Phoenix Gold Tantrum 400.4 T400.4


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Designed with an emphasis on earth shattering power, and exceptional sound quality through advanced engineering and efficient production technologies, the new Tantrum series amplifiers from Phoenix Gold break the barrier in affordable, high end car audio. In fact, every aspect of this line is new from the ground up! While affordability typically means sacrificing high performance features, the Tantrum series breaks new ground with its built-in options. For superior sound reproduction, the Tantrum 400.4 amplifier feature internal, defeatable 18dB per octave crossovers and is equipped with inputs that can be connected directly to a high power head unit for greater versatility. This series also offers an adjustable 18 dB Bass Boost at 45 Hz for that slam in your face bass. These amplifiers handle the demands of a high performance mobile audio system with maximum power and dependability. The PWM Mosfet power supply commands maximum output, even under intense heat, while the new thermally efficient heatsink design supplies improved thermal dissipation. This, combined with the built-in overload and thermal protection circuitry, provides safe and reliable performance. Optional LPL wired Low Pass Level control and RMD Remote Monitoring Display.


  • RMS Power: 50W x 4 @ 4 ohms
  • RMS Power: 100W x 4 @ 4 ohms
  • Bridged RMS Power: 200W x 2 @ 2 ohms
  • Thermally Efficient Heatsink
  • Timed Acoustically Integrated Muting (TAIM)
  • Differential RCA or Speaker Level Inputs
  • Tri-Linear Capability Allows Simultaneous Stereo and Bridged Operation
  • 18dB / Octave High-Pass, Band-Pass, and Low-Pass Crossovers
  • 40Hz to 800Hz Continuously Variable Crossover Frequency
  • Auxiliary Outputs Route Inverse Crossover Signals
  • Variable Twin-"T" Bass EQ Circuit Provides Up to 18 dB of Boost at 45 Hz
  • Optional RMD Remote Monitoring Display Port
  • Optional LPL Low Pass Level Controller
  • 2 Ohms Bridged Stable
  • Amplifier Type: Multi-Channel
  • Speaker Level Inputs: Yes
  • Preamp Outputs: Yes
  • Built-In Crossovers: HP/LP
  • Bass Boost: 0 - 18 dB
  • Frequency Response: 20-20,000 Hz
  • Dimensions: 16.75"L x 10.0"W x 2.23"H  
  • 1-year warranty 


Second Depth
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The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

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Average Attribution Rating



Vary nice

October 22, 2009

Yes I own this product as of right now I've had it for over two years and it has not failed me yet I"m now just trying to find out ways to hook it up in my house seeing as I don't have the car anymore so ya. Besides this this amp is a great buy and great for multi speaker use and a plus Sub use as well like it can handle multi use and does well in a sub department if you know what I mean lol it work the HBO out of my 800W Pioneer Premiers SVC but yeah other then this I can't say that there is one thing wrong with this amp :)

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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: Phoenix Gold Tantrum 400.4 T400.4

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Phoenix Gold Tantrum 400.4 T400.4


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