Welcome to OSCA Shop

We’re here to help you navigate car audio properly. We take pride in guiding enthusiasts of all levels, whether it’s a simple upgrade or a full system build.

Need Help? Talk to an expert

OSCA Vintage Collection

*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)
*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)
*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)
*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)
*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)
*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)
*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)

Vendor:Alpine

*RARE* 1980's Alpine 3313 Vintage 7-Band Graphic Equaliser (New-Old-Stock)

Sale price$100.00Regular price $399.00

Late-1980s Alpine 3313 7-Band Graphic Equalizer with Sound Wide Control | Vintage Japanese Car Audio

The Alpine 3313 is a Japanese-made, seven-band pre-amplifier graphic equalizer from the late-1980s era of Alpine car audio. Featuring seven adjustable frequency bands, dedicated subwoofer output, front/rear fader control and illuminated control panels, the 3313 reflects an era when hands-on sound adjustment was central to aftermarket audio systems. Its distinctive Sound Wide feature allowed users to adjust the perceived width of the stereo presentation, adding a concert-hall-inspired listening effect. A nostalgic piece of Alpine's analogue car audio heritage for collectors and enthusiasts.

New Old Stock (NOS) condition: Never been installed or used beyond professional testing. Original packaging and contents included. 

All OSCA Vintage Series products have been professionally powered-on and functionally bench-tested ✅

Hurry, only 1 item left in stock!

Pickup available at OSCA Shop

Usually ready in 24 hours

Pairs well with

Ships within 1-2 business days

12-Month Warranty

Expert Support Available

Authorised Australian Seller

Product details

Advanced Specifications
  • Brand: Alpine
  • Model: 3313
  • Product Type: Pre-amplifier graphic equalizer
  • Era: Late 1980s (approx. 1985 - 1987)
  • Equalizer Bands: 7
  • Centre Frequencies: 60Hz, 125Hz, 250Hz, 500Hz, 1kHz, 3.5kHz, 10kHz
  • Equalizer Adjustment Range: ±12dB
  • Input Sensitivity: 500mV
  • Input Impedance: 10kΩ
  • Output Level: 500mV
  • Output Impedance: 1kΩ
  • Additional Audio Controls: Sound Wide, front/rear fader, equalizer defeat
  • Subwoofer Output: Dedicated low-frequency output
  • Dimensions: 160 × 105 × 30 mm
  • Net Weight: 0.8kg
Key Features
  • 7-Band Graphic Equalizer allows individual adjustment of seven frequency ranges from 60Hz to 10kHz.
  • Sound Wide Control adjusts the perceived stereo width for a more spacious listening presentation.
  • Dedicated Subwoofer Output provides a low-frequency signal connection for an external subwoofer amplifier.
  • Front/Rear Fader Control adjusts signal distribution between the front and rear speakers.
  • Illuminated Controls and LED Indicators provide visible control positioning and signal output monitoring.
  • Equalizer Defeat Switch allows the equalization circuitry to be switched in or out of operation.
OSCA Fun Fact

Before digital sound processors and smartphone tuning apps, Alpine was already experimenting with ways to change how music sounded inside a car. The 3313's Sound Wide feature was advertised as providing a wider, concert-hall-like listening experience, controlled by a physical knob rather than software.
Alpine 3313 Owners Manual Alpine Heritage

Alpine — The 1980s Car Audio Revolution

During the 1980s, Alpine was at the forefront of increasingly sophisticated aftermarket car audio systems. In 1982, the company introduced what it identifies as the world's first in-car computerised graphic equaliser, while its equipment also became closely associated with exotic cars such as the Lamborghini Countach. As cassette-based systems evolved toward CD playback and separate amplification, Alpine's component-based approach gave enthusiasts greater control over their sound. The 3313 reflects this defining period, when equalisation, stereo imaging and system expansion were becoming central to the car audio experience.

Free Shipping on All Orders Within Australia Over $1000

Fast Dispatch

Orders processed within 24 hours

Authorised Australian Seller

Genuine products from verified suppliers

Standard 12-Month Warranty

Manufacturer warranty on all products

Expert Support Available

Technical assistance from audio specialists