What ground do i connect to? the 12v ground of my car? or is this for a switched live? does the unit require power in some way?

If you're connecting via a T-harness (most are labeled you connect to the black (usually black) wire (note you only need to connect the earth if you're getting distortion or are using your RCA's as remote turn on

Can i only connect one speaker to this to use on my sub/amp? or shall i connect one speaker twice or can i just use one left side speaker only?

I use this with an amplifier without sub output. Just connect the converter to the speaker output on the amplifier. The output on the converter is a line level output to two phono (RCA) sockets. This works for me because my sub has two line level phono inputs. Some subs have just one phono input and if this is the case then you probably need a splitter like this one https://www.amazon.co.uk/BRIEFCEC-Extension-Cable-Point-Female/dp/B097HJQYL7/ref=sr_1_21?crid=2DL00BG1ECMED&keywords=phono%2Bto%2Btwin%2Bphono&qid=1685451919&sprefix=phono%2Bto%2Btwin%2Bphono%2Caps%2C139&sr=8-21&th=1. Good luck.

Is this suitable for bmw car stereo

Hello,As long as it meets the interface, it can beThanks

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Stereo Audio Speak Signal Hi-Low Converter for Auto Amp Subwoofer Amplifier CD Player High to Low Adapter Audio Filter Audio Filtering Noise Elimination Anti-interference Line Output Converter

Stereo Audio Speak Signal Hi-Low Converter for Auto Amp Subwoofer Amplifier CD Player High to Low Adapter Audio Filter Audio Filtering Noise Elimination Anti-interference Line Output Converter

Product ID: 139135244

Details

Voltage
12 Volts
Manufacturer
BGoodVision
Maximum supply voltage
4.5 Volts
Mounting type
Surface Mount
Brand
BGoodVision

⚡12V Power Efficiency

🔊High to Low Conversion

🔧Easy Installation

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704 som

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate Your Sound Experience!

RELIABLE SUPPORT - 30-day money-back guarantee and lifetime support.
COMPACT DURABLE - Sleek metal design, measuring just 6.4 x 4.3 x 2.5 cm.
AMPLIFIER ACCESSORY - Perfect for aftermarket amplifiers without RCA outputs.
NOISE FREE EXPERIENCE - Eliminates interference for crystal-clear audio.
SEAMLESS COMPATIBILITY - Effortlessly connects to car stereos, laptops, and smartphones.

The BGoodVision Stereo Audio Speak Signal Hi-Low Converter is a compact and efficient solution for converting high audio signals to low RCA signals, ensuring compatibility with various audio devices while eliminating noise interference. With easy installation and robust support, it's the perfect accessory for enhancing your car audio system.

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704 som

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Brand	BGoodVision
Package Dimensions	18.1 x 11.8 x 3.1 cm; 120 g
Item model number	FLT-338-FBA
Manufacturer part number	FLT-338
Voltage	12 Volts
Item Weight	120 g

Stereo Audio Speak Signal Hi-Low Converter for Auto Amp Subwoofer Amplifier CD Player High to Low Adapter Audio Filter Audio Filtering Noise Elimination Anti-interference Line Output Converter

Details

Details

Description

Specifications

Common Questions