Low Pass Filter Guitar Pedal For Sale (2024 Update)

To use a fine old term 'bang for the buck' this is definitely it. If one understands how these work this one delivers the goods. I am easily able to get the full envelope range using a stock Strat. It would improve the performance, however, if the envelope sensing favored the bottom strings a little more which would even out the overall response. Otherwise dynamite! Maestrohealymaestrohealy

I was expecting to have a cool funky sound for my bass rig… But no way, I haven't found any saturation with this pedal at all. Just pass on this pedal and save your time and money. I will be returning the pedal.1978circa3-9

This pedal is cool but kind of strange. The overall effect is very mild through clean instruments but is very noticable with distortion. It boosts your signal a bit which will cut your volume if you switch it off in the middle of a song. The white knob does reshape your mid range tone which can either add an extra layer to shape your eq or diminish your eq altogether. This knob always reshapes your tone in this manner regardless of what the other knobs are at. One major benefit to this is that it seems to polish your tone a bit. The difference was extremely obvious when I tested this through my full bore pedal. This is worth having but it's more of a secondary effect pedal. If you need something to go with your distortion/reverb pedal combo and don't want something generic, this is a good choice.gei_57

This is the best lowpass filter out there, snd you can get some great autowah and special-effects sounds. If you own another Moogerfooger with an LFO, you can patch the LFO CV into this pedal for the classic Moog "ladder filter" effect. I just wish it had a built in LFO of its own, but then again, this pedal is not nearly as expensive as the other Moogers.Fuzzlord

For Moog this is one of the cheaper pedals.It can be a great auto wah, or if your into "knob tweaking"Get it.The only down side is there is no True BypassWhen the pedal is off your tone is still affected by the gain knob and any pedal after before or after the moog will be altered.Which isnt a bad thing all the time.But i had to constantly adjust my amp and settings when i wasnt using it. It needs a true bypass.But on a bright side its quality sound and lets face it, it looks awsome on a pedal board.JimBob-g94wX

This thing is AWESOME. it just does what a envelope should do with very intuitive control. Nothing like an analog envelope to unleash the funk. I have a mutron iii and have built several variants myself but I keep coming back to the 440. Simply awesome.GC66

I think this would be much better on guitar or synth. It sounds pretty rad on the very upper end of the bass, but down low, definitely below the 10th fret F on the G string on a bass guitar, it doesn't respond very well. It is a really interesting pedal though, it produces a number of unique sounds, including some ring mod like sounds.Stuart

Very limited useful tones. As a traditional envelope filter, the sweep doesn't go nearly low enough. It's quacky and thin, not deep and throaty. It can make a bunch of oddball, ring modulator like tones…but how useful are those? This is that pedal that sits around unused until you have that one part in that one song….and then you never use it again. There are other more practical envelope filter pedals out there.Scott D

I bought this for studio use and I think it will do fine there. The construction is solid and the tonal options are good with multiple filters, LP, HP and BP. My only gripe is that Pigtronix should have included a brief users guide, which was a striking omission especially considering how well packaged it was. You can get the guide online, and will need it to fully understand the pedal …not every knob functions depending on the mode you select. Other than that, it's a solid pedal.Jim

This item will be a present, is I haven't had a good chance to play with it yet. However, I'm really impressed by what I've seen/heard so far. It's great into the front of my amp (AC15) just for regular EQ type purposes and really allows you to sculpt various sounds with different guitars. It's also really good as a boost, just fattening single coils up nicely if you like that sort of thing. Looking forward to using it with pedals to shape some more interesting tones.Reviewed by Andertons Music Co.

I'm addressing the review that said this pedal was noisy. OK, I can appreciate where he is coming from but here's the thing: the pedal is not noisy. I would suggest you do some work on your power supply? First off, do not (parallel) daisy chain your EFX pedals. This is no doubt what the problem is with this person's rig. You may not understand this or believe this but your 9V system can have a ground loop. Have you ever considered this before? I doubt many of you have. Here's the test for power supply noise: remove your single pedal from your chain and attach a single external 9V source. Plug in and turn on the EFX – does it produce self-noise? Or is it now MORE quieter than it was while on your pedal board? You have discovered your problem. Your 9V supply in your pedal board should be equally quiet. There are solutions out there but typically a power supply that can deliver isolated 9Vs to your pedals is the easy route. Spend some money here, talk to experts if you can find them.Rooster

