Detail 01
Tremolo, not vibrato
It modulates volume up and down. Pitch stays fixed. Vibrato pedals bend pitch instead, and the two are often confused.
Product detailSKU #1274034492370
BOSSTR-2 Tremolo Effects Pedal
dynamicsurfrockpsychedelicbluespop
Independent shopping perspective
The Korena take
BOSS's compact tremolo, currently discounted. Amplitude modulation with rate and depth control for players who want the effect independent of their amp.
Strong match
Who this is for
- Surf and psychedelic parts that need steady chop
- Amps with no built-in tremolo
- Slow, subtle pulse under clean arpeggios
Consider the trade-offs
When to look elsewhere
- Players wanting tempo-synced or tap-controlled speed
- Anyone after pitch vibrato rather than volume pulse
- Boards already covered by a good amp tremolo circuit
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Standard BOSS compact enclosure, 2.87 x 5.08 inches
Drops into an existing BOSS-sized board slot without redoing your layout or power routing.
Detail 03
0.88 lb
The lightest of BOSS's compacts by a hair. Metal chassis, so it survives being stomped on stage.
Detail 04
Rate and depth as separate controls
You set speed and intensity independently, so a fast shallow shimmer and a slow hard chop are both reachable.
Detail 05
Placed after gain in most chains
Tremolo before distortion gets flattened by compression. After it, the volume pulse actually reads.
Final check
Know before you order
- 01No power supply included; budget for a 9V adapter
- 02Tremolo speed is set by knob, so it will drift from the drummer unless you reset it
- 03Deep settings drop your average volume, so expect to compensate with level elsewhere
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What is the difference between tremolo and vibrato?
Tremolo changes volume in a repeating pulse. Vibrato changes pitch. Many amps label their tremolo circuit vibrato, which is where the confusion started.
02Can I tap in the tempo?
No. Rate is set with a knob. If you need the pulse locked to a click or a drummer, you want a tap-tempo tremolo instead.
03Where should it go in my signal chain?
Generally after your gain pedals and before delay and reverb. Running it into distortion squashes the effect.
04Does it work on bass or keys?
It processes any instrument-level signal, so yes. It is voiced and sold for guitar, but tremolo is not frequency-specific.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Bridge Type
- Tremolo
2 detailsSize & weight
- Dimensions Wxhxd
- 2.87 inch x 2.32 inch x 5.08 inch
- Weight
- 0.88
