Best 4 channel Amplifiers

Monoprice SSVC-4.1 Single Input 4-Channel Speaker Selector with Volume Control, Impedance Protection, Individual Zone On/Off Buttons, Black, Model Number: 138159

Connect and safely control multiple speaker pairs with a single amplifier. Automatic impedance protection circuitry..
100 watts/channel continuous power handling capacity, 200 watts/channel peak. 5-ohm minimum amplifier impedance with four 4-ohm speakers selected, 6-ohm minimum with 8-ohm speakers..
Individual zone on/off buttons and volume controls..
Heavy-duty screw-type connectors supporting 12-18 AWG speaker wire..
Isolated left/right circuit grounds provide safe connection for amplifiers with floating grounds or bridged configurations. Accurate, noise-free switching..

Designed for amplifiers delivering 10 to 200 watts per channel (front) and 10 to 100 watts per channel (rear).
Cubes measure - 6.25H x 3W x 4D (each) and AcoustiMass Module is 14H x 22W x 7.5D.

Target voltage: 8-16 volts 350x2 at 4 ohm 175x4 at 2 ohm 125x4 at 4 ohm 3Ch mode: 350x1 at 4 ohm + 175x2 at 2 ohm or 125x2 at 4 ohm.
Perfect for motorcycles, ATV, Marine and mobile applications small footprint with a low profile ipx-4/5 weather-resistant design.
Full range class D unregulated power supply aux RCA output (to link to additional amplifiers).
Die cast endcaps with removable mounting feet volume control with mute function (rear channels only).

Allows the addition of 2 or 4 channel amplifiers to most stereos without RCA outputs.
Allows the addition of amplifier and subwoofer to existing factory systems.
Adjustable level matching from 0 to 2 volts.

This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic....
Item is a CABLE MODEM ROUTER and great for Cable Internet plans up to 300Mbps.
Up to 1750Mbps Wi-Fi speeds with simultaneous 2.4GHz (up to 450Mbps) and 5GHz (up to 1300Mbps) bands.
Class-leading up to 680Mbps DOCSIS 3.0 cable download speeds, 16x faster than DOCSIS 2.0.
Channel bonding of up to 16 downstream and 4 upstream channels. Six internal antennas and high-powered amplifiers boost signal strength and reduce....

EASY USE AND COMFORTABLE FEATURE: Banglijian is a professional hearing aid manufacturer and seller, which have produced a variety of hearing aids. Our....
RECHARGEABLE FEATURE: Our hearing aid runs with high quality lithium battery, which saves your trouble to buy button batteries frequently. It can be....
FULLY UPGRADE: 4 channels signal processing, with 4 independent compression-amplification channels, the received sound is divided into different,....
GIFT DESIGN: Our rechargeable hearing amplifiers are offered with exquisite packaging and complete accessories. We provide one unit, two types of....
PERFECT AFTER-SALES SERVICE: Our rechargeable hearing aids are offered with exquisite packaging and complete accessories. If there is any problem, you....

As a VU meter, with dual 60*35mm large meter, can dynamically decorate audio environment and provide incomparably visual effects when switching audio signals..
As an audio switcher, easily to switch between two amplifiers and 2 pair of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets..
Powerful design and strong compatibility: all channels adopt fully isolation design, each channel’s GND is independent without mutual interference. Supports all kinds of amplifier such as BTL / class A / class B / class D digital amplifier / tube amplifier etc..
Easy Use & Perfect Details: Powered by micro-USB 5V, with built-in protection load for speakers. With remote control, can quickly set the working status from distance. All settings can be saved after shutdown, more convenient to use..
Proper size with exquisite appearance: cool black case, warm VU meter and clear indicators looks vintage and dynamic, can perfectly match with a variety of usage scenarios, very suitable for audiophiles who have more than one amplifiers or speakers..