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Panamax M8-AV-PRO

Power line conditioner and surge protector

22 Reviews

Item # 299M8AVPRO

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Our take on the Panamax M8-AV-PRO

The Panamax M8-AV-PRO shields your audio/video system from harmful spikes and surges in your home's AC power. It also filters out the RF (radio frequency) and electromagnetic noise that can keep your audio/video system from looking and sounding its best.

The Panamax M8-AV-PRO shields your audio/video system from harmful spikes and surges in your home's AC power. It also filters out the RF (radio frequency) and electromagnetic noise that can keep your audio/video system from looking and sounding its best.

Protection for a variety of inputs, plus expansion options

Panamax m8-0av-pro power line conditioner

The M8-AV-PRO has eight outlets separated into two isolated filter banks to reduce the possibility of interference between components. One bank of four outlets is designed for equipment with higher current demands, such as home theater receivers and powered subwoofers. The other bank of outlets protects the rest of your gear.

You also get three sets of protected coaxial input/output jacks for your cable TV and antenna feeds, plus one input/output for your telephone or Ethernet connection. The M8-AV-PRO's versatile design lets you protect even more components by adding optional Panamax modules.

The MOD-SPKP protects outdoor speakers or keypad or other control lines, while the MOD-DBSTV provides more protection for components with coaxial connections, like additional satellite receivers or cable boxes.

Quick reaction time saves your gear

When a power spike hits, the M8-AV-PRO reacts in less than a nanosecond, breaking the connection to protect your equipment. When the AC voltage returns to a safe level, the Panamax automatically reconnects power.

Product Highlights:

  • total of 8 protected AC power outlets in two isolated banks
  • includes 4 high-current outlets for receivers, amps, and powered subs
  • 2 sets of coaxial RF input/output jacks
  • 1 set of phone line and Ethernet input/output jacks
  • 12-volt trigger input for high-current outlets
  • LED overvoltage and power status indicators
  • 8-ft. power cord with right-angle plug
  • 1875-joule surge protection
  • UL 1449 Rating: 500V
  • response time: less than 1 nanosecond
  • wall-mountable (mounting hardware and brackets included)
  • 12-1/16"W x 1-13/16"H x 5"D
  • weight: 3.5 lbs.
  • lifetime $5,000,000 connected equipment warranty (covers equipment damaged by an AC or signal line surge while connected to properly installed Panamax surge protector); valid only in the United States and Canada
  • warranty: lifetime on M8-AV-PRO
  • Our 60-day money-back guarantee

What's in the Box:

  • Surge protector with attached 8.25' power cord (terminated by a right-angle 3-prong AC plug)
  • 42" Coax (RG-59) cable (terminated by screw-on F-type connectors)
  • 3 Mounting screws
  • 3 Drywall anchors
  • 3 Spacer eyelets
  • Installation Instructions (En/Fr/Sp)
  • Warranty and Connected Equipment Policy Information

I have had a Panamax M8-AV-PRO for a couple of years now and it works great. This is my second one. Here in Florida there are a lot of thunder storms and brown outs. It has saved my TV and surround sound system many times. I highly recommend the Panamax M8-AV-PRO.

James, Cocoa, FL


Panamax M8-AV-PRO Reviews

Average Customer Review(s):

(22 Reviews)

Panamax M8-AV-PRO

James from Cocoa, FL on 3/22/2018

Crutchfield Customer Review (What's this?)

I have had a Panamax M8-AV-PRO for a couple of years now and it works great. This is my second one. Here in Florida there are a lot of thunder storms and brown outs. It has saved my TV and surround sound system many times. I highly recommend the Panamax M8-AV-PRO.

Pros: Dependable protection

Cons: none

Panamax M8-AV-PRO

Anonymous from Apache Junction, AZ on 12/3/2017

Crutchfield Customer Review (What's this?)

So far so good

Pros: lots of plugs

Cons: no usb

Great price on something that may save all of your expensive stuff

Louis from Riverside, CA on 9/15/2017

Crutchfield Customer Review (What's this?)

