Sennheiser EW-D 835-S SET Digital Wireless Handheld Microphone System with MMD 835 Capsule (Q1-6: 470 to 526 MHz) - 508750

Product Overview

The Sennheiser EW-D 835-S SET (Q1-6: 470–526 MHz) is a professional single-channel digital wireless handheld microphone system delivering 24-bit broadcast-quality audio for live performance, corporate events, houses of worship, and academic venues. This Q1-6 band configuration operates in the 470–526 MHz UHF spectrum and pairs the EW-D SKM-S handheld transmitter — loaded with the MMD 835-1-S dynamic cardioid capsule — with the rackmount EW-D EM single-channel receiver. Rooted in Sennheiser's Digital 6000 and 9000 series heritage, the system offers an equidistant tuning grid, up to 90 simultaneous channels, a 134 dB dynamic range, and 1.9 ms ultra-low latency. If the Q1-6 band fits your regional spectrum license, this is the specific SKU (508750) to order.

Product Description

The Q1-6 band (470–526 MHz) is one of Sennheiser's most widely used UHF windows for wireless microphone operation in North America and many international markets. This SKU — part number 508750 — is a fixed single-variant listing for customers who have specifically verified that the Q1-6 band is available and licensed in their operating location. All system performance characteristics are identical to the multi-variant EW-D 835-S SET listing; the Q1-6 designation simply locks the receiver and transmitter to operate within the 470–526 MHz range.

The EW-D EM rackmount receiver deploys Sennheiser's equidistant tuning grid across the full 56 MHz operating bandwidth, offering 2,240 selectable frequencies with automatic channel scanning that eliminates the need for manual intermodulation calculations. Up to 90 systems can run simultaneously in this band — ideal for large houses of worship with extensive wireless mic inventories, conference centres running multiple breakout rooms, or multi-act concert productions.

The EW-D SKM-S handheld transmitter features an all-metal body with an integrated mute switch, runs up to 12 hours on the Sennheiser rechargeable battery pack (included), and supports capsule swapping for future flexibility. The MMD 835-1-S dynamic cardioid capsule delivers clear vocal reproduction with strong off-axis rejection to minimise stage bleed and feedback. With Bluetooth-powered setup via the Smart Assist app and a true 24-bit digital signal chain, the EW-D 835-S SET Q1-6 provides the performance level of systems costing significantly more, with the simplicity of a plug-and-play setup.

Key Features

• Q1-6 Band (470–526 MHz) — Fixed to the 470–526 MHz UHF window; confirm local spectrum licensing before purchase.
• MMD 835-1-S Dynamic Cardioid Capsule — Vocal-optimised dynamic cardioid with excellent feedback rejection for loud stage environments.
• EW-D SKM-S Handheld Transmitter — Metal housing, mute switch, interchangeable capsule system; built for daily professional use.
• EW-D EM Rackmount Receiver — Half-rack 1U single-channel unit; equidistant tuning grid for automatic multi-channel coordination.
• 24-Bit Digital Audio — True uncompressed digital transmission; no analogue noise floor or companding artefacts.
• 134 dB Dynamic Range — Handles all input levels without gain adjustment, from quiet speech to peak vocal performance.
• Up to 90 Simultaneous Channels — Equidistant grid technology enables unprecedented channel density from a single receiver band.
• 2,240 Selectable Frequencies / Auto-Scan — Wide 56 MHz bandwidth with intelligent auto-scan for instant clean-channel allocation.
• 1.9 ms System Latency — Transparent low latency compatible with IEM systems and video production workflows.
• Intelligent Switching Diversity — Dual-antenna reception maintains stable dropout-free coverage up to 328 ft line of sight.
• Bluetooth Smart Assist App — Remote frequency setup, level monitoring, and battery status via iOS or Android.
• 12-Hour Transmitter Battery Life — Sennheiser rechargeable battery pack included; AA alkaline backup option available.

Typical Applications

• Live vocal performance on theatre and concert stages
• Corporate keynote presentations and town halls
• Houses of worship sermons and worship leading
• University lecture halls and classroom instruction
• Conference panels, podium speeches, and award ceremonies
• Broadcast studio interviews and talk-show productions
• Multi-channel live event and festival sound reinforcement

Technical Specifications

Frequently Asked Questions

Q: Why is there a separate Q1-6 listing in addition to the multi-variant EW-D 835-S SET listing?

This SKU (508750) is a single-variant product fixed to the Q1-6 band (470–526 MHz). It exists for customers who have confirmed their spectrum license and want to order the exact Q1-6 variant directly. The multi-variant listing also offers R1-6 and R4-9 options for those who need to compare bands before purchasing.

Q: How do I know if the Q1-6 band is legal to use in my country?

In the United States, operation in the 470–608 MHz range requires compliance with FCC Part 74 rules, and specific sub-bands may be subject to geographic coordination. Always verify your local spectrum regulations before purchasing any wireless microphone system in this frequency range.

Q: What makes the EW-D different from the EW-G4 series?

The EW-D is a true 24-bit digital system with no analogue companding, an equidistant tuning grid, and Bluetooth app control — features derived from Sennheiser's Digital 6000/9000 range. The EW-G4 uses analogue RF transmission. The EW-D delivers significantly greater dynamic range (134 dB), more simultaneous channels (90 vs. 32), and lower latency.

Q: Can I swap the MMD 835-1-S capsule for a different one?

Yes. The EW-D SKM-S handheld uses Sennheiser's standard capsule-swap platform, compatible with other MMD capsules designed for the EW-D/EW-G4 SKM system — including condensers and specialty dynamics. Verify capsule compatibility before purchasing separately.

Q: Does the EW-D EM receiver need rack ears to be rack-mounted?

The EW-D EM is a half-rack 1U unit. Rack ears (sold separately) are needed to fill a full 1U rack space or mount in pairs. The unit can also operate as a freestanding desktop receiver without any additional hardware.

Q: How does the equidistant tuning grid support 90 simultaneous channels?

By spacing all 2,240 frequencies evenly across the 56 MHz bandwidth, the equidistant grid eliminates third-order intermodulation products that would otherwise cause interference between channels. This allows auto-scan to coordinate up to 90 channels simultaneously with no manual frequency planning.

Q: Is 1.9 ms latency low enough for live IEM monitoring?

Yes. At 1.9 ms, EW-D system latency is well below audible threshold for in-ear monitoring. When combined with a wireless IEM transmitter, total round-trip latency remains transparent to performers on stage.

Q: What is included in the box with this set?

The EW-D 835-S SET Q1-6 includes: the EW-D EM receiver, the EW-D SKM-S handheld transmitter with MMD 835-1-S capsule installed, an AC/DC power adapter (11–13 VDC at 300 mA) for the receiver, a Sennheiser rechargeable battery pack for the transmitter, and documentation. Rack ears are not included.