SKU: 91283784679

Sennheiser 509150 XS Wireless In Ear Monitoring System (K:925.2-937.3 MHz)

Sale price$350.55 Regular price$389.50
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Description

Sennheiser 509150 XS Wireless In Ear Monitoring System (K:925.2-937.3 MHz)The XS Wireless IEM set includes everything you need for an easy start with personal monitoring. Defining new standards for simple, flexible, and reliable wireless in ear monitoring, this system is designed to help you level up your sound, regardless of your tech experience. Whether a rehearsal or live performance, on a club stage or for a worship service: Benefit from renowned Sennheiser sound and solid pro grade wireless UHF reliability packed in a

The XS Wireless IEM set includes everything you need for an easy start with personal monitoring. Defining new standards for simple, flexible, and reliable wireless in-ear monitoring, this system is designed to help you level up your sound, regardless of your tech experience. Whether a rehearsal or live performance, on a club stage or for a worship service: Benefit from renowned Sennheiser sound and solid pro-grade wireless UHF reliability packed in a convenient and rugged system – letting you focus on playing your best.

Out of the box, the XS Wireless IEM set has all the components you need to set up your personal monitoring in minutes. XS Wireless IEM is the entry to Sennheiser’s renowned in-ear monitoring sound. It delivers the whole potential of in-ear monitoring with an elegant, easy-to-use interface. No tech expertise is needed to get all the benefits: You hear yourself perfectly in any environment and can aim for new levels of perfection. The system includes a rugged transmitter, a lightweight bodypack receiver, IE 4 in-ear starter headphones, batteries, a power supply with multi-voltage adapter, and a rack mount kit for the transmitter. Eight pre-configured frequency banks in the professional UHF range (with 12 perfectly aligned channels each) keep your connection reliable and clear in every situation. Standard and advanced features make XS Wireless IEM flexible in both small and large applications. The series scales with your demands during rehearsals or live shows, on a club stage or for a worship service. Multiple audio modes match varying performances and mixing demands. You can easily change to mono, stereo, or a two-channel focus mode. The stereo receiver bodypack, although lightweight, is designed with live stages in mind. Setting options are well secured behind a stage-proof panel. A status LED keeps you informed about battery and connection status, while the LC display offers access to further settings. You can fine-tune your preferred focus mode for in-ear monitoring, balance your mix, switch the EQ to enhance the higher frequencies, or select your channel or a manual frequency. The stereo transmitter comes with a rugged metal housing. Fine-tuning the most important options has never been easier. Whether you want to increase gain, check the frequency setup, or sync some more receivers for your band setup: It all needs fewer clicks than the count-in of your drummer. A rack mount kit and a removable antenna allow for flexible setups and configurations. The set also includes a pair of IE 4 in-ear headphones. They reproduce outstanding sound quality and high dynamics, and are equipped with exchangeable ear sleeves to give a secure and comfortable fit. You get a good isolation from environmental noise as well as a very good bass response.

Features

  • Complete set – includes all components needed to start with wireless in-ear monitoring
  • Reliable, easy-to-manage wireless connection in the professional UHF range
  • Multiple audio modes for varying setups or performances and unique mixing options
  • Focus mode allows the ability to prioritize one input over another directly from the bodypack receiver for a user-specific monitoring experience
  • Advanced features like EQ and limiter
  • Perfectly aligned frequency presets in 8 banks with 12 channels each – option for manual tuning
  • An unlimited number of receivers can be used with one transmitter, allowing for cost-effective setups
  • Infrared sensor to sync multiple receivers easily to one transmitter
  • Color: Black

Specifications

XSW IEM SR - Stereo Transmitter

RF characteristics

  • Modulation FM stereo
  • Frequency ranges (max. RF output power) K: 925.2 - 937.3 MHz (10 mW)
  • Switching bandwidth up to 24 MHz
  • Nominal/peak deviation ±15 kHz / ±24 kHz
  • Antenna output BNC socket, 50 Ω

AF characteristics

  • AF frequency response 45 Hz to 15 kHz
  • AF input  nBAL AF IN L (I) + MONO/ BAL AF IN R (II): 2x XLR-3/¼" (6.3 mm) jack
  • combo socket, electronically balanced
  • Total harmonic distortion  (THD) <0.9 %
  • Signal-to-noise ratio  (at nominal load and peak deviation) ≥88 dB

Overall device

  • Temperature range 0 °C to +40 °C
  • Input rating +12 V DC
  • Current consumption Approx. 400mA (depending on volume level)
  • Dimensions Approx. 200 x 128 x 42 mm
  • Weight Approx. 700 g

XSW IEM EK - Stereo Receiver

RF characteristics

  • Modulation Wideband FM
  • Frequency ranges K: 925.2 - 937.3 MHz
  • Switching bandwidth up to 24 MHz
  • Nominal/peak deviation ±15 kHz / ±24 kHz
  • Squelch 10 µV, fixed

AF characteristics

  • Signal-to-noise ratio (1  mV, peak deviation) ≥88 dB 
  • Total harmonic distortion  (THD) ≤ 1 %
  • AF output level at 3.5 mm 2 x 1,25 Veff at 16 
  • High Boost (EQ) +10 dB at 13 kHz
  • Limiter -10 dB
  • AF frequency response 45 Hz to 15 kHz
  • Cross talk (50 Hz - 10 kHz) typically 45 dB

Overall device

  • Temperature range 0 °C to +40 °C
  • Power supply 2 AA batteries, 1.5  V 
  • Nominal voltage 3  V battery
  • Operating time Approx. 6 hrs
  • (depending on volume level)
  • Dimensions Approx. 95 x 70 x 26 mm
  • Weight (incl. batteries) Approx. 110 g

