Reviews Crunch Audio Amplifiers

Douk Audio VU3 Dual Analog VU Meter, 2-Way Amplifier/Speaker Switch, Audio Switcher Box with DB Panel Display

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..

Distribution Block Input: 2GA*1, Outputs: 4GA*2 Wire.
Car audio distribution block, Impact Resistant Snap-on Plastic Cover, made Of High Strength, Nonperishable Industrial-grade Plastic.
High performance amp power distribution block,Low-resistance, high-current ability.
Amplifier Distribution block, suitable for auto car, boat or other vehicles, protect your vehicle's audio's system.
Power distribution block, run up to three 4-Gauge or 8-Gauge wires to your amplifiers. Power Distribution Block, can also be used to combine the ground wires of multiple amplifiers to a single grounding point.

【Ground Loop Isolator】It is designed to help with a humming noise and or engine noise for radio's with no to connect to an amplifier that requires.
【Product Dimensions】Compact sized: cm/ inch.Working Voltage : AC 115/250V, 50/60Hz.
【Easy to install】The ground loop noise isolator is easy to install, plug and play when the wiring is correct, and isolate current noise..
【Scope of Application】Professional power filter for most of DC 12V devices. Effectively resolve the noise problem of audio. Widely used in car amplifiers, active subwoofers,computers, players,recording studios, conference room amplifiers,and other equipment..
【Package Contents】G07 audio noise filter,User Manual, 12-Month Product Replacement Warranty and 24 hour Customers Service..

JOYO High Gain Distortion guitar pedal, get the kind of hard distortion used by the bands you love-from the crunch of AC/DC to the heavy metal of Metallica..
With a full range of EQ adjustment and tone control, from a little blues rock crunch to an all out snarling distortion this is one versatile pedal..
When used with single coils at lower gain settings you’d have to make sure you hadn’t stepped on your vintage overdrive. whole aluminium-alloy housing classic stoving varnish finish, stable and strong, with small LED flash indicator shows the working state..
JOYO is over decade of brand reputation, with the most popular budget pedals, amplifiers, wireless systems, controllers, metronomes, tuners winning the love of global guitarists and inspiring people’s music dreams..
Before playing, please make sure the guitar is fully connected with the pedal. in order to make JOYO pedals work properly and avoiding unexpected noise, we recommend you to purchase an extra JOYO original power adapter, or choose the other reliable brands and make sure it meets the working current requirement of single pedal..

The HD-RLC remotely controls the Bass Level of the following JL Audio amplifiers:HD-Series: All modelsXD-Series: All modelsMHD-Series: All....
When the HD-RLC is connected to the above amplifiers, it acts as an attenuator on the input gain of the amplifier and is used to adjust the overall....
The HD-RLC kit includes the rotary control with a black ABS knob, mounting hardware and one 18 ft. (5.5 m) cable..

The OPA2134 series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications.
Superior Sound Quality, Ultra Low Distortion: 0.00008%, Low Noise: 8 nV/√Hz.
True FET-Input: IB = 5pA, High Speed: Slew Rate: 20 V/µs Bandwidth: 8 MHz.
High Open-Loop Gain: 120 dB (600 Ω), Wide Supply Range: ±2.5 V to ±18 V.
Example Applications: Professional Audio and Music, Line Drivers, Line Receivers, Multimedia Audio, Active Filters, Preamplifiers, Integrators,....

...as a Hi-Fi amplifier with the volume control.
It also supports the phone call function by Bluetooth. When it is contacted to the Bluetooth and If there is a call, you can use the selector button to control this call.
【Wide Application】-- Connect different interfaces to amplifiers, digital to analog audio converter connects different audio interfaces to analog amplifiers, Perfect for home theater, teaching, training structure, conference rooms, appliance stores, and other places.

Power - 600 Watts Max x 2 @2-Ohms 300 Watts Max x 2 @4-Ohms 1200 Watts Max x 1 Bridged @4 Ohms.
Class A/B Topology - Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal.
Full Range - With a Full Range amplifier you not only have the option to run your speakers but also your subwoofers.
Variable Gain Control - The gain control is not for adjusting volume It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier.
Variable Bass Boost - With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s).

Power – 500 Watts Max x 2 @2-Ohms, 250 Watts Max x 2 @4-Ohms, 1000 Watts Max x 1 Bridged @4 Ohms.
Full Range – With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers.
Class A/B Topology – Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal.
Mosfet Power Supply – A MOSFET is an electrical switch that allows the flow of electrical current. It controls the output voltage and current precisely by removing the output current sensing loss & eliminating all secondary feedback circuitry.
Variable Gain Control – The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier.