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Description
Sennheiser EW-DX 835-S SET (Q1-9) Dual-Channel Digital Wireless System with Two Handheld Mics & MMD 835 CapsulesFor Two Presenters or Performers 2 Handheld Transmitters, e Ink Displays 2 MMD 835 Dynamic Cardioid Mic Capsules 2 Channel Diversity Receiver Wide 80 MHz Bandwidth, 3200 Frequencies 134 dB of Dynamic Range AES 256 Encryption, RJ45 Networking Set Up Operate from Phone via Bluetooth 12 Hour Rechargeable Battery 8 Hour AA Expandable to 269 Channels 330' Range Rigorously engineered to meet the needs of demanding professionals working in business and
- For Two Presenters or Performers
- 2 Handheld Transmitters, e-Ink Displays
- 2 MMD 835 Dynamic Cardioid Mic Capsules
- 2-Channel Diversity Receiver
- Wide 80 MHz Bandwidth, 3200 Frequencies
- 134 dB of Dynamic Range
- AES-256 Encryption, RJ45 Networking
- Set Up/Operate from Phone via Bluetooth
- 12-Hour Rechargeable Battery / 8-Hour AA
- Expandable to 269 Channels/330' Range
Rigorously engineered to meet the needs of demanding professionals working in business and educational settings, houses of worship, or on stage, the Sennheiser EW-DX 835-S SET is a dual-channel digital UHF wireless system with an impressive feature set designed to simplify your workflow while delivering uncompromising audio quality. This configuration includes a dual-channel, 1/2-rack receiver and two handheld transmitter/mics with mute switch and MMD 835 cardioid capsules.
With a remarkable 134 dB dynamic range on the transmitters, the mics can handle just about any input level you throw at them. The wide 80 MHz tuning range, intelligent switching diversity, auto-scan, equidistant tuning grid, and Link Density mode work to provide rock-solid wireless performance and massive channel counts, even in challenging RF environments. Bluetooth capabilities allow you to remotely sync components and change settings from your phone using the Smart Assist app, while Sennheiser's Control Cockpit and Wireless Systems Manager software provide computer-based control for more extensive networked setups. The EW-DX is backward-compatible with EW-D components.
Rock-Solid Wireless Audio with Professional Digital Sound & More Mic Channels
- The UHF transmission greatly enhances range (up to 330') and the wide 80 MHz bandwidth gives you the ability to find a clean channel from 3200 available frequencies.
- Intelligent Switching Diversity compares incoming signals on two independent antennas and receiver circuits to ensure optimal wireless quality. The receiver switches between antennas only during header data as to never affect the audio information.
- The equidistant tuning grid removes the need for frequency coordination and allows you to add additional transmitters and receivers for up to 134 mic channels simultaneously.
- For complex systems requiring even more mics, engage the Link Density mode for up to 269 channels on the same system.
2 Handheld Transmitters with Mute Switches, MMD 835 Capsules, and e-Ink Displays
- The two rugged, all-metal handheld transmitters are equipped with lockable mute buttons along with function buttons that allow you to control all the transmitters' settings directly from the mic.
- The MMD 835 dynamic capsules feature a cardioid polar pattern that helps minimize background noise and feedback.
- The e-Ink display helps you quickly name and identify the transmitter and allows you to see parameters, even when the unit is powered off.
- Each transmitter will operate on its included BA70 rechargeable battery for up to 12 hours. Two AA batteries will power the transmitter for up to 8 hours. Charging contacts allow for in-device battery charging with the CHG 70N (available separately).
- The interchangeable capsule design allows you to use a variety of optional dynamic and condenser mic capsules, with pickup patterns ranging from wide omnidirectional to narrow supercardioid—capsules include the MMD 845, MME 865, MMD 935, MMD 945, MMD 42, MM 435, ME 9004, MD 5235, ME 5004, and Neumann KK204 to name a few.
- Input trim controls allow you to adapt individual transmitters for group performances.
