Bass Synthesizer


A Fatter, Funkier Pedal for Bassists

The BOSS SYB-3 was the world’s first bass synthesizer to be packed into a compact pedal, and it found favor with experimentalists and tone aficionados alike. Today, the next-generation bass-synth pedal has arrived: the SYB-5. Utilizing the latest in DSP technology, the SYB-5 faithfully reproduces the classic sound characteristics of analog synthesizers with enhanced punch and power.

Enhanced Sound With the Latest DSP

All of the 11 internal synth sounds have been markedly refined and enhanced to produce a fatter, more cutting sound than ever. The sounds are built on variations of three oscillator Waves (Saw, Square, Pulse) and filters that modulate according to the envelope and LFO changes you apply. You won’t believe how much synth-bass beef can come from such a small pedal.

Enhanced Playability Via External Control

An external pedal input jack has been added to the SYB-5 for connecting an EV-5 Expression Pedal (sold separately), which allows you to control filter cutoff and LFO rate in real time with your foot. In Modes 1−9 you can use the SYB-5’s onboard pedal to hold a note while playing a bass phrase over it. Time for a bass solo? You bet!

Nominal Input Level
-20 dBu
Input Impedance
1 M ohms
Nominal Output Level
-20 dBu
Output Impedance
1 k ohms
Recommended Load Impedance
10 k ohms or greater
Residual Noise
-96 dBu (IHF-A, Typ.); All knobs at center position
Input jack, Output A (MONO) jack, Output B jack, EXP jack, AC adaptor jack (DC 9 V)
Power Supply
DC 9 V: Dry battery / 9 V type (6F22 (carbon), 6LR61 (alkaline)), AC Adaptor (PSA-series: optional)
Current Draw
50 mA (DC 9 V)
Owner’s Manual, Mode Label, Dry battery / 9 V type (6LR61)
AC Adaptor (PSA-series), Expression Pedal (Roland EV-5)
Size and Weight ( incl. battery )
73 mm
2-7/8 inches
129 mm
5-1/8 inches
59 mm
2-3/8 inches
440 kg
1 lbs.
* 0 dBu=0.775 Vrms
*The specifications are subject to change without notice.




If you have questions about operating your BOSS product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by phone or email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.

Owner's Manuals

Support Documents