About This Item
Description
The Hotone Ampero Press SP-30 is the simplest way to add a real volume-and-expression treadle to any Ampero-family processor, with zero power supply and zero extra footprint on your board.
Which Hotone Press pedal is right for you?
| Model | Best for | Wah | Expression pot | Power |
|---|---|---|---|---|
| Soul Press II (SP-20) | Players who want volume, wah, and expression from one passive-footprint pedal | Yes (WARM/CLASSIC + Q) | 10 kΩ | 9V DC or 9V battery, or fully unpowered as an expression pedal |
| Wong Press (SP-21) | Players who want the Cory Wong signature take on the same 3-in-1 platform | Yes (same WARM/CLASSIC + Q) | 10 kΩ | 9V DC or 9V battery, or fully unpowered as an expression pedal |
| Ampero Press (SP-30) | The simplest, cheapest way to add volume and expression to an Ampero-family unit | No | 10 kΩ | None – fully passive |
| Ampero Press 25kΩ Edition (SP-30H) | Hosts that specifically call for a 25 kΩ expression pot, such as Pulze Control | No | 25 kΩ | None – fully passive |
| Ampero II Press (SP-35) | Ampero II Stage owners who also want an independent momentary footswitch | No | 10 kΩ linear | None – fully passive |
| Tuner Press (SP-30T) | Players who want a built-in chromatic tuner in their volume/expression pedal | No | 10 kΩ | 9V DC required (no battery) |
Not sure which one matches your rig? Check the expression-pedal input on your Hotone processor: Ampero Control (EC-4) is rated for a 10 kΩ expression pedal, while Pulze Control (EC-2) is rated up to 25 kΩ – that is the one case where the pot value, not the model name, decides the right pedal.
Why guitarists choose the Ampero Press
- Fully passive design: no battery, no DC jack, nothing to run out of charge mid-set – just plug it in and press.
- Control volume and expression at the same time: the EXP OUT 1/4" TRS jack lets you feed a second device's expression input while the main INPUT/OUTPUT path still carries your volume-controlled signal.
- Hotone's own manuals name it directly: Ampero II Stomp, Ampero Mini, Ampero II, and Ampero Control all document their EXP/CTRL jack as "Perfect for Ampero Press".
- Compact Press-family footprint (16.2 x 8.1 x 5.1 cm) that matches Soul Press II, Wong Press, and Ampero Press 25kΩ Edition, so it drops onto the same pedalboard real estate.
- 100 kΩ volume taper and a 10 kΩ expression taper – the exact value Ampero Control specifies as its maximum-compatible expression pedal.
Controls and switches
- Treadle – the only control; rocks the volume/expression pot through its full sweep.
- No footswitch, no mode switch, no LEDs – a deliberately simple, fully passive control surface.
Power and pedalboard compatibility
None required. Ampero Press has no DC jack and no battery compartment – it is a fully passive pedal with a 100 kΩ volume pot and a 10 kΩ expression pot. Input/output impedance figures are not published for this passive design.
Technical specifications
| Model | Ampero Press (SP-30) |
| Product class | Passive Volume / Expression Pedal |
| Volume pot | 100 kΩ |
| Expression pot | 10 kΩ |
| Power | None – fully passive |
| Jacks | INPUT, OUTPUT, EXP OUT (1/4" TRS) |
| Dimensions | 16.2 x 8.1 x 5.1 cm |
| Weight | 430 g |
FAQ
Which Hotone processors officially support Ampero Press? Ampero II Stomp, Ampero Mini, and Ampero II manuals all document their EXP/CTRL jack as "Perfect for Hotone Ampero Press", and Ampero Control's official guide has a dedicated USE WITH AMPERO PRESS section including a calibration routine.
Does Ampero Press need a power supply? No. It is a fully passive pedal – there is no DC jack and no battery compartment.
Can I use it for both volume and expression at once? Yes. The EXP OUT jack lets you send an independent expression signal to a second device's expression input while the pedal still controls volume through the main signal path.
What is the difference between this and the 25kΩ Edition (SP-30H)? They are mechanically identical passive pedals; the only official difference is the expression pot value – 10 kΩ here versus 25 kΩ on the Edition. Choose based on your host device's rated expression-pedal resistance.
Will this work with Ampero Control? Yes – Ampero Control's expression pedal input is rated for a maximum 10 kΩ pot, which matches Ampero Press exactly.
Is there a footswitch on this pedal? No. Ampero Press is treadle-only with no footswitch or mode switch; for a version with an independent footswitch jack, see Ampero II Press (SP-35).