Caline 9V 500mA Pedal Power Supply - Compact Isolated Unit

In this review the Caline 9V 500mA Pedal Power Supply is evaluated for gigging and home pedalboards that need quiet, reliable power in a very small package. The single biggest reason to buy is its truly isolated outputs combined with a compact footprint that fits tight setups, delivering clean power to multiple pedals while also offering a Type-C outlet for mobile gear. For players who want tidy mounting, short circuit protection and a lightweight unit that keeps noise down, this power supply stands out.

Key Features

• Totally isolated outputs: Each output uses its own transformer, filter capacitor and regulator to minimise interference between pedals for cleaner tone.
• Four 9V 500mA outputs: The unit supplies four separate 9V DC outputs at 500mA each, letting you run several common effects without overloading a single rail.
• Type-C outlet: The included Type-C output can charge phones or power small audio interfaces and wireless guitar systems for greater versatility off the pedalboard.
• Compact and lightweight: At roughly 3.5x2x1.38in and about 100g, it fits on cramped boards and is easy to carry between rehearsals and gigs.
• Short-circuit protection: Each output is protected against short circuits, helping safeguard pedals and the power supply from damage.
• Mounting straps included: The supplied mounting straps simplify attachment and cable management so the board stays organized and space-efficient.

Who It's For

The Caline unit is aimed at guitarists and bassists who build small to medium pedalboards and need clean, independent power for multiple analog and low-draw digital pedals. It works well for acoustic and singer-songwriter rigs where quiet operation and compact size matter.

Players who rely on very high-current pedals, many digital multi-effects, or unusual voltages should look elsewhere, since this supply provides four 9V outputs at 500mA and is not a multi-voltage powerhouse.

Pros & Cons

Pros

• Fully isolated outputs reduce noise and interaction between pedals.
• Compact footprint and light weight make it easy to mount on tight boards.
• Type-C output adds useful flexibility for powering mobile devices and accessories.
• Includes mounting straps and a 4-way daisy chain cable for quick setup.

Cons

• Some users report mixed experiences about isolation on very sensitive rigs, so advanced boards may require testing.
• Limited to 9V outputs at 500mA each, so high-current pedals will need a different supply.

Specifications

Outputs	Four 9V DC outputs at 500mA each
Type-C	One Type-C outlet for charging/powering devices
Isolation	Fully isolated outputs with individual transformer, filter and regulator
Protections	Short-circuit protection on each output
Size	3.5x2x1.38in
Weight	About 100g
Accessories	4-way daisy chain cable and pedal mounting straps included

Our Verdict

The Caline 9V 500mA Pedal Power Supply is a practical, value-oriented option for players who need multiple isolated 9V outputs in a tiny package. It delivers quiet operation, easy mounting and a handy Type-C outlet, making it a good buy for compact pedalboards; those needing higher current or many voltage options should consider a larger supply.

Frequently Asked Questions

Are the outputs truly isolated?
The unit is designed with a transformer, filter capacitor and regulator on each output to provide isolated channels, though some users recommend testing on very sensitive rigs.

Can it power larger digital pedals?
Each output supplies 500mA at 9V, so many common pedals are fine, but high-current digital units may require a dedicated high-current output.

Does it include mounting hardware?
Yes, it ships with pedal mounting straps and a 4-way daisy chain cable to help secure it and connect pedals quickly.