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Hifonics HFi1000.1D

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General Features:

  • HFi Series Single Channel Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 475 watts x 1 chan.
    • 2 ohms: 750 watts x 1 chan.
    • 1 ohms: 1000 watts x 1 chan.
  • Pulse Width Modulated (PWM) MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Wired HFR-3 remote bass level control included
  • Blue illuminated Hifonics badge
  • Soft start sound function
  • Preamp RCA outputs to daisy chain multiple amps
  • 4-Way System Protection circuitry (thermal, overload, DC, and speaker short protection)
  • Dual 12 gauge speaker output terminals simplify hookup
  • Heavy duty aluminum alloy vented heatsink for maximum heat dissipation
  • Silver nickle-plated RCA level inputs
  • Silver nickle-plated screw terminals
  • Four corner mounting ear tabs
  • Input sensitivity: 200mV - 6V
  • Frequency Response: 15 - 250 Hz
  • THD and Noise: <0.1
  • 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: 80A x 1
  • 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: 13-1/2"L x 8-13/16"W x 2-7/16"H
  • Authorized Internet Dealer
  • 90 Day Manufacturer's Warranty


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 11 questions and 46 answers
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Why did you choose this?
Sonic Electronix Store
Same as subs
Henry C on Nov 25, 2016
I chose this item because it had good reviews and id rather buy an item that people have confidence in. I alao learned that it is better to have a stronger amp than a weaker amp. Its not the best to have your amp running at %100 all the time so i needed to upgrade.
James C on Nov 20, 2016
True power
Grant M on Nov 25, 2016
Anthony Sr. S on Oct 23, 2016
will this be a good fit for an alpine type r 12" (only one) Anyone got a good idea for a wiring kit too?
trevor c on Jun 10, 2016
Best Answer: Hello there, i highly recommend the KnuKonceptz KCA 4 Gauge TRUE 4 Gauge Amp Kit Installation Wiring Kit
Reply · Report · Homar Y on Jun 10, 2016
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Will this amp power two 12 in subs?
DJ Duff on Dec 29, 2015
Hifonics HFi1000.1D
Hifonics HFi1000.1D
Kicker 07C124-2-Sub-Package
Kicker 07C124-2-Sub-Package
Best Answer: Hi Josh,

If you are Specifically referring to 2 Pack of Kicker C124 (07C124), then the amplifier is providing TOO much power. But, if you are speaking generally, then technically yes.
Reply · Report · Rick MStaff on Dec 29, 2015
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can the the amp hold a 2ohm subwoofer?
heather j on Sep 9, 2015
Best Answer: Hello Heather,

The amplifier provides a 2ohm Rating, implying that it is , like its other ratings, stable at that impedance. So, yes.
Reply · Report · Rick MStaff on Sep 9, 2015
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would this amp push 2 12"s?
pacat on Oct 13, 2016
Best Answer: Hello Kendrick,

This amplifier can push anything from one 1" to one hundred 20"s if you wanted to. The important part here, however, are the power ratings NOT the size. As such, we suggest revising your question, but instead provide the thread with the actual model number of the subwoofers (not a vague description.) Or you can give our sales team a call. =]
Reply · Report · Rick MStaff on Oct 13, 2016
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Will this work for a single P3d4-12 in a sealed box with ~1.0 cu ft?
hpurey on May 23, 2016
Hifonics HFi1000.1D
Hifonics HFi1000.1D
Rockford Fosgate P3D4-12
Rockford Fosgate P3D4-12
Best Answer: Yes it will work and sound quite good. It will be slightly punchy not being ported but I like the sound a lot.
Reply · Report · tim t on May 23, 2016
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Powering one P3d4-12 , how does this amp compare to the HFi1000.1d? Trying to decide which amp to get (for now while budget is tight). On paper the BRX and HFi are just 50W rms apart at 2 ohms with a $10 price difference. Help me out, pros and cons to choose one over the other please. thanks
hpurey on May 24, 2016
Hifonics HFi1000.1D
Hifonics HFi1000.1D
Hifonics BRX1116.1D
Hifonics BRX1116.1D
Rockford Fosgate P3D4-12
Rockford Fosgate P3D4-12
Best Answer: At this point you are just looking at specifics. Looks, larger or smaller profile, that's really about it. I love my current setup (P3D4-12 as well). You'll never notice 50rms in real life situations. Maybe in a perfect lab situation. I needed smaller form factor to fit it under my drivers seat.
Reply (1) · Report · Anthony L on May 24, 2016
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If this is a single channel amp, why are there two speaker outputs? (Not speaking of the L and R) Im speaking of the other outputs. I only have one sub, why are there two connectors?
A shopper on Oct 7, 2016
Best Answer: Dual output terminals simplify installation when installing more than one subwoofer.
Reply · Report · Rick MStaff on Oct 7, 2016
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A shopper on Jun 16, 2016

Reply · Report · Rick MStaff on Jun 16, 2016
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What does the 3 year warrnaty cover?
A shopper on Aug 16, 2014
Best Answer: Hello,

It is an extension of the manufacture's warranty, in principal; You simply take your case to SquareTrade should a problem come up. So, Parts and Labor. The great thing about SquareTrade is they actually have the resources to cover shipping to and from, and have an awesome program to get you squared away [pun] quickly. .
Of course, what it Doesn't cover, is improper use and abuse. So please don't try to wire this down to .5 ohms , just because you read its, its not.
Reply · Report · Customer SStaff on Aug 16, 2014
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is this amp new?
A shopper on Aug 10, 2014
Best Answer: Yup! Brand new in box!
Reply · Report · Seth WStaff on Aug 10, 2014
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Product Summary


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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: Hifonics HFi1000.1D