Soundstream is a very good amplifier brand too. They were more famous before in the 1990s but they're less known nowadays. Their Tarantula series are being used by local installers at times.
Among the 4 amplifiers, I will rate Powerbass ASA600.4X as the #1 and Rockford R400D as #2. Powerbass is #1 is because power is king. I'll take 100W over 75W anytime! It's like horsepower -- more is better generally.
Actually, all 4 amplifiers are Class D topology designs. Since 2011, many amplifier manufacturers have moved from the more classic Class A/B designs to Class D as they reap the benefits of more power and better efficiency in a smaller amplifier footprint.





Reply With Quote![Google Play audio set-up for beginners [continued]](https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png)