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Panamax M5300-PM

Power line conditioner and surge protector

Item #: 299M5300PM

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Back of Panamax M5300-PM

Four isolated AC outlet banks help prevent inter-component interference and noise contamination. You get 11 AC outlets, plus in/out sets of coaxial, LAN, and phone line connections.

Protect your equipment and improve its performance

The Panamax M5300-PM does more than just protect your audio/video system from harmful power spikes. It also smoothes out minor current fluctuations and effectively eliminates electronic interference, giving you clear, pristine picture and sound. The M5300-PM can safeguard up to 11 components, and it includes a protected front-panel USB jack for your MP3 player, cell phone or another portable electronic device.

Clean power for high-performance audio/video gear

This power conditioner has ten AC outlets on its back panel, divided into five isolated banks to minimize cross-interference between your components. Two of the outlets accommodate high-current components, such as an amplifier and powered subwoofer. These switched outlets operate on a delay to prevent "speaker thump" when powering your system on and off. A front-panel digital voltmeter and ammeter let you closely monitor the AC power coming into your system.

Ethernet and Coaxial RF protection

The M5300-PM also has two sets of protected Ethernet jacks, including one jack on the front panel, so you can surf the web without worry of power surges. A pair of protected telephone jacks prevents spikes from coming in through your phone line, while three sets of coaxial terminals shield your satellite, cable TV and antenna connections

Product Highlights:

  • 11 AC outlets with 5 isolated banks:
    • two isolated banks of two switched outlets
    • two isolated banks of two always-on outlets
    • one isolated bank of two switched high-current outlets with delayed on/off
    • one front-panel convenience outlet
  • front-panel USB charger
  • surge and over- and under-voltage protection
  • filtration circuitry virtually eliminates line noise
  • three sets of coaxial RF connections for cable/satellite/TV antenna
  • two sets of RJ-45 Ethernet line inputs and outputs, including one front-panel connection
  • RJ-11 phone line input and output
  • 12-volt trigger input for delayed outlets
  • front-panel digital voltmeter and ammeter
  • 2125-joule surge protection
  • maximum current rating: 15 amps
  • 17"W x 4-1/4"H x 14-1/4"D
  • 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)

Hands-on research

What's in the box?

Download owner's manual

  • Surge suppressor/power line conditioner with detachable 10' AC power cord
  • 2 Rack mount brackets
  • 4 Machine screws
  • 4 Plastic washers
  • 42" coaxial cable
  • 48" Ethernet cable (has an RJ45 connector on each end)
  • 49" Telephone cable (has an RJ11 connector on each end)
  • Owner's Guide (English/Spanish/French)

Product Research

Controls And Indicators


11 AC Outlets: The Panamax M5300-PM features 1 front-panel "Always On" AC outlet, 4 rear-panel "Always On" Linear Filtered outlets divided into two separate banks, 4 rear-panel "Switched" Linear Filtered AC outlets also divided into two separate banks, and 2 rear-panel "Switched/Delayed High Current" AC outlets.

  • High Current Outlets: The unit's two High Current Outlets provide power from a low impedance noise filtration circuit that does not limit the current to your equipment. Its output is noise isolated from all of the other outlets.
  • Linear Noise Filtration Outlets (Switched): The unit's four switched Linear Noise Filtration Outlets are divided into two separate banks and are controlled by the front panel Power Button or the DC Trigger input. These outlets will turn on immediately and turn off after 10 seconds. LiFT EMI/RFI noise filtration is provided by a two-stage balanced Pi filter which also provides noise isolation from the other outlet banks.
  • Linear Noise Filtration Outlets (Always On): The units four "always on" Liner Noise Filtration Outlets are divided into two separate banks and will only power off during a fault condition (under-voltage/over-voltage). Power is cleaned from these outlets by a two-stage balanced Pi filter which also provides noise isolation from the other outlet banks.
  • Gaming Outlet: The M5300-PM features a convenient AC outlet located on the front-panel for connecting your gaming system temporarily.

Level 4 Power Leaning And Filtration: Level 4 Power Cleaning and Filtration eliminates common symptoms of contaminated power (including loss of detail, pops, hisses, hums and visual artifacts) and allows your A/V equipment to perform up to its full capability.

