Amplifiers
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.
What Size Subwoofer Box Do I Need? Sub Box Size Guide (2026)
What size subwoofer box do you need? A guide to sealed vs ported box volume by sub size (8, 10, 12, 15 inch), tuning, and how to find the right airspace for your sub.
DC Audio Levels Explained: Level 1 to Level 6 Subwoofer Guide (2026)
DC Audio Levels explained: what Level 1 through Level 6 mean, power handling, the PS3 Pro series, and which DC Audio subwoofer is best for daily bass vs SPL. Plus where to buy in stock.