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
HIFI Lossless 2 IN 1 OUT Audio Switcher Amplifier Speaker Switch Converter Switch Splitter Selector Box for Hifi Audio
Aliexpress UK
VU102 amplifier / speaker selector: two working modes (2-IN-1-OUT / 1-IN-2-OUT), with A/B channel switch button, 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. Euipped with VU meter and remote control: a 72*32mm large vu meter, can dynamically decorate audio environment and provide incomparably visual effects when enjoy HIFI music. Remote control makes everything convenient, all settings can be quickly adjusted from distance.
eBay
Bi-Directional Audio Switcher 2 Way 3.5mm HiFi Stereo Audio Switcher Splitter 2 In 1 Out/1 In 2 Out for PC Headphones Speaker
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
Bi-Directional Audio Switcher 4 Way 3.5mm Stereo Audio Switch 4 In 1 Out / 4 In 1 Out with Mute Button for PC Headphones Speaker
Aliexpress UK
Model: VU3Pro. Amplifier type supported: all kinds of types (BTL/Class A/Class B/Class D digital amp/tube amp). Amplifier no-load protection: support. MIC pick-up: support. 1 USB Cable(type-c). through power of each channel supported (in acutal).
eBay
Bi-Directional Audio Switcher RCA Audio Adapter with Mute Button 2 in 1 out/1 in 2 out RCA Stereo Audio Switch for Speaker
Aliexpress UK
2-way amplifier/speaker selector: Both working modes (2-IN-1-OUT / 1-IN-2-OUT), with A/B channel select button, convenient to compare the sound quality of 2 pairs 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 devices: Support doing comparisons 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. User-friendly design for easy use: Designed with remote control to operate from the distance; add LED display screen and channel indicators, much clearer to show the working status in real time.
eBay
VU3 Pro Amplifier/Speaker Selector: The fully upgraded version of VU3, with great improvements in size, functions and performance. 2-IN-2-OUT (Two groups of speaker jacks support output at the same time), flexible to switch and make a comparison between 2 amplifiers and 2 pairs of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets. Max. 350W Power Transmission and Super Compatibility: With the growing popularity of high-power amplifiers, the power requirements for switchers have also increased. With a maximum pass-through of 350W, the VU3Pro supports various types of high-power digital and tube amplifiers (BTL, Class A, Class B, Class AB, Class D, etc.), including 300W TPA3255 amps and floorstanding speakers. .
eBay
VU3 Pro Amplifier/Speaker Selector: The fully upgraded version of VU3, with great improvements in size, functions and performance. 2-IN-2-OUT (Two groups of speaker jacks support output at the same time), flexible to switch and make a comparison between 2 amplifiers and 2 pairs of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets. Max. 350W Power Transmission and Super Compatibility: With the growing popularity of high-power amplifiers, the power requirements for switchers have also increased. With a maximum pass-through of 350W, the VU3Pro supports various types of high-power digital and tube amplifiers (BTL, Class A, Class B, Class AB, Class D, etc.), including 300W TPA3255 amps and floorstanding speakers. .
eBay
SPRODIO 2 PORT 3.5mm Stereo Audio Switch Box AUX headphone Speaker Manual selector switcher Use 6A toggle switch (2 in 1 out / 1 in 2 out) -T21. 2 IN 1 OUT: Connect with two audio sources (example: computer and TV), then connect with one output (example: speaker).
eBay