Will the 2 "out" lines work for "TV headphones" and regular speakers (with no amplification in between)?

You do need an amplifier, unless your speakers and headphones are amplified already.

Does this device allow one to connect, say, 2 different CD players to the amp and switch indifferently between the two, one signal at a time?

Yes. If you read the other questions, the connection is explained. Any 4 RCA sources to one Amp or reversed such as single CD player to 4 different amps.

What is the maximum recommended cable length for the output, since it is passive?

That’s hard to tell. Depends on your cable and your tolerance of signal degradation.

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U31 3 Way RCA Audio Switcher, Stereo Audio Switch Selector Box

U31 3 Way RCA Audio Switcher, Stereo Audio Switch Selector Box

Product ID: 222825463

Details

Brand
SOLUPEAK
Cable Type
RCA
Color
3-WAY RCA IN 1
Compatible Devices
DVD Player
Connector Type
RCA

🔄3-in-1 reversible switch

🔊Lossless audio switching

🛡️Aluminum shielding & gold RCA

€ 104.79

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔄 Elevate your audio game—switch smarter, sound sharper!

PASSIVE POWER FREE OPERATION - No batteries or power needed—pure mechanical switching for reliable, noise-free performance anytime.
ROBUST SHIELDED ALUMINUM BUILD - Durable CNC-machined aluminum casing with full shielding protects your audio from interference and wear.
COMPACT MANAGERIAL DESK READY - Sleek 100x94x40mm footprint fits perfectly in your modern workspace or home entertainment setup.
AUDIOPHILE GRADE SIGNAL INTEGRITY - Gold-plated RCA terminals and PCB-soldered connections ensure zero signal loss and crystal-clear sound.
SEAMLESS 3 IN 1 REVERSIBLE SWITCHING - Effortlessly toggle between 3 audio sources or distribute one source to 3 outputs without cable chaos.

The U31 3 Way RCA Audio Switcher is a premium, reversible 3-in-1 audio selector box designed for professionals who demand seamless switching between multiple RCA audio sources or outputs. Featuring gold-plated connectors, a CNC-machined aluminum shell with shielding, and a lossless rotary switch, it delivers pristine sound quality without power requirements. Compact and durable, it’s the perfect solution to avoid cable swapping and maintain pristine audio integrity in multi-room or multi-device setups.

Specifications

ASIN	B089FX2NRR
Best Sellers Rank	#70 in Audio & Video Selector Boxes
Brand	SOLUPEAK
Cable Type	RCA
Color	3-WAY RCA Switch(3 IN 1 OUT)-Standard version
Compatible Devices	DVD Player
Connector Type Used on Cable	RCA
Customer Reviews	4.3 4.3 out of 5 stars (232)
Item Dimensions D x W x H	3.7"D x 3.94"W x 1.57"H
Item Weight	360 g
Manufacturer	Zhuogang
Mfr Part Number	U31
Model Number	U31
Number of Ports	3
UPC	659438712391 659438712544
Unit Count	1 Count

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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