Boss DM-101 Delay Machine review – the ultimate analog delay pedal? It’s hard to argue

The Japanese pedal giant is as good as its word with this innovative and musical take on classic analog delay effects

Boss DM-101 Delay Machine
(Image: © Future)

Guitar World Verdict

The DM-101’s true analog delay effects are in a class of their own when it comes to expressiveness and musicality, further enhanced by the power and versatility of its CPU-controlled design.


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    Zero noise but totally faithful analog delay sounds.

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    Huge array of delay types.

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    Plenty of control over your sounds.

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    Caters for the everyday and the experimental.

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    It is expensive, but you get what you pay for.

You can trust Guitar World Our expert reviewers spend hours testing and comparing guitar products so you can choose the best for you. Find out more about how we test.

There’s a certain je ne sais quoi about real analog delay that every guitarist should experience and that even today’s best digital models can’t quite replicate. 

Featuring eight true analog bucket brigade chips, the Boss DM-101 Delay Machine is billed as the “ultimate analog delay pedal,” and after spending a few days bathing in the glory of its lush, expressive analog textures combined with the versatility of its digital CPU control, I’m inclined to agree with Boss’s assessment. 

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Chris Gill

Chris is the co-author of Eruption - Conversations with Eddie Van Halen. He is a 40-year music industry veteran who started at Boardwalk Entertainment (Joan Jett, Night Ranger) and Roland US before becoming a guitar journalist in 1991. He has interviewed more than 600 artists, written more than 1,400 product reviews and contributed to Jeff Beck’s Beck 01: Hot Rods and Rock & Roll and Eric Clapton’s Six String Stories.