Where did the term "mono block" originate?

Dang… that’s a nice whorehouse!

From ChatGPT:

The term "mono" comes from the Greek word "monos," meaning "single" or "one." In audio terminology, "mono" is used to describe a single audio channel, as opposed to stereo, which involves two separate channels for left and right audio.

The word "block" in this context refers to a self-contained unit or component. In the case of monoblock amplifiers, they are often designed as compact, single-channel units that can be easily installed or integrated into audio systems.

So, when these two terms are combined, "monoblock" essentially means a self-contained amplifier unit dedicated to powering a single audio channel, typically used in mono audio setups or in multi-channel systems where individual amplifiers are used for each channel to achieve higher power output or more precise control over speaker performance.

Regards,

barts

Fun question @williambf 

and I’ll be curious to hear the definitive answer.

The term mono blocks was probably picked up along the way as someone referred to them as that and it just caught on. Such is language.

All the best,
Nonoise