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Boss PH2.500

1000W Max Phantom Series 2-Channel MOSFET Power Amplifier with Remote Level Control

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List price $199.99

$69.99

with warranty

You Save: $130.00 (65.00%)

Arrives by Thursday, Aug. 7 to zip 07095

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Bundled Savings with this Product

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50% off NVX 2-Channel RCA Cables w/ purchase!

Save 50% off the NVX XIN25 2-Channel RCA Audio Interconnect cables with your purchase! You will need RCA cables to install your amp! You pay only $5 for a sweet set of RCAs from a premium brand!

4.50

21828

426

Boss PH2.500

$69.99

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NVX XIN25

$8.99

Special Price $4.49 ($8.99 if purchased separately)

NVX XIN25

• Shielded Coaxial Conductors for Solid Performance • Compact, Stylish RCA Body • Chrome Ends

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$74.48

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  • Phantom Series 2-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 200 watts x 2 chan.
  • Max Power Rating:
    • 2 ohms: 500 watts x 2 chan.
    • Bridged, 4 ohms: 1000 watts x 1 chan.
  • Max power output: 1000 watts
  • MOSFET PWM Power supply
  • Wired remote bass level control included
  • LED power and protection indicators
  • Trimode operation to connect a pair of speakers plus a subwoofer on one pair of output channels
  • Variable 0 +/- 18 dB Bass boost
  • Thermal and speaker short protection
  • Heavy duty black anodized heatsink
  • Soft turn-on circuit
  • Remote turn-on/turn-off circuit
  • Gold-plated RCA High and low level inputs
  • Gold-plated screw terminals
  • Variable high-pass crossover (50-150 Hz)
  • Variable low-pass crossover (45-90 Hz)
  • Frequency response: 9-50,000 Hz
  • Dimensions: 9-1/2" D x 9-1/2"W x 2-1/4"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year Manufacturer's warranty

Power Specifications - Full Range Channels

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 speakers or subwoofers 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.

200 watts x 2 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

400 watts x 1 channels
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison.

500 watts x 2 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.

AB
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.
2
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.

1000 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.

400 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.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
4 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
.01%
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.
Yes
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.
No
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)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below 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
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.

45 - 90 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.
103 dB
Channel Separation
Also referred to as crosstalk. The amount of interference on one stereo channel caused by the leaking of the other stereo channel. The higher the rating in decibels (dB), the better the Channel Separation.
90 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.
Yes
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).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
20A x 1 
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.

No

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
76%
4 Star
10%
3 Star
5%
2 Star
5%
1 Star
5%

Average Attribution Rating

Durability
4.3
Value
4.5
Features
4.2
Design
4.5
Usability
4.5

Bigmac

Cairo, MO

Overall
Durability
Value
Features
Design
Usability

Good deal

April 21, 2011

I bought this amp secondhand. I've used it to push 2 Pioneer 10s, and they beat pretty hard. I've also had 2 Kicker CVR 12"s, and they DOMINATED WITH IT. A great value.

2 of 2 found this helpful

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Pharnswurthe

Edmonds, WA

Overall
Durability
Value
Features
Design
Usability

Alright

December 17, 2012

Drives a pair of 600w 10s without breaking a sweat. Remote bass level knob is useless.

0 of 0 found this helpful

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Noah

santa rosa beach, FL

Overall
Durability
Value
Features
Design
Usability

Amp-

September 10, 2012

i have 2 12" kicker comp with a ported box, this amp is more powerful than i thought it would be. It never over heats or messes up. I have had it 6 months, all is well.

0 of 0 found this helpful

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Twistedmind23

Hamilton, ohio

Overall
Durability
Value
Features
Design
Usability

Some advice

June 15, 2012

I'm lookin to put another system in my s10 and was lookin to get the boss ph2.500 amp to push 2 12" Rockford Fosgate R1 speakers. Just tryin to find out some advice as far as the amp. Give me the good an the bads thanks.

0 of 0 found this helpful

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Pablo

Winnemucca, NV

Overall
Durability
Value
Features
Design
Usability

like!!!

June 9, 2012

Its a nice sleek looking amp. It is powering two JL Audio 10" subs pretty well without problems. I Realy like the red glowing phantom letters it has when powered on.

0 of 0 found this helpful

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David

Bronx, NY

Overall
Durability
Value
Features
Design
Usability

So much power for the price

February 27, 2012

I have this amp kicking on two 10" powerbass PS-WB10 and let me tell you, they sound amazing. If you are looking for something GREAT for cheap this is the one to get.

0 of 0 found this helpful

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Torredo

Adelanto, CA

Overall
Durability
Value
Features
Design
Usability

Low price for decent power

January 4, 2012

Installed this in a Tacoma 4door with a custom made enclosure holding a Pioneer 12" shallow mount sub. Like the bass control which was mounted under the dash.

0 of 0 found this helpful

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Zach

Nashville, TN

Overall
Durability
Value
Features
Design
Usability

Exceptional deal!

December 22, 2011

I purchased this amp to replace an old amp in my truck. I was on a budget but this is well worth the money. I have had it six months and not a single problem pushing my two 12's (can't keep my rear view on). Its slim design allows for placement pretty much anywhere (under my front seat). I would highly recommend this to anyone and everyone!