Automatic/Visual Voltage Monitoring Circuitry: Panamax's patent pending AVM circuitry continuously monitors the incoming power as displayed on the unit's digital voltmeter. In case of an under-voltage or an over-voltage, a flashing red lightning bolt will be displayed in the voltmeter, and power to the connected equipment is automatically turned off if either of these conditions is detected. When voltage returns to a safe level, power to the equipment is automatically reconnected.

Cross-Contamination Reduction: The M5300-PM is designed to provide noise isolation between 5 isolated outlet banks (including 1 bank with 2 high current outlets) so that any noise created by an A/V component cannot contaminate the power going to equipment plugged into another outlet bank

Power Sequencing: The M5300-PM features Power Sequencing to guard against blown fuses and potential damaging speaker thump by automatically power outlets on and off in sequence. This feature minimizes in rush current issues by allowing the components plugged into the Switched Outlet Banks to power-up and stabilize before any amplifier and powered subwoofers are turned on. This sequence is reversed during shutdown. The amplifier and powered subwoofers turn off, their power supplies drain and then the equipment plugged into the Switched Outlet Banks are turned off.

Voltage Sense Trigger Input/Output: The M5300-PM voltage sense trigger input and output uses a standard 3.5mm (1/8") mini-mono plug. This feature provides an On/Off trigger for the M5300-PM using a direct current voltage signal. You can connect the DC Trigger Input to a remote trigger device that uses a DC output to trigger a start-up/shutdown sequence. The DC Trigger Output can be connected to a remote trigger device that uses a DC trigger input to pass the M5300-PM's startup/shutdown sequence to an additional device.

HD Ready Coax Jacks: The unit's bi-directional coaxial protection circuits achieve optimum signal quality from newly designed connectors that have less than 0.5 dB of attenuation from 0Hz to 2.2GHz. The unit's clamping level of 75V will meet the demands of both cable and satellite voltage while minimizing exposure to damaging spikes and surges.

Phone Jacks: The unit features an RJ-11 input and output for protecting your standard telephone or pay-per-view lines. The Phone circuit is auto-resetting.

LAN Jacks: The M5300-PM is equipped with two RJ-45 LAN inputs and one RJ-45 LAN output on it rear panel; and a bi-directional RJ-45 LAN jack on its front panel. The LAN protection circuits are designed for 1-/100 baseT Ethernet lines. The front-panel bi-directional LAN jack is an Ethernet pass-thru connection between the units front and rear panel. The front panel LAN port is also great for on-line gaming.

USB Charger: The M5300-PM features a front-panel USB type-A port for charging your MP3 player, cell phone, or other small electronic.

Digital Voltmeter: The M5300-PM features a front-panel Digital Voltmeter which monitors the voltage supplying your home theater equipment. If line voltage drops below 90VAC, or if the line voltage exceeds 142VAC, the display will turn off and the "unsafe voltage" indicator will flash indicating and unsafe voltage condition.

Digital Ammeter: The M5300-PM features a front-panel Digital Ammeter which shows the actual current draw (0-15A) of the connected components system, giving you a visual reference as to how your system is functioning under a variety of conditions.

Outlet Bank Power LEDs: Each bank of outlets feature a corresponding Blue LED indicator. These LEDs indicate the status of the corresponding rear panel outlets. The LED will be lit when the outlets are turned On. They will flash during the startup and shutdown process.

Circuit Breaker: A circuit breaker is located on the back panel of the M5300-PM. 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.

$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.

Controls And Indicators

Front Panel:

  • Power Button: Powers Bank 3, 4 and 5 outlets on and off.
  • Dimmer Button: Adjusts brightness level of unit's front panel lights and voltmeter.
  • Digital Voltmeter: Digital LED voltmeter indicates the incoming line voltage.
  • Digital Ammeter: The unit's Digital Ammeter shows the actual current draw (0-15A) of the connected component system.
  • Outlet Bank Power LEDs: Bank 1, Bank 2, Bank 3, Bank 4 and Bank 5 each have a corresponding LED indicator to indicate they are turned on.
  • Wiring OK: This LED illuminates to indicate that the wall outlet is properly grounded and Line/Neutral polarity is correct.

