Thanks everybody for the kind words.
I spend most of my time sitting on a desk designing and building audio units and reading that the quality of my work is appreciated motivates me like nothing else.
Keeping the quality high is sometimes difficult as the "dark side" (cutting corners, buying cheaper materials...) is strong

. Fortunately, my customers supported me in the idea the quality is a crucial factor in the signal path.
I’ll try to answer all the questions that have been asked. I’ll probably forget something. If I do please ask again
/// Thumpinator vs micro-Thumpinator
The audio processing is exactly the same – same circuit with the same parts.
The main difference is that the Thumpinator has balanced driver on the output and a balanced receiver on the input.
In practical terms,
unless you need to connect the unit to a balanced line I suggest you buy a micro-Thumpinator.
Apart from the fact that the micro-Thumpinator costs less, it also has less electronics in the signal path which means that (at least in theory) it is has better specs.
/// micro-Thumpinator position in the signal path
In my opinion, the best place to put is just after the bass, especially if it is a passive bass.
The micro-Thumpinator is also an excellent buffer and it helps in strengthen the signal if it goes in a series of pedals. Moreover, the sooner the subsonic content is removed the better it is.
Having said that, some of my customers found that it works best between other pedals or between preamplifier and amplifier. The micro-Thumpinator can work at line level so you can put it in the send/return of you amp.
This is why I suggest my customers to try it in different positions in the signal chain.
/// Low-B
The Thumpinator has been designed to be used with a 5 string bass and it does not interfere with the low-B.
If you detune you bass to go below the low-B
and you have an amplifier and cabinet that are able to reproduce the note you are playing, the micro-Thumpinator will remove the fundamental from the signal.
So far nobody ask me to do it but, if you are strictly a 4 string player, it is possible to tune the micro-Thumpinator to cut everything below the low-E.
If someone is interested please contact me via email. I’ll do the mod free of charge to the first person that asks as I am interested to see the result. /// What does the micro-Thumpinator do?
It removes the subsonic content. In other words that you cannot hear but you amp and speakers work to deliver.
It doesn’t simply attenuates or mitigate the effect of subsonic content. It removes it completely.
I hope the above helps. If you have more questions, please ask.
Max [sfx]