The Drunk Beaver Heavy Bat is the "ultimate Rat-style pedal" (at least according to Stefan Karlsson of the Guitar Pedal X blog), who says that the Heavy Bat is "probably my favourite ever Rat to date - even against something as excellent as JHS Pedal’s PackRat."
The Heavy Bat takes the guts of the Bat and Bat Cold War and adds tons of additional switching and modifications for what must be one of the most complete pedals in this genre - ever!
Heavy Bat EQ
Key to its flexibility is the switchable EQ section, which allows you to choose either the "Classic" one-knob Filter control of the Rat, or "Heavy" to activate a Boss Heavy Metal HM-2-style 3-band tone stack consisting of Low, Mid and High controls.
Heavy Bat Clipping Modes
The Heavy Bat has 8 clipping modes, independent for each channel:
"LED" - 2 red LEDs
"None" - raw op-amp clipping
"Si" - silicon 1N914 as used in the original Rat
"Soviet Si" - silicon KD541A
"Hybrid" - germanium and silicon diodes in combination
"MOSFET" - BS170 transistors
"Ge" - NOS Soviet D9 germanium diodes (asymmetric)
"BAT" - BAT85 Schottky diodes
Heavy Bat Op-Amp Modes
The Heavy Bat has a rotary switch to select from 4 different op-amp chips (twice as many as the Bat and Bat Cold War!):
"Classic" - a NOS LM308 as found in the original Rat)
"Soviet" - a UD1408B (Soviet LM308 clone as used in the Bat Cold War)
"Modern" - a Motorola TYA34083 (similar to the chip used in the Wampler Ratsbane)
"Ancient" - a NOS Czech KA741, a variation on the LM741 used in early distortion pedals such as the MXR Distortion+
Heavy Bat Controls
As well as the various Clipping and Op-Amp modes, the Drunk Beaver Heavy Bat features per-channel Volume controls, a Distortion control and a Blend control which is especially useful for retaining some of your clean signal when playing bass or down-tuned riffing.
The dual-footswitch design allows you to switch between two diode settings on-the-fly.
Heavy Bat Demo
Heavy Bat Features
Ultimate dual footswitch Rat design featuring NOS components
Handmade in Poland
Select from classic or HM-2 EQ sections
8 Diode Modes, selectable per channel
4 Op-Amp Modes
LED brightness trimmers: PCB trimmers allow you to adjust the status LED brightness for each channel
Had a few vibes, absolutely loving this one, check the YT demos, lovely satisfying vibe with all the swirly goodness you could hope for. Beautifully made and reasonably priced. Highly recommended - and Jim at Boost is a top guy
I came across the Formula B Fuzz Rangers via online demos on Youtube, and they all sounded so good that I had to get one. Looking online I found the Boost Guitar Pedals website via the Formula B website as a listed UK stockist. Jim was excellent and the pedal arrived when he said it would and it was perfectly packaged. I would have no hesitation in buying any other product from Boost.
As for the Fuzz Rangers, it is a great pedal. I had to work at it a touch to get the sounds I liked from it, but it seems to react really well to different guitars and different amps with adjustments to volume and tone on the guitar and different amp settings. I found it works best into a slightly cranked amp, and volume roll-off on the guitar offers a great variety of sounds from clean to classic fuzz. Thoroughly enjoying the pedal. Well done Jim, great website and a great selection of interesting brands and pedals..... Which one next????
Having used a number of univibe clones over the years this one truly nails the sound for me, it comes with some clever additions in a pedal board friendly size and is excellent value for money. If you want the true sound of the original this pedal delivers.Special thanks to boost Guitar Pedals for putting this deal together so quickly..
I'm still working my way through all the sounds, but so far I'm loving them all.
Each time I think I've got a fav sound I flip the diode switch and there's another one. Great value for a four-in-one fuzz pedal!!
Both modes really useable. The first can get a wooly or starved/wolly sound or more nasally raw sound depending on how you dial it in.
Mode two can be more mid focused and with both switches down it's just a real nice deep, warm wall of fuzz. Great stuff.
Awesome pedal. Does everything from short slaps, to long endless delays, or echo-verb. The infinite delay feature on the button hold is interesting, though if you need a certain sound out of it like that, you have to be okay with the sound that those settings create when the infinite hold feature is off. I’m sure it will be great for recording some interesting textures, but I don’t think I’d use it live, as the infinite hold sounds glitchy and cuts off very quickly at some of the shorter, more subtle delay settings that I use. The art on the pedal is nice, and the build quality is solid. Comes with a carry bag, for some reason, but I can’t complain. A great unit by any standard, but especially good quality and features for the ticket price.
This pedal is simply fantastic.
Great fuzz with a good sweep of control with the guitar volume pot. Cannot get an unlikeable sound through any pickup selection single coil/humbucker.
Added benefit of the Rangemaster included is just lush. I am preferring boosting into the fuzz and use the boost into other drives along the chain.
I am praising this as 2 great pedals in one comfortably sized housing. Amazing!
I have held myself back from purchasing a vibe for years now but I took the plunge on this and I am extremely happy.
The size of the unit is great on my board and pairs with my drives and fuzz amazingly well. I am preferring the flavour of keeping it pre-gain stages on the board.
Simple controls with the added benefit of 2 speeds.
I highly encourage anyone else who was on the fence like me, go for this!