4-way(1-in-4 output) audio splitter, 4 channel can output at the same time, convenient for users to do contrasts among headphone, power amplifier and active speakers etc, each channel with independent volume control, easy to adjust proper volume for different audio devices.
eBay
HA800S Mini Headphone Amplifier 8 Channels Ultra-Compact Stereo Audio Amplifier With Power Adapter Earphone Splitter
Aliexpress UK
2-way amplifier/speaker selector: both working mode (2-IN-1-OUT / 1-IN-2-OUT), with A/B channel toggle switch, convenient to compare the sound quality of 2 pair of different speakers or 2PCS power amplifiers without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets. Strong compatibility for audio device: support doing comparison between different types of amplifiers such as BTL, class A, class B, class D, tube amp etc.. Each channel can pass up to 200W power, also suitable for the comparison between most passive speakers. Purely mechanical passive circuit: no power supply is required, no loss of input and output signals during transmission, and no audio rendering or electromagnetic interference, providing HiFi lossless audio without distortion.
eBay
Nobsound VU102 2(1)-IN-1(2)-OUT Audio Selector Speaker Splitter Amplifier Switcher VU Meter with Remote Control
Aliexpress UK
Item Type: Stereo Audio Splitter Box. 1 x Stereo Audio Splitter Box. GOOD OUTPUT: Adopt for njm4556a high current headphone operational amplifier, the maximum output current is 70ma, which can provide good dynamic high fidelity output.
eBay
Douk Audio TUBE-T5C Stereo Valve Tube Preamplifier Mini 4-Way Audio Splitter Sound Selector Headphone Amp with VU Meter
Aliexpress UK
Connect the power amplifier to amplifier 01-02-03. Proper size with simple appearance, fashionable and durable, very suitable for audiophiles to compare the speakers sound. 1 3-IN-3-OUT Audio Switcher(optional).
eBay
Fosi Audio 240W Mono Amplifier V3 MONO*2 + 48V 10A Power Adapter + Power Filter + Splitter Cable
Aliexpress UK
Features: Audio stereo cable has a single RCA stereo male plug on one end and a pair of left/right RCA male plugs on the other end. Application: Mainly used for DVD, TV, computer and connection of power amplifier, speakers and transmit the audio signal.
eBay
YYTCG RCA Cable HiFi Stereo 3.5mm to 2RCA Audio Cable AUX RCA Jack 3.5 Y Splitter for Amplifiers Audio Home Theater Cable RCA
Aliexpress UK
How to use the RCA splitter cable: Connecting the female RCA connector to an existing RCA cable from TV, CD player, DVD player or other rca-enabled device. Then connect the two Male RCA connectors to the left and right audio ports of a speaker, subwoofer, amplifier, or audio/video (A/V) receiver.
eBay
HIFI dual-channel audio signal switcher RCA high-end audio splitter Power amplifier manual switcher 4-1, 3-3 no need to plug in
Aliexpress UK
This dual RCA Male to 8 Pin male cable allows you to connect an iPhone or iPad to audio devices which are equipped with RCA connections. Each RCA connector boasts a gold-plated anti-corrosion finish for seamless audio transmission and high quality stereo sound.
eBay
1/2/3/5M Subwoofer Y Cable 1 RCA Male To 2 RCA Male Audio Cable RCA To Dual RCA Audio Cable Splitter for TV Amplifier DVD Player
Aliexpress UK
2-way amplifier/speaker selector: both working mode (2-IN-1-OUT / 1-IN-2-OUT), with A/B channel toggle switch, convenient to compare the sound quality of 2 pair of different speakers or 2PCS power amplifiers without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets. Strong compatibility for audio device: support doing comparison between different types of amplifiers such as BTL, class A, class B, class D, tube amp etc.. Each channel can pass up to 200W power, also suitable for the comparison between most passive speakers. Purely mechanical passive circuit: no power supply is required, no loss of input and output signals during transmission, and no audio rendering or electromagnetic interference, providing HiFi lossless audio without distortion.
eBay
Vention Jack 3.5 mm to 2 RCA Cable Female to Male Audio Cable Aux Splitter for Amplifier TV Home Theater 3.5 Jack Aux Cable RCA
Aliexpress UK