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Power protection buying guide

What's the best way to protect your gear?


lugging your audio and video gear into unprotected power outlets is risky. Lightning is the obvious danger. However, smaller power surges, spikes, and sags occur daily. They, too, can damage your gear. In this guide, I'll help you choose the best surge protector for your setup or situation.

Surge protector vs power strip

The first thing you should know? There is a big difference between a generic power strip and the genuine surge protectors that we offer. I took apart a cheap, no-name power strip and the Panamax SP8-AV to give you a side-by-side visual:

Open Panamax vs open generic surge protector

Inexpensive power strips (left) offer little or no protection. Genuine surge protectors (right) include heavy-duty parts that absorb or derail excess voltage.

Types of surge protectors

We separate our power protection units into these main categories: 

  • Long block of protected outlets.
  • Lets you connect several components to one AC outlet.
  • Space-saving surge protector that sits over an existing wall outlet.
  • Provides protection in tight spots where you can't fit a strip.
  • Replaces a regular wall outlet and adds surge protection or suppression.
  • Installation by a licensed electrician recommended.
  • Larger units that provide a higher level of protection.
  • Many offer power filtration for optimal audio and video performance.
inside of a component system

You get a higher level of protection from power protection components like the solidly-constructed Furman Elite-15 PFi

Another threat to your gear: Dirty power

You may never suffer the gut-punch of a catastrophic electrical spike or surge. But your unprotected gear is susceptible to more gradual wear and tear. "Dirty power" comes from electricity's long trek through our power grid to your home or office.

Messy power lines

Our aging power grid was built for keeping the lights on — not delivering pristine sound.

Power sags and inconsistencies can also originate from HVAC units, large appliances, or other factors under your own roof. I recently learned from an electrician that my home's wiring was outdated. (It's an older home that had been grandfathered — it met standards last used in the 1970s!)

Today's TV and stereo equipment needs steady, clean power to perform its best. Just think of all the sophisticated circuitry and processing inside the latest 4K TVs or Dolby Atmos receivers. For the best picture and sound, you’ll want power protection that not only diverts harmful spikes and surges, but also cleans up dirty power.  

Power line conditioning can clean things up

Power line conditioners help drown out Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI). 

EMI and RFI can seep into your system and cause havoc. You may find yourself rebooting your gear more often, or notice a drop in performance.  EMI and RFI can even shorten the lifespan of your gear. 

line conditioning

These readings from Panamax show how erratic and messy AC line noise can get (left), and how a power line conditioner can clean things up(right).

RFI results from radio waves generated by radio stations, cell phone towers, and other places. Your home's electrical circuitry can act as a crude antenna that sends RF signals through your system's power cords and into your gear — sometimes heard as clicks and pops.

EMI originates from items like refrigerators, vacuum cleaners, or washing machine and add a low hum to your otherwise pure sound. Ever notice the lights flicker when you cut on a hair dryer? Imagine what that is doing to your sensitive electronics.

You’ve probably invested a lot into your gear. If the idea is to maximize the sound and/or video performance, you simply don't want to skimp when it comes to line conditioning.     

What do you need to protect?

Make a home theater "checklist. Count the number of components that need protection. The average modern system might have the following placed in a central location:

  1. TV
  2. Cable or satellite box
  3. Streaming device (like a Roku or AppleTV®)
  4. Receiver or sound bar
  5. Blu-ray player
  6. Game console
  7. CD player, turntable, or other audio component
  8. Powered subwoofer

For this system, you need a power protection unit with at least eight outlets. It’s good idea to have a few more, just in case you add something to your system later on.

back of 703NGARA5K

The AudioQuest Niagara 5000 includes 12 hospital-grade AC outlets, divided into six isolated banks to prevent noise created by one component from affecting other gear.

Have you blocked all surge pathways?

Power surges can travel through your cable or satellite TV lines and your home network cables, too. Look for surge protectors with protected inputs for these types of connections. Don’t forget that you’ll need extra coaxial and Ethernet cables to complete the hookup.

Are your modem and Wi-Fi® router protected?

More and more modern appliances and A/V gear rely on your network. For everything from Smart TVs to home automation, you need a solid Wi-Fi and internet infrastructure.

But what happens when a power surge takes out your modem or router? Even if you rent them from your internet provider, you still have to wait on a service call or parts to ship. Meanwhile, you have no network — no working from home. No music through your Sonos® system. No binge-watching shows on Netflix®.

If you keep your modem and router safe, you can restore your internet — and your life — much faster.

What about your Sub?

