hi power pedal crazy tube circuits Crazy Tube Circuits | HI POWER | Colorsound & Hiwatt Amp in a Box | Dual  Overdrive
SKU: 19189824021
hi power pedal crazy tube circuits

hi power pedal crazy tube circuits Crazy Tube Circuits | HI POWER | Colorsound & Hiwatt Amp in a Box | Dual Overdrive

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Description

hi power pedal crazy tube circuits Crazy Tube Circuits | HI POWER | Colorsound & Hiwatt Amp in a Box | Dual OverdriveHI POWER is our next endeavour in pedal + amp in a box overdrives inspired by the sonic combination of two British tone machines that helped shape the sound of Pink Floyds Wish You Were Here Album. On the right side of the pedal, you will find a recreation of the Colorsound Power Boost featuring the true to the original spec BC184 transistors running on 18V DC (via an internal voltage booster circuit) and the ultra flexible 2 band Baxandall EQ


HI POWER is our next endeavour in pedal + amp-in-a-box overdrives inspired by the sonic combination of two British tone machines that helped shape the sound of Pink Floyd’s Wish You Were Here Album.

On the right side of the pedal, you will find a recreation of the Colorsound Power Boost featuring the true-to-the-original spec BC184 transistors running on 18V DC (via an internal voltage booster circuit) and the ultra-flexible 2-band Baxandall EQ circuit. We’ve added extra features, like a bypassable master volume control, a reverse-log gain control to ensure better sweep and transition from clean to mean (compared to the original’s linear taper) and a toggle switch the engage the latter higher gain / lower headroom version of the original boost circuit called Overdriver.

On the left side of the HI POWER you will find an all-analog circuit set out to emulate the sound and feel of a Hiwatt amp. Following the path of the famed British tube amplifier our circuit offers authentic amp tone and feel. From the big bold high-headroom clean sounds to the face-melting crunchy tones.

True to the last detail we have included the full EQ section along with a presence control located at the negative feedback of the power amp simulation circuit. A headroom toggle switch selects between the high headroom 100w power section provided by a quartet of EL34s or the lower headroom and compression provided by a 50W power section with a pair of EL34s when hit hard. Similar in operation to the original amp design the master volume control was designed to produce more gain at higher settings.

We’ve taken our design a step further by adding a switch to select between input channels. You can select between the full frequency response of the normal channel of the amplifier, the increased presence and tight low end of the bright channel input or the enhanced frequency response and added gain of those inputs linked together.

Like our other dual overdrive/amp-in-a-box designs we have also included a passive effects loop to give you the option to connect your beloved pedals between your booster/overdrive and amp in a box or use the two sections as separate and independent effects when using an external bypass switcher/looper.

HI POWER also features a power-up bypass/engage pre-set function for the onboard footswitches. That way you can select which state your pedal will go to when you plug the power supply. This function comes in especially handy to people that use remote pedal switchers / loopers as they only set the power-up state of the pedal once and then operate from the controller.

Warning: This unit was designed for 9V DC input only. Do not use a higher voltage power supply.

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Exchange/Return Notes
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SKU: 19189824021

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JAD
Lake Worth, US
★★★★★ 5
Excellent product, great for travel
Color: Cocoa
I just got back from a business trip and this is by far the most useful passport holder/wallet I've ever used. Lots of room for cards, bills, boarding passes, and a second passport and still folds very flat. Leather is good quality, and is very well put together. Since its too big for my pocket and will mostly live in my briefcase, I expect it to last a very long time. The only drawback is the high price, especially since the leather is probably not full grain (it's not advertised as full grain, so we can assume it's not). But it fits my needs perfectly, even if it is a little overpriced.
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Reviewed in the United States on October 14, 2023
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Verified Purchase
Faith K.
Lake Worth, US
★★★★★ 5
Highly recommend.
Color: Cocoa
My favorite purchase for a recent trip across three continents. Fits in pocket (I mean it’s a tight fit, but it will fit). Perfect in cargo pant pocket. Has two separate compartments for paper bills which is nice - you can keep your home currency in one and travel currency in the other. Really sleek looking. Bought four of these and we all loved ours. Highly recommend. 
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Reviewed in the United States on July 15, 2025
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 4
Nice wallet. Just received it and used on trip to Italy
Too early to rate for durability, but it came quickly, looks nice, and appears to be well-made. Was a godsend on my trip to Italy and back. With all the times you have to show your passport (usually dragging your luggage with you), my passport was always at the ready, secure in my wallet in my pocket. I would not travel abroad without it. Not only that, it will serve as my daily wallet as well
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Reviewed in the United States on May 31, 2023
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Verified Purchase
Josh
Omaha, US
★★★★★ 5
Pen holder feature isn't good
Color: Cocoa
Edited review: previously I gave this a two-star review because when I inserted the pen into the pen holder the wallet couldn't close anymore... I tried taking it out putting it back in a few times and it seemed obvious to me that something was wrong and I just could not figure out why the wallet possibly was having an issue closing even though it's designed to hold a pen... To me it seemed obvious that when inserting the pen you should have the clip on the inside where are the bills go.... That single millimeter of space that that clip takes up in the bill fold causes the wallet to not be able to close properly so it springs open. Needless to say that felt extremely cheap for a product of this price and I was very unhappy and considering a return and after writing a bad review I happen to see product pictures with the clip on the inside of the wallet where your cards go and it dawned on me that I had just simply put the pen in in the wrong orientation. That completely solves the issue. So updated back to five stars, and the wallet is great. 2n update after using it for a week on an international trip so I was carrying my passport. Worked great - made me feel safe to always have my passport and room for all my most important documents inside a -just- large enough for a passport wallet. I really don't think they could have saved another millimeter and still made such a quality wallet. Having a micro pen in there is icing on the cake - makes you feel like James bond. I also felt safer having a hidden bill compartment so your not showing a fat stack of foreign currency (I mean depends on your use case but I was in some rather poor areas and this added some peace of mind and 'security' in my opinion). You can just keep some small bills up front and your real stack on the hidden flap. I won't dock a star for it - but keeping this on a back pocket so you're sitting on it because it's bigger and the way it holds cards after just one week there's already card imprints on the leather (just imagine your older leather wallets where the cards start wearing through the leather) Also I tested the RFD blocking and it indeed works. I'm unable to scan any cards through the wallet and that was an important feature to me. Even when the wallet is open and I ran scanners directly over cards (in the sleeves) it still didn't pick anything up.
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Reviewed in the United States on February 1, 2026
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Verified Purchase
Jeremy N.
Lake Worth, US
★★★★★ 5
Works
Color: Cocoa
Good wallet that can fit a passport, hold cash, and cards. “Hidden” pockets too, but that just means more storage space to me. Soft and supple leather that gets better when conditioned and cared for properly. Main feature I like is the RFID blocking, I only get wallets that have it. Expensive- yes. Works, also yes.
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Reviewed in the United States on October 23, 2024

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