What I like most about the pedal is that the dirt channel really helps the mids and highs speak. This solves a problem I've had with a Fender Jazz and a Cort JB bass. Both are good basses but the mids and highs weren't cutting through the mix in a classic rock band playing through a Rumble 500.

I would have liked to see a channel that just adds the tube preamp that without otherwise affecting the tone.

Another thing I would have liked is not having to use the gain at all.

Generally speaking this product is high quality materials and workmanship and does provide a great deal of flexibility and capability.

What I didn't like:
1. The EQ section bass frequency spread is limited and is too close to mid-range. The Clean section sounded best to me. Having the Dry/Wet for the Clean section would be a good addition. Having to use another EQ device to compensate for bass frequencies make using the ReVolt more complicated and takes another slot on the pedal board. The ReVolt occupies a lot of space itself.
2. Not having TRS connectors robs the ability to line up the pedals in stereo. The ReVolt is limited in its placement in the effects chain. Stereo throughout the effects chain makes a difference at the mixing board where Pan can be used to mix signalling nuances from effects pedals. Some players want to place the ReVolt either at the beginning or at the end of the effects chain. The connector limitation makes doing this more difficult.
3. Not being a 9V unit means running a separate power supply for pedal boards that don't support various voltages. This is messy. It is what it is given the way the unit is designed to operate.
4. I thought the Dirt section sounded more like Drive than the Drive section. Drive is more fuzz than distortion, IMHO.

Given what I've indicated, most of the ReVolt would not be used much by me thus, the price point isn't attractive from a cost/benefit perspective.

Clean channel is fat and clear, dirt channel can be subtle or rip, the drive channel is usable and has a lot of gain available. I'm using a Fender P and a Sire J and get all of the tones I want from it. Headphone having the cab sim available is great since I do a lot of apartment practicing. Fx loop is handy since I run reverb and want it out of the way. No complaints except it's a power hungry monster but nothing my Truetone CS7 can't handle with the other six pedals on my board.

For Bass, I have a Darkglass Microtubes 900 v.2 head and two Ashdown ABM-410 Evo IV cabinets. I have a Darkglass 4-way Intelligent Switch. I've used four Mogami cables between the Darkglass Head and the Two Notes ReVolt Bass Amp Simulator Pedal. Bottom Line: I can get the rig to sound like an Ashdown, an SVT, a Darkglass, a Marshall and a whole lot MORE! I can get 9 different variations of gain and distortion, as well as crystal clear bass, WITHOUT turning any knobs! I really don't need anything else!
This pedal really shines when you hook it up to a guitar amp. It can make a Laney sound like a Marshall; and a Strat sound like a Gibson with Dominator Pick ups!
I haven't really used as a DI pedal. I have used it alone with headphones. Great way to practice without bothering the neighbors.

Wonderful pedal giving the wonderful three tones I look for. The SVT classic sound. The crunchy early "Yes" bass tones and the way to much distortion overload that is still musical sounding. Double tapping bypasses the pedal leaving you your clean input tone. A simply loveluy pedal well worth the money.

So I bought a Sterling ray 4, that had an amazing fast slim neck. Hated the sound, so I gutted it and put in a passive Seymour Duncan musician pick up. Was really mid rangy now. I tried an EQ pedal but that didn't do it. I researched preamp pedals and came across this Two Notes Revolt for bass, with an actual 12ax7 tube in it. It was exactly what I needed to boost the bottom end on this bass. After falling in love with the pedal, I ran my Lakland DJ4 through it. Talk about amazing!!! My signal chain is as follows, Lakland dj4, or Lakland 44-64, or Sterling Ray4 to Shure Wireless GXLD 14, to Two Notes tube preamp, to Mesa Boogie subway WD800 hybrid tube amp, to Mesa Boogie subway 2-12 cabinet. My rig sounds great! Working on getting a mesa subway 410 to run instead of the 2-12 though. Iv'e always been a 4 10's guy, just wasn't to keen on dropping 2k into a single cabinet lol.

