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Panamax MR4000

Power line conditioner and surge protector

39 Reviews | 5 questions - 6 answers

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Item # 299MR4000

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Our take on the Panamax MR4000

If you took a survey of Crutchfield employees, you'd find a lot who protect their systems with Panamax power conditioners, including me. The Panamax MR4000 will guard your audio/video system from damaging power spikes as well as the minor day-to-day current fluctuations that can compromise your system's performance over time.

Clean, dependable power for your home theater

Panamax MR4000

Protect your entire system with a total of eight AC outlets, plus in/out sets of coaxial and LAN connections.

If you took a survey of Crutchfield employees, you'd find a lot who protect their systems with Panamax power conditioners, including me. The Panamax MR4000 will guard your audio/video system from damaging power spikes as well as the minor day-to-day current fluctuations that can compromise your system's performance over time.

Top-quality picture and sound start with clean power

With today's high-definition video and high-resolution audio sources, it's more important than ever to keep noise to a minimum. The seven rear-panel AC outlets employ Panamax's Level 2 noise filtering, which significantly reduces AC line noise.

The MR4000 offers multiple layers of surge protection. Panamax's patented Automatic Voltage Monitoring (AVM) technology continuously monitors the incoming power. In case of an under-voltage or brownout (too little electricity), or an over-voltage (too much electricity), the power to your equipment is automatically switched off. When voltage returns to a safe level, power to the equipment is automatically reconnected.

The other layer of surge protection is Panamax's exclusive Protect or Disconnect™ technology. This ultra-fast circuitry completely protects your equipment from catastrophic surges such as those caused by lightning. When that type of extreme event occurs, the MR4000 automatically disconnects AC power to your equipment.

Additional protection for coaxial and LAN connections

The MR4000 also provides one set of in/out coaxial terminals to shield your satellite, cable TV or over-the-air antenna connections. A pair of protected Ethernet jacks lets you plug in your laptop and surf the web on a protected connection.

Product Highlights:

  • total of 8 surge-protected, noise-filtered AC outlets — 7 rear, 1 front:
    • seven rear-panel switched outlets
    • one front-panel always-on convenience outlet
  • Automatic Voltage Monitoring (AVM) technology continuously monitors incoming AC power to protect against over- and under-voltage situations
  • Protect or Disconnect™ technology disconnects AC power to equipment in the event of a catastrophic surge or spike
  • Level 2 EMI/RFI noise filtration circuitry reduces AC line noise
  • one set of in/out coaxial RF connections for cable/satellite/TV antenna
  • one set of in/out RJ-45 LAN connections
  • 1350-joule surge protection
  • maximum current rating: 15 amps
  • 8-ft. power cord with low-profile plug
  • 17"W x 2-1/8"H x 7-5/16"D
  • weight: 6.5 lbs.
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • $5 million connected-equipment warranty (covers equipment that is damaged by an AC surge while connected to a properly installed Panamax surge protector if protector shows signs of surge damage or is operating outside of design specifications)

What's in the Box:

  • Power conditioner/Surge protector (w/ attached 8' power cord)
  • Rack-mount brackets
  • 4 Screws
  • 4 Washers
  • Reference Guide

Great product! Easy hookup....awesome peace of mind. As always-Crutchfield service is 6 star out of 5!!

Scott, Louisville , KY


Panamax MR4000 Reviews

Average Customer Review(s):

(39 Reviews)
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Hands-on research

Product Research


8 Protected & Filtered Power Outlets: The Panamax MR4000 features one front-panel AC outlet and seven rear-panel outlets. All of the AC outlets (front & back) include surge protection and noise filtration.

  • Rear-Panel AC Outlets: The MR4000 features seven protected and noise filtered rear-panel AC outlet to protect all your AV gear.
  • Front-Panel AC Outlet: The MR4000 features a protected and noise filtered convenience outlet located on the front-panel. Perfect for temporary gaming systems, portable electronics (such as music players or smartphones), or other personal electronics.
Note: All outlets (front & back) can be switched on/off from the unit's front-panel power button.

Protect or Disconnect Technology: The Panamax MR4000 employs exclusive Protect or Disconnect technology for surge protection. This ultra fast protection circuitry completely protects your equipment from surges such as lightning. When overwhelmed with extreme catastrophic events, Panamax permanently disconnects AC power to equipment.

Automatic Voltage Monitoring (AVM): Panamax's patented Automatic Voltage Monitoring (AVM) technology continuously monitors the incoming power. In case of an under-voltage or brownout (too little electricity) or an over-voltage (too much electricity) a flashing red lightning bolt will be displayed and power to the equipment is automatically turned off. When voltage returns to a safe level, power to the equipment is automatically reconnected.

Level 2 Noise Filtration: All outlets of the Panamax MR4000 employ Level 2 Noise Filtration; a proprietary technology for removing various types of performance robbing electrical noise from your connected AV equipment.