IE 4 - In-ear headphones

  • Transducer dynamic
  • Frequency response 40-20.000 Hz
  • SPL (1 kHz, 1 mW) 106 dB
  • Nominal impedance 6 Ω
  • Cable length 1.4 m
  • Connector 3.5 mm (1/8“) stereo plug, gold-plated
  • Temperature –5 °C (23 °F) to +50 °C (122 °F)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 91283784679

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4.8 ★★★★★
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A
Verified Purchase
Ashely Reilley
Boise, US
★★★★★ 1
A Catastrophic Failure in Diaper Form
Size: Size 2 (184 Count)
I’m not sure if I just got a bad batch or if these diapers are always this horrendous, but I will not spend another dime to find out—and I strongly urge you to do the same. I loved this brand’s Gentle version. They were everything you want in a diaper: super absorbent, well-fitted, no blowouts. I was their biggest fan. So, when the Gentles weren’t available, I thought, Surely the Plush will be just as good, maybe even better! I have never been more wrong. Let’s start with the tabs. These things are folded up like some kind of sick joke, requiring you to unfold them in three separate, precise movements. Miss a step? The tab rips off in your hand, leaving you holding a now-worthless scrap of disappointment. This happened to me. It happened to my mother. It will happen to you. But wait, there’s more! The side wings are a disaster. The right wing is disproportionately longer than the left, which means everything in this diaper is permanently listing to the right like a sinking ship. The left side? Practically non-existent. As a result, I have experienced more blowouts with these diapers than in my daughter’s entire life combined. I don’t know what sorcery was used to engineer a diaper that actively funnels poop toward the worst possible escape route, but here we are. And because I was foolishly optimistic, I bought a month’s supply. So now I'm locked in a psychological battle with my own stubbornness. I could throw them out, but that would be admitting defeat. So instead, I soldier on, knowing each diaper change is another step into madness. Please, learn from my mistake. You don’t have to live like this. Let me be your tribute, the sacrificial parent who suffered so you don’t have to. We’re already running on fumes as newborn parents—don’t make it worse by willingly subjecting yourself to these truly useless diapers that will rob you of your last remaining shreds of sanity. Save yourself. Run.
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Reviewed in the United States on February 26, 2025
B
Verified Purchase
Brianne Biggerstaff
Fort Morgan, US
★★★★★ 5
DON'T SLEEP ON THESE DIAPERS! (but your baby should)
Size: Size 3 (40 Count)
I was skeptical at first trying out the plush version of this diaper because I thought the mama bear gentle touch was just OK and you can find a better diaper for the same price point. I saw these on prime day for the same price as the gentle touch and said why not. I was very, very impressed. They are soft and flexible with a satin-like exterior; similar to the feel of a hello bello diaper. The plush version definitely feels more quality than the papery gentle touch ones. I first tested the absorbency using 12 oz of water, waited ten minutes and dabbed dabbed dabbed. Seriously NO moisture! In comparison to the gentle touch diaper that had obvious moisture after the same test. I put them to use on my baby, who just for reference is 19lbs, for an overnight and the diaper did not leak and was only damp in the morning, not wet! Amazing. She is a moderate wetter but I still think that performance is great because in comparison to gentle touch, the diaper was wet on the inside after only three hours and I had to consistently use diaper cream so rash wouldn't develop; I would have never used the gentle touch as an overnight diaper. Seriously, for .21 a diaper for size three these diapers are a steal. DONT SLEEP ON THIS DEAL, PICK UP SOME MAMA BEAR PLUSH DIAPERS!
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Reviewed in the United States on July 23, 2024
A
Verified Purchase
Annie Love
Louisville, US
★★★★★ 3
Not the Same 🤍
Size: Size 2 (184 Count)
I loved the Mama Bear size 1 diapers, so I expected the “plush” size 2s to be the same. Unfortunately, they feel completely different. These seem thinner and not quite as absorbent as the size 1 regular pack. The design is also really busy, which makes the wetness indicator harder to see at a quick glance. With babies, that little line matters more than you’d think. I’ll still finish the pack, but I’m not sure I’d repurchase this “plush” version. If you’re choosing between them, I’d recommend sticking with the regular pack instead. In comparison, Huggies still perform better than these for us. 🤍✨ They don’t hold blowouts at all but they do fit well. They’re also not stretchy. I noticed the print on my baby’s legs.
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Reviewed in the United States on March 14, 2026
G
Verified Purchase
Gabriela V Joshi
Massapequa, US
★★★★★ 5
Great cost efficient option
Size: Size 4 (36 Count)
I switched over from Millie Moon and really like these. They’re affordable, don’t have harmful additives, and are soft and gentle on my babies. Holds a significant amount and doesn’t leak even on overnight wears. I like the simple non character design as well.
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Reviewed in the United States on February 2, 2026
S
Verified Purchase
Savanna
Massapequa, US
★★★★★ 2
Every other diaper leaked
Size: Size 7 (92 Count)
I bought these diapers because they were the cheapest available to buy with a gift card my family was given. Normally I use the bulk store brands. The diapers were very hit and miss. It varies from diaper to diaper even in a pack. My son does urinate heavily but even before he would get anywhere near a “full” diaper it would leak! Leading to wet pants and messes. We’ve never had this problem with other diaper brands. Even our cloth diapers hold better than half of these did. For note he falls below the max size for these diapers by at least 5 lbs. I don’t plan on repurchasing these because of the leaking issue. Beyond that they were easy to use like any other diaper, didn’t cause diaper rash, held together, but was subpar in absorption.
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Reviewed in the United States on November 19, 2025

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