This power supply seems pretty great so far. My A/V rack is all plugged in to this thing, and I already wish I had more outlets. I like that the 2 strips of 4 outlets are isolated from each other, one being designed for high current equipment. I have a Denon AVR, and 2 powered subs taking up 3 of those outlets. While a Samsung QLED, it's OneConnect box, a network switch, and the wireless adapter for the wireless powered sub take up the 4 low current outlets. It also has the 3.5 mm remote start port that will turn on the 4 high current outlets when a 12V signal passes to it, but I don't have anything with a remote out port so I haven't been able to take advantage of that. The only thing I dislike about this thing so far, and the reason for only giving the item 4 stars, is the sound it makes. I don't know if it is just my unit, but I assume it has to do with the power conditioning or RF and EMI filtering, but this thing makes a slight noise that is hard to describe. It is cyclical, and something like a cross between the whine you can hear in car speakers when they are getting alternator noise in the lines, and a cats purr. It is definitely a good buy that I would recommend or buy again even with the sound. I have been on the fence about getting a rack power conditioner with more outlets, but I don't want to drop 4-500 on power instead of spending that money on fun stuff like more speakers or amps.

Pros: Price point Large insurance policy for items plugged into it in case of failure Separate outlets for high current equipment RF and EMI filtering

Cons: It makes a weird and annoying sound that can be heard if the room is really quiet

Power pal by Panamax

Joe from Wadsworth, OH on 6/12/2017

Crutchfield Customer Review (What's this?)

High value unit, easy to install in my system . Very pleased with its performance.

Pros: High power connections plus other outlets provide great protection with adequate spacing of outlets

Cons: Would like ability to use detachable heavier power cord from aftermarket but this unit does it all at a great value

Panamax M8-AV-PRO

Alan from Cypress, TX on 3/12/2017

Crutchfield Customer Review (What's this?)

Does what it's supposed to. You plug things in and they power up.



Panamax M8-AV-PRO

Anonymous from Pierre, SD on 1/5/2017

Crutchfield Customer Review (What's this?)

expensive but you tell that it is well built. having outlets not side-by-side is the best feature.



Panamax M8-AV-PRO

Kevin from Elk Grove, CA on 12/17/2016

Crutchfield Customer Review (What's this?)

Since I changed out my old power strip/filter/surge protector with the Panamax M8-AV-PRO I have had zero issues with power fluctuation or noise. My trust in this unit has allowed me to try out a tube amp for the first time.



Outlet spacing is perfect!

Tony from Macungie, PA on 8/22/2016

Crutchfield Customer Review (What's this?)

Finally a power step with outlets which are spaced for power adapters. What more can you say about a power strip?..It works as advertised.



Very Pleased

Skyking from Indiana on 12/26/2015

Crutchfield Customer Review (What's this?)

This product is well built and has plenty of outlets for all of my equipement. Now my equipement is well protected. I highly recomend this product.



Silent protection

Anonymous from Indiana on 12/12/2015

Crutchfield Customer Review (What's this?)

Much quieter and no observable flicker in adjacent outlets when compared to the Triplite unit it replaced

Pros: Flat wall hugging plug and cord, Plenty of outlets that are spaced far enough apart to accommodate transformers.

Cons: None

Panamax M8-AV-PRO

MP from Colorado on 12/11/2015

Crutchfield Customer Review (What's this?)

Seems to work well. No issues thus far.

Pros: Will protect my TV and some stereo equipment so my warranties are not voided by a lightening strike.

Cons: Not enough normal plug points. Only has 4 regular (AC) plug points. The 4 DC ports are useless to me.

Great features for a great price.

KenCOH from Ohio on 9/30/2015

Crutchfield Customer Review (What's this?)

Panamax quality with line surge protection and cleaning and filtration of "dirty" power for your A/V equipment. The $5,000,000 Connected Equipment Warranty is there for even more peace of mind.

Pros: Solid feel with some weight to the unit.

Cons: None.

Panamax M8-AV-PRO

Tom B from New York on 5/27/2015

Crutchfield Customer Review (What's this?)

This product is working fine. My TV picture seems to be a little sharper. Easy install!



Nice Addition!

Joe B. from Arizona on 10/29/2014

Crutchfield Customer Review (What's this?)

I got this as an add on to an order I'd placed for a Klipsch subwoofer, as Crutchfield was offering a nice discount when purchased as a package. I swapped it out with my previous power conditioner (a Monster HTS-1000), and noticed an immediate improvement. With the HT-1000 I'd had a very slight, almost imperceptible ground loop hum in my mains (you had to put your ear right up against the speaker to hear it). With any kind of program material it was not noticeable but it bugged me nonetheless (my obsessive/compulsive tendencies I suppose). After hooking up the Panamax, they were dead quiet! Nothing. Nada... So much happier! So why 4 stars? Well, I wanted to use the 12v trigger function as a remote power on for my amps, and so far, I can't get it to work. I'm still researching and troubleshooting with Panamax and Denon manuals so the rating will certainly go up to 5 stars if I can get this feature working.

