System Design

  • Common Stealthbox® Questions

    Do you make a Stealthbox® for my vehicle? We have many different Stealthbox® products available for many vehicle makes, models, and years. You can search for your vehicle on the JL Audio website to determine if we have a solution for your vehicle. Why don't you make a Stealthbox® for my vehicl...
  • Do I need to break in my speakers or subwoofer(s)?

    A common questions is if speakers or subwoofers require a break in period. The answer is no. While it is true that the suspension of a speaker will loosen up over time, there is no need to play a speaker at half power or low volumes for an extended period in order to aid or ease into this. The m...
  • How To Sound Twice As Loud

    A common misunderstanding when it comes to audio is that doubling power (watts) will make it sound “twice as loud.” Doubling the power (or cutting it in half) actually provides very subtle changes to SPL levels. It will take a significant increase in power to sound "twice as loud". Lets take a...
  • Selecting the Proper Size Power Wire

    In order to ensure that your amplifier is operating properly and to its full output potential, the power and ground cables need to be large enough to handle the demand for current. This means choosing the correct wire gauge, or “thickness,” for your system. The more demanding the audio system, th...
  • Sound System Glossary

    A/C (Alternating Current): Energy that alternates back and forth at a certain frequency. The frequency is measured in Hertz (Hz). Acoustical Energy: Energy consisting of fluctuating waves of pressure called sound waves. Acoustic-Suspension Enclosure: An enclosure type where the box is com...
  • Speaker Types: What are they, and why do I need them?

    If you’ve ever found yourself wondering about the different types of speakers and what their purposes are, you are not alone. This is a topic we frequently answer questions about, so we’ve laid out some key terminology for anyone that’s looking to learn more about their functions. Tweeter: A twe...
  • Speaker Wiring Tutorial

    Dual Voice Coils (DVC) Some Frequently Asked Questions About Dual Voice Coil Subwoofers: What does a voice coil do?
 The vast majority of speakers available on the market today are referred to as electrodynamic. All electrodynamic speakers share a fundamental aspect of operation: the reaction ...