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Best Bass Envelope Filter Pedal ?

For me I think Source Audio is the current king. Their Bass Envelope Filter Pro was the bomb, I currently have a Spectrum and it sounds great, can do anything you would want!
I also have a Meridian Funkulator that has a very sweet filter in it it almost behaves like a Fwonk Beta with the threshold backed off and doesn’t get a super subby, which is a good thing with the octave/synth side providing the sweet subby low end. I thought one was going to beat out the other but they both have such a different flavor I decided to keep both of them!
 
Chunk Systems Octavius Squeezer (has the 00Funk MkII filter in it). Really wet sounding analogue filter, and on the Squeezer fully programmable with presets.

My fav. Run it in Paralell with a Micro Tron III. No Dana, Only Zuul
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Of the ones I've tried--and there have been more than one I liked--my favourite is the Boss AW-3--I can dial in a gritty sound, and over the top wah and a vocalizer, and all sorts of sounds in between.

I'd had one sooner, I'd probably have played more bass sooner.
 
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I've owned a few envelope filters... MXR Bass Envelope Filter & Bass Auto Q, Boss SYB-3, Emma Discombobulator, Broughton Josh wah, Menatone Mail Bomb etc... but there are only two that I've kept: a vintage Maxon AF-9 & the Chunk Systems Agent 00Funk mkII. Both have up & down sweep options which many filters lack.

The AF-9 has a very warm, organic, vocal quality & I've heard it's similar to the MuTron III. The Agent 00Funk is on the opposite end of the spectrum, it can get really wet & synthy. Both pair really well with fuzz & retain their 'wah'

I also have a Iron Ether Xerograph Deluxe on the way which is a really wet low pass filter that has an envelope control but also an expression jack for manual control.
 
You basically get all the great filter pedals already mentioned with the sa spectrum. Mutron, meatball,bassballs,qtron,moog....

Everyone has a c4 and yes it has more stuff than the spectrum but from what im reading about peoples experiences is that the c4 is almost too dense to a fault. Hard to dial things in on the fly; and the filters go by the wayside because theres too many options.

Im so glad i got the spectrum. The different filters react differently to different effects. I love the mutron but when i got tape delay going its the lovetone that stands out for me. And while the spectrum is dense too; i have all the filters i want on the fly.

Granted it is digital. If i was specifically looking for analog id probably be hunting a xerograph or a proton or mother tongue or a grail lovetone or mutron. Having the real analog thing is a legit desire...

Filters do so much for us bassists and theres so many distinct flavors. After having the spectrum i cant imagine limiting myself to just one
 
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I have an EHX Riddle Q-Balls, which is advertised as being "for guitar," but there's zero low end loss in low pass mode, and it has a very useful blend for BP and HP modes.

I've also tried the Enigma. It indeed has deeper bass than the Riddle, but since I already had my Riddle dialed in to perfection, I chose the Riddle.

Of all the modern filters I've tried, including the Mu-FX/Mu-Tron MicroTron III, the Q-Balls is the closest to the original Musitronics Mu-Tron III. The funny thing is that, even with eight knobs that have huge range, I've found the Q-Balls easier to dial in than many supposedly simpler envelope filters. Just find your comfort zone within each knob, and you're good to go.

EDIT: I would have mentioned the Multivox Big Jam Spit Wah, but after a quick search, I see the prices have gotten insane.
 
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I am a big fan of the Digitech Bass Synth Wah. It is a lot of fun!

How do you think it compares to some of the other well known pedals in the discussion?
I have the BSW, and I think it sounds not as good as any decent, dedicated envelope filter I have heard. It could be the rest of my gear, but most of my stuff sounds great through my rig.
 
I'll have to try that! The No Dana, Only Zuul preset is crazy.
The no Dana patch I run in parallel to the ED Data Corruptor. Mostly the Squeezer is the Paul Turner Patches, the Kermit the freak and funk, the Downtown and Butter envelope filters (which I run with the Micro-Tron parallel) and the Evil Overlord Fuzz... I only balance the patches for volume, otherwise stock, because as I'm sure you know programming it is a type of torture banned in several galaxies as cruel and unusual. That said, it's still easily the number one in funkiness.
 
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You basically get all the great filter pedals already mentioned with the sa spectrum. Mutron, meatball,bassballs,qtron,moog....

Everyone has a c4 and yes it has more stuff than the spectrum but from what im reading about peoples experiences is that the c4 is almost too dense to a fault. Hard to dial things in on the fly; and the filters go by the wayside because theres too many options.

Im so glad i got the spectrum. The different filters react differently to different effects. I love the mutron but when i got tape delay going its the lovetone that stands out for me. And while the spectrum is dense too; i have all the filters i want on the fly.

Granted it is digital. If i was specifically looking for analog id probably be hunting a xerograph or a proton or mother tongue or a grail lovetone or mutron. Having the real analog thing is a legit desire...

Filters do so much for us bassists and theres so many distinct flavors. After having the spectrum i cant imagine limiting myself to just one

My C4 is filled up with patches, so I got a Spectrum to alleviate it, only to find that I've really enjoyed having it as a dedicated filter pedal. The trick to having a easy life with the C4 is how you midi trigger / control it. For me that's been a Boss ES-5 and Neuro hub. I thinned down my C4 a bit, but it's an easy pedal to get lost in. The Spectrum really is it's own thing even though it's a cut down C4 and I really like it. I'm using mine with only 6 pre-sets and keeping it really simple.

I think with 56bit processing and 24bit DACs...the Analogue vs Digital debate is truly over. The Spectrum sounds more analogue than most analogue pedals.

The Xerograph is also digital by the way. It just has a simpler set of controls and smaller DSP than the Spectrum. Great pedal, I use my SQ EQ as a foot controlled 4 pole Law pass filter, just like a Xerograph. Again it underlines that fact that these days...good digital is as good as good analogue.