Pros: Solid power conditioner. Super quiet!

Cons: 12v trigger on does not seem to be working with my Denon AVR-3805. Not sure if it is a Denon, Panamax, or just compatibility issue.

Excellent Product

John from PA on 9/23/2014

Crutchfield Customer Review (What's this?)

Excellent product. Provides peace of mind.




JEfF m from Billsville on 11/3/2013

Crutchfield Customer Review (What's this?)

Best inexpensive high voltage protection . heavier than the M8-AV ,which to me says better protection and a $ 5,000,000 protection guarantee. How can you go wrong for the price .

Pros: reassurance

Cons: 0

Great product

Bill E. from Ny ny on 6/8/2013

Crutchfield Customer Review (What's this?)

The unit comes with an eight foot cord which was perfect for my stereo location which was far from an outlet. The system truly sounds better. There is silence when no sound is coming on a track mp noise . Am going to use the CATV and coax connectors too when my new sat antenna comes in. Nice compact unit hides easily behind and under my audio cabinet .

Pros: Good value, features, and performance

Cons: May not be the best for high end equipment

Solid hardware but pricy

PR from Hummelstown, PA on 10/8/2012

Crutchfield Customer Review (What's this?)

I purchased this after finally setting up a starter home AV system networked with 2k worth audio equipment and similarly priced TV as I thought it made sense to protect my now pricey system with more than the $10 surge protector strips I used to use. The construction is solid and all my power cords fit in, as well as my ethernet, and coax. Having never had any issues with power in the past or issues with the cheap-o strips, I can't say that the Panamax has added anything more than piece of mind. There really hasn't been any change in my audio or video quality after connecting everything to the Panamax, but my equipment may not be of high enough quality to notice line noise anyway. I took away one star as I'm not convinced the price is justified, though uses with electrical issues in the past may easily say otherwise.

Pros: Solid construction, looks like it would live up to the advertised job

Cons: Pricey

Solved A Big Problem

DH from Indianapolis, IN on 7/16/2012

Crutchfield Customer Review (What's this?)

I have a new stereo rig that includes a tubed pre-amp, and when I installed it on the same rack as my TV and cable box, I was getting a very loud hum through the stereo. I'm no electrician but I knew it was interference between the pre-amp and the cable box,. This Panamax unit solved the problem - no more hum! It was worth the price to me to be able to hear the stereo in all of its glory.

Pros: All of my gear plugged into the same unit

Cons: Pricey but worth it

Panamax M8-AV-Pro

Gary from Santa Barbara, CA on 6/23/2012

Crutchfield Customer Review (What's this?)

I could not believe the difference in the streaming and picture quality improvement in my system. My wife thought I bought a new TV without telling her. The clarity and lack of tells were amazing on the same equipment.

Pros: 8 plugs, 2 sets of LAN and Coax inputs, flat wall plug, thin profile and EZ to mount.

Cons: Price initially, But based on improvements to my system and the warranty protection against surge damage, a bargain.

Panamax M8 AV PRO

Nicholas from Long Island ,New York on 2/4/2011

Crutchfield Customer Review (What's this?)

I have had the Panamax M8-AV PRO surge for about 6 weeks or so. The sound from music Cd and Sacd music playing has a cleaner and better defined audible clarity. However, I still get a humming sound from my Sony ES4300 receiver that is irritating. This is probably the nature of this receiver's electronic circuits. In conclusion, I am glad I bought the product.



Product As Described

M. from Boston, MA on 11/29/2010

Crutchfield Customer Review (What's this?)

Requested pre-sales support to select item as the surround system was experiencing a hum in the speakers. Definitely an upgrade, albeit expensive from the surge protector in use although worth the peace-of-mind. Connections for Receiver, DirecTV, phone etc quick installation. Hum not corrected indicating defect in receiver - first experience with Crutchfield customer advisor quickly dismissing follow-up support request.




