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AV Extenders Price Comparison

Compare 428 AV extenders from Lindy, Kramer, ATEN and more — find the best price on Cat6, HDBaseT, fibre and wireless HDMI extenders.

Lindy
Kramer Electronics
ATEN
StarTech.com
Digitus

Sending a pristine 4K signal across a room is trivial. Sending it 100 metres through a wall, across a ceiling void, or into a conference room three floors up — that's where AV extenders earn their keep. We've catalogued 428 products in this category, spanning everything from a basic HDMI signal booster at 26 £ to professional fibre optic kits pushing past 615 £, and the spread tells you a lot about how varied the requirements really are.

Lindy dominates the catalogue with the broadest range, but it's Kramer Electronics that commands the highest average spend — a clear signal that integrators and installers trust the brand for demanding, permanent installations. ATEN and Black Box sit firmly in the professional tier, whilst StarTech.com and Digitus offer a more accessible entry point without cutting too many corners. Manhattan is worth a look if your needs are modest: their compact Cat6 kits and wireless dongles cover the basics at a fraction of the cost of the big names.

The technology you choose matters more than the brand. HDBaseT over Cat6 or Cat7 remains the workhorse of the industry — reliable, cost-effective, and capable of reaching 100m with 4K@60Hz when paired with quality cabling. Fibre optic extenders from StarTech.com push that to 1km on single-mode, which is genuinely transformative for large venues or campus-wide installations. Wireless options from Digitus and Manhattan are tempting for boardrooms and presentation spaces, but be honest with yourself about latency: 50–200ms is fine for a slide deck, not for gaming or live video production.

HDCP compliance is a detail that catches people out. If you're extending content from a Blu-ray player, a Sky box, or any streaming device, your extender must support HDCP 2.2 at minimum — otherwise the signal simply won't pass. HDR support is the other modern essential: HDR10 is now table stakes for any 4K setup, and if you're running Dolby Vision sources, verify compatibility before buying. These aren't premium extras; they're baseline requirements for a modern AV chain. Compare the full range of options alongside video signal converters and video switches to build a complete distribution system.

Prices cluster heavily between 173 £ and 320 £ — that's where the bulk of competent 4K HDBaseT kits live, and where we'd point most buyers. Below that, you're largely in 1080p territory or single-function signal boosters. Above 468 £, you're paying for fibre, matrix switching capability, or enterprise-grade management features that most home and SME users simply don't need.

How to Choose an AV Extender: The Criteria That Actually Matter

Most buyers get tripped up by two things: underestimating the distance they need to cover, and overlooking HDCP compliance until the signal refuses to pass. With prices ranging from 26 £ to well over 468 £, picking the right extender means matching technology to your specific installation — not just grabbing the cheapest kit that mentions 4K on the box.

Distance and transmission medium

This is the decision that shapes everything else. Cat6 HDBaseT extenders reliably cover 70–100m and are the default choice for most installations — cabling is cheap, widely available, and easy to terminate. Cat7 pushes bandwidth higher but rarely justifies the extra cost unless you're running 4K@60Hz with HDR over the full 100m. Fibre optic is in a different league: StarTech.com's fibre kits reach 300m on multimode and over 1km on single-mode, which matters for large venues, campuses, or any run where electromagnetic interference is a concern. Wireless extenders (Digitus, Manhattan) cap out around 30m and introduce latency — useful for flexible presentation spaces, problematic for anything requiring tight sync.

Resolution and refresh rate — 4K@30Hz vs 4K@60Hz

Don't be fooled by '4K support' on the box. 4K@30Hz is adequate for static content and presentations, but it produces visible motion judder on video and is completely unsuitable for gaming. 4K@60Hz is the real standard for modern installations, and it demands significantly more bandwidth — which in turn demands better cabling, better extenders, and a higher budget. If your source is a gaming console, a high-frame-rate camera, or a modern streaming device, 4K@60Hz is non-negotiable. For a digital signage screen showing a menu board, 4K@30Hz is perfectly fine and will save you money.

HDCP 2.2 compliance — the silent deal-breaker

HDCP (High-bandwidth Digital Content Protection) is the handshake that allows protected content to flow between devices. HDCP 1.4 handles older sources; HDCP 2.2 is required for 4K Blu-ray, Netflix 4K, Amazon Prime Video 4K, and most modern streaming devices. An extender that only supports HDCP 1.4 will either downscale the signal or block it entirely when it encounters a 2.2-encrypted source. Always verify HDCP 2.2 support before purchasing — it's listed in the spec sheet, not always on the product image.

Latency — critical for interactive use

Wired extenders (Cat6, fibre) introduce near-zero latency — typically under 5ms, imperceptible in practice. Wireless extenders are a different story: expect 50–200ms depending on the product and environment. For a boardroom presentation or a digital signage loop, that's irrelevant. For video conferencing, gaming, or live event production, it's a serious problem. The j5create JVW120 and similar wireless USB extenders are specifically designed for cameras and peripherals in meeting rooms — a legitimate use case, but one where you need to know the constraints going in.

Power over Cable (PoC) vs external PSU

Power over Cable means the transmitter powers the receiver through the same Cat6 run — no need for a mains socket at the remote end. This is a significant practical advantage in ceiling voids, behind displays, or anywhere that adding a power outlet would be expensive or disruptive. Most mid-range HDBaseT extenders now include PoC as standard; budget kits often don't. If your installation requires a power outlet at both ends, factor that into the total cost — an electrician's call-out can easily exceed the price difference between two extender kits.