Signal Wire Protection: Protecting a complete home theater system requires that signal wires coming out of the wall be protected as well. Universal ultra low-loss coaxial protection, as well as LAN/Ethernet protection prevents signal lines from carrying damaging surges while maintaining full high-definition and high-speed Internet signals to your equipment for your connected life.

  • LAN Surge Protection: There is one RJ-45 input and one RJ-45 output for 10/100 baseT Ethernet lines. LAN protection allows for 10/100 base-T Ethernet equipment to integrate into an audio/video system without the risk of upstream surge damage from a gateway, switch, router or other network device.
  • Cable & Satellite Surge Protection: There is one gold-plated coaxial input and one gold-plated, threaded, female coaxial output for connecting your satellite, cable or antenna TV signal lines. Coaxial protection circuits prevent damaging surges from entering through signal paths and have the smallest signal loss on the market; less than 0.5 db of attenuation from 0Hz to 2.2GHz. Panamax coaxial protection has been specifically designed to virtually eliminate signal loss. The clamping level of 75V will meet and exceed the demands of both cable and satellite voltages while minimizing exposure to damaging spikes and surges.

Front-Panel Lights: Blue decorative lights add an attractive look and feel to your equipment rack or entertainment cabinet.

8' Power Cord w/ Low-Profile Plug: The Panamax MR4000 is fitted with an attached 8' power cord w/ a low-profile IEC 3-prong plug. This 45° angle low profile plug allows your equipment to be as close as it can get to the wall outlet while not blocking an adjacent outlets. The 8' power cord means your installation location isn't restricted by wall outlet location.

Circuit Breaker: A circuit breaker is located on the back panel of the MR4000. The circuit breaker will trip only if the total current draw exceeds the maximum current rating (15A). This means that collectively, all outlets must draw more than 15 amps before the circuit breaker will trip.

Rack-Mount Brackets: The MR4000 comes with rack-mount brackets to mount it in a 1U rack space.

$5,000,000 Lifetime Connected Equipment Warranty: Panamax will replace, pay to replace at fair market value, or pay to repair, up to $5,000,000 of equipment that is damaged by an AC surge while connected to a properly installed Panamax surge protector, if the surge protector shows signs of surge damage or is operating outside of design specifications. For coverage conditions and information on how to make a claim, please see the warranty sheet.

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?