i will try to add some info of value that i think is missing from the other reviews. 1st, in response to another reviewers complaint, my experience was this pedal is very quiet in my rigs. next i will mention a con. this MAY be a limitation of graphic EQ's period but as soon as you turn this pedal on, even with none of the levers moved, your tone changes. not the tiniest imperceptible amount either, it is something you will notice. as i said this MAY just be a limitation of graphic EQ pedals to begin with, i haven't fully put enough different GEQ pedals through their paces to know for sure. so don't think oh my tone is really good it just needs a tiny bit of sub-bass scooped out and it'll sound perfect. this pedal is not going to work like that. if you are using it at all, you are going to leave it on all the time. now with that said …. i find that the pedal IS very good as sculpting the sound, like others have mentioned. you may not get exactly what you had prior to turning the pedal on, but once you do start moving the levers around it is very easy to get your guitar/amp sounding very very good. you CAN cut the sub-bass out, but just realize that you are going to have to change other things too. you are doing a total tonal re-sculpt. the end result will sound very good and may give you pretty much the sound you desire but don't expect that you can just pull out (or add) a little gain from 1 band and your rig will sound exactly as it did before plus/minus the effect of that 1 band. there is 1 other con i think people need to know that hasn't been mentioned by other reviewers. i was a bit disappointed with the volume curve of the faders. even at the smallest possible setting (plus or minus of zero) the gain bump/cut is pretty significant. that was a real bummer for me. i want an EQ that is subtle near the 0 mark and the gain added/subtracted gets more and more significant the further up/down the fader you go. imho an EQ is more useful that way.nicky noodler

Love my SG but it's a short jump from dark to muddy and this eq makes all the difference. The volume and gain controls allow you to get the exact tone/volume/presence/sound you want. Is the only pedal i use for rhythm and it stays on all the time. I'd never used an eq before and while you probably will spend some time getting it just right it's pretty simple once you see how it works. The settings in the instruction manual are fine but i think the best thing to do is set everything at zero and adjust from there. Left side is lows, right side is highs and you just bring out whatever is lacking in your tone now. You won't regret getting one of these.JP

This pedal is badass!! It works really well in the effects loop of my Blackstar HT-5RS. Putting it in the effects loop helps dramatically with the unwanted noise this pedal can produce. If you use it in the front of your amp, you will probably have to use a noise suppressor at high gain/volume levels. It really adds a new dimension to your guitar sound, though. If you have a warm sounding amp, this pedal can add a lot of high end to your sound. Also, used in conjunction with a British, high-gain amp, you can nail the Randy Rhoads sound. I highly recommend this pedal.momokonish

Built very solid, this pedal really does do what it says it will do. I like the fact that besides the 10 bands it also has a Volume slider and a Gain slider. This makes this one very versatile pedal. Easy to operate, Simple to understand, Very quiet signal processing and it comes with it's own power supply rather than sold separately. I can see why they hold their resale value on ebay. I put mine on top of the amp and run it through one of my loops so it is much more convenient than having it on the pedal board. But, either way works just fine. It's great for room shaping when moving from one venue to another and tweaks my guitar tone perfectly every time. Very little movement on the sliders produce quite a bit of adjustment so there is always plenty of headroom in all frequencies. Would buy it again. Would recommend it highly. You will be happy with it. I also like the way the sliders light up making it much easier to use in a dark environment. Plus the lights on the frequency sliders switch on and off with the foot switch so you can tell if it's on or not. The Volume and Gain sliders are always lit so you can see there is power to the unit weather in use or not.mycle812

Just plug your phone in and use the free toneprint app to add up to three custom toneprints! Several already in their database or create your own. Pedal can do 2 simultaneous harmonies, above and/or below the note you are playing. Button has built-in expression function which is pretty cool and useful! Awesome pedal!aaronplaysguitar247

First impressions. Fast tracking and good options. Well laid out pedal. Would be more useful w/ different scales rather than just major modes, but the modes are a fun way to interact. Tone reproduction seems very synthetic. (Used on sax not guitar). The mash pitch bend is a great idea, however the tone of the harmonised notes is so plastic that it's not worth it for me. The Digitech DHP55 harmoniser i had in the mid 90s killed this. But that was a high end rack mount multiFX unit. Maybe on distorted guitar this would be a lot more effective. This is a well designed user friendly pedal at a great price that I'm sure will be a lot of fun for plenty of players. EDIT: those were first impressions on the day it arrived. After playing around a bit more today I found adding reverb after the Harmonizer really helped. Still sounds plasticy but its a fun effect. The modes setting is actually is a good way to interact. Tracking is superb and it also does a good job of harmonising chromatic/non diatonic notes.27jjk

