I knew that some type of BBE needed to find it's way into my rack...the 422A's are plentiful and inexpensive due to the newer models out, which makes everyone happy. Use 'em in your guitar rig, use 'em in your studio. I even read about someone that ran his home stereo system through one! You'll be amazed at your sound.
Where Obtained: eBay auction
2 channels for stereo use or split for 2 mono signals. A button allows you to turn the process off and on to impress your friends and make them believers.
A sonic maximizer is a MUST HAVE...unfortunately, you're talking rack gear for all intents & purposes. I was blown away when I added this to my rig. The 422A is essentially the early model of the 462...to my ear I couldn't tell a difference. Believe me, once you hear the difference, you'll lust and connive in order to get one. Try to imagine your entire tone tightening up.
2 channels, 2 knobs each. How difficult is that? One knob affects your lows, the other your highs. Twist 'em until you like it! Simple as that.
It survived 3 years of relentless gigging without any problems. I have a friend that has used his since the early 80's and it's still going strong.