The current pedals (ODR-1 from 2020 with Bass Cut/ ODR-1 30th Anniversary / ODR-1 Ltd and ODR-mini) can be operated with a DC voltage of 9-18 volts.

Older ODR-1 without bass cut switch only from 9-12 volts DC.
Always pay attention to the polarity and voltage!

A higher operating voltage allows the sound to have a little more headroom and thus a little more transparency. This is of course a matter of taste and not always desirable. Even a very low voltage (dying battery) is sometimes appealing. Here you get almost sounds like a FUZZ.

Many popular overdrives used a simple adjustable filter for the high frequencies. It was called “Tone” or “Treble” and really just reduced the high frequencies added by the overdrive electronics. Of course, this greatly limits the variety of sounds and possibilities.

After much sound testing, Kai Tachibana developed what was then, and we still believe, the unique double filter control called “Spectrum”. Not only the usual highs are raised or lowered, but also the lower mids/bass (~300 Hz). In the 12 o’clock position the sound is almost neutral. Turning the control counter-clockwise minimizes the treble and bass. Raised clockwise.

This allows a variety of EQ settings with just one knob.

What is the Spectrum control? 1

Spectrum curve

The ODR-mini a little bit tighter than is big brother and have a different frequency range in the bass.
But the DNA is the same and the basic sound very close.
You will find some demos at our YouTube cannel.
Nobels YouTube Channel – click here

A true bypass was often requested for the ODR Overdrive and we have implemented this wish in the ODR-mini.

A true bypass pedal allows the tone and signal of your guitar to flow through unaffected when the pedal is off. This means that all the tone of your guitar is preserved – the pedal does not colour it at all when it’s not being used.

However, due to the fact the true bypass pedal does nothing to boost or enhance the signal, the more pedals you have and the longer the signal cable from board to Amp/Instrument (over 18.5ft), the more degradation and tone loss will occur. This is great for tone snobs and those who use smaller length cables.

It all has its pros and cons.

It’s also a question of manufacturing costs. A buffered bypass is significantly more expensive in terms of effort.

A buffered pedal strengthens your tone and drives it through the chain, restoring the signal and tone to what it should be. A buffer does this at all times, whether the pedal is on or off. If you are using longer cables over 18.5ft on both sides of the pedal i.e. guitar to pedal to amp, then a buffered pedal will preserve the signal and push it to the amp. Imagine it as someone cheering you on. You have the tone, but there’s something supporting it and helping you get there safely. Some guitarists will argue that a buffered pedal will add too much high end, when in reality it provides a far more pronounced and responsive signal.
It’s also often a philosophical question, and everything has its pros and cons.

Many years ago we decided on a socket provider that is sealed, which means it is a bit stiff at first, but does not wear out.

With daily use, the bushings become smoother.

In all these years we haven’t had any problems anchoring the sockets on the circuit board.

So no worries!