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Boss PH4.400

1600W Max, Phantom Series 4-Channel MOSFET Power Amplifier

5.0

(3 reviews)

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Specials with this product

  • Free Ground Shipping to the 48 statesdetails
  • Phantom Series 4-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 160 watts x 4 chan.
  • Max Power Rating:
    • 2 ohms: 400 watts x 4 chan.
    • Bridged, 4 ohms: 800 watts x 2 chan.
  • Max power output: 1600 watts
  • Bridgeable outputs
  • MOSFET PWM Power supply
  • Wired remote bass level control included
  • LED power and protection indicators
  • Variable 0 +/- 18 dB Bass boost
  • Trimode operation to connect a pair of speakers plus a subwoofer on one pair of output channels
  • 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
  • Fixed 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 13-7/16"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 ohms160 watts x 4 channels
RMS Power @ 2 ohmsN/A
RMS Power @ 1 ohmN/A
Bridged RMS Power800 watts x 2 channels
Peak Power Output400 watts x 4 channels
Amplifier Specifications
Amplifier ClassAB
Number of Channels4
Total Peak Power Output1600 watts
Total RMS Power Output640 watts
Maximum Input Gauge Size4 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance Bridged4 ohms
THD at Rated RMS Power0.01%
Speaker Level InputsYes
Preamp OutputsNo
Built-in CrossoverLow-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency50 - 150 Hz
Low-Pass Crossover Frequency45 - 90 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio103 dB
Channel Separation90 dB
Bass Boost0 - 18 dB
Bass/Gain RemoteYes
Fan CooledNo
Fuse Rating20A x 2 
CEA-2006 CompliantNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration6 years
Labor Warranty Duration6 years
Warranty ProviderManufacturer
Customer Review Summary for Boss PH4.400
Average Customer Rating is 5.0 out of 5 stars:
5.0
based on 3 Reviews
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Rating Distribution:
5 star:
.
100%
4 star:
.
0%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
5.0
Value
4.7
Features
5.0
Design
4.7
Usability
5.0
what's this?
Most Helpful Customer Reviews:
May 10, 2012 awesome
Review by
lahf from bridgeport, NE
Overall
Durability
Value
Features
Design
Usability
This amp from Boss is kickin' my Kicker 15 solo l3 perfectly, and still has some leftover power for my little tweeters. I give this amp an awesome!
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November 6, 2011 Good stuff!
Review by
JJ from Livermore, California
Overall
Durability
Value
Features
Design
Usability
This amp is awesome! It goes well with the subs and what not! If you want a good amp get this one! I havent had any problems with it either and I've owned it for 6 months!
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April 5, 2011 Good deal
Review by
Herb from Naptown, IN
Overall
Durability
Value
Features
Design
Usability
This amp is powering four 6.5 and a pair of 6x9, good deal 1600 watts for $115 can't go wrong
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Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
 ProductPriceAdd?
Kicker ZCK4Kicker ZCK4
Complete 4 Gauge Amp Wiring Kit with RCA Interconnect Cables and Speaker Wire!		$94.99
StreetWires ZN1K-04StreetWires ZN1K-04
4 Gauge (AWG) ZN1 Series Single Amplifier Installation Kit for Systems up to 1000 Watts		$37.99
Kicker PKD4Kicker PKD4
Dual Amplifier 4 Gauge Amp Installation Kit w/ Distribution Blocks		$119.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
 ProductPriceAdd?
Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install		$24.49
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction		$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
 ProductPriceAdd?
Kicker 4-Channel RCA Audio Interconnect CableKicker 4-Channel RCA Audio Interconnect Cable
4 Meters (13 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted-Pair, Hyper-Flex Technology		$21.99
Kicker X-Series RCA Interconnect CableKicker X-Series RCA Interconnect Cable
19 ft. of 4-Channel X-Series RCA Cable with dual twisted-pair conductors, hyper-flex technology, and gold-plated k-cut collars for excellent signal transfer.		$44.99
StreetWires ZN9 Series Interconnect CableStreetWires ZN9 Series Interconnect Cable
16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!		$99.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
 ProductPriceAdd?
StreetWires FB4StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing		$7.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs		$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.		$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
 ProductPriceAdd?
AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99
Main Product
 ProductPriceAdd?
Boss PH4.400Boss PH4.400$119.99

Product Summary

Manufacturer: Boss
Model number: PH4.400
UPC: 791489112116
Weight: 11.00 lbs
Internal SKU: ph4400
Internal product ID: 21823

Price Information

$299.99

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$119.99

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Customer Testimonial

I was slightly skeptical about my purchase because the price was much lower than I had originally planned to spend. I bought my speakers on a Thursday late morning and the speakers arrived at my doorstep the next day in perfect working order. Thanks for the great price and lightening fast shipping.

- Randy from Sacramento

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