0 of 0 found this helpful

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Andrew

Reno, NV

Overall
Durability
Value
Features
Design
Usability

no

December 15, 2011

Don't get. I have a Kicker S10L5 and it can barely power it. Do not recommend.

0 of 0 found this helpful

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Scott

Tinley Park, Il

Overall
Durability
Value
Features
Design
Usability

Good power to two 6x9's

December 13, 2011

I am using this to power two 175 Watt RMS Vibe 6x9's and so far it sounds very good! This is a great little amp, especially for the price! I believe the actual power it puts out is a little less than what it is rated at but it is still an excellent product! The finish looks a lot better in person than on the website pictures and the phantom letter look wicked in the dark.

0 of 0 found this helpful

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Luke

chinohills, ca

Overall
Durability
Value
Features
Design
Usability

Bang for your buck!!!

October 6, 2011

Ease of installation and use, not to mention the power. I used this in my Cadillac cts to test aftermarket subs, though very hard to set up the bose system for this, I came to the conclusion that it just wasn't meant to be. Due to the fact that the Bose system alters the bass signal when turned up, the amp control helped this significantly! But still to no avail was still un happy with the sound.. Though the system in my truck is complete, I sold this amp to a friend and installed it in his truck with the same head unit I have, and for being only 80 watts more than the amp I have in my truck, it shows. He was very happy with the results, disappointed that I couldnt keep it in my caddy it went to a home where it will be used often! Great amp for the money!!

0 of 0 found this helpful

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Ludski

Chicago, IL

Overall
Durability
Value
Features
Design
Usability

Great amp.

September 20, 2011

Great quality. (usually not common with boss things) pushed 2 150rms subs. So never really peaked it, but did a GREAT job of it. Great size as well. VERY durable. No heating problems.

0 of 0 found this helpful

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brett

riverton, illinois

Overall
Durability
Value
Features
Design
Usability

Good

September 19, 2011

Good product, would buy again.

0 of 0 found this helpful

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Chad

Hanford, CA

Overall
Durability
Value
Features
Design
Usability

Great bang for the buck !!

July 27, 2011

Amp is great!!!! Pushes my 2 Hifonics DVC 12's great!

0 of 0 found this helpful

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Seth

Saint Augustine, FL

Overall
Durability
Value
Features
Design
Usability

About this product...

June 21, 2011

It was amazing. Worked an powered two of my subs I bought from this company with ease.

0 of 0 found this helpful

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leprechaun

aliquippa

Overall
Durability
Value
Features
Design
Usability

awesome

March 3, 2011

Just got this amp today n put it in today let me tell u it pumps some power in my car. Its makin my two twelves smack hard all in all good buy

0 of 0 found this helpful

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James

Enid, OK

Overall
Durability
Value
Features
Design
Usability

Great Product

January 20, 2011

I bought this Amp for two 12" Rockford Fosgate punchs, and they sound great. I have no complaints about this Amp. If your looking for a great thump for a not alot of cost, then this is for you.

0 of 0 found this helpful

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Kyle

Buffalo, Ny

Overall
Durability
Value
Features
Design
Usability

Not Bad

November 10, 2010

This is a pretty decent product. It is a good starter amp and for the price you really can't go wrong. Don't expect to much out of it, but if your considering on buying it then you should be disappointed if it is what your looking for. Overall very happy with the product. Only thing I disliked about it is the power and ground terminals sometimes can come loose and that can be a pain.

0 of 0 found this helpful

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Nate

Saint Petersburg, FL

Overall
Durability
Value
Features
Design
Usability

Must Purchase Product!

October 1, 2010

I bought this amp for my 2 12" Pioneer Subs In my 2000 Chevy impala and must i say this product works just fine. I've had it for over 2 months now and have not had any issues so far, this is a must get item. Shipping was fast thanks to Sonic Electronix, I would definitely recommend this to anyone.

0 of 0 found this helpful

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Eric

Castro valley, CA

Overall
Durability
Value
Features
Design
Usability

Great product

August 2, 2010

I just installed this in my 2000 Chevy Tahoe for my 2 10s and this they sounds way better and deeper than before. I recommend it to anyone who's wants a good amp for a great price. What's cool about it is that the phantom letters light up red so it looks cool at night and I like the bass knob so they can hit louder or lower. Overall great buy easy to install with a 4 gauge wiring kit.

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

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 $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

Your Price $6.95

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

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

NVX XIV25 V-Series 2-Channel RCA Cable

16.4 ft 2-Channel RCA Audio Interconnect Cable with Twisted Pair Construction

Your Price $11.99

Kicker KI24 K-Series RCA Audio Interconnect Cable

4 Meters (13 ft.) 2-Channel K-Series RCA Audio Interconnect Cable

Your Price $16.95

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

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

Rockford Fosgate RFC1D - Top of the Line 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $104.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

AutoSound 2000 CD-104

Audiophile reference series test disc for evaluation of all audio components.

Your Price $11.99

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Product Summary

Manufacturer

Model Number

PH2.500

UPC

791489112055

Weight

7.00lbs

Internal SKU

ph2500

Internal Product ID

21828

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 PH2.500