Workhorse for the industry...the QSC 2450a. Powerful and reliable. I've had many of these and swear by them. The band is done, I'm retired, and selling off the gear. This is the last one I have. 500 watts into 8 ohms. Bridged they make great sub woofer amps. New cost is over 900 bucks, but I'm asking $420 because this one is less than a year old. If you're looking at this you're probably already familiar with them. Please note, if the ad is still up, the amp is still available. I won't respond to the question "...is this still available?". Thanks!