Expert Service 1-877-289-7664 [Hours]

Back to School Deals

Boss PH5000D

5000W Max, Phantom Series Class D Monoblock Power Amplifier


6-Year Manufacturer's Extended Warranty When Bought Here!

We apologize

This item has been discontinued

Get FAST answers from customers ASK a Question See questions answers

Boss Audio Store

General Features:

  • Phantom Series Class D Monoblock Car Amplifier
  • Max Power Rating:
    • 2 ohms: 3500 watts x 1 chan.
    • 1 ohm: 5000 watts x 1 chan.
  • RMS power output: 1800 watts x 1 chan.
  • Mosfet PWM (Pulse Width Modulated) power supply
  • Wired remote subwoofer level control included
  • LED Power and protection indicators
  • Bass Boost allows further flexibility of the subwoofer with a variable of 0-18 dB
  • Variable input gain control for more precise adjustments
  • Remote turn-on/turn-off circuit
  • Soft turn on circuit
  • Input voltage sensitivity selector
  • Thermal, overload and speaker short protection
  • DataLink allows two identical Phantom Class D amps to be strapped togeather
  • Phase Shift selector
  • Black anodized heatsink
  • Gold-plated RCA low level inputs
  • Nickel-plated speaker and power terminals
  • Variable low-pass filter (50-150 Hz, 12 dB/octave)
  • Subsonic Filter (15-40 Hz, 12 dB/octave)
  • Frequency response: 40-150 Hz
  • Dimensions: 9-1/2"L x 18"W x 2-1/4H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount
  • Authorized Platinum Internet Dealer
  • 1 year Sonic Electronix, and 5 years Manufacturer's warranty

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
1800 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Phantom (Boss)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

5000 watts
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

1800 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
1 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
1 pair
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 150 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
15 - 40 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
100 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 18 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
40A x 2 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.


Warranty and Return Policy

Parts Warranty Duration
6 years
Labor Warranty Duration
6 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Lasted 1 month

November 27, 2011

Was awesome when it worked. But then it just quit in less than a month. Checked everything. Have to send it back to get fixed.

26 of 43 found this helpful

Was this review helpful to you?

el charly



January 26, 2014

al observar este amplificador, sesulta que es identico al mio el planet audio bb1400.1 chequen las imagenes de ambos y asta la distribucion de los ajustes es identica solo que el mio es mas realista 1400 rms a 1 ohm y 1900 watta max

28 of 51 found this helpful

Was this review helpful to you?


salem, OR

awesome amp

March 7, 2015

way more power than i thought i was going to get. grab it while you can

21 of 38 found this helpful

Was this review helpful to you?


Ellettsville, IN

Amazing Amp

November 3, 2014

My first glance at this amplifier scared me because I saw the feature "sub-sonic filter" (yes I understand it's supposed to help) but it seems contrary to what a subwoofer amp should do.

Once I received the amp, I realized how huge this thing is. This is running at 2 ohms into a sealed 2.? Box with a 15 inch boston acoustics subwoofer. SOUNDS AMAZING. It reproduces the 16-40 hertz with very clean sound.
Love the remote
I have also another amp (boss chaos 1100 watt) running out of the RCA outs, also works flawlessly

I was a little confused on how to get the wires in, but I figured out that you have to take an Alan wrench and take off the ends and then the terminals are accessible.

So far a great amp
Would recommend to ANYBODY

25 of 47 found this helpful

Was this review helpful to you?


little valley new york

good price good value

May 3, 2011

the amp is a good economical product. i am using it to power 2 Kicker L7 12's. the power is maxed out on it but my subs pound so. after about 6 months the amp burned up. so i am currently waiting to recieve it back from boss audio. overall it is a good amp for someone without a lot of cash.

26 of 49 found this helpful

Was this review helpful to you?

Cam Blankenship

adairsville, ga

Boss ph5000d

June 16, 2011

I recommend this amp if your looking for a good quality cheap amp. I love it.

