Originally Posted by apdamron
title says it all really...looking for an octave pedal to help with some funky/synth tones. is the pog2 worth it for basS?
Two different types of octave effect here. The POG2 is a purely digital octaver while the MXR and Boss are analog. Well, the actual octave effect is digital there too, but that's a different story. Let's just separate them as digital and analog octavers.
The POG2 being digital means that it has superior tracking. Even though you may not hear the suboctave you can play down to an open E without getting the glitching that the other two have when you start getting into the low register or an open A or if you don't have clean technique to mute open strings or if you hit two notes at once.
So a digital octaver wins in terms of tracking. As far as tone, the digital octaver will definitely sound digital. It gives the octave down tone a "thinner" and more "chime-like" sound than the analog octavers. In a mix this isn't a big deal but if you solo the octave down it's quite a noticeable difference. The POG2 also offers an octave up which may or not appeal to you. Together the octave up and down (with the clean sound) gives a very passable organ tone.
This video shows the original POG on bass. It lacks many of the POG2's features, but the basic tones will be the same. https://www.youtube.com/watch?v=67Ef0-gTIjo
The analog octavers have a much funkier and "dirty" or "gritty" quality to their octave down. They can be used to create a synthier tone, especially when turning down (or off) the dry signal such as Pino Palladino's fretless lines from the 80s or today's electronica bass tones.
As for the differences between the OC-2 and the MXR, they are very similar - in fact the MXR's "growl" knob is pretty much a direct copy of the OC-2. What the MXR adds is the mid switches (to boost your mids to help the sound cut through the mix), a "girth knob" which adds a different flavor of octave down (big and flabby) and can be combined with the "Growl" knob for different tones, more gain on tap which helps and true bypass which is of debatable importance since (IMO) the OC-2 has a very good buffered bypass which I find useful at the front of my effects chain. The MXR is also slightly smaller.
The OC-2's main advantage is that it tracks better. Both pedals track low comparably but the OC- 2 reacts to quicker playing noticeably better. I posted a comparison clip long ago but my website that hosted it is long gone. Again, in a mix it's probably a negligible difference but it made the difference to me.
And personally I find the Boss much easier to dial in. With the MXR I was always fiddling with the mid switch and dialing in the "Girth" knob until I just started leaving those controls alone and using just the dry and "Growl" knobs which meant it held no advantage to the Boss for me at that point especially since the OC-2 can be found for cheaper, has the buffered bypass I want, better tracking and is easier to switch on an off in rhythm, something I do occasionally to punctuate lines or make glitchy basslines when sett 100% wet ala Tim Lefebvre.
Others may like the additional options and true bypass of the MXR. Or the fact that it's a much cooler looking pedal than the poo brown OC-2. Different strokes.
Two other analog octavers worth checking out are the EBS Octabass and the Aguilar Octamizer.