design and functionality [ Barbara  Oct 30, 2018 ]
Quality reputation of Panamax. [ Richard  Oct 26, 2018 ]
Protect investment [ Robert  Sep 23, 2018 ]
Review I read on Crutchfield site. [ John  Sep 10, 2018 ]
Panamax quality and great reviews about this line conditioner/surge protector.I already own a Panamax unit and I love the Colbert blue display lights. [ CARMEN D.  Aug 31, 2018 ]
This is the one Ziggy picked & that's the one I bought. Thanks Ziggy & Crutchfield. [ Rick  Aug 02, 2018 ]
Good reviews. Power protection for my equipment. Fair price. [ Basshead 1990  Jun 10, 2018 ]
To protect my equipment [ RAYMOND  Apr 19, 2018 ]
The best of the best . Loved the slick profile and connections on the back are easier and much cleaner than traditional [ Daniel  Mar 23, 2018 ]
I have one of these power conditioners on my system. I am building a home theater system for my daughter and this unit is the first piece so she doesn't have any problems with her constant power supply issues. [ Gary  Dec 30, 2017 ]
Crutchfield recommended this unit. I know nothing about this and asked for their help. [ Robert  Dec 21, 2017 ]
I have been a customer of Crutchfield from late 90's onwards, and my choice then was Sony. At this point in time, I have chosen Onkyo for its features in relation to its cost. [ Ernest  Dec 12, 2017 ]
Looking to minimize AC power hum in tube equipment, [ Richard  Dec 08, 2017 ]
To protect the 4K QLED television, 4K Blu-ray, and 4K compliant HT Receiver that I just purchased from Crutchfield. Seemed like a fair value to protect my overall investment. [ JERRY  Dec 02, 2017 ]
Advisor Wade Recommended, Looked at reviews also! [ SCOTT A.  Nov 30, 2017 ]
To ensure my devices are protected and have a cleaner look. [ Steven  Nov 28, 2017 ]
I heard of the brand and the Crutchfield rep recommended it. [ John  Nov 28, 2017 ]
Looks like a great product for the price! [ Richard Roberts  Nov 27, 2017 ]
Suggested by Crutchfield, wanted to protect investment, good user reviews. [ K  Nov 14, 2017 ]
Good reviews [ CASEY  Oct 19, 2017 ]
I was worried about the safety of my Cambridge receiver. Joey, the Crutchfield advisor, suggested this model. [ Timothy  Sep 13, 2017 ]
Price [ Christopher  Sep 05, 2017 ]
Least expensive clean power option for home theater. [ Clayton  Sep 03, 2017 ]
Has excellent protection record. [ GERARD  Aug 26, 2017 ]
Previous experience with Panamax! High Quality Products. [ J  Jul 21, 2017 ]
PROTECTION [ Kurt  Jun 07, 2017 ]
clean & smooth electrical current and surge protection [ Gary  Jun 05, 2017 ]
Good price and reviews. [ Adam  Jun 01, 2017 ]
25 year old one quit [ A  May 25, 2017 ]
your recommendation and i have had problem with power surges before [ gonzalo  Apr 11, 2017 ]
Protection of audio gear. [ EDMUND  Mar 30, 2017 ]
I needed great protection for my purchase. [ Laura  Mar 10, 2017 ]
I needed a good 'power strip' with the outlets in the correct orientation to accept 12VDC transformers for a number of security cameras. I will then plug the MR4000 into a Panamax MB850 UPS. I know it may be overkill, but better safe then sorry when it comes to protecting expensive cameras, DVR, and a monitor. [ D  Mar 01, 2017 ]
Great power protection and a great price for my audio and video rack. [ S  Feb 17, 2017 ]
Good reviews [ Malena  Feb 09, 2017 ]
Need a good surge protector and it was nice looking [ New User  Jan 23, 2017 ]
Because this will more than protect my man cave home theatre and the warranty is great! [ Milton  Dec 14, 2016 ]
Recommended by Crutchfield [ Michael  Oct 25, 2016 ]
Previous experience with panamax [ Bernard  Jun 17, 2016 ]
I live in a area where lighting is a normal occurrence [ Thomas  May 22, 2016 ]
great product I own serval Panamax products [ B  May 18, 2016 ]
Bought Panamax in the past and liked the products they offer in power protection. [ JEREMY  Mar 21, 2016 ]
Slim profile allows for use where space is limited. Very attractive, but simple, design blends easily with average home decor. Unit can stand alone on shelf as opposed to being required to be mounted within a rack. Front mounted receptacle a plus and increases its versatility. [ SCOTT  Mar 09, 2016 ]
Hav other Panamax products [ ROBERT A.  Mar 01, 2016 ]
needed to protect investment in a/v equipment [ Earl  Mar 01, 2016 ]
Recommended by Buzz Buzz's Bio: [ Paul  Feb 09, 2016 ]
Surge protection is very important, and so is line noise filtering. I own a Panamax power condition for another stereo system and have been very pleased with it's performance. Don't think I can go wrong with this additional Panamax purchase especially at such a great deal from Crutchfield. [ William  Dec 29, 2015 ]
protection/price [ Robert  Dec 17, 2015 ]
Name brand and reviews [ Matthew  Dec 09, 2015 ]

5 questions already asked

Hello, all outlets are filtered and protected from the input plug but, the LAN and Coax are just surge protected because they're digital connections. For more information on levels of protection please look up the data sheet on the unit. [ New User  Jun 12, 2018 ]
The coaxial and/or LAN input & output can be used to protect your incoming cable Internet signal from carrying damaging surges while maintaining full high-speed bandwidth to your equipment. For more details or to discuss further, please contact an Advisor directly by phone (888.955.6000) or online chat. Thanks! [ Larry  Apr 16, 2018 ]  Staff
I am not sure, but my house was built in the 1980's. It has perfectly fine. I would recommend it for protection against surges. I have (3) Panamax units and they are worth the money versus buying new electronic components. And I have used Panamax since 2004. [ Judy  Mar 02, 2018 ]
no I did not, the product works well. [ JOEL  Mar 02, 2018 ]
I have all my components powered through the Panamax MR4000 including a Sony STR-DN1040 AVR. The AVR goes into standby mode with no issue. My Sony TV is connected to my AVR via an ARC HDMI line. When I hit the TV button on the Verizon remote it turns both TV and AVR on/off simultaneously. MR4000 doesn't have any influence on that part of the equation. [ John  Jan 25, 2017 ]
Thanks for your question. Absolutely, Crutchfield is an authorized retailer of pretty much everything they sell, including Panamax. Your product includes free lifetime technical support as well, so any issues whatsoever, just let us know. [ Kenny  Jan 26, 2017 ]  Staff

Looking for more? Check out the next model in this lineup.

Panamax MR4300

Protect your system in more ways, and get the peace of mind of a front-panel voltmeter display.

The Panamax MR4300 offers these features:

total of 9 AC outlets — 8 rear, 1 front

two isolated banks to reduce inter-component interference

Linear Level 3 EMI/RFI noise filtration

second set of coaxial RF connections

one set of in/out RJ-11 phone line connections

front-panel digital voltmeter

two rotatable front-panel lamps to illuminate an equipment rack