Rear Panel:

  • Circuit Breaker: Resets M5300-PM.
  • Bank 1 & 2 On LED: This LED illuminates when there is power present on the Bank 1 and 2 receptacles.


Front Panel:

  • AC Outlet: Front panel outlet for gaming systems.
  • USB: USB port for charging portable devices such as MP3 players or cell-phones.
  • LAN: Bi-directional Ethernet pass-thru connection between the front and rear panel.

Rear Panel:

  • Linear Filtration Always On Bank 1: always on linear filtered outlets labeled DVR and VCR/AUX.
  • Linear Filtration Always On Bank 2: always on linear filtered outlets labeled HDTV/Monitor and HD Cable SAT.
  • Linear Filtration Switched Bank 3: Two switched outlets with linear filtration controlled by the front panel Power button or the DC Trigger input labeled Digital Radio and Pre Amp.
  • Linear Filtration Switched Bank 4: Two switched outlets with linear filtration controlled by the front panel Power button or the DC Trigger input labeled CD and DVD.
  • High Current Switch Delayed Bank 5: Two switched, high current outlets controlled by the front panel power button or DC Trigger input labeled Receiver and Sub/Amp.
  • Voltage Sense Trigger Input: 3.5mm mono mini-plug which connects to a remote trigger device that uses a DC output to trigger a startup/shutdown sequence.
  • Voltage Sense Trigger Output: 3.5mm mini-plug output which allows the input signal to pass through the M5300-PM to control the start-up/shutdown of an additional device.
  • LAN Jacks: Two RJ-45 inputs and  RJ-45 output for 10/100 baseT Ethernet lines.
  • Phone Jacks: One RJ-11 input and one RJ-11 output for standard telephone lines.
  • Coaxial Jacks: 3 pairs of bidirectional threaded female F-type coax terminals
  • Ground Lug: Gold-plated binding post that provides a common grounding point for equipment with separate ground leads.


AC Power:

  • Line Voltage: 120VAC, 60Hz
  • Maximum Current Rating: 15A
  • UL 1449 Surge Suppression Rating: 330V
  • Protection Modes: L-N, L-G, N-G
  • Initial Clamping Level: 200V
  • Joule Rating: 2125 Joules
  • Peak Impulse Current: 72,000A
  • EMI/RFI Noise Filtration:
    • Banks 1, 2, 3, 4: 80dB, 100KHz-2MHz
    • Bank 5 (High Current): 60dB, 100KHz-2MHz
  • Over-voltage Shutoff Threshold: 142V (+/-8)
  • Under-voltage Shutoff Threshold: 90V (+/-2)

DC Trigger Input:

  • Jacks: 3.5mm (1/8") mono mini-plug
  • Voltage And Polarity: 3-24V DC, bidirectional
  • Current Requirement: 4.5mA @ 3V, 58mA @ 24V

DC Trigger Output:

  • Jacks: 3.5mm (1/8") mono mini-plug
  • Pass Through: no delay

LAN Protection:

  • Clamping Level: 52V
  • Connectors: RJ-45
  • Wires Protected: 8 wires

USB Circuit:

  • Jacks: USB-A
  • Power Delivery: 500mA @ 5VDC

Telephone Protection:

  • Clamping Level: 260V
  • Capacitance: approximately 30pf
  • Suppression Modes: metallic and longitudinal
  • Connections: RJ-11
  • Wires Protected: 2 wires (4&5)

Universal Cable and Satellite Protection:

  • Clamping Level: 75V
  • Insertion Loss: <0.5dB
  • Bandwidth: 0MHz - 2.2GHz
  • Connections: Gold-plated female F-type

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Panamax M5300-PM Reviews

Average Customer Review:

15 reviews
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Panamax M5300

Written By Lann, Wyoming, PA on Saturday, October 04, 2014

Crutchfield Customer Review (What's this?)

Does exactly as advertised. Protects equipment. Cleans current and also offers a ground connection for your other components.

Pros: Easy hook-up.

