Boss SY-1 Synthesizer

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The SY-1 features Boss' legendary synth technology and is filled with 121 ultra-responsive sounds. A BOSS compact pedal that slides easily into any setup. It's as simple to use as a standard stompbox, so you don’t need any background in synth programming to bring a new world of sonic textures to your music.

• Authentic BOSS polyphonic guitar synth in a compact pedal
• No special pickup required—play rich, dynamic synth tones with any guitar or bass
• 121 total sounds (11 types and 11 variations), all ready to play with no programming knowledge needed
• Includes a wide variety of analog-style synth sounds, from leads, basses, and layered organs to sweeping pads and arpeggiated sequences
• Latency-free performance for unrestricted musical expression
• Quickly adjust sounds to taste with Tone/Rate and Depth controls
• Hold function for playing normal guitar over sustained synth voices
• Blend synth and normal guitar sounds with independent level controls
• Parallel send/return loop for easy integration with other pedals on your board
• Mode switch optimizes the synth engine for guitar or bass
• Supports extended control with an external footswitch or expression pedal

Nominal Input Level: INPUT, RETURN: -20 dBu
Input Impedance: INPUT, RETURN: 2.2 M ohms
Nominal Output Level: OUTPUT, SEND: -20 dBu
Output Impedance: OUTPUT, SEND: 1 k ohms
Recommended Load Impedance: 10 k ohms or greater
Bypass: Buffered bypass

Pedal switch
TYPE knob
TONE knob
DEPTH knob

CHECK indicator (Serves also as battery check indicator)

INPUT jack: 1/4-inch phone type
OUTPUT jack: 1/4-inch phone type
SEND jack: 1/4-inch phone type
RETURN jack: 1/4-inch phone type
EXP/CTL jack: Stereo 1/4-inch phone type
DC IN jack

Power Supply:
Alkaline battery (9 V, 6LR61)
AC adaptor (PSA series: sold separately)

Current Draw: 85 mA

Expected battery life under continuous use:
Alkaline: Approx. 3 hours
*These figures will vary depending on the actual conditions of use.

Owner's manual
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
Alkaline battery (9 V, 6LR61)

Width: 2-7/8 inches
Depth: 5-1/8 inches
Height: 2-3/8 inches
Weight: 1 lb