The single best and coolest expression pedal that ever was. Can control multiple pedals at same time (I have mine hooked to 4).
Not made anymore, Uber rare. Not a bargain but such a cool thing. This is only the second one I’ve seen for sale since I started bass.
Our own @JoshFossgreen has one!
https://www.talkbass.com/threads/source-audio-reflex.1624713/
I hear it’s also in charge of finding treasure in the dark 
Honest question. How much do any of you actually use these on bass?
Guitar sure. But bass?
I hardly use any of my pedals… I prefer the set-and-forget approach and having to deal with an expression pedal in a musical way while playing is still too challenging for my brain-hand-foot coordination 
IKR?
Whenever I see either a trem on a bass or an expression pedal on a bass board I seriously wonder if the owners eventually see them as anything but a minor liability 
Sounds like a neat idea, but unless you really like wah, maybe not so useful on bass
Also, I am just not that experimental in what I play or what sounds I want to create.
You can do some neat experimenting stuff with exp pedals and multi-fx units. In improv I have used exp pedals for toying around with distortion, volume and different effects.
Wah not so much.
I use it quite a bit with the Generation Loss and C4.
One of these days I am going to actually start recording some of that stuff into proper songs. Need my hand back first.
Aw man. @howard is being practical again. Pedals on bass aren’t about all that. I already have plans for a second unnecessary pedal board to go with my first unnecessary pedal board.
I have an outstanding imaginary pedal board.
I still don’t use it.
I was about to order a harmonious monk because playing a dark western figure pretending I’m playing accompaniment to Kill Bill isn’t sounding quite right. But I can see where that isn’t as generally popular as it is with me.
One pedal is small cost to realize a dream, my friend.
I’m on board. I have an EHX Sitar pedal just to play Within You Without You. And just generally trip out.
Dude, I can to-tally hear it. 
Dude, that sounds awesome.
Hey any forum folks in Japan (which right now is I guess… me and Larry?), decent-ish Yamaha MB-40 up on Mercari for ¥9800. Some finish cracks and a little beat up but for $65 this is a great deal, could use for parts even if junk.
You can routinely find these in very good condition in stores for around ¥20000-30000 so the price is pretty low unless it’s complete junk, which I doubt.
These are neat little basses, I will probably get one someday (been saying that for years).
https://jp.mercari.com/item/m84933732798
@Tokyo_Rat in case you’re looking 
Just a regular girl needing a date to the prom…I have no room left I’m at the point I’d have to sell to get new and there are none I want to get rid of. Even to the Epi EB3 to the local jam session as anyone’s bass and she was outrageous. She covered everything from Isn’t she Lovely to a 12 bars blues you know the words we are making them up.
Arturia Analog Lab Play (plug-in) is available for free - whether this is only now or for longer, I am not sure:
