Amplifiers & Preamps

How to Choose an Amp Size

By eHow Electronics Editor

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Amps come in all shapes and sizes and they're designed differently for your special needs. There are acoustic amps, bass amps, small bedroom practice amps, combo amps and many more. Take some time to research exactly what kind of amp you need. ... more »

How to hook up a car subwoofer to your computer or home theater system

By desolator144

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Have you taken your subwoofer out for the winter or just have a spare one and want to hook it up to your computer or home theater? Well no problem, it's really simple and surprisingly inexpensive... more »

How to Buy Audio Amplifier Kits

By eHow Electronics Editor

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Audio amplifier kits amplify low-powered audio signals to a level suitable for audio speakers, the final phase of a typical audio chain. This is how a listener can appreciate sound quality. Although an audio amplifier may receive a signal of a ... more »

How to Make a Metal Detector

By petti1108

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Building a metal detector can be quite simple. Many of us have these common household items just sitting around as well. The process should only take about 30 minutes to complete in the following easy steps... more »

How to Fix an Instrument Cable

By eHow Electronics Editor

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If you play an "electric" instrument, you already know about the perils of non-functional instrument chords. There are always ones in a gear case or gig bag that buzz, pop, or just plain don't work, and it's likely somebody has left it sitting ... more »

How to Locate a Microphonic Tube in an Amplifier

By eHow Electronics Editor

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One of the most common failures in vacuum tubes is the development of microphonic properties. This occurs when the tube begins to act as an antenna and introduce stray sounds into the circuit, which is obviously a problem for amplifiers. ... more »

How to Buy a Pre-Amplifier

By eHow Electronics Editor

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A pre-amplifier combined with a separate power amplifier generally provides the best possible sound quality in a stereo system, and the separate components provide a more flexible upgrade path. A pre-amplifier is the most important electronic ... more »

How to Make an Amplifier

By eHow Electronics Editor

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An amplifier's basic purpose is to increase the frequency of the hertz produced by audio waves. There are many different types of amplifiers designed for specific purposes; however, the most common type is the audio amplifier. You can build a ... more »

How to Read an Amp Power Rating

By eHow Electronics Editor

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A power amp—amp is short for amplifier—comes a set of ratings. The series of numbers explains how the machine operates and what to expect. Read the rating to determine the fit of the amp with its use. For instance, a rock band often chooses the ... more »

How to Replace a Speaker in a Bass Amplifier

By eHow Electronics Editor

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Although the typical bass amplifier speaker is larger and more solid than those in guitar amps, they still blow. A bad bass amplifier speaker not only sounds terrible but also runs the risk of damaging the electronics, particularly in a tube bass ... more »

How to Replace a Speaker in a Guitar Amplifier

By eHow Electronics Editor

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When a guitar amplifier speaker blows, not only does it sound bad, but it can also damage the guitar amplifier. Speaker impedance, or load, changes when the amplifier is damaged, and this can change the amount of electricity running through the ... more »

How to Transfer LP Vinyl Records to CD

By MrCHUCK mrchuck999.blogspot.com

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Its easy to transfer your CD's to your IPOD, but moving those old vinyl LP records to MP3 is a little tricky. Read my article and you will be playing those old tunes in no time. You will also want to visit my article: How to Separate Tracks... more »

How to Replace a Speaker in a Speaker Cabinet

By eHow Electronics Editor

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Every speaker cabinet eventually blows a speaker. Whether it stays in a practice room or gets hauled from gig to gig, something will weaken and given out. Not only will the speaker sound bad, but it changes the overall impedance of the speaker ... more »

How to Buy an Integrated Amplifier

By eHow Electronics Editor

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An integrated amplifier, which contains a pre-amplifier and a power amplifier in the same box, provides significantly better sound quality than a receiver but generally not as good quality as a separate pre-amplifier and a power amplifier... more »

How to reset your iPod shuffle

By torque63

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Has you iPod shuffle (1st or 2nd generation) ever locked up and you couldn't get it to work right? I will show you where you can find a utility from Mac to fix this... more »

How to set up a basic DJ Turntable set

By NotInMyBooks

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Just got a DJ set? Well this quick guide will help you set them up to full advantadge.. more »

How to Buy a Power Amplifier

By eHow Electronics Editor

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A power amplifier combined with a separate pre-amplifier generally provides the best possible sound quality in a stereo system, and the separate components provide a flexible upgrade path. .. more »

How to Determine if all Five Speakers Should be Driven by the Same Amplifier Power for a Home Theater System

By eHow Electronics Editor

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When most people purchase a home theater system, they decide to power all surround-sound speakers with the same amplifier. How does it affect the sound quality? More important, is this safe? Some say this could be an electrical hazard if surge ... more »

How to Replace a Tube in an Amplifier

By eHow Electronics Editor

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Replacing vacuum tubes in an amplifier is a relatively easy task. Although a mystique has grown about tubes in recent years, they used to be common items found in drugstores and corner shops. People viewed replacing vacuum tubes in much the same ... more »

How to Troubleshoot a Guitar Amp

By eHow Electronics Editor

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Many guitar amp problems can be solved by simple troubleshooting. Even if the amp cannot be fixed, often once the problem is diagnosed, it can be worked around for the duration of a show. The key is to troubleshoot the amplifier with a specific ... more »

How to Bridge an Amplifier

By eHow Electronics Editor

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There are many reasons to bridge an amplifier, the main one being to get more power to your speakers and produce a better quality sound. Basically, the process lets you combine the power output of two channels into a single channel. This means ... more »

How to Build a Preamp

By eHow Electronics Editor

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Preamplifiers, more commonly known as "preamps," have become fairly simple devices allowing you to add rooms to a Surround Sound system, install peripherals such as microphones and turntables or simply allow you to enhance the sound of an ... more »

How to Clean a Pro Audio Power Amp

By eHow Electronics Editor

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The life of a pro audio power amp can be prolonged extensively with periodic cleaning. Units with fans are particularly vulnerable to collecting dirt and grime internally, especially if the pro audio power amp is used around cigarette smoke. ... more »

How to Connect an Amplifer to a DVD Player for the Best Sound

By Dave Donovan

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DVD players revolutionized the home movie viewing experience when they were introduced to the American public in March of 1997. They offered unsurpassed video clarity, crystal clear audio and the incredible flexibility to control your movie ... more »

How to Connect the Coby DVD-514 Compact 5.1 Channel Progressive Scan DVD Player to a Two-Channel Stereo Amplifier

By eHow Electronics Editor

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Follow these instructions to connect the Coby DVD-514 Compact 5.1 channel progressive scan DVD player to a two-channel stereo amplifier... more »

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