Cons: None


Written By Ryan, Panama on Wednesday, July 16, 2014

Crutchfield Customer Review (What's this?)

I conduct acoustic research and found that my amplifiers would "drift" generating higher or lower amplitudes during the night.a huge problem for my experiments. I suspect this is due to poor grounding and lots of voltage fluctuations in the electrical system. After plugging my amps into this unit, they have remained absolutely steady! I'm very impressed with this unit!

panamax m5300-pm

Written By MC, ga on Monday, July 07, 2014

Crutchfield Customer Review (What's this?)

my sound and pic is much cleaner

Pros: it had every thing in needed and no problem to hook up. very pleased

Cons: none


Written By tpop, NE PA on Tuesday, June 03, 2014

Crutchfield Customer Review (What's this?)

great features for the price

Pros: room for all componnents; front plug -ins; amp and volt gauges; high level of protection

Cons: if I have to come up with one - large size

Panamax M5300-PM

Written By TERENCE, FLORENCE,SC on Monday, January 13, 2014

Crutchfield Customer Review (What's this?)

One of the very best surge protector/line conditioners i've ever used.

Pros: controls voltage swings

Cons: none

Excellent product

Written By Anonymous, Portland Oregon on Monday, September 23, 2013

Crutchfield Customer Review (What's this?)

Great product. I have an APC power conditioner and it is really good and I would recommend it. But the Panamax is a cut above. We had a tree fall and take out three power lines on Saturday and no issues with a surge with either the Panamax or APC. I subjectively feel that the Panamax does give a better pix then the APC. also I have all the plugs I would ever need. One knock is it seems like the Comcast cable box will not play well with the Panamax coax connection but I figure that Comcast owns that box so I don't care. My APC did not have coax connection.

Pros: Plenty of connections. Eithernet front and back. Cool look. Easy set up. Bottom line if you have high end gear you need this protection and improves picture.

Cons: Does not play well with Comcast box. Also not a con but be sure to measure the width, it did fit in my place but it was tight.

Just what the doctor ordered

Written By Big Daddy, toledo on Thursday, January 10, 2013

Crutchfield Customer Review (What's this?)

Great looking unit. Replaces an older monster one. Compared quite a few, decided on the 5300. Not sure of the audio improvement yet, but can see a noticable improvement in video. Waiting on a pair of def tech 8060 s , will be able to try the high current outlets then. Really like the ability to dim the front display. By the way the blue lights match all of my componets, cool. Very well made and feels like it. Would highly recommend.

Pros: Love the 11 outlets! Nice to protect ethernet connections. Seperate power banks.


Great Product

Written By James R., Orlando, FL on Monday, September 24, 2012

Crutchfield Customer Review (What's this?)

After a good deal of research, I landed on Panamax ... many reviewers stated that it was a solid product, comparing it to more expensive products and having the same features. I looked at both user, and professional reviewers, and when I learned that Panamax was a sister to Furman, it sold me. I've been using Furman equipment as a live performer for years, and their products have always been rock solid ... so this was a great selling point. The only thing left was to choose which of their lineup was appropriate for my application. The 5300 was a great choice for my AV system at home, and after using it for a couple weeks, I have noticed a marked difference in my video, as well as the way my system units operate.

Pros: Flexible, solidly built and straightforward in its use

Cons: None

Panamax M5300-PM

Written By Scipio.V., Sabana Grande, Puerto Rico on Tuesday, February 21, 2012

Crutchfield Customer Review (What's this?)

Have constant lighting problems in rural area for many years. The Panamax worked like a charm, cutting off the power when the latest brown outs which would've easily damaged my electronics. I had 2 of them working at the same time when this happened and am satisfied.

Love it, but have a wish...

Written By Lesio, San Jose, CA on Thursday, September 15, 2011

Crutchfield Customer Review (What's this?)

This is great product, the switched outlets switch great on 12V DC control, the round blue dispay windows complement my Marantz receiver almost perfectly... one wish: the brightness of the display to be auto-sensitive to the ambient light, I am not kidding, for that much money today, I think that is a small feature to ask for... Note: DC controls specifically say 3.5 mm mono cable, stereo cable does NOT work here.