Subwoofers are often placed in a separate area from the rest of your components. Rather than leave them hanging out to dry, you’ll want to make sure you have an extra surge protector.

You can use a traditional strip-style surge protector, but if you don’t need several outlets for other gear, use a space-saving surge protector like the Panamax MD2 (Pictured below).

299SP1000 plugged into outlet

Is your TV wall-mounted?

In-wall or on-wall surge protectors work best for wall-mounted televisions. It's a matter of space, but also aesthetics. You want your TV to look clean and uncluttered on your wall.

A ceiling-mounted projector will need its own dedicated surge protector. In-wall/in-ceiling surge protectors work best for this setup.

Safely charge your smartphones and tablets

Let's face it — we all live on our phones these days. It would be a disaster if something happened to it. Get a surge protector with built-in USB connections to protect your device as it charges.

119121828 charging iPad

The Panamax Power360 P360 cradles and safely charges your phone, takes up little space, and offers protected AC power outlets — I use two at my house.

Keep your home office running

Traditional desktop computers often don't have back-up power. A surge protector with an Uninterruptible Power Supply (UPS) keeps your computer going long enough for you to shut it down properly. You also buy some time to save any unfinished work.

Do you have Sonos or other wireless speakers?

Not every room or home is built to handle a large sound system. Single wireless home speakers are popular because of their convenience and size. A wireless speaker should always plug in to a protected outlet, whether you keep it in one place, or move it from room to room.

Keep that in mind if you have wireless surround sound speakers.

Protect your outdoor speakers

Outdoor speakers spend their days in the elements. It's important to not only keep them protected, but also your gear inside that plugs into the same electrical system.

The Panamax MOD-SPKP plug-in module connects to your inside surge protector. It has eight screw terminals for your speaker wires. (Or, if you have a home security system, you can also use some of the terminals for those wires.)

We can help you choose

Have questions about how to choose the right power protection unit? 

Our expert Advisors know the gear inside and out. Your Advisor can send specific Crutchfield pages to your screen, saving you a lot of browsing time. You'll get a shopping cart loaded up with everything you need. 

Free lifetime tech support is included with your Crutchfield purchase.

  • Tony

    Posted on 7/12/2021

    Protect everything you can w/the best you can afford! Even so when a storm is pending we unplug everything from coffee pots to modem/routers to all AV equipment to ANYTHING w/a micro processor. Some things you can't like my washer/dryer combo

  • Andrew Heller from Oak Lawn

    Posted on 10/11/2020

    Question. What is the smart way of hooking up your AVR equipment with a surge protector? The way I have it hooked up, I'm using one surge protector to power all my gear... I have about 8 or 10 different things hooked up like 2 powered subwoofers my AVR and TV Xbox, Nintendo Switch, Cable box, 4K Blu-ray Player. Should I invest into purchasing a few surge protectors and use them in different wall outlets? Because I feel like I am using too much power or something and my subwoofers feel like they aren't getting the power they want. Thanks :)

  • Drew from Gastonia

    Posted on 3/17/2018

    Why does an automatic voltage regulator push these devices near 1K when commercial AVR are around 350?

  • Tom Gibson from Lomita

    Posted on 12/19/2017

    What about a whole house surge protector located at the circuit box. Would this be adequate protection?

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    Jeff Miller from Crutchfield

    Posted on 10/30/2017

    Hey Rich, I'll check with our tech guys on that. Do you mind sharing what type of surge protector you have?

  • Rich from Reisterstown

    Posted on 10/28/2017

    I recently purchased a smart surge protector with the TV as the master component. Do you know of a reason why a receiver shouldn't be in an outlet controlled by the master component?

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    Jeff Miller from Crutchfield

    Posted on 7/14/2017

    Great point, Franc. They should all be protected.

  • Franc

    Posted on 7/2/2017

    Your notice of the network modem as a vulnerability is absolutely valid and often overlooked. I lost 2 expensive Netgear routers, an Onkyo receiver, and sustained damage to my TV because I didn't have the modem protected. But, you failed to mention protecting the phone line, or if you did, I missed it. In my case, lightning strike penetrated through the DSL/phone line. It's ALL protected now.

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    Jeff Miller from Crutchfield

    Posted on 8/14/2015

    Jacalyn, It depends on how your gear is connected. Surges will take the path of least resistance. You want to make sure all connections are protected.

  • Jacalyn Hagans from Cleveland

    Posted on 8/12/2015

    Does a power surge from a storm go through the satellite box to the tv or directly to the tv?