Hands-on research

Product Research



Overview: The Panamax M8-AV-PRO Surge Protector features 8 AC outlets controlled by the unit's power switch. The M8-AV-PRO also provides protection for coaxial and telephone connections. It is recommended to work with your High Definition TV. In addition, this surge protector is equipped with 4 diagnostic LEDs. The LEDs indicate Power On/Protection OK, Ground OK, Unsafe Voltage, and DC Trigger.

8 AC Outlets: The 8 AC outlets provide power protection with transformer spacing between outlets.

Noise Isolation: The M8-AV-PRO features two isolated outlet banks to eliminate cross-contamination between components. Outlets 1-4 (on the top of the unit) feature "Balanced Double L" filtration, and are isolated from Outlets 5-8  (on the side of the unit), designed for high current equipment like amplifiers and powered subwoofers. Any noise created by an A/V component in one bank cannot contaminate the power to the equipment plugged into the other outlet bank.

AVM (Automatic Voltage Monitoring): The M8-AV-PRO utilizes an AVM (Automatic Voltage Monitoring) system to protect your connected equipment against prolonged over/under voltages by disconnecting the power when unsafe voltages are detected, and reconnecting it when safe power returns. The M8-AV-PRO will protect your A/V system from catastrophic surges.

Cleaning/Filtration: Common symptoms of "dirty" power include loss of detail, hisses, hums, and visual artifacts. The Power Cleaning and Premium Filtration circuits help your A/V equipment perform to its full capability by eliminating line noise inherent in household current. The result is improved picture and sound quality.

Power Cord: The surge protector features an attached 8 ft power cord with a right-angle, 45-degree offset three-prong plug. The

Telephone/LAN Protection: The M8-AV-PRO has two RJ-45 jacks for use with telephone and LAN lines. The RJ-45 jacks are designed to accept both standard telephone modular plugs, as well as the larger RJ-45 plugs found on Ethernet cables and LAN lines. The unit will protect connected equipment from electrical surges that travel over telephone and network lines.

Note: The telephone/LAN protection circuits operate in one direction only. The jacks are clearly marked "Equipment" and "Line" to help you avoid connecting them incorrectly.

Coax/Satellite Protection: The unit has two separate in/out pairs of coaxial connectors designed to protect your connected equipment from electrical surges that travel over Cable, Satellite, and Antenna lines. The coaxial connectors are bi-directional, so you may connect your equipment into either jack.

12-Volt DC Signal: In addition to surge protection, the M8-AV-PRO has a 3.5mm input for a 12-volt DC signal. When a 12-volt DC signal is received from a source component, the high-current outlets (outlets 5-8) will be turned on. Power to these four outlets is turned off when the DC voltage signal is no longer being received.

Power Switch/Circuit Breaker: The M8-AV-PRO has an On/Off Power Switch and Circuit Breaker. In addition to turning on and off the 8 AC outlets, the circuit breaker disconnects the AC power from the connected equipment when the amp rating for the unit (15 Amps) has been exceeded.

Add-on Signal Line Modules: If your connected equipment has more signal lines that can be protected by the base unit alone, you can add on optional Panamax signal line modules. The MOD-DBSTV (item # 299MODDBST) is for Satellite, CATV, and Cable Modems, while the MOD-SPKP (299MODSPKP) is for Outdoor Speakers and Control Lines.

Mounting: The M8-AV-PRO Surge Protector can be placed on the floor, on a shelf, or inside a cabinet. The M8-AV-PRO can also be wall-mounted using the integrated wall-mount brackets, key-hole slots, and supplied hardware.

Lifetime $5,000,000 Connected Equipment Warranty: Panamax will replace or repair equipment that is damaged by an AC or signal line surge while connected to a properly installed Panamax surge protector (up to $5,000,000).


