Car amplifier bass boost control
Amplifiers

Does Bass Boost Give You More Bass? Car Audio Explained (2026)

Does bass boost give you more bass? Learn what the bass boost knob actually does on a car amplifier, when to use it, and why too much can clip your amp and blow your sub.

AmplifiersDown4Sound JP series amplifier

Down4Sound JP Series Amplifiers: JP23, JP234, JP284 & More (2026)

A guide to the Down4Sound JP series amplifiers — JP23, JP234, JP284, JP95T and more. Power, channels, what each is for, and how to choose. Plus in-stock JP amps to buy.

AmplifiersDown4Sound JP284 3000W 4-channel car amplifier

Down4Sound JP284 Review: 3000W 4-Channel Amp Specs & Sound (2026)

Down4Sound JP284 review: specs, 3000W 4-channel Class D power, features, wiring and what it can run. See how the JP284 compares in the JP series and where to buy in stock.

AmplifiersStetsom Bravo Attack monoblock car amplifier

Are Stetsom Amps Good? An Honest Stetsom Brand Review (2026)

Are Stetsom amps good? Our honest review covers Stetsom Bravo amplifiers, whether they're Class D, who makes Stetsom, and where to buy Stetsom amps and DSPs in stock.

AmplifiersCar amplifier gain and crossover controls being tuned

How to Tune a Car Amplifier: Set Your Gain the Right Way (2026)

Learn how to tune a car amplifier step by step — setting gain, crossover, bass boost and subsonic filter by ear or with a multimeter — to get clean, loud sound without clipping.

AmplifiersCar subwoofer being installed - 12-inch subwoofer and amplifier

How to Install a Subwoofer in Your Car: Step-by-Step Guide (2026)

Learn how to install a subwoofer in your car step by step — wiring, amplifier setup, enclosure choice and gain tuning — plus exactly what gear you need, in stock at JS Ultimate Sounds.