SKU: 94095776662

Sennheiser SK 9000 B1-B4 Bodypack transmitter, digital, HD and LR mode, 3-pin SE socket, 630-718 MHz

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Description

Sennheiser SK 9000 B1-B4 Bodypack transmitter, digital, HD and LR mode, 3-pin SE socket, 630-718 MHzSennheiser SK 9000 B1 B4 Digital Wireless Bodypack Transmitter The Sennheiser SK 9000 B1 B4 is a flagship, ultra high end digital wireless pocket transmitter engineered exclusively for Sennheiser's legendary Digital 9000 broadcast and touring platform. Housed in a lightweight, magnesium alloy chassis, this bodypack is designed to deliver uncompromised audio purity, absolute spectral efficiency, and rock solid RF performance for major broadcast events,

Sennheiser SK 9000 B1-B4 Digital Wireless Bodypack Transmitter

The Sennheiser SK 9000 B1-B4 is a flagship, ultra-high-end digital wireless pocket transmitter engineered exclusively for Sennheiser's legendary Digital 9000 broadcast and touring platform. Housed in a lightweight, magnesium-alloy chassis, this bodypack is designed to deliver uncompromised audio purity, absolute spectral efficiency, and rock-solid RF performance for major broadcast events, elite musical theater productions, and high-profile international live tours.

This specific variant operates in the B1-B4 frequency band (630.000 MHz to 718.000 MHz). Boasting an agile 88 MHz switching bandwidth, it features advanced, completely intermodulation-free digital transmission technology that permits massive multi-channel counts to co-exist in highly congested RF environments.

Key Performance and Digital Transmission Attributes

  • Intermodulation-Free Linear Architecture: The SK 9000 operates linearly without creating intermodulation distortion. This permits an equidistant channel frequency grid, allowing sound engineers to line up frequencies at fixed, narrow intervals without executing complex intermodulation math or worrying about ghost frequencies.

  • Dual Transmission Modes (HD and LR): * High Definition (HD) Mode: Transmits uncompressed, completely artifact-free digital audio. It mirrors a top-tier studio cable connection with absolute dynamic fidelity, making it ideal for critical acoustic instrumentation and elite vocal applications.

    • Long Range (LR) Mode: Employs a robust, proprietary Sennheiser audio codec with advanced error correction to maximize transmission distance and cross heavy structural obstacles on massive festival stages, ensuring dropout-free performance.

  • Moisture-Resistant 3-Pin SE Socket: Outfitted with a specialized, gold-plated 3-pin special connector (LEMO style) that features a secure push-pull locking ring and internal sealing gaskets to prevent sweat, rain, or humidity from shorting out the microphone contacts mid-show.

  • Hardware AES 256 Encryption: Integrated with military-grade AES 256 digital encryption, rendering the RF signal un-scannable and completely private for corporate boardrooms, government installations, and high-security live broadcasts.

Technical Specifications Matrix

Feature Parameter Hardware Specification Profile
Model Reference Name SK 9000 B1-B4
RF Operational Band B1-B4 Block (630.000 MHz to 718.000 MHz)
Switching Tuning Bandwidth 88 MHz available across the B-band spectrum
Digital Transmission Modes High Definition (HD) Mode / Long Range (LR) Mode
System Audio Frequency Response HD Mode: 30 Hz to 20,000 Hz / LR Mode: 30 Hz to 20,000 Hz
System Dynamic Range HD Mode: 112 dBA / LR Mode: 104 dBA
Total Harmonic Distortion (THD) Less than 0.03% (at 1 kHz)
Audio Input Interface Node 3-pin Moisture-Resistant Locking Socket (Special SE LEMO Pin Out)
Audio Gain Adjustment Scale 0 dB to +62 dB (adjustable in highly precise 3 dB steps)
Integrated Low-Cut Filter Flat / Switchable: 30 Hz, 60 Hz, 80 Hz, 100 Hz, 120 Hz
RF Output Power HD Mode: 10 mW RMS / LR Mode: 25 mW RMS
Power Solution (Transmitter) Optional BA 61 Li-ion Accupack (6.5 hrs) or B 61 Dry Battery Case (3 x AA)
Physical Housing Profile Lightweight, high-impact Magnesium Alloy composite
Net Operational Weight Approx. 147 grams (including battery pack assembly)

In the Box: Component Inventory

  • 1 x SK 9000 Digital Bodypack Transmitter (Black, B1-B4 Band)

  • 1 x Heavy-Duty Belt Clip

  • 1 x Removable Flexible Whip Antenna (Tuned for the B1-B4 range)

  • 1 x Quick Start Reference Manual

  • 1 x Safety Instructions Guide

  • (Note: Battery packs and microphone capsules are sold separately)

System Deployment and Hardware Interfacing Advice

Locking the 3-Pin LEMO Audio Interface: The SK 9000 uses a premium, moisture-resistant 3-pin connector. It pairs seamlessly with high-tier lavalier microphones (such as the MKE 1, MKE 2, MKE 40) and specialized headworn boom mics (like the SL Headmic 1 or HSP series). Ensure that you push the micro-connector into the socket until the outer collar locks with a distinct physical click. Always pull directly on the knurled metal collar to disconnect—never yank on the flexible microphone wire.

