Impreza | System 450Q
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Made-to-Order 7-14 Day Lead-time

By popular demand OEM Audio Plus has elected to produce our premium sound solution for the Subaru Impreza (2011-16).

Our Guarantee: Unmatched clarity, deep bass reproduction and a complete transformation of your listening experience in a minimalist package fashioned specifically for your Impreza both in design and acoustics.  


  • Multi-Channel 32-Bit DSP Power Amplifier 
  • O+ Signature Sound Reproduction
  • NEW Vehicle-Specific 8" Four-Coil Subwoofer System
  • Quick-Sync Wiring Harness
  • Front 1" Soft Dome Tweeter



  • 360 Watts RMS (Continuous / @ 2-ohms) 
  • Advanced Cirrus-Logic 32-Bit Digital Signal Processing
  • Real-time system diagnosis for trouble-free operation 
  • Meets all OEM standards including AEC-Q100

Subaru WRX, Hatchback, sound system, audio upgrade, subwoofer system, subaru sub,

Mounts using exiting hardware location under passengers seat 

O+ SIGNATURE TUNINGUnmatched Sound Reproduction - Liken to a finely tuned home theatre or studio headphones - Guaranteed 

  • Tuned specifically for the in-vehicle acoustics of Your Crosstrek and output characteristics of the head unit (Factory or Aftermarket)
  • Digital Signal Processing (DSP): clean, clear and crisp sound is achieved w/o requiring a massive power amplifier. 
  • Amplifier converts analog signals into digital signals by way of four analog- to-digital (A/D) converters 
  • DSP maintains signal integrity and provides precision adjustment not possible with an analog signal 
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IMPREZA-SPECIFIC SUBWOOFER SYSTEMDeep, non-localized low frequency reproduction that is felt as well as heard without compromising Your music's clarity. 
  • 8" Four-Coil Woofer 
  • Genuine Carbon Fiber Cone Woofer 
  • Frequency Response: 20 -1000 Hz 
  • Mounts using existing vehicle mounting locations
  • 14 Liter Sealed Enclosure (The Ideal Air Volume)


2015 WRX, 2015 STI - Amplifier, Subaru sound upgrade, sound system, bass, audio, subwoofer, dsp amplifier, stereo


  • Silk soft dome
  • 4-ohms 
  • 50W RMS (100 Peak)
  • Sensitivity 91.8 dB (1 W,1M)
  • Frequency Response: 3,000-20,000 Hz
  • Built-in 6db/Oct. High Pass Filter
  • Neodymium Magnet Structure


  • Connects seamlessly to factory harness and radio + Maintains all functionality 
  • Constructed of genuine OEM connectors
  • Perfect connection and maintain 100% signal integrity every time.
  • Fuse Holder Assembly is element proof butt-connectors w/ built-in solder
  • Weighs under 4lbs / 1.8kg 


We invite you to be apart of the audio revolution, experiencing your music as intended - OEM Audio Plus

Subaru Impreza Financing audio


  • Item #: SUB-GPH-SYS45Q-0700

Impreza | System 450Q

Price: $1,199.00
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