IR, RS232, and USB pass-through for full system control

A basic extender sends video and audio. A professional extender also passes IR signals (so you can control a source device from the display end), RS232 commands (for integration with control systems like Crestron or AMX), and sometimes USB (for keyboard/mouse, touch screens, or camera feeds). If you're building a managed AV system — a boardroom, a classroom, a hospitality installation — these features are essential. If you're simply extending a home cinema signal to a second room, you probably don't need them and shouldn't pay for them.

  • Entry-level and signal boosters (From 26 £ to 173 £) : Mostly 1080p signal repeaters, basic HDMI boosters (StarTech.com, Lindy, LogiLink), and compact Cat6 kits for short runs. Manhattan's slim extender kit sits here and punches above its weight for simple installations. Don't expect 4K@60Hz or HDCP 2.2 at this level — verify specs carefully. Fine for a second bedroom display or a short office run.
  • The sweet spot — competent 4K HDBaseT (From 173 £ to 320 £) : Where the market really lives. Digitus HDBaseT sets, ATEN entry-level extenders, and StarTech.com Cat6 kits with 4K@30Hz or 4K@60Hz support. Most include PoC and basic IR pass-through. This is the right budget for a boardroom, a classroom, or a home cinema extension — you get genuine 4K capability without paying for features you won't use.
  • Professional-grade with full feature sets (From 320 £ to 468 £) : StarTech.com's 4K@60Hz Cat6 extenders over 100m, ATEN mid-range, Lindy and WyreStorm kits with HDR, HDCP 2.2, RS232, and full audio pass-through. Black Box starts appearing here. Suitable for permanent AV installations, multi-room systems, and any setup where reliability and feature completeness matter more than upfront cost.
  • Fibre optic and enterprise (Over 468 £) : Kramer Electronics, Black Box, and StarTech.com fibre kits dominate this tier. You're paying for extreme distances (up to 1km+), EMI immunity, matrix-capable architectures, and enterprise support. Overkill for most users — but if you're running cable through an industrial environment, across a campus, or into a broadcast facility, this is where you need to be.

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Frequently Asked Questions

What is the difference between an HDMI extender and an HDMI signal booster?

An HDMI signal booster amplifies a degraded signal over a single HDMI cable, typically extending reach from 5m to around 15–20m. An HDMI extender converts the signal to travel over a different medium — Cat6, Cat7, fibre optic, or wireless — and can cover distances from 60m to over 1km. Boosters are cheaper and simpler; extenders are what you need for any serious distance. If you're covering more than 15 metres, you need an extender, not a booster.

Will an AV extender work with my Sky Q box or Netflix 4K?

Only if it supports HDCP 2.2 — full stop. Sky Q, Netflix 4K, Amazon Prime Video 4K, and 4K Blu-ray all use HDCP 2.2 encryption, and any extender that only supports HDCP 1.4 will either block the signal or force a downscale to 1080p. Always check the HDCP version in the product specifications before buying. This catches out a surprising number of buyers who assume '4K extender' means full compatibility.

How far can a Cat6 HDMI extender actually reach?

A quality Cat6 HDBaseT extender reliably covers 70–100m at 4K@30Hz; some achieve 4K@60Hz at 70m with good cabling. Beyond 100m, signal integrity degrades and you'll need fibre. The cable quality matters as much as the extender — use Cat6 or Cat6a with proper terminations, avoid cheap unshielded cable in electrically noisy environments, and keep runs as straight as possible. Wireless extenders cap out at around 30m and are not a substitute for Cat6 over longer distances.

Are wireless HDMI extenders reliable enough for a permanent installation?

Honestly, no — not for most permanent installations. Wireless extenders (Digitus, Manhattan) are excellent for flexible presentation spaces and hot-desking environments where running cable isn't practical. But they operate on 2.4GHz or 5GHz bands that are increasingly congested in office buildings, introduce 50–200ms of latency, and can be disrupted by walls, other wireless devices, or even microwave ovens. For a boardroom with a fixed display, run Cat6 — it's more reliable, lower latency, and cheaper over the long term.

Do I need an extender with IR pass-through?

You need IR pass-through if you want to control a source device (Blu-ray player, media streamer, AV receiver) using a remote control from the display end of the extension. Without it, you'd have to walk back to the source to change inputs or adjust settings. For home cinema second-room setups and boardroom installations, IR pass-through is a genuine quality-of-life feature. For digital signage or unattended displays, it's irrelevant. RS232 pass-through is only relevant if you're integrating with a control system like Crestron or AMX.

What's the risk of buying a cheap no-name HDMI extender?

The main risks are HDCP handshake failures, inconsistent 4K support, and early hardware failure. Many budget extenders advertise 4K but only deliver it under ideal conditions — short cable runs, no HDCP, no HDR. They also tend to run hot and fail within 12–18 months in permanent installations. Brands like Lindy, StarTech.com, and Digitus aren't glamorous, but they publish honest specifications, offer real warranties, and have UK support. For a one-off presentation, a cheap kit might be fine. For a permanent installation, the cost of a callback and replacement far exceeds the saving.

Is a fibre optic AV extender worth it in 2026?

For distances beyond 100m or in environments with heavy electromagnetic interference, yes — fibre is the only sensible choice. StarTech.com's fibre kits cover 300m on multimode and over 1km on single-mode, with zero EMI vulnerability and no signal degradation over distance. The cabling is more expensive and harder to terminate than Cat6, and the extender kits themselves sit above 468 £. For a standard office or home installation under 100m, Cat6 HDBaseT is more practical and significantly cheaper. Fibre earns its cost in large venues, industrial sites, and campus-wide AV distribution.