Overdrive · Tube Screamer family · Boss
Boss SD-1 Super Overdrive
The SD-1 is a buffered-bypass overdrive that has been produced since 1981, featuring asymmetrical clipping and a pronounced midrange character. Guitar World rated it 4.5 out of 5, praising its sturdy construction and ease of use, though noting that excessive gain can introduce fizz and the midrange boost may not suit all players.
- 9V DC · center −
- 5 mA
- Buffered bypass
- Analog
- New
- from $66.35
- Used (asking)
- from $49
The rundown
Highlights
- Runs on 9V DC with 5 mA draw, battery-compatible
- Compact pedal measuring 73 x 130.2 mm
- Buffered bypass switching
- Asymmetrical clipping circuit with midrange emphasis
- Made in Japan by Boss
Best for
Blues and rock players seeking a straightforward overdrive with established reliability and a characteristic midrange-focused drive character.
Professional reviews
What the press rated it. We link to each review; read the full piece for the details.
- Guitar World4.5 / 5Aug 2026Read the review
Quick facts
- Power
- 9V DC
- Current draw
- 5 mA
- Polarity
- Center negative
- Bypass
- Buffered bypass
- Dimensions
- 73 × 130.2 mm
- Status
- In production
Where to buy Boss SD-1 Super Overdrive
$66.35 lowest new price · Reverb
Used listings asking $49–$184.25, median $86 (32 listings). Asking prices, not sold prices.
| Seller | Condition | Price | Link |
|---|---|---|---|
| Reverb | Used | $49 | View |
| Reverb | Used | $50 | View |
| Reverb | Used | $50 | View |
| Reverb | Used | $53.40 | View |
| Reverb | Used | $54.99 | View |
| Reverb | Used | $55 | View |
| Reverb | Used | $55 | View |
| Reverb | Used | $55 | View |
| Reverb | Used | $55.02 | View |
| Reverb | Used | $56.99 | View |
Prices last checked 23 hours ago. Links to sellers are affiliate links.
Frequently asked questions
What power supply does the SD-1 use?
The SD-1 runs on a 9V DC supply with 5 mA current draw and is center-negative, and it is also battery-compatible.
What size is the SD-1?
The SD-1 measures 73 x 130.2 mm.
Does the SD-1 have true bypass?
The SD-1 features buffered bypass rather than true bypass.
Similar pedals
Same type, similar features.