Boss SDE-3 Dual Digital Delay

The genuine sound of the legendary Roland SDE-3000 in a compact pedal with versatile modern features and extended creative range.
The SDE-3 fuses vintage digital character and wide-ranging versatility into one unique and inspiring BOSS compact pedal. Experience the genuine sound and core features of the Roland SDE-3000, an iconic '80s-era rackmount delay favored by some of the most influential guitarists of all time. Flow into any creative setup with a slate of modern features. And twist the powerful Offset control to explore an array of colorful dual-delay textures.

Compact Legend
Introduced in 1983 by BOSS' parent company Roland, the SDE-3000 is revered for its beautifully rich sound and distinctive modulation. The coveted SDE tone was realized through a finely tuned digital engine and the non-linear behaviors of the supporting analog circuitry, including magnetic saturation in the anti-alias filter, evolving modulation produced by the components of the time, and an altered triangle LFO shape. The SDE-3 brings the authentic vibe of this classic delay to a pedalboard-friendly BOSS compact, enhanced with innovative creative features for every musical style.

Vintage Color and Character
Dripping with warmth and musicality, the SDE-3 elevates your tone with endlessly evocative delay sounds. The efficient panel provides the primary controls of its vintage benchmark-including delay time, feedback, and independent rate and depth knobs for the modulation-plus additional knobs that expand your sonic potential. Explore retro single delays and '80s-style mod/delay combos. Or tweak the mod and high-cut controls to conjure moody, atmospheric tonalities for ambient, chill, and lo-fi music.

Offset Magic
Along with reproducing the SDE-3000's famous mono sound, the SDE-3 includes a powerful Offset feature to create interesting tones with two simultaneous delays. With one simple control, you can instantly add a second delay to the primary delay for a wealth of mono and stereo colors.

Doubled Delays-Turning the Offset knob up to its center position introduces a second delay that's 1-100 ms longer than the primary delay. For example, if the primary delay is 400 ms and the Offset is 10 ms, the second delay's time is 410 ms. Coupled with the SDE-3's time, feedback, and highly adjustable modulation controls, you can craft deep delay tones unavailable with typical delay pedals.

Timed Dual Delays-In the second half of its range, the Offset knob produces a shorter second delay that's based on the primary delay time. Use the pedal's tap tempo function to determine the quarter-note value for the primary delay. Next, turn the knob to sweep the second delay's time between eighth-note and dotted-eighth subdivisions. This lets you introduce a variety of rhythmic effects that sync with your music.

Multiple Output Modes
The versatile SDE-3 provides output configurations for any stage or studio scenario. Run it in mono for basic setups. Play in true stereo with discrete left/right delays or a panning mode for ultra-wide sounds that move across the stereo field. Send dry and direct feeds to two amps for wet/dry setups. Or mute the direct sound entirely for studio mixing and parallel effect rigs.

Modern Workflow
The SDE-3 offers numerous control options to enhance your performances. Press and hold the pedal switch to enable the tap tempo function. Or use the TRS MIDI input to receive clock sync signals from DAWs, pedals, and drum machines. Connect external footswitches for on-demand access to tap tempo and a hold function for on-the-fly looping. Alternately, an expression pedal can be used to control the Level, Feedback, and Time knobs for delay mix adjustment, wild pitch effects, and dramatic self-oscillation.

Features

• Unique BOSS circuitry authentically recreates legendary 1980s Roland SDE-3000 Digital Delay effects
• Create immersive stereo effects using Offset to fine-tune the relative time difference between dual delays
• Advanced stereo operation with independent channel and panning modes
• Specify wet/dry signal configuration of both outputs
• Explore SDE-3000-style modulation with dedicated Depth and Rate knobs
• Add warmth and character to delay repeats using Hi Cut filter
• Access tap tempo function with onboard switch
• Connect external footswitch for expanded real-time control
• Adjust multiple parameters simultaneously using an expression pedal
• Carryover On/Off switch for optional effects tail
• MIDI In jack provides MIDI clock tempo synchronization
• Maximum delay time of 1,600ms
• BOSS five-year warranty

Specifications

Sample Rate
- 48 kHz

AD Conversion
- 24 bits + AF method
- AF method (Adaptive Focus method) This is a proprietary method from Roland & BOSS that vastly improves the signal-to-noise (SN) ratio of the AD and DA converters.

DA Conversion
- 32 bits

Nominal Input Level
- INPUT A (MONO), INPUT B: -20 dBu

Maximum Input Level
- INPUT A (MONO), INPUT B: +7 dBu

Input Impedance
- INPUT A (MONO), INPUT B: 1 MΩ

Nominal Output Level
- OUTPUT A (MONO), OUTPUT B: -20 dBu

Maximum Output Level
- OUTPUT A (MONO), OUTPUT B: +7 dBu

Output Impedance
- OUTPUT A (MONO), OUTPUT B: 1 kΩ

Recommended Load Impedance
- OUTPUT A (MONO), OUTPUT B: 10 kΩ or greater

Bypass
- Buffered bypass

Controls
- TIME knob
- FEEDBACK knob
- LEVEL knob
- DEPTH knob
- RATE knob
- HI CUT knob
- OFFSET Knob
- Pedal switch
- CARRYOVER switch

Indicator
- CHECK indicator (Used for indication of Tempo and check battery)

Connectors
- INPUT A (MONO) jack, INPUT B jack, OUTPUT A (MONO) jack, OUTPUT B jack: 1/4-inch phone type
- CTL/EXP jack: 1/4-inch TRS phone type
- DC IN jack
- MIDI IN jack: Stereo miniature phone type

Power Supply
- Alkaline battery (9 V, 6LR61 or 6LF22, commercially available)
- AC adaptor (PSA series: sold separately)

Current Draw
- 75 mA

Expected battery life
- Alkaline: Approx. 4.5 hours

Dimensions
- 73 (W) x 129 (D) x 59 (H) mm
- 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches

Weight (including battery)
- 450 g (1 lbs)

Accessories
- Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
- Dry battery (9 V, 6LR61 or 6LF22)