Add Functionality with Additional Transmitters, Mics, and Accessories
In addition to the handheld transmitter/mics included with this system, Sennheiser offers a number of separately additional transmitter and mic options for the EW-DX system as your needs evolve.
- The EW-DX SK bodypack transmitter is available with either a locking 3.5mm input or a 3-pin LEMO connector to accommodate a lavalier mic, headset mic, or guitar cable.
- For conferences and meetings, the EW-DX TS is a tabletop transmitter that provides a stable base for gooseneck microphones and is available with 3-pin or 5-pin XLR inputs.
To maximize the reliability of the system, consider upgrading the included antennas.
- The rear-mounted, 1/4-wave detachable antennas can be upgraded to longer, 1/2-wave dipole antennas (available separately) for added range and reliability; users can also choose an ADA UHF Active Antenna or the AWM Wallmount Antenna as well.
- For setups with multiple receivers, the EW-D ASA Splitter allows you to split and distribute a dual-antenna signal across 4 receivers for clearer reception without the intermodulation problems that can occur when multiple antennas are used.
Dual-Channel Receiver with OLED Screen & Bluetooth
- The all-metal, 1/2-rack, dual-channel EW-DX EM 2 receiver offers intuitive front-panel controls and a high-contrast OLED with meters for RF, battery status of the associated transmitter, and audio output that make setup a breeze.
- Bluetooth capabilities allow you easily sync transmitters at a distance of up to 120' away and control the receiver remotely from your smartphone using the Smart Assist app.
- The RJ45 port allows for PoE (Power over Ethernet) as well as networked control via Sennheiser's Wireless Systems Manager and Cockpit Control software.
- Balanced XLR outputs as well as unbalanced 1/4" outputs provide plenty of connection options for PA systems and recording equipment. A front headphone jack with volume control is also provided, along with an external PSU if you're not using PoE.
- A rackmounting kit is included.
System
| Wireless Technology | Digital UHF |
| Number of RF Channel Frequencies | 3200 |
| Included Transmitters | 2 x Handheld |
| Diversity | Intelligent Switching Diversity |
| RF Frequency Band | Q1-9: 470.2 to 550 MHz |
| RF Bandwidth | 80 MHz |
| Frequency Step Size | 25 kHz |
| RF Channel Scanning | Auto-Scan |
| Max Operating Range | 328.1' / 100 m (Line of Sight) |
| Max Transmitters per Band | 269 |
| Built-In Recorder | No |
| Control App Support | Yes, Available for Android/iOS |
| Bluetooth | 5.1 LE |
| Bluetooth Operating Distance | 120' / 36.6 m (Transmitter Sync, App Control) |
| Sample Rate/Resolution | 24-Bit |
| Latency | 1.9 ms |
| Dynamic Range | 134 dB |
| Encryption | AES 256 |
Receiver
| Receiver Type | Tabletop / Rackmount |
| Mounting Options | Rackmount (with Included Hardware) |
| Rackmount Size | 1 RU (1/2 Rack) |
| Antenna | 2 x 1/4 Wave Rod, BNC (Rear-Mount) |
| Number of Audio Channels | 2 |
| Audio I/O | 2 x XLR 3-Pin Male Balanced Output 2 x 1/4" TS Female Unbalanced Output |
| Audio Output Level | +18 dBu (Max) +12 dBu (Max) |
| Frequency Response | 20 Hz to 20 kHz ±3 dB |
| Network I/O | 1 x RJ45 |
| Word Clock I/O | None |
| USB/Lightning Connectivity | None |
| RF Output Power | 10 mW (EIRP) |
| Power Requirements | AC/DC Power Adapter, PoE |
| AC/DC Power Adapter | 11 to 13 VDC (Included) |
| DC Input Power | 12 VDC |
| AC Input Power | 100 to 240 VAC, 50 / 60 Hz |
| Display & Indicators | 1 x OLED (AF Level, Channel, Frequency, Output Level, RF Level, Transmitter Battery Status) |
| Housing | Metal |
| Operating Temperature | 14 to 131°F / -10 to 55°C |
| Operating Humidity | 5 to 95% |
| Dimensions | 8.3 x 1.7 x 7.4" / 212 x 44 x 189 mm |
| Weight | 2.2 lb / 1 kg (without Antenna) |
Transmitter
| Transmitter Type | Handheld |
| RF Output Power | 10 mW (ERP) 10 mW (EIRP) |
