Will 3.5mm to rca splitter work with 2 home subwoofers? creative x7 sound card has 3.5mm sub out and each sub has single rca in.

I think so as long as the RCA female and male fit what you're imputing. Some RCAs are 1/8"/3.5mm and and others are 1/4"/6.35mm.

can this work in reverse--converting a 2-prong airplane headset to a one prong set, so not splitting, but fusing?

Yes, this works both directions.

can this work in reverse--converting a 2-prong airplane headset to a one prong set, so not splitting, but fusing?

No, it won't. RCA mono is not compatible with 1/8" mono. For that use you'll need to get an adapter with "female" stereo 1/8" to dual "male" mono 1/8". You will then plug the two mono plugs into the airplane outlet and then plug your own headset, earbuds, or headphones into the stereo side of the adapter. In my experience, most airline audio is now compatible with standard stereo plugs so they don't have to bother with their own custom headphones. Noise cancelling headphones are so commonly used, it doesn't make sense for them to try to stick with the older custom interface. Also, most noise cancelling headphones come with the stereo to dual-mono adapter in the box. Bose certainly does (I have a couple of them).

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ANDTOBO 3.5 mm TRS to Dual RCA F (2-Pack), 3.5mm Stereo Male to Dual RCA Female Audio Breakout Adapter

Product ID: 510503216

Details

Colour
Black
Compatible devices
Headphone
Connector type
3.5 mm
Item dimensions L x W x H
25 x 45 x 10
Specific uses for product
Speaker

🎧3.5mm stereo male connector

🔊Dual RCA female ports for seamless audio split

🛡️Gold-plated connectors for corrosion resistance

72.37 DT

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Description

🎶 Elevate your sound game—connect like a pro, listen like a legend!

DUAL PACK CONVENIENCE - Two adapters in one package mean you’re always ready to upgrade your audio experience or share with a friend.
ERGONOMIC GRIP DESIGN - Textured grip treads ensure quick, hassle-free plugging and unplugging—perfect for on-the-go setups.
PLUG PLAY SIMPLICITY - Effortlessly connect your smartphone or MP3 player to any RCA-enabled sound system—no tech skills needed.
COLOR CODED FOR CLARITY - Easy-to-identify RCA ports eliminate guesswork, making your audio connections faster and foolproof.
PREMIUM AUDIO INTEGRITY - Gold-plated connectors minimize signal loss and resist corrosion, delivering crisp, clear stereo sound every time.

The ANDTOBO 3.5 mm TRS to Dual RCA Female Audio Breakout Adapter (2-Pack) offers a reliable, gold-plated connection to link your smartphone, MP3 player, or headphones with RCA-enabled speakers or AV receivers. Designed for easy plug-and-play use with ergonomic grips and color-coded ends, this adapter ensures minimal signal loss and superior stereo sound quality in a compact, durable matte finish.

Specifications

ASIN	B07DPK9Q94
Best Sellers Rank	9,464 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 171 in RCA Cables
Brand Name	ANDTOBO
Colour	Black
Compatible Devices	Headphone, Music Player, Smartphone
Connector Type	3.5 mm stereo/RCA
Country of Origin	China
Current Rating	1 Amps
Customer Reviews	4.5 4.5 out of 5 stars (984)
Item Dimensions	25 x 45 x 10 millimetres
Item Weight	0.01 Kilograms
Manufacturer	ANDTOBO
Manufacturer Part Number	4348259379
Model Number	4348259379
Number of Items	2
Number of Ports	2
Package Quantity	1
Power Plug Type	No Plug
Product Finish Type	Matte
Specific Uses For Product	Speaker
UPC	606860995717
Unit Count	1.0 count
Warranty Type	Limited

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72.37 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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