Nice piece of equipment

Written By Tom, Rochester NY on Tuesday, July 05, 2011

I moved a component rack to the corner in the living room. That, of course, necessitated a second power conditioner/surge protector for the components (Denon 3311, Sony BR, CD Jukebox, Cable Box, Ethernet Switch, and Zone 2 amp).

Wanted a component-style unit so didn't have to mess with squeezing a strip-type behind components on a shelf or on the floor behind the rack. The direction of the outlets was also an issue, because I have a block plug (Ethernet switch), and that ruled out a few which have sideways outlets.

After some indecision, finally settled on the 5300, so I'd be set if I do ever bring everything back together on one stand/rack. And the block plug is no issue.

It is well-built, obviously quality construction, and I have no doubts that from the protection perspective, I'm good to go. Which leaves the age-old "does it really improve performance?" question.

Because of my setup, I can't really determine if video is improved, since the TV is on a separate conditioner. Picture does seem a bit clearer, though that may be my imagination (we all see/hear what we want to when we buy new toys). But for audio, yeah there is a definite improvement. Clarity is better overall, both for CD stereo and surround sound -- and most noticeable is the bass on DefTech 7004s, much cleaner and defined.

I would definitely recommend this unit, well worth the price.

Superb Power Conditioner

Written By Tom K., Mission Viejo, CA on Thursday, March 31, 2011

Crutchfield Customer Review (What's this?)

I already had a good surge protector, but with a lot of expensive equipment
plugged into it, I decided to go for a component power conditioner that would
work under any circumstance. I had 2 Panamax units in mind, the M5100 and
the M5300. While I'm sure the 5100 would have worked just fine, there were a
few more features with the 5300 that made the unit stand out that much more.
You can select which units you want on all the time and units that can go off or
on with the main power switch of the power conditioner.

I honestly thought the idea of "clean power" was a sales gimmick, but I have
noticed a cleaner look on some of the non-hd channels on cable.

Having all my home theater components plugged into the Panamax M5300
provides peace of mind knowing everything is protected.

It's a superb power conditioner which I highly recommend.

excellent unit

Written By glenn, michigan on Wednesday, January 14, 2009

Crutchfield Customer Review (What's this?)

The unit is very well made. There are more features than I need( plugs). As soon as I connected my DTV and sony XBR to the unit the picture improved. So there you have it......the power condition works. The only thing I wold have done differently is to turn off all of the front panel lights when the unit is shut down. Good job Panamax.

Well made and does it's job... for the most part

Written By cimpala, Boston, MA on Friday, November 21, 2008

I've had this unit for about 2 weeks now. Looking at the functionality, it has two main features. They are power conditioning and surge protection. I can't tell if there is any "power conditioning" going on, as everything looks and sounds the same as my older Monster Power Center. Nothing is worse though. I'm sure it's protecting my equipment and if it's not there is a great warranty and protection plan. What I can say is that it is very well made, sturdy, and good looking. However, the lights on the front are bright. You can turn them down but not off. I find that if they are all the way up you can read it, but it is distracting. If you turn them down it makes it hard to read. I am not sure what it is (maybe the lit rings) but the numbers are difficult to read at any light level. I am comparing this to looking at the displays of the rest of my equipment. I can read those fine. Another point to note is the USB charging port. It will charge my mp3 player, but not my phone. My phone will charge if I plug it into my computer though. I bought this unit for a few reasons: I like how it displays both volts and amps, it is rack mountable, and it has plenty of outlets (the one on the front is great). It works. If you can get a good deal, it's worth a look.

Feel safer already

Written By Randy, Los Angeles, CA on Saturday, September 27, 2008

Crutchfield Customer Review (What's this?)

You never know what can happen in earthquake this Panamax offers us some peace of mind. In a state where you never know what the electricity will do either, it's nice to know our AV equipment is well protected by this stellar surge protector. Doesn't hurt that it's cool looking too!

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Panamax M5400-PM


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Get voltage regulation for optimal power levels

The Panamax M5400-PM regulates voltage output to maintain a consistent flow of current at the best level for your system's performance.