The solid construction and high-performance components in the US acoustics USX-2080 amplifier by themselves make it a great choice for your car audio system.

Factor in the wide-ranging, continuously variable high-pass crossovers (65-4500 Hz at 12 dB/octave) which give you precise tune-tweaking capability, and the impressive low-pass crossovers (sharp 24 dB/octave slope) which help you get firm, tight bass, and you've got an amp whose performance is hard to beat.

You'll really be blown away by the fact that an amp as good as this can be priced so low!


  • stereo or bridged mono output
  • Tri-way capable (Tri-Way crossover required)
  • 140 watts x 2 at 2 ohms
  • 280 watts x 1 in bridged mode
  • requires 10-gauge power and ground leads — wiring and hardware not included with amplifier
  • variable high-pass (65-4500 Hz, 12 dB/octave) and low-pass (40-460 Hz, 24 dB/octave) crossovers
  • anti-thump circuit
  • speaker-level inputs
  • preamp outputs
  • thermal, short-circuit, and power/ground reversal protection
  • blue power light strip
  • 3-year warranty
Be the first to review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Hands-on research

What's in the box?

Download owner's manual

  • Blue amplifier with chrome trim and one 30-amp blade fuse in chassis
  • 1 Spare 30-amp blade fuse
  • 1 Speaker level input harness
  • 4 Plastic isolation mounting feet
  • 4 Self-tapping screws
  • 4 Flat washers
  • Manual
  • Warranty registration card with survey.

Product Research

Special Features
Additional Specs
Warranty Note

Special Features

True Line Output: The gold-plated RCA outputs on this amplifier are able to send flat, lowpass or highpass signals to a second amplifier.  If the internal crossover is switched off (full range), the line outputs will pass a full range signal.  When the built-in crossover is set for highpass operation, the line outputs provide a lowpass signal; when the built in crossover is set for lowpass operation, the line outputs provide a highpass signal. 

Power Supply and Output Devices: High current MOSFET devices are used in the power supply and output stages of this amplifier.

Anti-thump Circuitry: There is a time delay turn-on with opto-coupled muting circuits for quiet, thump-free operation.

High Speed, Audio-grade Components: High speed, audio-grade components are used in all low level stages to help ensure signal integrity.

Protection Circuitry: Reverse polarity, thermal and short circuit protection circuits are used to help protect the amplifier from damage and ensure reliable operation.

LED Condition Indicators: A green power LED and a red protection LED are use to report the amp's operating status.

Blue Light Strip: There is a blue light strip on the top of the amplifier. The light strip illuminates when the unit is on.


Crossover Selector: The crossover selector switch setting affects the signal amplified by this unit and the signal passed by the RCA line outputs. The switch may be set for full-range speaker output with full-range line output, highpass speaker output with lowpass line output or lowpass speaker output with highpass line output.

Level Control: The level control is a variable gain control with a range of 110mV to 8.8V.

Lowpass Frequency Control: This control is used to set the lowpass frequency for this amplifier and the RCA line outputs; the control is variable from 40-460Hz (24 dB/octave slope).

Highpass Frequency Control: This control is used to set the highpass frequency for this amplifier and the RCA line outputs; the control is variable from 65 Hz to 4.5kHz (12 dB/octave slope)



  • +12V, Remote Turn-on and Ground Connections: gold-plated screw terminals; each terminal is 0.335" wide
  • Left and Right Speakers Outputs: gold-plated screw terminals (R- and L+ connections are used for bridged mode); each terminal is 0.335" wide
  • High Level Input: a 3-pin jack used with the supplied Molex harness for speaker level input
  • Line In Connections: two gold-plated RCA jacks
  • Line out Connections: two gold-plated RCA jacks

Additional Specs

Best Frequency Response: 10Hz to 30kHz, -0.5dB.

Fuse Rating and Type: 30 amp blade fuse

Channel Separation: 86 dB

Warranty Note

Warranty: Amplifiers made before January 2001 carry a 1 year warranty. Units made during, and after, January 2001 carry a 3 year parts and labor warranty. All the units currently being sold by Crutchfield were manufactured after January 2001, so they are covered by the 3 year parts and labor warranty. The production date of each amplifier can be determined using the serial number; the first digit in the serial number indicates the year in which the amplifier was made. If the first digit in the serial number is "1", or higher, the amplifier carries a 3 year warranty; if the first digit in the serial number is a "0", the amplifier carries a 1 year warranty.

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 verify what’s in the box, 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.