Let me start with… The only good features of this pedal are the esthetics and nothing else. Having tried out other tc electronic models this is a real disappointment. The pedal features C D E F G A B tonal options with # toggle with and mash for infinite tonal possibilities however… When it comes to the scales it offers 10maj, Dorian, Phygian, Lydian, Mixolydian, Aeolian and a custom form if you ever get them to work in the toneprint app. From the harmony perspective it offers -6th, -4th, -3rd, 3rd, 5th, 6th, 3rd and 5th, 3rd and 6th and 3 tone print options if you ever get to make them work. I downloaded the tone print app on my apple Mac and I never got it to work. However the iPhone and iPad apps work only if you invest on a 35$ on a convertor-cable. After careful playing around with then tone print app the toneprints never saved any of my custom presets. The minor thirds never latched on properly, the feel is plastic and not organic, even though it is a versatile pedal it really lacks in quality. The octave does not sound deep and round as other brands, the only good solid song are 5th or dual 5ths. I wanted to use this pedal for harmonizing either Iron Maiden or Queen riffs but I would suggest to jam it out with a buddy because this will definitely provide that sweet double guitar harmonized tone.Rickingo

Overall: This thing is great. I have been searching for the right pedal to use with my electric violin that is versatile and gives me strange sounds if I need them. This pedal does it all. I use it with a light rock acoustic type band, a gypsy lounge jazz group (from originals to Kashmir by Zep), and an electronic project that I am working on. Its sturdy (I dropped it a couple times) easy to program with almost an infinite amount of possibilities. Totally worth the price! My next pedal of any sort will be an electro harmonix.PS – when I used the Cathedral Pipe Organ with the mandolin it freaked my family right out. Because the kids are older, rarely do they peek in anymore to see what I'm up to. The Pipe Organ did it. So cool. Only possible bad thing to say would be that I would love to see more settings examples, but I understand most of us like to keep our secrets.Buy this pedal! The 5 star rating is no bull.Michael

First, I love this pedal. As a keyboardist, organist & guitarist, from the moment I plugged this in and from the first notes, I fell in love with the sonic possibilities of the multi-octave generators right from the start. After all, that's how the organ can grow to such a monstrous cacophony of tones: simply by stacking octaves. But this pedal goes further by allowing you to set the level for each particular octave. Amazing concept. The attack delay, LPF & detune, and their button controls, also round this pedal out as a fantastic tone shaping tool. Simply put, it is an amazing sounding pedal. Polyphonic tracking is dead on, sans audio glitches (except for that with my noise gate, below). The eight preset slots at first don't seem like enough memory for all the different settings this pedal can handle, but the more I use it, the more that eight become more than enough. Very intuitive. The only sonic downside I noticed was when I had this pedal installed after my preamp and Silencer noise gate, the gate seems to mess with the polyphonic tracking of the POG; this was quickly remedied by placing the POG first in the signal chain before the gate. This is a bit on the pricy side for an EHX pedal, but if you have the cash, it is well worth the money for everything it can do. You will love how it makes your guitar sound.JOHN

Primarily bought this unit to substitute for a bass in home recording. Set all the other octaves and the original signal to zero and the -1 octave to full. With my Strat played through my Fender Rumble 150 the bass sound is ideal for home recording. Not suggesting it would replace a bass at live gigs, although it could possibly in a pinch. With the +1 octave at maximum and the original signal at 3/4 and the others all at zero it emulates a twelve string within limits. By that I mean if you use a jangley strum style and emphasize the third and fourth strings you can get a near twelve string sound. The other settings result in some interesting sounds but nothing I have yet found a practical purpose for. It is a bit pricey but appears to be well built and durable. I said it was mostly what I hoped for because it did exactly as I had hoped as a bass substitute but I was hoping for a more realistic twelve string sound.PMc

I bought the MXR 10-band EQ because I have one bass that sounds drastically different than my other basses. This has proved inconvenient for both live and recording applications. I used this device to shape the EQ curve adding just a little bit of low Mid's for warmth and removed some higher frequencies to get rid of some of the fret noise. It works perfectly for this application. I can leave it plugged into my signal chain and just kick it in when using the one specific bass. Very nice!Thomas

