Boss DM-101 Delay Machine Pedal

The ultimate analogue delay stompbox! Featuring 12 unique modes, stereo connectivity & advanced modern features including MIDI, tap-tempo & much more!

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stock availability
2 at our Guildford Store
4 at our off-site Warehouse
Want to Click and Collect or try items at our Guildford Store?

The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.

The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.

Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose click and collect as your delivery option online or, during store opening hours, call our sales team at 01483 456777 to place a 10% deposit.

If you have placed your order online, you will receive a confirmation email of your order and a separate follow-up text or email to confirm when your item is ready for collection.

Please do not come to the store before you have received the follow-up message, as your order may not yet be ready at the store.

If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.

Please be aware that, unless you have paid a deposit to reserve the item, it will continue to be free, both online and in-store, for another customer to buy. Therefore we would advise you to place a 10% deposit by either using the on-line click and collect service or calling us 01483 456777.

SKU: DM-101

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Product Description

Rich vintage sound meets modern power with the DM-101 Delay Machine pedal from Boss! Driven by eight BBDs under smart CPU control, this hugely inspiring stompbox delivers 12 unique modes, stereo operation, and a wide array of tonal colours — all while maintaining 100% analogue signal processing throughout. And with 127 user memories, tap-tempo, carry-over, MIDI and much more, the Boss DM-101 brings you the features and versatility of an advanced digital pedal but with the vibrant, characterful sound that's only possible with authentic analogue BBD (bucket-brigade device) circuitry.

Key Features

  • The ultimate analogue delay pedal, realised with advanced Boss technology.
  • Fully-analogue BBD audio circuitry shaped by precision digital CPU control.
  • Produces warm, saturated and highly-musical tones, from vintage to modern.
  • Twelve modes deliver a wide range of mono and stereo delay textures, created using up to eight internal BBDs.
  • Stereo output with flexible signal routing options.
  • Adjustable modulation rate and depth with dedicated knobs.
  • Variation knob for controlling multiple parameters that are unique to each mode.
  • Selectable carry-over for maintaining delay trails when the effect is bypassed.
  • MIDI input and output on mini TRS connectors.
  • Tap-tempo function and tap-division switch for creating rhythmic delays.
  • Four onboard memories, plus the current panel settings.
  • 127 user memories accessible via MIDI program change.
  • Expandable control via external footswitches, an expression pedal, or MIDI.

Analogue Delay for the 21st Century

Analogue delays based around BBD microchips emerged in the 1970s as a compact and cost-effective alternative to the standard tape delays of the era. Their warm, saturated, and highly-musical sound established a distinctive style of delay that remains favoured by many musicians and audio engineers. Leveraging modern CPU control, the DM-101 supercharges this classic effect with enhanced capabilities for today's music-makers.

Taking the analogue delay where it's never gone before, the Boss DM-101 provides access to cleaner sounds and extended delay times alongside traditional tones. To achieve this versatility, Boss used eight 2048-stage BBDs instead of the more common 4096-stage BBD. By finely tuning the behaviour of these smaller BBDs with targeted CPU control, they realised a far greater range of sound while retaining all the desirable analogue characteristics that players love about their favourite BBD stomps!

12 Flexible Delay Modes

  • Classic: Traditional, warm analogue delay sound extended with up to 1200 ms of delay time. Adjust the modulation behaviour by cycling through triangle, sine, and more complex waveform shapes with the Variation knob.
  • Vintage: Retro analogue delay sound inspired by the iconic Boss DM-2 Delay pedal introduced in 1981. Adjust the modulation behaviour by cycling through triangle, sine, and more complex waveform shapes with the Variation knob.
  • Modern: Uniquely-clear analogue delay sound with a distinctive high-end tone and up to 840 ms of delay time. Adjust the modulation behaviour by cycling through triangle, sine, and more complex waveform shapes with the Variation knob.
  • Multi-Head: Emulates a multi-head tape delay while imparting a uniquely-analogue BBD sound character. Use the Variation knob to cycle through 10 different head combinations.
  • Non-Linear: A distinctive effect that produces consecutive short delays (35–190 ms) that gradually increase in volume. The Variation knob allows you to control the delay times after the initial delay.
  • Ambience: Simulates a small space. Change the size and early reflections with the Variation knob.
  • Reflect: A stereo delay sound that produces a reverb-style effect. Adjust the pre-delay with the Variation knob.
  • Doubling + Delay: A stereo effect that combines a doubled sound with a longer delay. Use the Variation knob to balance the two sounds across the stereo output.
  • Wide: A stereo delay with offset left/right delay times for an expansive sound. Use the Variation knob to adjust the delay offset amount.
  • Dual Mod: A stereo delay with different modulation phase settings on the left and right outputs. Use the Variation knob to adjust the phase amount (the phase is fully inverted at the maximum setting).
  • Pan: A tapped stereo delay with different delay times distributed across the sound field. Use the Variation knob to fine-tune the delay time amounts.
  • Pattern: Stereo delay with different rhythmic patterns. Use the Variation knob to choose from the 10 available pattern types.


"They have made in my professional opinion, and I feel like I know delay so well the greatest analogue delay ever made, and you cannot buy anything that even touches this." — Josh Scott, JHS Pedals


  • Memory: 127 + Manual
  • Nominal Input Level: -10 dBu
  • Input Impedance: 1 M ohm
  • Nominal Output Level: -10 dBu (Output A/Mono, Output B)
  • Output Impedance: 1 k ohm (Output A/Mono, Output B)
  • Bypass: Buffered


  • On/Off Switch
  • Memory Switch
  • Tap Switch
  • Mod Rate Knob
  • Mod Depth Knob
  • Variation Knob
  • Mode Knob
  • Delay Time Knob
  • Intensity Knob
  • Delay Volume Knob
  • Memory Button
  • Tap-Division Button


  • Input Jack, Output A/Mono Jack, Output B Jack: 1/4-Inch Phone Type
  • CTL 1, 2/EXP Jack: 1/4-Inch TRS Phone Type
  • MIDI (In, Out) Jacks: Stereo Miniature Phone Type
  • DC In Jack
  • USB Port: USB Micro B-Type (Program Update Only)


  • Power Supply: AC Adaptor (Included)
  • Current Draw: 260 mA

Weight & Dimensions

  • Dimensions (W x D x H): 192 x 133 x 52 (H) mm
  • Weight: 830 g


  • AC Adaptor
  • Owner's Manual
  • Leaflet ("Using the Unit Safely", "Important Notes" and "Information")
  • Rubber Feet (x4)

Options (Sold Separately)

  • Footswitch: FS-5U
  • Dual Footswitch: FS-6, FS-7
  • Expression Pedal: FV-500H, FV-500L, EV-30, Roland EV-5
  • MIDI/TRS Connecting Cable: BMIDI-5-35, BMIDI-1-35, BMIDI-2-35, BCC-1-3535, BCC-2-3535