I have had this pedal for about a year now. I play it primarily through a solid state w/ the eq set pretty flat. The clean (svt) channel sounds great. It stays clean but adds some heft to your tone. I primarily use this channel at this point. The 2nd channel (marshal) was initially my primary channel. The circuit has a strange quirk to it. When you first play it's very fizzy, but it rounds out. It sounds good after that. This first few notes bother me though. It's really weird. I dont have a lot to say about the 3rd channel. It's just a sound that I don't usually think to use. My current set up is a rickenbacker 4003 or guild b-301 through a fender rumble 500. I bought this pedal to simplify my rig. After about 6 months I found myself slowly adding other dirt pedals back to the mix. I don't dislike the unit overall, just not sure I would buy it again.
Pros- if you use this as your tone control you can basically walk in anywhere and use any amp to get your tone. The DI sounds good. The svt channel has some great tone.
Cons- the first notes you play on the OD channel sound bad. Sounds good after that. I think 400 is too much considering the issues on the OD channel.

The cleans are super clean and I love the dirt sound. Modern drive sounds cool but I don't feel play anything that would use it.

This is a Digitally controlled unit, but the signal path is completely analogue. It completely captures the Ampeg SVT and the Marshal Major preamp sections so well, that I rethought my whole approach to amplification. I used to be a heavy Iron small pedalboard (if any pedalboard) type of player. I really didn't think I could get that tone with anything small. With the Two-Notes Revolt Bass preamp, the ground it covers with classic tones as well as modern options with an amp out, XLR out, send and return, CAB simulation on the XLR out and the headphone out (Ampeg 8x10, done extremely well BTW), I can simply plug my Revolt Bass into and amp input section and give the FOH feed from the LR, I literally can carry my sound anywhere I play. No back breaking amps and cabs (small venues of course). Larger venues, With only minor adjustments, I can easily adjust to pretty much any amp section to get my sound. Also, if there is no amp, I can get a monitor mix and still be up and running. Bottom line: This is the best preamp I have ever used. Super versatile and analogue signal path with a 12ax7 tube at 200 volts. At this price point, even some units that are over $1000, you can not go wrong and you WILL NOT be disappointed!

I used to play through an Aguilar Tone Hammer which didn't really change much for the time of my bass. Once I plugged this in and played I was in automatic awe. The tube warmth is crazy and sound enormous in my IEM's. I'm mainly in the cover/top 40 band scene here in Orlando so this paired with my Stingray Special 5 HH is such a dynamic duo that allows me to cover a lot of ground. The amount of things you get for this price point is definitely worth it in my opinion. I especially love the FX loop to connect my Chorus and the option to engage or disengage the cab sim for certain applications. There's really only a couple of cons for me.

1) I don't care much for the Modern Drive channel. I lose a lot of low end and the drive circuit is VERY fizzy and not something I would use. I primarily use the Clean Channel for most situations and the Vintage Dort Channel gives me all the drive I need for the grittier songs. I probably would've like it better if the Modern Drive channel had its own 3 band EQ. The blend knob does help a little but it blends the DI signal of your bass which I can a little weak and separated.

2) I wish there was a level knob for the headphone out for silent practicing. I find myself having to turn the volume on all the channels pretty much all the way up. When I practice at home I usually plug my pedalboard into my analog mixer which has gain settings and its own headphone so I don't necessarily need the headphone out from the reboot but it would be nice to have the option for when I'm on a gig or out of state so I can just use my pedalboard.

