Eventide H9 Max Dimensions and Power Requirements
The Eventide H9 Max measures 4.65 × 5.25 in (118 × 133 mm) and stands 1.97 in (50 mm) tall. Rated 9 V, 500 mA, the figure on its adapter.
Eventide H9 Max specifications
- Width
- 4.65 in (118 mm)
- Depth
- 5.25 in (133 mm)
- Height
- 1.97 in (50 mm)
- Weight
- 700 g (24.7 oz)
- Voltage
- 9 V DC
- Rated current
- 500 mA, the adapter's figure
- Plug polarity
- Center-positive
- Battery
- No battery
- Jacks
- On the top edge
Size and weight: English: 5.25” (H) x 4.65” (W) x 1.96” (D) / Metric: 133 (H) x 118 (W) x 50 (D) mm. Power: 9V DC 500mA, Center positive (+), 5.5mm/2.5mm jack Checked 2026-11-05. The source does not say which side is width and which is depth, so we took them from the shape.
Power for the Eventide H9 Max
The 500 mA is the rating on its adapter, not a measured draw.
We have no measured draw for it. Give it the adapter it came with, or an output rated 500 mA or more at 9 V.
Warning. The Eventide H9 Max is center-positive. Most pedal supplies are center-negative, and plugging it into one can damage it. Use a supply that states a center-positive output.
Will the Eventide H9 Max fit on your board
Width must fit inside the frame. Depth may hang over the front and back by up to 5 mm in total.
| Board | Frame | Fit | Room beside it | BOSS-size pedals beside it, patch cables | Planner |
|---|---|---|---|---|---|
| Pedaltrain Nano+ | 18 × 5 in457 × 127 mm | Fits turned sideways | 324 mm | 3 | Try it |
| RockBoard DUO 2.1 | 18.5 × 5.59 in470 × 142 mm | Fits | 352 mm | 3 | Try it |
| Pedaltrain Metro 16 | 16 × 8 in406 × 203 mm | Fits | 288 mm | 2 | Try it |
| Pedaltrain Metro 20 | 20 × 8 in508 × 203 mm | Fits | 390 mm | 3 | Try it |
| Pedaltrain Metro 24 | 24 × 8 in610 × 203 mm | Fits | 492 mm | 5 | Try it |
| Pedaltrain Classic JR | 18 × 12.5 in457 × 318 mm | Fits | 339 mm | 3 | Try it |
| Pedaltrain Classic 2 | 24 × 12.5 in610 × 318 mm | Fits | 492 mm | 5 | Try it |
| Pedaltrain Novo 24 | 24 × 14.5 in610 × 368 mm | Fits | 492 mm | 5 | Try it |