Why is there some noise when using my pedal power supply?

Noise is usually from external factors: unclean power from shared outlets, nearby WiFi/phone interference, loose cables, or high-gain/digital pedals amplifying small signals. It’s rarely an issue with the power supply itself.

Can my power outlet or wiring cause pedal noise?

Yes. Old, unstable outlets or shared power strips with computers/lights create impure power. Moving pedals while powered can also loosen connections and cause mild current noise.

Does location affect power supply noise (commercial vs residential)?

Commercial areas often have complex 3-phase power, elevators, and servers that cause more ground interference. Residential areas have cleaner single-phase power but may still have minor noise from aging wiring.

Why do some pedals make more noise than others with the same power?

High-gain pedals (distortion/overdrive/fuzz) amplify all signals including noise. Digital pedals (delay/reverb/looper) are sensitive to power quality and more likely to pick up high-frequency interference.

Can cables or nearby devices cause power-related noise?

Yes. Poorly shielded or loose audio cables introduce noise. Phones, WiFi routers, and other adapters placed too close can also create electromagnetic interference with your pedal setup.

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SPS-20 10-Output Pedal Power Supply for 9V/12V/18V Guitar Pedal | 10 Independent DC Outputs, 100mA/500mA

SPS-20 10-Output Pedal Power Supply for 9V/12V/18V Guitar Pedal | 10 Independent DC Outputs, 100mA/500mA

Product ID: 493497958

Details

Brand
STRICH
Color
Black
Connector Type
Barrel
Input Voltage
9 volts
Material
Acrylonitrile

⚡Supports 9V/12V/18V voltages

🔇Built-in noise reduction tech

🔌10 independent DC outputs

R1154

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Description

🎸 Power your pedalboard like a pro—clean, quiet, and unstoppable.

STAY COOL QUIET - Premium aluminum alloy casing with advanced noise filtering keeps your tone pure and your rig cool.
VISUAL PEACE OF MIND - Bright blue LED indicators instantly alert you to any short circuits, so you’re always in control.
VERSATILE VOLTAGE OPTIONS - Supports 9V, 12V, and 18V outputs to power a wide range of pedals and gear with precision.
FAIL SAFE INDEPENDENT CONTROL - If one channel shorts, the rest keep running—guaranteeing uninterrupted performance.
POWER UP EVERY PEDAL EVERY GIG - 10 isolated outputs deliver clean, stable power to all your pedals simultaneously—no compromises.

The STRICH SPS-20 is a professional-grade pedal power supply featuring 10 fully isolated DC outputs with multiple voltage options (9V, 12V, 18V) and current ratings up to 500mA. Its advanced noise reduction technology and durable aluminum alloy build ensure reliable, low-noise power delivery. Designed for serious musicians, it includes fail-safe independent channel control and LED indicators for real-time monitoring, making it an essential hub for any pedalboard setup.

Specifications

ASIN	B0BHHM9TTF
Amperage	500 milliamps
Best Sellers Rank	#5,903 in Musical Instruments ( See Top 100 in Musical Instruments ) #48 in Keyboard Power Supplies
Brand	STRICH
Built-In Media	SPS-20 Guitar Power Supply
Color	Black
Connector Type Used on Cable	Barrel Connector
Customer Reviews	4.3 4.3 out of 5 stars (384)
Enclosure Material	Acrylonitrile Butadiene Styrene (ABS)
Form Factor	Rectangular
Input Voltage	9 volts
Item Dimensions	8 x 3 x 3 inches
Manufacturer	STRICH
Maximum Power	600 watts
Mfr Part Number	SPS
Model Number	SPS-20
Output Current	500 milliamps
Output Voltage	18 volts
Output Wattage	600 watts
Specification Met	UL, FCC, RoHS
UPC	774034315316
Warranty Description	1 Year

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R1154

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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TrustScore 4.5 | 7,300+ reviews

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