  • AC Specifications:
    • Auto-resetting Overvoltage Shutoff: 144V +/-8V
    • Auto-resetting Undervoltage Shutoff: 90V +/-6V
    • Line Voltage: 120VAC, 50/60Hz
    • Initial Clamping Level: 200V Peak, 141V RMS,
    • Voltage Protection Rating (UL1449 3rd Edition, 3000A): 500V
    • Protection Modes: L-N, L-G, N-G
    • Maximum Current Rating: 15A (1800W)
    • EMI/RFI Noise Filtration: 53dB (100kHz-1MHz)
    • Response Time: <1ns
    • Single Pulse Energy: 1875 Joules
    • Peak Impulse Current: 65,000 A
  • LAN Protection:
    • Compatibility: 10/100bT
    • Clamping Level: 7V
    • Suppression Modes: Differential & Common Ground
    • Wires Protected: Pins 1, 2, 3, & 6
    • Connectors: RJ-45 shared with Telco
  • Telco Protection:
    • Clamping Level: 260V
    • Capacitance: 30 pf (approximate)
    • Suppression Mode: Metallic and Longitudinal
    • Wire Protected: 2-wire, 1-pair (4, 5)
    • Connectors: RJ-45 Shared with LAN (compatible with RJ-11)
  • Universal Cable/Satellite Protection:
    • Clamping Level: 75V
    • Frequency Range: 5MHz-2GHz
    • Insertion Loss: <0.5dB
    • Connections: Female "F"-type, gold-plated

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

because it has high current outlets for equipment. [ beth  Jun 30, 2018 ]
Make correctly contact's, to stop harm to speakers. [ Randall  Jun 16, 2018 ]
I have two of these and over several years with our storms in Texas, these have saved my TV'S, Router, and Stereo Equipment. They are quality made. Have a GREAT Warranty, and Crutchfield Staff to back it all up. Thanks [ MICHAEL  Apr 19, 2018 ]
Appeared to be a great selection of options. [ Lucius  Mar 16, 2018 ]
complicated install on a boat [ Peter  Feb 14, 2018 ]
I have had good experiences with similar Panamax products. [ Randy  Dec 18, 2017 ]
I wanted some better protection on my equipment [ Vicky  Nov 19, 2017 ]
to protect my home theater equipment [ Lakshmi  Nov 18, 2017 ]
Good for AV my system.I think so. [ Hoai  Nov 13, 2017 ]
Panamax M8-AV-PRO is a MUST. I'm a previous Panamax consumer and along the years their products REALLY has giving the protection my Home Theater sensitive electronics deserve. I trust the protection of my equipment to Panamax. Feel secure you are REALLY covered when connect your system to the Panamax M8-AV-PRO and any other product they release. Highly recommended. -Sergio R. [ SERGIO  Aug 09, 2017 ]
To protect the system from power surges. [ Evelyn  May 07, 2017 ]
went with sound system sony [ Milonis  Apr 11, 2017 ]
My Yamaha synth is hooked up to one and it's worked great. [ Jack  Apr 02, 2017 ]
Good protection and features, such as the 12v trigger. [ Samuel  Feb 20, 2017 ]
no better way to surge proof my investment [ JOHNNY  Feb 20, 2017 ]
Reputation of company and cost of replacing home theater equipment. It helps to protect my valuable equipment from major electrical damage. [ RICHARD  Feb 03, 2017 ]
I trust Crutchfield for their recommendations. Having been through many storms, I believe in the importance of top rated surge protection! [ Christopher  Dec 31, 2016 ]
Unsure, appears to be just what I need for protection from surges [ Noah  Dec 20, 2016 ]
XMAS GIFT [ VERONICA  Nov 21, 2016 ]
#1 My old TV is going out and would cost too much to fix. I bought a new TV from Crutchfield as I have in the past. I needed surge protection and I trust what Crutchfield offers.They are from Crutchfield!!! One of the must trusted and respected retailers on the web!! [ SAMUEL B  Aug 07, 2016 ]
I lost my previous AVR during a lightning storm as well as my Apple TV. The surge came through the cable television cable and zapped both components because that path was not protected at all. After purchasing a new AVR on Rex's suggestion, and reading reviews of this product, I finally decided to purchase because of the protection it provides. [ Dan  Jul 31, 2016 ]
Great price and its just what I needed. There were many choices but this offered the best protection. [ Bill  Jun 17, 2016 ]
Highly rated around the web. [ Brian  May 01, 2016 ]
Gotta protect the investment of a great t.v! [ BRIAN  Apr 28, 2016 ]
Lightening has blown out my cable box several times. The cable company always replaces it but this last time it also hit my DVDs player. Time to get another protected on all the equipment. This one has enough plugs and the Ethernet port that I need for my cable line. [ Kay  Mar 18, 2016 ]
I have a Panamax product and trust them. [ Steven  Dec 29, 2015 ]
Protection of new equipment. Customer ratings. [ Frank  Dec 21, 2015 ]