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

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

BOSS Audio Systems B25N Car Sound Noise Filter, Ground Loop Isolator

BOSS Audio Systems B25N Car Sound Noise Filter, Ground Loop Isolator

Product ID: 3459241

Details

Brand
BOSS Audio
Item dimensions L x W x H
3.38 x 1.5 x
Manufacturer
BOSS Audio
Mounting Type
Surface Mount
Number of Channels
2

🔇Eliminates high-pitched alternator whine

🔌Dual-channel ground loop isolation

⚖️Compact & lightweight design (3.4x1.5x1.5 in, 0.3 lbs)

AR$98534

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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

Secure transaction

Description

🔊 Drive Quiet, Sound Loud – Your Car’s Audio’s Best Friend

PRO GRADE COMPATIBILITY - Optimized for use with high-quality RCA cables and independent amplifier grounding for maximum clarity.
SLEEK COMPACT BUILD FITS ANYWHERE - Small footprint and lightweight design make installation seamless and discreet.
TRUSTED BY THOUSANDS BACKED FOR YEARS - Join over 2,600 satisfied users and enjoy peace of mind with a 3-year warranty.
DUAL CHANNEL ISOLATION FOR PRISTINE AUDIO - Two-channel ground loop isolator ensures interference-free stereo performance.
SILENCE THE NOISE AMPLIFY THE EXPERIENCE - Say goodbye to distracting alternator whine and enjoy crystal-clear sound on every drive.

The BOSS Audio Systems B25N Ground Loop Isolator is a compact, dual-channel noise filter designed to eliminate high-pitched alternator whine and electrical interference in car audio systems. Measuring just 3.4 x 1.5 x 1.5 inches and weighing 0.3 lbs, it ensures clean, crisp sound by isolating ground loops. Compatible with high-quality RCA cables and featuring a 3-year warranty, it’s a trusted solution for audiophiles seeking flawless in-car audio performance.

Specifications

ASIN	B000LP4RMG
Best Sellers Rank	#15 in Car Amplifier Noise Filters
Brand Name	BOSS Audio Systems
Customer Reviews	3.8 3.8 out of 5 stars (2,657)
Global Trade Identification Number	00791489170055
Included Components	BOSS Audio Systems Ground Loop Isolator B25N noise Filter for Car Audio Systems
Item Dimensions	3.38 x 1.5 x 1.5 inches
Item Weight	4 ounces
Manufacturer	BOSS Audio Systems
Material Type	Metal, Plastic
Model	B25N
Mounting Type	Surface Mount
Number of Channels	2
Package Type Name	Standard_packaging
Part Number	B25N
UPC	809187135679 163121368371 809386486756 019372806240 132018222775 804066817783 791489170055 807031767632 115971573498 808112581604 808112397250 978654254783
Unit Count	1 Count
Warranty Description	3 Year Warranty

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

AR$98534

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews