If your looking for an entry level car audio subwoofer, then either an edge or vibe active 12 inch subwoofer with an built in car amplifier is something to consider. It is the perfect package to get some bass into your car audio system without breaking the bank. Vibe is an UK car audio brand and it is good for entry level sound if your just getting into car audio. Car audio is interesting and overtime you will save up to get better equipment, but if you're looking to get a bit more extra volume out of your car subwoofer, then this guide will help your vibe or edge active subwoofer reach to its full potential.
Use an good quality RCA converter. If you are using an factory radio, the quality of the line output converter will make an huge impact on overall sound quality and how strong the signal is. Cheap line out converters sold on ebay won't have any circuity inside to amplify the RCA voltage and also will have poor noise filtration. Generally RCA converters that are powered have there own power and ground wires generally are better quality. This is because high end RCA converters have there own circuit inside to increase the signal. The stronger the signal being sent down through the RCA cables the better the sound will be. The five pin or four pin connector that allows you to connect the rear factory radio speaker channels to the vibe or edge car subwoofer is convenient, but doesn't give the best sound quality. Also make sure you are using good quality RCA cables for better and clear sound. Furthermore, make sure they are shielded and the terminals are gold plated.
Tuning the settings on your vibe or edge car subwoofer is also essential. The low pass filter is adjustable to what subwoofer frequencies you want your subwoofer to play. 80HZ is the sweet spot for these types of active subwoofer setups. You can also set it around 120HZ to give you that extra midbass kick that your car door speakers struggle to play, increasing loudness and overall bass impact of your car audio system. The gain is what increases the output on your car subwoofer, you should tune the gain to the maximum volume, setting it just before you start to hear any distortion or degradation in sound quality. The bass boost setting is great if you have an factory radio because this will be set at 60HZ and will increase the amount of bass your edge subwoofer plays. Increase the bass boost on your car amplifier and set it up so you get clear and deep bass.
Upgrade your car amplifier wiring kit. If your using cheap ebay wiring kit, then there will not be much copper inside the insulated jacket inside the power and ground wires. Always use oversized wires if you can afford to run them. The more overall copper in the electrical wires to power the car amplifier inside the subwoofer enclosure, the better voltage it will get. This means the car amplifier will play to the full rms output it is designed from the factory. Poor cheap wires will hinder bass performance of any car subwoofer cheap or expensive. I always recommend that you go will 4 gauge wiring, this also give you remove for future upgrades if your thinking to get something more powerful.
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