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Hifonics HFXR

2-way / 3-way Active Crossover with Remote Bass Control

In Stock

List price $139.99


with warranty

You Save: $87.00 (62.15%)

Order within 66 hrs 16 mins to ship 10/27

Arrives by Wednesday, Oct. 29 to zip 20147

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In Stock

Arrives by Wed, Oct. 29

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Product Features:
  • 2-Way/3-Way Electronic Crossover
  • Select 2-channel or 4-channel inputs with switch
  • Bass boost (0-12dB @ 45Hz)
  • Maximum pre-amp output: 8.5-Volts RMS
  • 45Hz Bass boost with quasi-parametric EQ
  • Can be used with mono or stereo woofers
  • 180-degree phase-shift switch
  • Front channel high-pass frequency: 32-400Hz in the x1 position, 640-8,000Hz in the x20 position
  • Rear channel high-pass frequency: 32-400Hz
  • Front, rear and subwoofer level adjustments
  • Front and rear inputs with front, rear and subwoofer outputs
  • 2-Channel full-range RCA Pre-amp output
  • Rear signal output
  • LED Power indicators
  • Authorized Internet Dealer
  • 1-year warranty
Product Specifications:
  • Frequency response: 10-30,000Hz
  • Total harmonic distortion: > 0.01%
  • Signal-to-noise ratio: > 95 dB
  • Channel separation: > 60dB
  • Output gain ratio: 1:2
  • Dimensions: 6-3/4"D x 5-3/4"W x 1-3/4"H

Crossover Specifications

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.

High-pass (HP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below 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.

32 - 400 Hz
Built-in Bass Reconstruction
Bass reconstructors, or bass enhancers, improve low frequency reproduction in a car audio system with at least one subwoofer. These bass expander products will help your subs produce accurate bass thumps.
Line Driver
A line driver is a small amplifier used to support the strength of the audio signal coming from the source unit.
Max Output Level
The maximum level (in volts) of signal output. A higher level will increase the clarity and boost your signal.
8.5 volts
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
10 - 30,000 Hz
THD (Total Harmonic Distortion)
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
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.
95 dB
The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, 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.

Specials with this Item

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Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Dissapointed at first

December 17, 2013

First of all sonic electronix is the shizznit.. Fast shipment, on time and I always get updates on tracking unlike other online stores..anyways so I hooked the crossover when I received it I hooked it up to my sub amp since I didn't have my mids installed. I messed around with it and I couldn't hear any difference..(maybe I needed more time to tweaked the settings on my head unit and amp settings). After a weak or two I took it out.. Anyways long story short I ended up taking my sub amp and put my mids amp. Crossover has plenty of volume( I can lowered my amp gain) crossover settings are good. I'm not a big fan of Chrome but it actually does not look bad. One think I dion't like is the little plug that hooks up to power,remote and ground comes off easily and also the knob controls are a little flimsy.. Remote has a cheap feel to it.. But overall for the money it's a good buy.

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Sacramento, CA

Great x-over for the price.

December 10, 2011

If you are looking for a good cross-over at a reasonable price you found it! I resently installed this unit into a customers truck with other Hifonics components and it worked just as I needed it to. With the included bass knob it gave me all the cross-over frequencies I needed to adjust this custom system nicely. Great equipment for a system on a budget.

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las Vegas,NV

Not sure yet

October 1, 2011

The setup for this product looks easy enough just haven't had a chance to install it yet, but have always used hifonics equipment and always pleased with the equipment I have purchased.

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Woodhaven NY

You'll be shocked what this product does

September 13, 2011

Everyone in your circle is probably using many amps to give you the response this does. I have this with 4 12" EV's and have heads turning way before I get to where they are. I have always used Hifonics and always will.

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Browse 2 questions and 1 answer
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Why did you choose this?
Sonic Electronix Store
inexpensive and to serve as a line driver
victor j on Sep 5, 2014
Does this unit have speaker level inputs?
A shopper on Sep 3, 2014
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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 HFXR