Battery Architecture Warning: To maintain low operational costs and stable weight balance, the SK 9000 does not bundle power elements out of the box. You must provision either a BA 61 rechargeable lithium-ion battery pack (delivering roughly 6.5 hours of continuous transmission tracking) or a B 61 dry battery case configured to host three standard AA batteries. Ensure that you monitor real-time battery telemetry via the backlit LCD screen or remotely inside your EM 9046 receiver channel layout.

Shipping Notes
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Exchange/Return Notes
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SKU: 94095776662

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4.2 ★★★★★
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Product Reviews
J
Verified Purchase
Jeffrey T. Munson
Belleville, US
★★★★★ 5
The Island Of Death
Format: Hardcover
On August 7th, 1942, American Marines stormed ashore on Guadalcanal. What lay before them was a six-month odyssey of fighting against the best of what the Japanese had to offer. In this fine book, author Joseph Wheelan describes the battle that turned the tide in the Pacific War. The Japanese had started construction of an airfield on Guadalcanal. If completed, Japanese aircraft would be able to harass American convoys and threaten Australia. The Americans seized the airfield and eventually, planes from the Cactus Air Force began attacking the Japanese. Throughout the book, the reader learns about all phases of the Guadalcanal campaign, including the battles of Alligator Creek and Bloody Ridge. On the sea, the Americans and Japanese slugged it out at Savo Island, as well as the great naval battles of November, 1942. Names such as Chesty Puller, John Baslone, "Archie" Vandegrift, Joe Foss, and "Bull" Halsey became household names in the United States. Each side lost many men, ships, and planes, but the tenacity and, finally, the industrial might and the ability to rapidly replace losses, led the Americans to victory. Never again would the Japanese regain the offensive in the Pacific War. "Midnight in the Pacific" is a very good book, and the author has done a good job of describing all of the main points of the battle. Each chapter is broken down into a single month's worth of action, and the narrative is well-written. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2017
L
Verified Purchase
Laurence J. Rusiecki
Whiting, US
★★★★★ 4
Good Narrative History
Format: Hardcover
The account of the Guadalcanal campaign was well-written. It has several good maps but it falls short with the two carrier battles associated with the action. There should have detailed maps for the Battle of the Eastern Solomons and the Battle of the Santa Cruz Islands. Aside from this shortcoming, the book provides an excellent, readable history of a crucial confrontation between the US and Japan.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2019
D
Verified Purchase
Donald J. Hanson
Lake Worth, US
★★★★★ 5
A Very Thorough Accounting of One of the Most Savage Battles of World War 2
Format: Kindle
My father served in the United States Marine Corps during World War 2 and fought in the first offensive battle by the US during the war, the battle for the island of Guadalcanal. He was seriously wounded there and evacuated back to the states where he spent a year in a naval hospital. As a result, I have read many of the books about this battle. This book was particularly interesting because the author described the battle from the perspective of both the allied forces and the Japanese, drawing from historical records and other books. It was a very thorough accounting and demonstrated what a monstrous battle this was. I only wish my father were still alive so that I could have discussed it with him. His experience at Guadalcanal was not something he would often talk about, but considering savagery of what he saw and endured, I understand. If you are interested in Guadalcanal, I recommend this book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2017
Q
Verified Purchase
qtjudyg
Lowell, US
★★★★★ 5
Excellent book on the Campaign!
Format: Hardcover
I highly recommend this book! I have read many books on the Guadalcanal Campaign and I rate this one at the top. It has just the right blend of stragity and personal accounts to keep the story interesting. It is actually a real page-turner, which is rare for a non-fiction work. Wheelan writes in a style that reminds me of the books I read in my teens by Cornelius Ryan and John Toland, which captured my interest in WWII and history. The book jumps right into the invasion, no multiple chapters concerning the planning and build up, but this info is covered later. All phases of this campaign are covered; ground, air and sea. The maps are okay. There are never enough. The author skims over much of the U. S. Army battles after the Marines are relieved, but that seems to be a trend in all of the books on Guadalcanal that I have read. Overall, this is an excellent book for those who want to learn about the campaign and those who need a re-fresher after reading Starvation Island and Guadalcanal by Frank in years past.
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Reviewed in the United States on October 1, 2017
D
Verified Purchase
Douglas B. Schonour
Grantham, US
★★★★★ 5
Most complete coverage of Guadalcanal I have read.
Format: Kindle
I have read dozens of WWII books and many touched on the Guadalcanal Battle. I thoroughly enjoyed The Big E and its involvement in the battle. Thas book covered the entire conflict from start to finish. Frankly, I hated to see the book end. The courage and tenacity of all those involved was amazing. To understand the miserable conditions in the area where these men fought was inspiring. To see this battle through the eyes of the American forces and Japanese forces was an added bonus. Thank you for a great read!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2024

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