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Sennheiser

Sennheiser AB4-GBW In-line +12dB Antenna Booster 606-678MHz CH38

SKU: 508540
Sennheiser AB4-GBW In-line +12dB Antenna Booster 606-678MHz CH38
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    £220.00 inc VAT
    £183.33 ex VAT

    6 available online
    More available from supplier in 1–3 weeks
    Delivered by MondayOrder by 3pm
    Click & Collect tomorrow ›Collect from our warehouse in Wembley, London
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    2 Year Manufacturer Warranty Included
    About Stage Supply
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    About this Product

    The Sennheiser AB 4-GBW is an inline UHF antenna booster providing typically 12 dB of gain across the 606-678 MHz range. Fitted between the antenna and receiver, it compensates for cable losses on long antenna runs, helping maintain reliable RF over distance in installed and touring wireless systems.

    Features
    Typical 12 dB inline gain to offset cable loss
    606-678 MHz UHF range
    BNC connectors, 50 Ω impedance
    No battery or separate PSU required
    Compact inline housing for rack and stage use
    Specifications
    Manufacturer Sennheiser
    Model AB 4-GBW (508540)
    Type Inline antenna booster
    Frequency range 606-678 MHz
    Gain Typ. 12 dB
    Connectors BNC
    Impedance 50 Ω
    Power No battery / no separate PSU required
    Dimensions 95 x 47 x 21 mm
    Weight 130 g

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    More Information

    • AB 4 is fully compatible with all legacy evolution wireless systems
    • Boosts filtered signal by typ. 12dB
    • No power supply necessary
    • Compact full metal housing
    • Includes BNC cable
    • Power supply via antenna cable from ASA 214 or EM 2050

    Manuals & Downloads

    PDFUser GuidePDF

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    Frequently Asked Questions

    We’re a working touring and events production company founded in 2019 by sound engineers with many years of experience. 

    We’re very selective about the products we sell. Everything we supply we use ourselves on our tours, events and productions. This means we can offer a level of buying advice and aftersales support that can’t be beaten.

    We’re official dealers of brands such as Allen & Heath, Audio Technica and sE Electronics. We also stock other leading brands including Shure, Sennheiser, Martin Audio and Chauvet Professional.

    We accept Debit & Credit Cards, Apple Pay, Android Pay and Paypal. We also offer finance through Paypal Credit and Klarna.

    Business Customers can choose to receive a Proforma Invoice on checkout to pay by bank transfer.

    Yes. We run an AV production business and have AV Engineers on hand to provide advice and technical support during our operating hours.

    The quickest way to contact us for advice and support is through WhatsApp or Email.

    We're an AV production company as well as a retailer. Sharing staff and premises between the two allows us to keep our costs down.

    As AV Engineers ourselves, our mission is to provide high quality equipment to other AV Professionals at reasonable prices.

    Please see our Returns page for information on our returns policy and to start a return online.

    Generally if you change your mind you can return your item for a full refund within 14 days of purchase - as long as the product is unopened and unused. 

    If an item is faulty or damaged we will arrange collection free of charge and repair/replace it as quickly as possible.

    Estimated delivery times are shown on the product page. For items in stock we aim to get your order to you within 1 - 3 working days.

    Some items are ordered directly from the manufacturer. These may have longer lead times which will be estimated on the product page. Please contact us for a more accurate lead time.

    Yes. You can collect from our Production Space in Wembley, London. Please note that only a small range of our products are stored here, items showing as in stock may need to be transferred from our warehouse. If the item is in stock it will usually be ready to collect the same or next working day.

    Yes. We can install across the UK. 

    We've been involved in installation projects ranging from large capacity Music Venues to Coffee Shops, Churches and Council Offices.

    Please click here to contact us to learn more about our installation service.

    Guides on this kit