JOYO JP-912 9V Guitar Pedal Power Supply, 1.2A, 5-Way Daisy Chain

Key points

The five-way daisy chain lets the JOYO JP-912 power up to five pedals from one 9V DC adapter, helping keep a pedalboard’s power setup organized. Its 1.2A output and center-negative polarity suit most 9V center-negative guitar and bass pedals with a 5.5 x 2.1 mm barrel connection.

The adapter includes a noise-reduction circuit and a short polarity-converter cable for center-positive pedals. Buyers praise its functionality and compatibility, though feedback on noise is mixed, the circuit is designed to reduce noise, not promise a silent signal.

Getting the most from it

For a board built around analog effects such as distortion, overdrive, or EQ, the daisy chain offers a straightforward way to power several compatible pedals together. Connect the adapter to power first, then connect pedals one at a time. Check each pedal’s voltage, polarity, connector, and current needs before connecting it.

Digital effects—including delay, reverb, loopers, and multi-effects units—can draw a higher burst of current at startup. The product guidance recommends keeping the combined current below 80% of the adapter’s rating and using a dedicated supply for digital pedals when possible. That distinction helps when choosing between a shared chain for a mostly analog board and separate power for digital gear.

The included short reverse-polarity cable converts for center-positive pedals, it is not a standalone cable for powering a standard center-negative pedal. For compatible center-negative pedals, use the daisy-chain cable directly.

Who it’s for

This supply is suited to guitarists and bassists who want one adapter to serve several compatible pedals rather than arrange a separate adapter for each effect. Its 100–240V AC input and 9V DC output make it useful for a range of setups, while the five-way chain helps connect a small group of effects around a board.

It’s a great fit if your pedals use 9V center-negative power and their combined current draw stays within the adapter’s capacity. The included polarity converter also gives owners of a center-positive pedal an option, provided that pedal’s other power requirements match.

Questions before you buy

How many pedals can the daisy chain power? It is designed to power up to five pedals at once. Each pedal must be compatible with the adapter’s 9V output and the total current available, digital pedals may need extra startup current.

What does the short polarity cable do? It converts polarity for a center-positive pedal. It does not power a standard center-negative pedal by itself, use the daisy-chain cable for those pedals.

Can I use it with digital effects? The product guidance says digital pedals can draw two to three times their usual current briefly when starting. Connect pedals one at a time, keep the total current below 80% of the adapter’s rating, and consider a dedicated supply for digital pedals.

When it makes sense

Choose the JP-912 when a compact board needs a shared power source for several compatible 9V pedals, particularly analog effects. The five-way chain, 1.2A output, and polarity-converter cable give you practical ways to arrange power across a mixed pedal collection while keeping each pedal’s power requirements in view.