22 of 42 found this helpful

Was this review helpful to you?


moncks corner, s.c.

killer deal

March 31, 2011

Although the power specs are overrated, and I based that on I x E =P, and a given 24volt surge from a 25farad capacitor and 160amp alternater, it is still an incredible amount of clean output for the price. Also the frequency response spec is inaccurate as the amp produces a clean signal down to twenty hz. I knew what I was I was buying well bfore I bought it, and it does perform very close to my calculated expectations. Very stable and clean. A bargain to the last watt.

21 of 40 found this helpful

Was this review helpful to you?




May 25, 2010

Not a bad amp for the money if you want to run your sub or subs at 2 ohm. This amp is not 1 ohm stable when you read the instructions, it says running at 1 ohm will damage the amp. I'm running 2 old school Cerwin Vega Stroker 15's in a big ported box and it actually pushes them pretty good, I was surprised, going to be using this until I can save up for a way better/bigger amp and see what these Strokers are all about.

23 of 45 found this helpful

Was this review helpful to you?


Roscoe, IL

Not true watts, but very powerful nonetheless.

April 19, 2012

I recommend this amp even tho I don't own this one I have the ph4000 my 4000 puts out 1320RMS at .6 ohm load on 3 dual 4 ohm subs, and pushes them loud and clean. The 5000 should probably be around 2000 watts RMS, and like I said about the 4, it's clean.

21 of 42 found this helpful

Was this review helpful to you?


Ocean Springs, MS

Not a bad amp

January 22, 2012

Had this amp for about 6 months pushing 2 phantom 12's at 1ohm and its still running strong, This amp DOES NOT get hot at all if you wire it properly. im running 2 gauge power and ground. However be warned the amp is very overrated. prob only does about 900w rms at 1ohm. the complete system i have sounds almost as good as my rockford fosgate system in 03 and i was running 868 rms bridged off the 801s amp. overall, not a bad amp if you want decent sound at a cheap price. my friends were impressed with my sound and were shocked when i showed them it was a boss set up.

ohh btw this amp is FOR SURE 1ohm stable, it says right in the manual that it is. The remote is for the gain on the amp, Not the bass boost like rockford amps. I ran the remote 1/4 of the way up and bass boost all the way up on the amp, and it sounded great and stayed nice and cool even after an hour of Lil Jon.

20 of 40 found this helpful

Was this review helpful to you?


eaton rapids

not what it says it is

March 14, 2014

im still deciding on recommendation. anyways i bought this and got two 2500watt subs RMS was 1200 for each supposdly. well i hooked both subs up to amp and over a few days the coils of the subs started to smoke n burned out. went out n got two xtant x1244's and hooked them up and they didnt even last a good 15 minutes till my whole system fried. amp went into protection mode aand wont come out even if i turn it off n back on. faulty amp possibly??? dont know.

21 of 44 found this helpful

Was this review helpful to you?


Spring Hill, TN


January 28, 2014

This amp was perfect for the amount of watts my system is pushing. I have two 10s and a 12 and the Boss PH5000D handled it better than i expected, I was impressed. For bigger sound systems this amp will do the job and deliver with smooth, full sound. I highly recommend this product.

18 of 41 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

Your Price $89.99

Stinger SK4641 4 Gauge Wiring Kit

Get a high quality amp kit from Stinger to get the most from your new amp!

Your Price $64.99

Belva BAK42 4 Gauge Amplifier Installation Kit

Great amps need great wire at a great price. This amp kit has everything you need!

Your Price $29.99

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $79.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $151.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

Browse 2 questions and 4 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
was again high watt fuses more pwer for 149
Carroll k on Jul 2, 2015
because i have a stereo from boss
Roy N on Apr 4, 2015
believe yhis will b a good amp
Derek S on May 3, 2015
Bonjour , site serieux et sans probleme je vous recommande .
vinck j on Apr 4, 2015
How many watts would this amp put out on a one channel four ohm speaker?
A shopper on Mar 12, 2015
· Add Answer · I Have This Question Too (0)

Product Summary


Model Number






Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Boss PH5000D