I wanted a high quality bass amp/cab replacement (IR box) for use in a semi-professional home studio to be able to dial in a wide range of tones (running into an Apollo X8P and recording in Logic).I have some pretty great UAD2 amps to use with the Apollo, but wanted a more "hands-on" feel. I originally (and very excitedly) bought the brand new Ampeg SGT-DI, but was honestly underwhelmed with many aspects of it - notably, the "grit" (overdrive) sound, which I found to sound like an endlessly crispy fart…played through a blown speaker. That's how I'd describe it, sorry fanboys. It's not for me, not even on the lowest settings dialed to taste. Frankly, I hated the sound no matter what I tried to do to make it work for some use cases. The cleans were fine, pretty great, even - but nothing much beyond that. Yes, both the SVT/B15 circuits sounded great on their own, adding in some nice character, but not if dialing in any more than a tiny pinch of the grit (overdrive). I found it unusable past 9:00 (1/4) of the way up. When it comes to bass overdrive, I wanted a healthy growl…something that makes my bass sound like a grizzly bear or a lion snarling at a pack of nearby hyenas. I also found the compressor to be borderline unmusical past 10:00…ymmv but I might as well have let it off since I'd be using a proper studio compressor instead anyway. Lastly, while most of the pedal is very nice looking and very solid, there are some notably crappy-feeling plastic dials/Iswitches on the side that give me pause. These don't match the rest of the pedal in look or feel - it's weirdly cheap feeling and flimsy. Not easy to access and dial in smoothly, either. Ah well…bob's your uncle. I took a chance and ordered the Two-notes revolt (Bass), despite it only having 2 reviews. Wow. What a difference. A smile on my face on the first runs played on the clean channel. I switched to the 2nd channel, dialed in some drive, and boom - there it was. That thumps, growling character I was looking for. As for the Third channel - it's fine, but not for me. It leans a bit closer to that sizzle-fart drive sound I mentioned earlier about the Ampeg, but admittedly sounds far more musical if I were going for that sound. The first 2 channels in particular (clean and vintage drive) are EXACTLY what I had hoped for, and will cover such a huge range of tones. The build quality is tip-top across the board. The dials feel weighty and smooth, and give a feeling of reassuring quality throughout. The sole cab-sim on board is based on an Ampeg 810, which sounds great and was the cab choice I preferred from the SGT-DI anyway - so I'm getting what I liked from the Amoeg pedals sound anyway. You really can't go wrong with the 2 notes - it's a fantastic piece of kit in every way. It covers all the bases…and now…all your bass are belong to us.

My first instrument was the bass, but my stepfather suggested I play the guitar because it had more strings ???? Anyway I started on guitar at age eleven and by the time I graduated high school I found myself in Philly winning a spot in a major studio because out of over twenty five guys who were all better than me, I was the only one who played the (chart) paper. Well I'm getting calls to play bass for a couple national acts. I use two Sire (4&5 string bass guitars along with a Ibanez "fan fret" five string bass that I really love! If I have to do a fly date I don't want to drag a ton of gear on the road so I spec out a few bass rigs that are on stage for just the tone and not volume.
With that said just how to maintain a level of sonic quality?
I saw the Revolt Bass PreAmp and liked the concept of a 12AX tube in the preamp and out of the three channels on board the Revolt the first channel is a sim of the classic Ampeg SVT. I doubt I will venture into channel two (Marshall or three Modern sim with a blend wet dry knob).
I have to say when someone mentions a cabinet sim or amp sim I tend to roll my eyes because it usually equates sales BS. For my playing style I need clean sound period! The Revolt Bass Preamp is nothing short of perfect for me. The build is quality first and foremost. I really like the solid feel of the controls and first and foremost feature is the sound.
I have a pristine Ampeg SVT and a Ampeg B15 in my studio and with a one on one comparison with the Ampeg SVT against the Revolt and I have to say the makers of the Revolt nailed it! Another feature I really like is the ability to properly insert a FX into the proper point in the signal chain. For me with the Revolt I have a little compressor from TC that I got through Sweetwater and that combination for me works perfectly! The combination of the two units work for me. Why? I can get my main bass, Revolt, TC Comp and cables in my MONO gig bag and hop on a plane with everything I need to pull off a quality pro show. PS I also have to say I have had two Revolt Preamps with the first having the preamp tube out of alignment and not seated fully in the tube socket. The unit worked, but Sweetwater sent me a second unit with a RMA and I sent the first unit back. Before anyone blames Revolt, if you have ever shipped anything they know that a product can take a hit during shipment. In this case even with the preamp tube not seated properly the unit still worked!
Once again Sweetwater came through again!

I bought the guitar version of the ReVolt pre-amp and had the bass version on reserve as backup. That turned out to be a wise decision. I worked with the guitar version but it was a replay of the Saturday Night Live Cowbell skit, only with treble. Somebody at Two notes kept saying "Treble, we need more treble."

I thought, maybe the bass version would, presumably, have more bass. I was correct in my thinking. Not only does it work well with a guitar, It's a great bass pre-amp. It brings out nice round tones in my Danelectro 56 reissue bass. I'm quite happy with it. It complements my Eden WDTI bass pre-amp. I was surprised to hear it deliver a rich tone the Eden never gave me. The guitar ReVolt needs a pre-amp of its own to control the treble. That's unless you prefer ungodly amounts of treble. I would recommend the Two notes bass version for bass and guitar.