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Quantum Audio  QA4-2000

QA Series 4 Channel 250W RMS x 4 at 2 Ohm, Class A/B Car Amplifier

Item #96616

Condition:   Brand New

Product Highlights

  • QA Series Amplifier
  • 4 Channel Output
  • 250W RMS Power
  • 2 Ohm Stable
  • Class A/B Circuitry

  Free 1-Year Warranty Included!
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$149.98

Reg. Price $159.98  Save 6%
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Quantum Audio QA4-2000 QA Series 4 Channel 250W RMS x 4 at 2 Ohm, Class A/B Car Amplifier


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We are a Quantum Audio authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
4-Channel Power with Flexible, Clean Connectivity

Experience powerful, full-range sound with 4-channel Class AB circuitry that blends warmth and efficiency for dynamic audio. Maximize your system’s output with stable 2-ohm stereo capability, giving you the freedom to run multiple speakers with ease. Cleanly connect your head unit or processor through low-level RCA inputs for crisp, uninterrupted signal flow.

Custom Tuning, Bridgeable Power, Total System Flexibility

Take total control of your sound with a variable crossover offering High Pass, Low Pass, and Full Range settings for precise tuning. Boost your system’s power by bridging channels at 4 ohms — perfect for driving subwoofers or high-output speakers. Compatible with both 2-ohm and 4-ohm speakers, this amp gives you the freedom to build your ideal setup without limits.

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Efficient Power and Advanced Heat Protection

Deliver clean, consistent power at any volume with a high-efficiency MOSFET design built for reliable, energy-smart performance. The advanced Q-Sink Heat Management System keeps your amplifier cool and protected, even during intense, high-demand sessions. Together, they guarantee dependable, uninterrupted sound performance for every drive.


SPECIFICATIONS


  • Maximum Power : 2000 Watts
  • Number of Channels : 4
  • RMS Power Output : 250 Watts
  • Amplifier Class : A/B

FEATURES


Features:

  • 4 Channel Full Range Class AB Circuitry- Delivers rich, dynamic sound across four channels, combining Class A warmth with Class B efficiency for full-range audio.
  • 2Ω Stereo Load Capability- Operates stably at a 2-ohm stereo load, maximizing output and allowing flexible multi-speaker setups.
  • Low Level RCA Inputs- Connects easily to aftermarket head units or processors with standard RCA connections for clean, reliable signal input.
  • Variable Crossover: HPF/LPF/Full- Offers selectable High Pass, Low Pass, or Full Range settings to precisely control your system’s frequency output.
  • Bridgeable Outputs @ 4 Load- Allows two channels to be combined into one for increased power output, ideal for driving subwoofers or high-power speakers.
  • Compatible with any 4/2 Loudspeaker- Works seamlessly with both 2-ohm and 4-ohm speakers, giving you maximum system design flexibility.
  • High Efficiency MOSFET Design- Ensures clean, consistent power management with energy-efficient MOSFET transistors for reliable performance.
  • Q-Sink Heat Management System- Keeps the amplifier cool and operating safely during high-demand use with advanced heat dissipation technology.

 

Specifications:

  • 4 X 125 Watts @ 4Ω
  • 4 x 250 Watts @ 2Ω
  • 2 x 500 Watts @ 4Ω (Bridged)
  • Bandwidth : 18Hz - 22KHz
  • Input Sensitivity: 200Mv – 8V
  • Crossover filter slope in Stereo: 12dB
  • Channel 1-2 HP filter range: 32 Hz - 2 KHz
  • Channel 3-4 HP filter range: 32Hz - 2KHz
  • Channel 3-4 LP filter range: 50Hz - 250Hz
  • Minimum Load : 2 Stereo / 4 bridged

 

Dimensions:

  • L = 10.55"/ 268 mm
  • W = 7.09"/ 180 mm
  • H = 2.24"/ 57 mm
  • UPC: 811536039255
  • Weight: 0
  • Authorized Internet Dealer
Warranty: 0 Months Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 0 Months from the original date of purchase with proper return authorization.

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