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Big Tone Music Brewery Royal Beaver

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We've taken the experience that we've gained at BYOC over several years of studying vintage big muffs inside and out, perfecting the art of recreating vintage muff tones, and helping thousands of people build and modify their own big muff clones, and used it to design what we consider to...


We've taken the experience that we've gained at BYOC over several years of studying vintage big muffs inside and out, perfecting the art of recreating vintage muff tones, and helping thousands of people build and modify their own big muff clones, and used it to design what we consider to be the holy grail of big muff pi inspired guitar effects.

After countless experiments, we've distilled the essence of what makes each version of the big muff different. We found which components were crucial to the tone of each version, and how to manipulate them so that the tone of any version can be acheived. Not only can it dial in vintage muff tones, it can dial in new tones that you've never heard before. Everything from a gritty low gain overdrive/boost to an over the top, crushing distortion that goes into endless feedback and sustain, even at whisper-quiet sound levels..

Transistor Configuring Controls

You have complete control over the V+ (positive voltage), gain, and bias of the transistors in each of the clipping stages. These knobs allow you to sculpt and mold the tone and texture of the fuzz into your dream muff. You can dial in the tone of any version of the Big Muff Pi - Triangle Era, Ram's Head, Vintage NYC, Green Russian. Or you can create your own new muff tone. Anything from creamy sustaining distortion to gated ripping-velcro fuzz. In addition to being able to control the sound of each clipping stage, you can also bypass or turn each stage on individually. And we've added a 3rd clipping stage to the circuit. This means you can have a one, two, three, or even zero clipping stage muff circuit.

The original muff circuit consisted of two clipping stages with a boost in front, and the tone control and another boost tacked on at the end. So with two of the clipping stages bypassed and only one clipping stage engaged, you get a grindy overdrive-like fuzz that's capable of low gain tones that you just can get by turning down the sustain knob or your guitar's volume knob. And with all of the clipping stages bypassed, that leaves you with two cascaded boost circuits with tone and sustain controls for a gritty boost to slam the front end of your amp and send it into singing overdrive. With all three clipping stages engaged, you'll enter a new sonic territory of high gain fuzz and never-ending sustain that no other incarnation of the Big Muff circuit has ever been capable of. And of course, you can turn on just two of the clipping stages for standard muff tones.

4-Way EQ Knob

All of the original Big Muff Pi circuits have a very scooped out mid range. While we've all come to know and love this tone, it's still nice to have a more versatile tone control. The 4-Way EQ Knob gives you 4 different styles of tone control to choose from.

  • Scoop - This is the classic Big Muff Pi tone control with a heavily scooped out mid range.
  • Flat - This setting replaces all the mid range frequencies that are lost with the typical Big Muff Pi tone control and just boosts/cuts highs and lows so that when you have the tone knob at 12 o'clock, you get a flat frequency response. This setting is great for not getting lost in the mix when playing live.
  • Mids - This setting adds a boost to the mid range frequencies. It's ideal for dialing in lower gain overdrive tones.
  • None - This setting removes the tone stack completely from the circuit. When in the none position, the tone knob does nothing at all. This was a feature found on some versions of vintage muffs. By removing the passive tone stack, you get pure, unfiltered, aggressive, muff tone. You also get a pretty big volume boost too!

    The BigToneMusicBrewery Royal Beaver features all panel mounted hardware, including open frame Neutrik jacks, true mechanical bypass, and is soldered, wired, and assembled completely by hand in the USA. The pedal is topped off with a pink or purple LED (we can't decide which colour we like better).



    All New products are covered by the manufacturers new warranty. Please check their website for the length of warranty and warranty conditions.

    If an item you receive is faulty get in touch with us ASAP.

    Second Hand products come with a 4 week warranty from us. If there is an issue let us know ASAP!

    This covers normal use and does not cover accidental damage, misuse, wrong power plugged into it, modding, water damage or any other damage caused by mistreatment.

    Just treat it nice and all will be good!

    We send A LOT of packages every week so don't worry about the shipping side of things!

    We've never lost a thing and your awesome new gear will be packed up really well to avoid any damage in transit.

    If your order comes in before 2pm we will ship it same day. Most of the time we pack things up all the way to 4pm so just call if you need it to leave same day after 2pm.

    We ship mainly with Australia Post but may use a courier depending on location and size of the package.

    Free Post ships with Australia Post standard and expected shipping times are between 4-6 business days depending on location. It will be longer to outside of metro and rural areas.

    Express Post will usually be with you next business day in metro areas of QLD, NSW, SA, VIC and TAS. WA will take 2 days to metro and extra days after that to out side metro and rural areas.

    Everything we ship has a tracking number with the exception of some power cables and smaller envelope packages. You will be emailed tracking once your order has been shipped!

    "LOVE IT Or Exchange It Within 14 Days"!

    The item MUST BE sent back in the same condition it arrived in and have all the materials it arrived with (manual,warranty card,all accessories) and be packaged in the original box.

    Items returned in undesired condition (scratched,chipped, etc) will be subject to a restocking charge of up to 30%. Modded items will not be refunded!

    Postage must be paid by the purchaser to get the item returned to us and we will exchange at our discretion the amount of the products but not the postage costs.

    Items must arrive here within 14 days of your order being placed.

    Some items cannot be returned like Pedalboards you have already put velcro on, strings, pedalboard tape, Cables and DIY cable kits.

    Please don't use the Manufacturers box as the packing box or you will automatically be charged a 30% restocking fee!

    Email us BEFORE returning your items so we can resolve or sort out any problems you may have and just so we know to expect the item. You may also want to insure or register your item as we don't take responsibility for lost or damaged post.



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