| Audio I/O | None |
| Muting | Mute Switch |
| Audio Input Level | 2 to 4.35 V |
| Auto-Level Control | No |
| Frequency Response | 20 Hz to 20 kHz -3 dB |
| Sync Method | Bluetooth |
| Antenna | 1 x Internal (Handheld) |
| Power Requirements | Battery |
| Battery Type | 1 x Sennheiser Battery Pack (Included) 2 x AA (Not Included) |
| Approx. Battery Life | 12 Hours (Sennheiser Battery Pack) 8 Hours (Alkaline) |
| Display & Indicators | 1 x Backlit LCD (Battery Status, Mute) |
| Housing | Metal |
| Operating Temperature | 14 to 131°F / -10 to 55°C |
| Operating Humidity | 5 to 95% |
| Dimensions | 2 x 10.6" / 50 x 268 mm |
| Weight | 10.7 oz / 304 g |
Microphone
| Microphone Type | Handheld Capsule |
| Color | Black |
| Sound Field | Mono |
| Capsule | Dynamic |
| Polar Pattern | Cardioid |
| Maximum SPL | 154 dB SPL |
| Sensitivity | 2.1 mV/Pa |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
It is an air filter
Fit perfect easy replacement and saves $$$.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Perfect fit for 2020 Subaru Outback
Fit my 2020 Subaru Outback perfectly. 5-minute install. Works great. My previous cabin filter was scary to see.
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Reviewed in the United States on December 16, 2025
★★★★★ 5
Good, inexpensive replacement filter
I've used these filters for a couple years (four replacements) on my Subaru Crosstrek, and they seem to do the job well, probably as well as the original. I generally remove and clean them every three months, and replace them every six.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Save some money by doing your own cabin filter change! (You won't notice a difference).
So, one day I was getting an oil change at the dealership, and the associate told me that cabin filter was pretty dirty, which I believed because of the places I take the car, and she said that they could change it while they were finishing up the rest of their inspection, since they already had it apart. I asked her "How much?", and then we both had a laugh when she said "$90." I told her I'd take care of it.
It took two days for Amazon to get a replacement filter to me, twenty minutes to watch a You Tube video showing how to replace the cabin filter on my car (I watched it twice), and then about twenty-five minutes to replace the filter itself--I keep a messy glove compartment, so a good portion of the time was loading and unloading that nightmare.
In the end, under $15 for the filter, maybe 45 minutes to watch and replace, and the cabin filter hasn't been this good since I first bought the car.
This replacement version was as good as the OE filter, fit exactly the same, there's no difference in airflow that I can tell, and so far (6 months later), it seems to be holding up pretty well. We'll see what it is like after a year. I did get the oil changed about a week ago, and the technician didn't raise any alarms about the filter, so everything seems to be working.
$90 for a new filter? You can do it yourself cheaper.
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Reviewed in the United States on April 6, 2026
★★★★★ 4
Fresh Air Upgrade for My 2024 Impreza
Installed this in my 2024 Subaru Impreza, and it fit perfectly—no issues. The air smells noticeably cleaner now, and it took less than 10 minutes to swap out. The carbon and HEPA filtration does a great job clearing out odors, dust, and pollen—definitely an upgrade over the factory filter.
The build feels sturdier than the OEM version, though it does have slightly fewer pleats. Might mean it needs replacing a bit sooner, but for the price and performance, I’m fine with that tradeoff.
If you’re looking for a quick, affordable way to improve your cabin air, this one’s a solid pick.
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Reviewed in the United States on June 26, 2025