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Hifonics HFi1000.1D (Open Box Complete)

1000 Watt RMS Class D Monoblock HFi Series 1-Ohm Stable Subwoofer Amplifier

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Hifonics HFi1000.1D (Open Box Complete)

1000 Watt RMS Class D Monoblock HFi Series 1-Ohm Stable Subwoofer Amplifier

$68.24

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Hifonics Car Audio Store

HFi Retro Style, Advanced Technologies

The HFi1000D complements any application for your subwoofers. Today’s high output subwoofers require only the finest, dedicated power to run loud and constantly in any vehicle. The HFi Monoblock series of amplifiers meets these expectations and will gladly get your system that extra bass you’re looking for.

Incorporating Class D circuitry to allow for dedicated, efficient power allows for higher bass response, and not sacrificing any sound pressure. Why neglect your subwoofer of the high power output it truly demands? The HFi Class D Monoblocks are affordable, extremely powerful, and designed with a pleasantly small chassis. This allows the high power output amplifiers to take up the least amount of space in any installation.

The included bass knob can allow you to adjust your bass to match any music type, and allows you to replicate your bass to compliment any genre type. Integrating the Pulse Width Modulated MOSFET power supply to allow for efficiency on your car battery allows this amplifier to put out impressive power without drawing too much from your car’s electrical system. Value is truly defined with HFi1000D – get yours today!

General Features:

  • Item Condition: Like New, Open Box, Complete
    Not Refurbished
  • 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
  • 30 Day Sonic Electronix Warranty

Power Specifications - Subwoofer Channel

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 speaker(s) or subwoofer(s) 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. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
475 watts x 1 channels
RMS Power @ 2 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 speaker(s) or subwoofer(s) equals 2 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. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
750 watts x 1 channels
RMS Power @ 1 ohm
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 speaker(s) or subwoofer(s) equals 1 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. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
1000 watts x 1 channels

Amplifier Specifications

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.

D
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.
1 - Mono
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.

1000 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.
1 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
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.
No
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.
1 pair
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)
Subsonic
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.

30 - 250 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
15 - 35 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.
<0.1 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 - 10 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.
80A x 1 
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.
No
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
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Not Tested

Warranty and Return Policy

Parts Warranty Duration
30 days
Labor Warranty Duration
30 days
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

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4 Star
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2 Star
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1 Star
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Average Attribution Rating

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Browse 12 questions and 50 answers
Hide answersShow all answers | Sort by
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
quality
Anthony Sr. S on Oct 23, 2016
I Have 3 12inch D2 type r alpine subs want to buy 3 amps one for each subs will i get 1000 watts rms on each sub wired to down every amp to 1ohm since the amp says its 1ohm stable?
al1994 on Dec 3, 2016
Best Answer: Hello Alex!
This amp is pushing around 1000 watts according to Hifonics.
So thats what youll get on 1 ohm. Make sure you match your amps up to your subs.Or the units will heat up and it will create clipping. The amp will heat up and go into protect mode and shut off and will turn back on when it cools off.And that could b a pain in the neck when your are trying to enjoy your new system.
You always want to give your amp a sub it can handle. You can adjust the difference on the amp by fine tuning as long is not too much wattage. People in their right mind will never fill a 32 oz. cup with 40 ounces of water so why do that to an amp. Give it a little room to avoid spills. In this case give a little room so that the amp doesn't overheat and some room to the sub to prevent damage. (I also recommend the BIG 3 for this set up it will hit hard and consume a lot of power from your vehicle.) HAVE FUN N GOOD LUCK!
Reply · Report · Omar P on Dec 3, 2016
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)
IS THERE A DEALER IN RENO NV?
A shopper on Jun 16, 2016
Best Answer: UNFORTUNATELY, NO. WE ONLY SALE ONLINE, THROUGH THE WEBSITE. HOWEVER, WE INVITE YOU TO CALL OUR SALES TEAM TO capatilize ON CURRENT SALES.

HTTP://WWW.SONICELECTRONIX.COM/
Reply · Report · Rick MStaff on Jun 16, 2016
· Add Answer · I Have This Question Too (0)
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. http://www.squaretrade.com/promise .
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 possible....no, its not.
Reply · Report · Customer SStaff on Aug 16, 2014
· Add Answer · I Have This Question Too (0)
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
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

HFi1000.1D

Weight

9.00lbs

Internal SKU

ls-hfi10001d-obc287131

Internal Product ID

124361

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 (Open Box Complete)