Can this work on a home stereo.

Yes, it works both in car audio and home audio application

Have yamaha rx-750. Rca bose bookshelf speakers. If I place a unit for each speaker wire directly will this stop ground loop hum?

Depends , what I have noticed with my system is the hum has more to do with how your system is wired. To be honest it actually killed some of my bass. Hope this helps.

Are the female connectors the input or output? Or maybe direction doesn't matter?

The female connectors are usually used as the input because the RCA cables are already run from the head unit to the amplifier using a male to male cable. And then you find out there is hum that needs to be eliminated. The female side allows the existing cable to be used by unplugging the RCA cable from the amplifier and plugging into this noise filter and then the noise filter male connectors plug into the amplifier. Electronically it should work with either side as the input because it is a passive filter. But I've never needed to use male connector as the input because I always put the noise filer as close to the amplifier as possible. I don't think either side is labeled as "input" so you should be able to use it with the male connector as the input.

will this work if I'm getting some hissing noise when connecting a digital piano to a stereo receiver?

Well it filtred out ac from Mixer to powered speakers

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RCA Stereo 2 Channel Ground Loop Isolator Signal Noise Filter Suppressor Reducer Alternator for Car Audio Stereo（13600）

Product ID: 365166668

Details

Brand
Conext Link
Cable Type
Composite
Compatible Devices
PC
Connector Type
RCA
Special Feature
Ground Loop

⚡Filters DC current in signal path

🔇Eliminates humming & buzzing

🔗Gold RCA connectors with 28cm cables

19694 Ft

Duties & taxes included

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Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔊 Silence the noise, amplify your drive.

PREMIUM METAL BUILD - Durable cylindrical metal casing with heat shrink tube ensures long-lasting performance.
PLUG PLAY CONVENIENCE - Includes 2 male and 2 female gold-plated RCA connectors with 28cm interconnects for seamless setup.
POWERFUL SIGNAL INTEGRITY - Supports up to 20 Amps and 60 Watts with a wide frequency range of 20-30K Hz for pristine sound.
ENGINEERED FOR PROFESSIONALS - Precision-tuned by expert engineers to elevate your car or home stereo audio experience.
CRYSTAL CLEAR AUDIO ZERO NOISE - Say goodbye to annoying ground loop hum and buzz disrupting your vibe.

The RCA Stereo 2 Channel Ground Loop Isolator by Conext Link is a high-quality audio noise filter designed to eliminate humming and buzzing caused by ground loop issues in car and home stereo systems. Featuring a robust metal casing, gold-plated RCA connectors, and support for up to 20 Amps and 60 Watts, it ensures clean, interference-free sound across a broad frequency range of 20-30K Hz. Engineered for easy installation and professional-grade performance, this isolator transforms your audio setup into a noise-free listening haven.

Specifications

ASIN	B082GV15Y1
Best Sellers Rank	#287,001 in Electronics ( See Top 100 in Electronics ) #16 in Car & Vehicle Noise Filters
Brand Name	Conext Link
Cable Type	Composite
Colour	Gold
Compatible Devices	PC
Compatible Phone Models	No Compatible Phone Models
Connectivity Technology	RCA
Connector Gender	Male-to-Female
Connector Type	RCA
Customer Package Type	Standard Packaging
Customer Reviews	3.9 3.9 out of 5 stars (966)
Frequency	30 KHz
Indoor Outdoor Usage	Outdoor
Item Length	62 Millimetres
Item Shape	Round
Manufacturer	Conext Link
Maximum Current	20 Amps
Maximum Voltage	12 Volts
Model Name	Conext Link AD104
Model Number	AD104
Number Of Pins	2
Number of Items	2
Other Special Features of the Product	Ground Loop Isolation
Outer Material Type	Metal
Part Number	AD104
Recommended Uses For Product	improving audio signal quality in car audio and home stereo systems
Specification Met	No
UPC	713001601861
Unit Count	1 Count
Wattage	60 Watts

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