can someone explane to me what this does as if i were a complete idiot?

The ground isolator removes ground noise caused by other components in the power system of your audio devices, it does this by decoupling the amplifier from the audio source directly, wires wrapped around in a transformer allow the audio signal to pass through induction but leave the ground isolated. So any noise on the ground line is not sent to the audio input of the amplifier.

Can I insert this filter between my power amp and preamp in my home audio system to fix the hum problem?

Your hum problem is likely between your preamp and one of its inputs. Disconnect each in turn to see which is the problem. Use this there. It breaks the earth loop. If you put it between the pre and power amp, the hum is already in the audio signal, so it would not be effective at that point.

Will this eliminate the buzz between my record player and receiver?

You can usually eliminate hum between your record player and your phono stage input by grounding the two devices together with a dedicated wire, usually built-in to the record player, which attaches to a stud on the phono preamp or stereo. Hope this helps.

Will this work for a CB radio?

sure, it filters out noise from the power wire

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BOSS Audio Systems B65N High Level to RCA Converter Noise Filter for Car Audio Systems

BOSS Audio Systems B65N High Level to RCA Converter Noise Filter for Car Audio Systems

Product ID: 273173017

Details

Brand
BOSS Audio
Interface type
RCA
Mounting type
Cable Mount
Number of channels
2
Number of pins
5

🔇Noise filtering for clear sound

🔊High-level to RCA conversion

🎚️Input sensitivity adjustment

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Description

🎧 Elevate your ride’s sound game—hear every detail, skip the noise!

NOISE FREE LISTENING - Advanced noise filter ensures crisp, interference-free audio on every drive.
COMPACT LIGHTWEIGHT - Sleek 3.4 x 1.5 x 1.5 inch design fits discreetly in any vehicle setup without adding bulk.
SEAMLESS AUDIO UPGRADE - Convert high-level speaker outputs to RCA inputs effortlessly for premium sound clarity.
CUSTOMIZABLE SENSITIVITY - Fine-tune input sensitivity to match your car audio system perfectly, eliminating distortion.
PLUG PLAY INSTALLATION - Simple wiring with just 2 wires per channel—get your upgraded sound system running in minutes.

The BOSS Audio Systems B65N is a compact, high-level to RCA impedance converter with adjustable input sensitivity and built-in noise filtering, designed to enhance car audio systems by delivering clear, distortion-free sound. Lightweight and easy to install, it’s perfect for upgrading factory setups with professional-grade audio clarity.

Specifications

ASIN	B000LP4RMQ
Audio Output Mode	Line Level
Best Sellers Rank	#10,003 in Electronics ( See Top 100 in Electronics ) #7 in Car Amplifier Noise Filters
Brand Name	BOSS Audio Systems
Compatible Devices	Amplifiers, Headphone
Customer Reviews	4.3 4.3 out of 5 stars (1,667)
Global Trade Identification Number	00791489170062
Included Components	User Manual
Interface	RCA
Item Dimensions L x W	8.6L x 3.8W centimeters
Item Type Name	BOSS Audio Systems B65N High Level to RCA Converter Noise Filter for Car Audio Systems
Item Weight	0.25 Pounds
Manufacturer	BOSS Audio Systems
Material Type	Plastic
Model	B65N
Mounting Type	Cable Mount
Number of Channels	2
Number of Pins	5
Part Number	B65N
Smart Home Compatibility	Not Smart Home Compatible
UPC	115971572439 613815587897 791489170062 872182707028 172304208281 100010960445 829429302348 132018191132
Unit Count	1 Count

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฿2595

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In stock

Sold byAmazon ThailandDelivered 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 Thailand.

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