STP CRYSTAL BASS BOOSTER Acoustic panels for car speakers to improve sound performance

STP Standartplast
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€ 36,20
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STP CRYSTAL BASS BOOSTER Acoustic panels for car speakers sound quality improvement

STP Crystal Bass Booster is a multilayer acoustic panel designed to improve the sound quality of speakers installed in car doors. Unlike anti-vibration or insulating materials, this product works directly on sound wave management, reducing reflections and distortions generated behind the woofer. It consists of two self-adhesive hexagonal panels to be installed directly behind the speaker on the sheet metal.


How an acoustic panel for speakers works

When a speaker works in a door the rear sound wave bounces on the sheet metal, reflections and interference are generated and the sound loses definition and control. STP Crystal addresses this problem:

  • absorbs the return wave
  • disperses acoustic energy
  • reduces local resonances
  • improves response in the mid-bass range

The result is:

  • cleaner sound
  • greater definition
  • more controlled bass
  • less distortion

The principle is that of neutralizing acoustic pressure behind the speaker.

Recommended applications

This product is specific and must be used in the correct location. Main application:

  • behind the speaker (woofer) in the door

It can also be used on:

  • interior panels
  • automotive audio systems
  • aftermarket installations

It is not a material to be applied over the entire surface.

Installation and use

Simple procedure:

  1. clean the surface behind the speaker
  2. remove dust and grease
  3. position the panel centered with respect to the woofer
  4. apply by exerting pressure

The hexagonal format facilitates:

  • centering
  • uniform distribution
  • adaptation to the surface


STP Crystal Bass Booster is a specific solution to improve the sound performance of speakers in automotive installations. Thanks to its multilayer structure and ability to absorb and disperse reflected waves, it allows you to achieve cleaner, more controlled and defined sound, representing an ideal complement in car audio systems where you want to optimize quality without invasive interventions.

Scheda tecnica

n-20230705111652-stp-crystal.pdf

Istruzioni applicazioni

20140701105522-stp-flyer-a4-ita.pdf

2x hexagonal STP CRYSTAL PREMIUM panels

STP CRYSTAL BASS BOOSTER Technical specifications

  • Type: multilayer acoustic panel
  • Structure:
  • aluminum layer
  • sound-absorbing layer
  • polymeric adhesive layer
  • Box contents: 2 panels
  • Shape: hexagonal
  • Dimensions: approximately 19 x 22 cm
  • Thickness: approximately 15 mm
  • Operating temperature: -40°C / +80°C
  • Application: self-adhesive
€ 36,20 Price incl. VAT