I have mxr's 7-band EQ pedal in my studio, and it's excellent. Its only shortcoming is its lack of a master volume fader, but that's not a problem in the studio. I thought I would try the 10-band version (that has gain and volume controls) for my live rig. The unit was disappointing. Sound quality was OK, not great. The high end lacked transparency, and there was no fader centered on the critical (for guitar) 100 Hz frequency. Dialing in tones was a tedious task, made worse by the blindingly bright LEDs on the faders. They are so bright you cannot read the frequency designations on the casing without disengaging the EQ function. Not a well-thought-out design in my view. I returned it to the store.Gordon the Pro

Ordered this along with several other pedals for a new board back in April. EQ was backordered until recently. I was very happy with the new pedalboard but wow, once I got this eq pedal added to the mix, I'm so much happier. Have been playing for 42 years and I am now wondering how I ever did without one of these. I'm glad I opted for the 10-band model because it affords more precise adjustments and tone sculpting for various rooms and guitars. Again, this is now an absolute must-have piece of gear. If I had to let all my pedals go except for one, this is the one I would keep.Matthew

Distortion/overdrive/fuzz pedals are difficult to get right. There are different "flavors" of dirt, differing amounts available, and there's the issues around EQ coloration and loss of low end. The Aguilar Agro has a nice flavor (kind of retro tube instead of overly modern), a wide range of amount (from none to pretty fuzzy), but best of all what it does and does not do to your overall tone shape. I find that it does not lose my fundamental low frequency and it does not impose a baked-in EQ (such as a mid-scoop) for me to struggle against. It's just my bass, sounding just as it always does, but with a really nice crunch added to it. Simple. But hard to get right. Nice job, Aguilar.scottfeldstein

Minus one star because it's frankly overpriced. Otherwise this pedal is excellent and the best use of 4 knobs in any current envelope filter. You can get a little more out of some of the filters with 6 or 8 controls. But for effective simplicity this pedal is fantastic. You can get a modest variety of albeit similar sounds, but nearly every setting is usable. This alone is more rare than it should be in pedals. The twin filter is incredibly well tuned. And generally easy and pleasurable to use. The only issue I have is with its price. I design audio electronics professionally and can guess at the cost to produce. And the main circuit they sadly chose to pot. Someone looking to "steal" this non-patentable design could still do so but it makes modification and repair near impossible. They should ditch the potting and set a lower price because they should be selling more of these very good pedals.Marty McFlurr

With this pedal I'm able to get the perfect amount of grit for my bass while keeping the "sound" of the pickups and keeping 98% of the low end. Love this pedal! Will definitely purchase again if and when this one dies.Kevin

Decent effect for the size and for the money you pay for. Use it for a year for recordings without issues. The only pedal I need for bass besides compressor and octaver. Works for guitar or bass equally, easy to figure out settings. Compact, sturdy, good range of adjustments.ol-1486

Bought this mainly for the LFO sweep on synth bass lines. Found loads of other sweet sounds I did not expect . EHX pedals can get over complicated, but this was surprisingly easy to use.Paulie B.

Like the title says, I've tried just about every filter on the market… the Q tron plus is the one! The only bummer is the volume boost, but there is an easy solution: you can place a micro volume pedal in the effects loop, or order a custom true bypass loop with a volume for the pedal. I though Q balls series was ok, but there is always a few milliseconds of a delay in the tracking, even when at the fastest (most counter clockwise setting) setting. Therefore, despite the great versatility of the Q balls ( by the way, I thought the Riddle Q balls was better than the enigma q balls because the enigma has a weird, fast automatic envelope close on all your releases, whether you like it or not; and with the Riddle you can fully control the decay and how it closes) the Q tron plus still reigns because of its great, instant tracking and great sound. The slow response setting on the q tron sounds excellent. Mix mode sounds great as well. So far the best sounding filter I've found........

This was exactly what I was looking for. It’s been tough being a musician with pretty much all the gigs being canceled. American Musical Supply is so clutch for having monthly payments to help get the gear you need especially during these COVID times when things can be financially tough. I always use AMS whenever I need to purchase any sort of gear!Anthony

Really versatile envelope filter with effects send and return. Really good fun to play with. Didn't realize that it's a 24v pedal so make sure you take that into account before buying. It also comes with its own littler power supply.George Q.