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Hifonics HFi1500D

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General Features

  • HFi Series Single Channel Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 500 watts x 1 chan.
    • 2 ohms: 1000 watts x 1 chan.
    • 1 ohms: 1500 watts x 1 chan.
  • Pulse Width Modulated MOSFET power supply
  • Wired remote bass level control included
  • LED power (green) and protect (red) indicators
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Dual speaker terminals simplify the hookup of multiple speakers
  • Heavy duty aluminum alloy heat-sink
  • Input sensitivity: 200mV - 6V
  • Frequency Response: 15 - 250 Hz
  • Total Harmonic Distortion & Noise: <0.05
  • Signal to Noise Ration: >95 dB
  • Damping Factor: >200
  • Variable low-pass filter: 30 - 250 Hz, 24 dB/octave
  • Subsonic filter: 15 - 35 Hz
  • Variable Bass Boost: 0 to +10 dB bass boost at 45 Hz
  • Fuse Rating: 70A x 2
  • 4 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.
  • Dimensions: 8.82"W x 14.65"L x 2.4"H
  • Authorized Internet Dealer
  • 90 Day Manufacturer's Warranty

Check out the Hifonics HFi1500D Owner's Manual


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
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
90 days
Labor Warranty Duration
90 days
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Average Attribution Rating

Browse 12 questions and 56 answers
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Why did you choose this?
Sonic Electronix Store
Heard good things about hifonics
jordan o on Dec 13, 2016
It's a really great amp. N has so much power
I recommend it to anyone wanting to buy an amp with power N cheap
jorge o on Dec 9, 2016
I choose this amp based on the needs of my subs, and the price was good as I looked at many sites and the reviews were very good
Zac D on Dec 11, 2016
Good price & good quality
Quan J on Nov 28, 2016
Does my Hifonics HFi1500D 1500 watts Amplifier have a fuse inside it?
A shopper on Jul 27, 2015
Best Answer: The fuses are located on the outside of the amp.
Reply · Report · Jackson S on Jul 31, 2015
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Does this work good with a single Alpine SWR 12D2? and seal box or ported box for the sub? Please help me out with your opinion and knowledge. Thank you
Mon21 on May 3, 2016
Hifonics HFi1500D
Hifonics HFi1500D
Atrend 12SQL
Atrend 12SQL
Alpine SWR-12D2
Alpine SWR-12D2
Atrend 12SQV
Atrend 12SQV
Best Answer: As far as boxes go I built a sealed box to speck and was not vary happy with it, then I bought the sealed atrend 12ql and it sounded a little better. But after buying a ported box for it there was no going back!!! It is one of the best sounding subs I have ever heard in s ported box .
Reply (1) · Report · alec H on May 3, 2016
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i have alpine sws 15d2. is it ok for me to wire it at 1ohm load on this amp ?
Jay J on Jun 3, 2015
Best Answer: Hello Jay,

As the description suggests, you 'can' wire down to 1ohm. However, its not very wise to do so as the figures dramatically exceed that of the SWS-15D2 . So, in our opinion, it is not "ok" .
Reply (2) · Report · Rick MStaff on Jun 4, 2015
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I just purchased this amp.. hifonics has always been great.. I bought it to power the new 2014 Memphis mojo 12'' 2ohm it seems like it is pushing good but my sub sound scratchy at low volume and just before the beat hits sometimes the amp will protect and then come out of protect when I turn the bass knob down all the way.. not sure whats going on here?
nicholas s on Aug 27, 2014
Best Answer: If your subwoofer sounds scratchy, it is possible that the subwoofer coil is scraping the magnet. (The woofer may be bad). If you have a Voltmeter, check the resistance of the woofer and make sure it is close to 2 ohms. (1.8 - 2.2 ohms approx is okay). Any resistance outside of what the amp is rated for will blow the amp.

It is possible that the amp and sub were not tuned correctly and listening to music too loud melted the coils of the woofer (resulting in the scratching sound and low resistance of the woofer causing damage to the amp as well)

If the woofer is okay with the correct resistance, then check all the wiring and make sure the + and - are connected the right way.

If everything seems okay, then the amp may be bad, although highly unlikely.

Best of luck! Let me know if you have any more questions.
Reply · Report · Adam H on Aug 27, 2014
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i have two 12 inch kicker comp r's in a ported box they are 500 rms and 1000peak each so 1000rms and 2000 peak should i use this amp at 1 ohm or get the 2000 wat hiphonics?
matthew l on Jul 2, 2016
Best Answer: Yes this amp will work well. Just remember that at 1500 watts is close to 125 amps draw from your cars electrical system
Reply · Report · Knowitfixit on Jul 2, 2016
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Wil this amp blow my sub wired for 2 ohms it's an l7 15 inch?
A shopper on Mar 26, 2016
Best Answer: I have it pushing a cvx 15 at 2 and I sometimes feel like I could get away with more watts but my box is super thick I don't think it lets the sub do what it should
Reply · Report · Kenneth T on Mar 26, 2016
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Roger “ on Dec 10, 2015
Best Answer: Yes, this should work. I have mine hooked up to two Sundown E-12s (500W RMS each) at 2 ohms and haven't had any issues. Clean power for a low price.
Reply · Report · Josh V on Dec 10, 2015
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Would this amp work for 2 rockford fosgate R2d4 10's?
Michael M on Mar 1, 2015
Best Answer: Hello Michael,

Two Rockford Fosgate R2D4-10 will be asking for ~500w RMS @1ohm (Parallel) or @4ohms (Series/Parallel) . This means the HFi500D is a good match, and the subs MUST be wired in Series/Parallel to a 4ohm load.
Reply · Report · Customer SStaff on Mar 1, 2015
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Will this amp be a good fit for 2 kickers 400 rms 2 ohms each??
Chango R on Feb 29, 2016
Best Answer: Hello,

Please specify the MODEL NUMBER of the subwoofers you are referring to, so we can provide an accurate response.
Reply · Report · Rick MStaff on Feb 29, 2016
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i have 2 12" re audio sexv2d4 the ones sold with the bass package you guys sell how should i wire it? Also what upgrades would i need for a 99 civic ex coupe to run all the power?
Currently stock electrical system new alternator with lifetime warranty
ronnie on Dec 26, 2015
Best Answer: Hi Ronald,

The wiring is up to you, your installer and/or what the install allows. You have two options, below is the most common. (Note: Neither option is "better" than the other.)

(Yes, we know your amplifier has two outputs. Yes, you only need to use one pair. No, it won't make a difference using both.)

As for upgrades, we cannot accurately determine that for you. Your current system would need to be tested by an installer or mechanic. What we can say, is that you MIGHT need an upgraded primary battery OR a small auxiliary battery. Also, "lifetime warranty" doesn't come into play here, so we aren't sure what you are trying to convey there. Lastly, there is a small chance you may not need an upgrade at all, so plan accordingly.
Reply · Report · Rick MStaff on Dec 27, 2015
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Product Summary


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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: Hifonics HFi1500D