Re: i didn't know seymour made amps
The Convertible 60/120's had plug-in modules for varying tones.....another great idea that really never caught on.....there have been many, at least SD's was to this day ultra usable.... some less than great ones below..
other great ideas, although less useful, were the Peavey Programax 10.....set the controls how you want and then press a button and it's stored! Up to 10x.....biggest downfall....basically you couldn't get a decent tone out of it or any other Peavey of the time....so although technically way ahead of it's time, pretty much comparable to a solar powered flashlight!
Fender 400 PS Bass Amp, huge monstrosity weighing in at 86 lbs for the head alone! Equipped with 6 6550's supposed to deliver 435 watts...only problem was the output section was actually divided into three sections that could only be turned on by plugging into all three output jacks....each one has a switch that controls the cathode feed, so you only got 100 watts (less than a Bassman 100) or so unless you actually used three cabs or were saavy enough just to plug a 1/4" into the unused jacks...(made no difference if they went anywhere or not, it was the only way all 6 6550's would ever operate!) as a tech, this freaked me out the first time I ever saw one...
...most opted for the simpler solution...Ampeg SVT!
Our third candidate is a little more recent, and requires a little more thought! (Or maybe I just "missed" something somewhere...we'll see!)
Matchless DC-30...has a Master Volume that does nothing unless it's turned on via push/pull switch......it's not footswitchable and even if it was, it would be unusable.... doesn't bypass any circuitry, just very simply turns the MV function on...if it's off the MV is at "10", if it's on it's from 0-10...so why the switch at all?
..or do you think anybody "missed" the fact it had no effect at all from such a high dollar amp...?
Jeff Seal