Altec Lansing FX4021

2.1 powered speaker system

  • Altec Lansing FX4021


Item #: 636FX4021

Review Summary

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Our take on the Altec Lansing FX4021

by Tara W.

Altec Lansing's FX4021 delivers clean, full-bodied sound from your computer — whether you're playing music files, movies, or video games. Two compact satellite speakers provide crisp, clear sound, while the subwoofer's dual 5-1/4" woofers dish out deep, rich bass.

The satellite speakers come with removable stands. If space is tight, simply detach the satellites from their bases and mount them on the wall. You'll enjoy easy control over volume, bass and treble with the included remote, or with the provided control pod that connects to the subwoofer. You can also plug in an iPod® or MP3 player for quick access to your favorite tunes.

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  • two video-shielded satellite speakers and non-shielded subwoofer
  • 11 watts x 2, plus 24-watt subwoofer
  • frequency response 32-20,000 Hz
  • minijack aux input for connecting an iPod® or MP3 player
  • headphone jack
  • wired control pod
  • remote control
  • AC power cord
  • satellites:
    • detachable stands
    • 3/4" tweeter and 1-5/8" mid-range driver
    • 3-3/16"W x 7"H x 2-5/16"D
  • subwoofer:
    • two 5-1/4" woofers
    • 8-5/8"W x 13-5/8"H x 8-5/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Pieces in System 3
Wireless No
Video Shielded Satellites only
Tweeter Type N/A
Tweeter Size (inches) 0-3/4
Midrange size (inches) 1-5/8
Woofer size (inches) 5-1/4
Woofer Composition N/A
Powered Subwoofer 360 Degrees
Power Output (Watts) N/A
Frequency Response 32-20k Hz
Height (inches) 6-5/8
Width (inches) 3-5/8
Depth (inches) 3-13/16
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • Subwoofer Module with 6' AC cord attached
  • 2 Satellite speakers with 78" Signal cables attached (each with an RCA plug)
  • 2 Satellite speaker stands (installed)
  • Control pod with 98" Cord attached
  • Wireless remote control
  • CR2025 Lithium battery
  • 75" Stereo mini-jack cable (3.5mm male mini-plug on both ends)
  • User guide (English/French/Spanish)
  • Marketing survey
  • Offer for free wall mount brackets (customer pays $3.00 shipping charge)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.



Overview: The Altec Lansing FX4021 is a 2.1-channel powered speaker system for use with a DVD player, CD player, computer, or game system.

Satellites: Each satellite speaker has a removable base. The bases can be replaced by optional wall mount brackets available from the Altec Lansing. The satellites are magnetically shielded.

Subwoofer: The powered subwoofer features two 5-1/4" long-throw drivers in an isobaric enclosure. The entire perimeter around the top of the subwoofer is vented for bass output. The amplifiers for the system are located in the subwoofer. The subwoofer is not magnetically shielded so it should be placed at least two feet from a CRT monitor of computer CPU.

SFX Technology: Sound Field Xpander Technology delivers a wider stereo image for bigger sound.

Control Pod: A wired pod keeps controls within easy reach. A rotary wheel adjusts volume, bass, and treble. On/off buttons control power, loudness, and SFX. On the side of the pod are two 3.5mm mini-jacks; one headphone output and one auxiliary input.

Note: If signals are fed to both the main and auxiliary inputs simultaneously, they're both played through the speakers (not generally a good thing).

Wireless Remote Control: The system features a wireless remote that adjusts volume, bass, treble, loudness, SFX, and stand-by (on/off). The remote also has a reset button which returns the tone controls to the factory setting.

Subwoofer Connections: On the back of the subwoofer are RCA outputs for both satellites, a 3.5mm stereo mini-jack input, and a DIN plug for the wired control pod.


Power Output: 46 watts RMS total output power:

  • Subwoofer: 24 watts RMS @ 10% THD
  • Satellites: 11 watts RMS each @ 10% THD

Frequency Response:

  • System: 32 Hz to 20 kHz
  • Subwoofer: 32 Hz to 180 Hz
  • Satellites: 180 Hz to 20 kHz
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Altec Lansing FX4021 Reviews

Average Customer Review:

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4 out of 5

Altec Lansing FX4021

Written By Caleb, Ames, IA on Thursday, May 01, 2008
Having previously
been using a 2.0
stereo system, this purchase
was clearly an
improvement. While
not an extremely
loud system, it is
perfect for a dorm
room, den, or
office. The highs
are very clear and
crisp (probably the
systems strong
point) and the bass
is sufficient. I
listen to it at
nearly flat
equalization with
the loudness turned
on and am very
pleased with this
purchase. It is
used with my laptop
and iPod, most music
at 192 kbps mp3
format. Not having
a very good ear for
musical frequencies,
it seems that the
mids could be a bit
lacking, but I could
be wrong. However,
clarity is
excellent. I have
owned it for eight
months and have
experienced no
problems. If one
thing could be
improved, I would
wish for more
volume, but I'm sure
that can be bought
with a higher price
2 out of 2 people found this helpful
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4 out of 5

Great at work

Written By Matthew, Charlotte, NC on Wednesday, March 12, 2008
I compared these to the Klipsch 2.1's, which I owned and loved. I needed something for my cube at work where I can't turn them up but they have to be able to cut through a lot of ambient noise and still be balanced. Where, at low volumes, the Klispch 2.1's sounded muffled and lost bass in the ambient noise, the Altec's sounded great and came with more features like the remote. The Klipsch kick Altec out of the water when cranked up, but for a desktop application, they were the big winner. I position the sub directly below the monitor on the floor and each speaker beside the monitor about 2 feet from my head.
2 out of 2 people found this helpful
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