Zashabuti Zamp

spi

spi

Well-known member
Zamp Deep Specs - Zashabuti

ZAMP is the world’s first analog tube amplifier emulation built into a small pedal format – true tube amp tone without the glass, high voltage and $10,000 vintage price tag.It is not a glorified overdrive - distortion pedal shunting an op-amp with diodes or with FETs trying to be an amplifier. ZAMP contains real analog circuits emulating two12AX7 preamp tubes, one 12AX7 Cathodyne driver and two 6V6 output tubes.
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and

All overload is based on infinite logarithmic limits that produce low order harmonics as tubes do. The ZAMP never “clips” and for that matter vintage guitar tubes don’t either. This would involve levels of negative feedback not found in such amplifiers.

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Do I want this pedal? I'm not sure yet.

Do I want to see the schematic so that I can decipher the marketing BS? Absolutely.
 
Upvote 1
Robert said:
Could I interest you in a magical gold box that does things no other gold box has ever done?

* It's actually just an image at the moment, so more of an NFT than an actual pedal
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I mean, I just bought a 1977 V2 Mistress so you might as well hit me up while my wallet is out…😂
 
The more I think about it, this whole thing sounds fishy and I'm expecting a whole new era of misleading pedal marketing... I bet there actually are five tubes in this thing and they're just pretending they've achieved the ultimate analog tube emulation.

It's the only answer that makes any sense.
 
That's a lot more ICs than I was expecting.

Did it sound good, or did you take it apart before you tried it?
 
pbrommer said:
Can one of you super geniuses explain to me how a logarithmic value can make something sound linear?
o_O:LOL:
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That's actually the one part that is true. Since our ears perceive changes in volume non-linearly (a linear increase in signal does not correspond to a linear increase in perceived volume), a log pot fixes it. That's why most drives have log pots on their volume controls: it sounds more like we perceive it.

Despite the fact that a majority of pedals use log pots, I've never seen any fanfare in their marketing about it, which makes it all the more over the top.
 
spi said:
That's actually the one part that is true. Since our ears perceive changes in volume non-linearly (a linear increase in signal does not correspond to a linear increase in perceived volume), a log pot fixes it.
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That was wild how much text was devoted to that. You don’t need to zamp-splain that you used a control for it’s intended purpose.
 
spi said:
That's actually the one part that is true. Since our ears perceive changes in volume non-linearly (a linear increase in signal does not correspond to a linear increase in perceived volume), a log pot fixes it. That's why most drives have log pots on their volume controls: it sounds more like we perceive it.

Despite the fact that a majority of pedals use log pots, I've never seen any fanfare in their marketing about it, which makes it all the more over the top.
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That’s what was hilarious. Wordsmithing to say “I use a log pot because it sounds normal to the human ear”
 
spi said:
That's a lot more ICs than I was expecting.

Did it sound good, or did you take it apart before you tried it?
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I almost never try things before taking them apart, this was no exception. I may plug it in later though just to try it out.
 
pbrommer said:
That’s what was hilarious. Wordsmithing to say “I use a log pot because it sounds normal to the human ear”
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Here's what ChatGPT says if I prompt it to be a dickhead

"Embrace the transformative potential of logarithmic potentiometers that seamlessly blend technical precision with user experience. While traditionally designed for logarithmic response, our innovative logarithmic potentiometers boast an advanced taper curve technology that can create a linear perception for users. By carefully engineering the resistance profile, our logarithmic potentiometers provide a linear-like feel that enhances usability and control in a wide range of applications. Elevate your product designs with logarithmic potentiometers that challenge conventional expectations and deliver a truly exceptional linear experience."
 
I don't know if I'll be able to find the motivation to trace this thing, but I put it under the microscope to read some IC labels. I saw on their website that they regulate the voltage rail to 8V, looks like their "precision regulator" is just an LE80 LDO, opamps are all TL072, and the bypass switching is done with an HC4066 analog switch.
 
Nostradoomus said:
Here's what ChatGPT says if I prompt it to be a dickhead

"Embrace the transformative potential of logarithmic potentiometers that seamlessly blend technical precision with user experience. While traditionally designed for logarithmic response, our innovative logarithmic potentiometers boast an advanced taper curve technology that can create a linear perception for users. By carefully engineering the resistance profile, our logarithmic potentiometers provide a linear-like feel that enhances usability and control in a wide range of applications. Elevate your product designs with logarithmic potentiometers that challenge conventional expectations and deliver a truly exceptional linear experience."
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Hey, this actually makes the "deep specs" page make a whole lot more sense. They must've just chat-gtped that crap. This is the world we live in now?
 
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