The JOYO ZGP is a wide-range voltage input power supply filter, specially designed for isolating a power supply's hum and noise to make your pedals sound cleaner and only give you the signal you actually want!  

Benefits of the ZGP

  • Changes the normal daisy chain power supply into a real independent daisy chain output power supply
  • Filter ripple noise from the adapter
  • Max 800mA working current
  • Breaks the ground loop and offers independent output
  • It provides stable 9V output voltage

SPECIFICATIONS:
  • Input voltage: DC9V
  • Output voltage: DC9V
  • MAX Output current: 800mA
  • No load current: 70mA
  • Output polarity: centre minus
  • Packing list: a ZGP, and a DC connecting cable
  • Input polarity: centre minus
  • Output voltage accuracy: 5%
  • Reversed polarity protection: yes
  • Weight: 17g
  • Dimensions: 16*16*63mm.

It is well known that power supply hum and noise are insufferable to guitarists when using a mixture of pedals from different manufacturers. The JOYO ZGP is the cure to regulate power distribution and remove noise..

Hum and noise may come from patch cables, your guitar, a mixture of pedals but the main source for hum and noise for users is a pedal's power supply system, aka PSU power adapter. Currently, a lot of the 9V adapters on the market are not isolated, or even filtered, and their performance is inferior to isolated power supply with regard to cross talk pedal noise.

Adding in a daisy chain, makes for an unregulated power distribution. This noise occurs when several effects pedals are connecting to one power supply, each pedal (especially digital pedals) form a ground loop, which brings the noise from other magnetic fields into the signal path and all the other pedals are affected and become unstable.

In the same instance pedals when connected will form several DC circuits which in turn can interfere with each other. This is most noticeable with high gain pedals. The ZGP is capable of isolating the power supply's hum and noise completely filtering out, even from a normal 9V adapter. So say goodbye to ground loops or ripple noise, these headaches are over when you are use the ZGP.

With the added benefit of isolating the power output, you have the added benefit of protecting your pedals from any power surge.


How to Use :
- Turn off main power, shut down the pedalboard..

- Identify the suspect noisy pedal power input, or pedal (Digital v Analog).

- Connect the JOYO ZGP dc lead into the ZGP

- Connect the JOYO ZGP into to your pedal

- Connect your original power supply into the input of the ZGP

power on !