BRISBANE (07) 3892 3292

Catalinbread Formula No. 55

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Next-generation 5E3 Tweed Deluxe inspired Foundation Overdrive with incredible range – from Grant Green to Crazy Horse!   Turn your amp into a 100 watt tweed Deluxe!   Well no, but that’s what it’ll feel like when you plug into your new Catalinbread Formula No. 55! Big and powerful, yet refined, the...

Next-generation 5E3 Tweed Deluxe inspired Foundation Overdrive with incredible range – from Grant Green to Crazy Horse!


Turn your amp into a 100 watt tweed Deluxe!


Well no, but that’s what it’ll feel like when you plug into your new Catalinbread Formula No. 55! Big and powerful, yet refined, the Formula No. 55 melts into your amp, transforming it into a wide ranging tweed monster capable of everything from smokey, clean Grant Green jazz tones all the way to full on raging Crazy Horse excursions!


The old amps from the 50s were primitive beasts and the 5E3 Deluxe was no exception. Its preamp section let a lot of low frequencies through but then it would encounter an output section (power tubes, output transformer, and speaker) that couldn’t handle all that low end, often resulting in a flubby response, especially if you turned the Volume up. In fact, if you look at the manual from an old 50s tweed, it advises you to “turn down the Volume should you experience any distortion”. Of course, a lot of guitarists ignored that advice and cranked it up anyway, much to Leo’s chagrin, and the sound of rock was born. The Formula No. 55 gives you that huge low-end response but was specifically voiced for touch-sensitive dynamics and a fat, but tight and punchy sound. You can play a palm-muted boogie-woogie rhythm pattern, for example, and if you don’t bear down too hard with your picking attack you’ll get a big chunky, woody sound, the kind of sound that you’d think would flub out if you suddenly started strumming harder. But start thrashing away and the response will get tighter instead of flubbing out! You just have to try it for yourself to see!


The Formula No. 55 is a Foundation Overdrive that reproduces, in exacting detail, the preamp section of the classic Fender™ tweed 5E3 Deluxe using an all-discrete JFET-based signal path. The Volume and Tone controls replicate, part for part, the circuitry of the 5E3, giving you authentic tweed amp response. The output section is designed to give you lots of punch and volume with a low output impedance to drive your amp perfectly. Set the Hi-Lo button to “Lo” for the cleaner response of a vintage tweed. “Hi” is like hot rodding your amp by swapping in higher gain tubes.


Like all Catalinbread pedals, no SMD parts are used for audio circuitry. Only through-hole components selected for tone and response are used such as carbon composition resistors and premium capacitors. We hand-build them and we tone-test each one to ensure you get the best we can offer.



Volume: From warm fat jazz clean to thick horn-like barking overdrive.

Tone: Noon for flat. Turn down for warm, smokey tones. Turn it up to boost upper mids and cut through the mix.

Presence:  Adjusts ~ 5khz range. Set to noon to start. Turn it up for more bite! Turn it down to warm things up.

Master: Sets output level. Lots of boost on tap.

Hi-Lo Button:

    Hi/Red: Like swapping in hotter tubes, for more gain, overdrive and attitude.

    Low/Green: Low gain mode from clean to overdrive

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 10 day 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!

Please don't email 5 weeks later and say there was an issue within the first 2 days or something like that because we won't be able to cover it.

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 5pm so just call if you need it to leave same day after 2pm.

We ship with Australia Post and a variety of couriers depending on location.

Free Post ships with Australia Post standard and expected shipping times are between 4-6 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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