I've been playing my Fender bass VI lately through my guitar rig using my whammy pedal an octave up, sounding pretty gnarly ... Haven't played around with many octave pedals, any must have recommended ones?
If you like octave up, I think your choices are he EHX PoG or the TC Sub n’up. I’m sure there’s other offerings out there, but octave up isn’t really my thing. If you want just octave down, get your can opener ready for that can of worms that is about to open.
I had a POG 2 for a couple of years before selling it. Fantastic octave pedal which unfortunately didn't get used enough to warrant me keeping it. If not that then I would recommend checking out either the Micro or Nano POGs.
The Sub n Up offers 1 up and 2 down. It tracks good in the poly mode but the classic features an old school trait of not tracking so well which sounds useless to me. The toneprint option is very interesting. However, I have yet to create a setting that's useful. My computer skills and attention span are both sad. Well made little box.
I use the mr. Black octave 2. Has mixeable low amd high octaves with a dry knob. Hard to find but great.
TC Sub n Up user here using it strictly octave up for my faux guitar a la royal blood style. I have a custom poly toneprint where I have the sub and sub 2 knobs dedicated to act as a lpf for the octave output.The sub knob sets frequency and sub 2 is the level gain drop off point to get rid of the shrilly digital synthy artifact that comes with the nature of effect. Works really well and even better with an eq set after the sub n up to fine tune and add some mids to get a better guitar type sound. I also use an ehx pitchfork set to 5th up to get my power chords. Still trying to find that perfect drive pedal but using a mooer fried mein guitar preamp pedal and an ehx green Russian reissue which is working great atm but still searching for something better. I also run this signal into a Traynor ygl1 15 watt tube guitar amp effects return.Currently waiting on a DOD Carcosa to arrive to see how it will work. Hope this helps. Cheers
A few days ago I tried the Okto-Nøjs from Emma Electronic. Very good tracking, right down to low E an octave below the E string. Didn't buy it because it also has a fuzz section I don't think I'll use, and 200 euros is too much for a pedal one half of which I won't use. If you're into fuzz, you may love it.
I've had really good luck with: Micro POG- I want to get one again but then again, I have the MD500 so I may not POG2 Digitech BWhammy Boss PS6 Boss OC2 Zoom MS60B (got some great ways to get octaves from analogue/mono to digital/poly) Boss MD500- Overtone in there is awesome. POG like but more bloomy sounding if that makes sense DOD Meatbox reissue- for when you want to suck all the air out the room MXR Bass Octave Dlx- had it for a short time but I thought it sounded pretty good I've used all these for different things. POG type octaves for digital, strong tracking, solid and cutting. OC2 and Meatbox are used for those really dirty, full, analogue, glitchy goodness. Like all of them but they all do octaves very different.
As @gregmon79 pointed out there's a good chunk of great octave pedals out there but boils down to what you want to do with it. If it is stricly octave up for that faux guitar sound the a micro pog or even better pog 2 has lpf and attack controls to help clean up the octave up work great not to mention track amazing with single notes and chords. The Tc sub n up tracks great for single notes as good as the pog but can get glitchy with chords. But if on a budget you can get the TC Sub n Up and create a toneprint that will work for you just as good as the pog 2 with the lpf. Also mentioned from gregmon79 if you want crazy octave lower type stuff that meatbox is the way to go but keep in mind it can be a speaker killer and are discontinued and likely hard to find one.