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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ST42 4 Way RCA Audio Switcher, Stereo Audio Switch Selector Box

ST42 4 Way RCA Audio Switcher, Stereo Audio Switch Selector Box

Product ID: 485128473

Details

Brand
SOLUPEAK
Cable Type
RCA
Colour
Black
Compatible Devices
DVD Player
Connector Type
RCA

🔄4 stereo inputs & 2 outputs

🔊Lossless audio switching

🛠️Durable aluminum chassis

VT43744

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate your audio game—switch smarter, sound better!

VERSATILE AUDIO HUB - Manage inputs from DVD, TV, PC, and more, outputting to 2 amplifiers with ease.
PLUG PLAY SIMPLICITY - Passive design means zero power needed—just connect and control instantly.
BUILT TO LAST IMPRESS - Sleek aluminum chassis and knob combine durability with modern aesthetics.
CRYSTAL CLEAR SOUND INTEGRITY - Experience lossless audio switching with premium rotary selector technology.
SEAMLESS MULTI SOURCE CONTROL - Switch effortlessly between 4 stereo audio sources without cable chaos.

The SOLUPEAK ST42 is a compact, passive 4-in/2-out RCA audio switcher designed for professionals and audiophiles who demand seamless multi-source management. Featuring lossless audio switching, a robust aluminum build, and high-quality gold-plated connectors, it eliminates cable swapping hassle while preserving pristine stereo sound across devices like DVD players, TVs, and PCs.

Specifications

ASIN	B094W84SR5
Audio Output Mode	Stereo
Best Sellers Rank	#463,932 in Electronics ( See Top 100 in Electronics ) #311 in Selector Boxes
Brand	SOLUPEAK
Brand Name	SOLUPEAK
Cable Type	RCA
Color	Black
Colour	Black
Compatible Devices	DVD Player, Television
Connector Type	RCA
Connector Type Used on Cable	RCA
Customer Reviews	4.4 out of 5 stars 152 Reviews
Item Dimensions D x W x H	15.2D x 10.2W x 5.1H Centimeters
Item Weight Unit of Measure	500 Grams
Manufacturer	Zhuogang
Manufacturer Part Number	ST42
Model Number	ST42
Number of Ports	4
UPC	710702291452 710702291469

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