HeadRush M104 Analog Delay

The M104 Analog Delay is a stompbox from HeadRush that produces analog delay, an effect type that repeats your signal with the darkening, softening character associated with analog delay circuits. HeadRush states that the pedal's circuit is based on the Moog Moogerfooger MF-104Z Analog Delay, a rack-era design from Moog¹. It sits in HeadRush's line of stompboxes alongside other delay designs such as the HeadRush Reverse Delay, and it belongs to the wider family of delay pedals.

What it does

As an analog delay, the M104 takes the signal from your guitar and produces repeats of it, in the analog delay style rather than the clean, uncolored repeats of a digital delay. HeadRush's own description of the pedal centers on that heritage: the maker presents it as an analog delay whose circuit is based on the Moog Moogerfooger MF-104Z Analog Delay¹. For a player, that lineage is the headline: the Moogerfooger MF-104Z is the design the pedal draws from, and HeadRush names it directly on the product page¹.

Where it sits in the HeadRush range

HeadRush lists the M104 under its Stompboxes category, as a compact single-effect pedal rather than a multi-effects unit¹. Players comparing it within the delay family can also look at the HeadRush Reverse Delay, which covers a different delay effect from the same maker¹.