outputs accommodate any mixing console or audio interface.
• Flexible Battery Options — 2× AA alkaline (8 hrs) or optional Sennheiser rechargeable pack (12 hrs) for all-day coverage.
• Compact, Rugged Metal Bodypack — 4.2 oz transmitter with mute switch, locking 3.5 mm input, and fixed flexible whip antenna.
• 1.9 ms System Latency — Ultra-low latency suitable for IEM monitoring mixes and live performance applications.
• No Mic Included (BASE SET) — Pairs with any compatible lavalier, headset, or instrument cable for maximum deployment flexibility.

Typical Applications

• House of worship — clergy microphone systems for pastors, worship leaders, and guest speakers
• Auditorium — presenter and lecturer wireless microphone for performing arts centers and lecture halls
• Government space — wireless audio for council chambers, courtrooms, and public hearing rooms
• Conference room — executive presenter microphone for boardrooms and training facilities

Technical Specifications

Frequently Asked Questions

Q: Does the EW-D SK BASE SET Q1-6 include a microphone?

No. The BASE SET includes only the SK bodypack transmitter and the EM-D receiver. You will need to add a compatible lavalier, headset, or instrument cable with a 3.5 mm locking connector separately.

Q: What is the difference between the Q1-6, R1-6, and R4-9 band variants?

The only difference is the UHF frequency band: Q1-6 operates from 470–526 MHz, R1-6 from 520–576 MHz, and R4-9 from 552–608 MHz. All three share identical features and performance — choose the band that is clearest in your region.

Q: How many channels can operate simultaneously?

Up to 90 EW-D transmitters can operate simultaneously within the same band, making this system highly scalable for large multi-mic deployments in auditoriums, houses of worship, or conference centers.

Q: How do I set up and coordinate frequencies?

The equidistant tuning grid means no manual intermodulation calculation is required. Simply use the Sennheiser Smart Assist app (iOS/Android) over Bluetooth to scan, assign, and sync frequencies to your bodypack automatically.

Q: Can the receiver be rackmounted?

Yes. The receiver is a half-rack 1 RU unit and includes rackmount hardware. Two units can be paired side by side to occupy a single 1 RU rack space, keeping multi-channel installations clean and organized.

Q: What battery options are available for the bodypack?

The SK bodypack runs on two standard AA alkaline batteries (approximately 8 hours) or the optional Sennheiser rechargeable battery pack (approximately 12 hours). AA batteries are included.

Q: What audio outputs does the receiver provide?

The EM-D receiver offers both an XLR 3-pin balanced output and a 1/4" TRS unbalanced output, covering the connection requirements of virtually any mixing console, audio interface, or PA system.

Q: Is the EW-D system compatible with older Sennheiser EW 100/300/500 G4 equipment?

No. The EW-D series uses a proprietary digital transmission protocol and is not cross-compatible with the analog G4 series. EW-D transmitters and receivers must be paired within the EW-D ecosystem.