While the highest cost for large PV projects are the grid connection and labour during the installation, the price of electricity from PV systems at suitable sites can easily compete with conventional power generation. Doing the math, that means a rooftop array of 20 photovoltaic panels with a capacity of five kilowatts will cost around $15,000 […]
A buyer’s guide to power amplifiers
An electronic device that increases (i.e. amplifies) the power of the audio signal to levels suitable for driving speakers. We can now make use of the optimum sound quality that power amplifiers offer without necessarily increasing the number of boxes or the complexity of your setup. There’s also the option of bi-amping, which requires at […]
A buyer’s guide to server rack cabinets
IT wants the server rack or network cabinet to be on time, assembled without problems, and with design that stands the test of time and best practice. These racks make it possible to sit or work beside loud server equipment and still concentrate or speak with co-workers or clients. Above the economy version you can […]
A buyer’s guide to electronic drum sets
Drummers using electronic drums, drum machines, or hybrid acoustic-electric kits (which blend traditional acoustic drums and cymbals with electronic pads) typically use a monitor speaker, keyboard amplifier or even a small PA system to hear the electronic drum sounds. Before we go any further though, check out electronicdrumsetadviser.com for the best electronic drum sets on […]
Guide to buying a metal detector
Larger portable metal detectors are used by archaeologists and treasure hunters to locate metallic items, such as jewelry , coins , bullets , and other various artifacts buried beneath the surface. Metal detectors are useful for finding metal inclusions hidden within objects, or metal objects buried underground. Whether you’re looking for your first hobby metal […]
Guide to car jump starters
Portable jump starters will get your car going without needing another vehicle for a jump, making them a lot more convenient to use than jumper cables. Some portable jump starters require you to attach the jumper cables to the device before starting. But those tests weren’t conducted recently, and one of the things Consumer Reports […]