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Hip Hop

    A Beginners Guide to Hip Hop       Historical breakdown of hip hop (Roots of Hip Hop, Old School Hip Hop, Golden Age Hip Hop, and New School Hip Hop)   The Roots of Hip Hop (B Boy / B Girl era involving true MCing and DJing which was highly influenced by graffiti).  Started in the early 70's with block parties located in New York City. Quote: Rap music emerged from block parties after ultra-competitive DJs isolated percussion breaks, those being the favorites among dancers, and MCs began speaking over the beats. -... read more

Headphone Impedance

  What is Headphone Impedance?   Headphone Impedance is the electrical characteristic of the headphone voice coil and magnetic field coupling of the voice coil & magnet inside the headphone. Impedance is an electrical unit which expresses the combined Resistance, Inductance and Capacitance of the headphone's voice coil. In terms of matching to an amplifier, the headphone impedance is the "Load Impedance". An amplifier drives a headphone with voltage, the current drawn by the headphone is proportional to the headphone's impedance.  As a rule of thumb, the... read more

Foobar2000 A Guide To Set Up

.... Foobar2000 is a media player very popular in the world of Head-fi for good reason. If you’re reading this it is assumed you know more or less what it is. This is meant as a guide to get a functioning and reasonably good looking foobar up and running with minimal fuss. I don’t pretend to know half of what foobar is capable of but I was prompted to look for an up-to-date guide, and I couldn’t find one. The online resource for foobar2000 is at Hydrogen Audio. Any specific problems have probably already been answered there.   This guide is far from finished,... read more

How To Clean The Filters

If it is metal mesh, no tool is going to clean it up. However, there is still one way: Get some pharmacy grade peroxide solution (H2O2 in 3% or 5% solution), pour a little bit in a small container and dip only the metal mesh part of the nozzle in. Let the metal mesh submerges for 3~5 minutes and allow the magic to happen. Dips the metal mesh into water to rinse, then dry it up with tissue (you might need to repeat the whole process several times before all the wax is cleaned). Be sure that the nozzle is always facing down so no liquid will go into the housing. You... read more

Anatomy Of An Earphone

Strain Relief: Molded rubber or other flexible material where the cable connects to the earpiece. Housing: The 'chassis' of the earphone; Where the driver is located along with crossovers and tuning ports (if any.) Filter: Sometimes replaceable (ex. Etymotic earphones); Prevents earwax and other debris from entering the housing and affecting the driver. Nozzle: Neck or tube-like portion on the end of the housing. Rubber, foam, or silicon flanges are attached here. Cable: Typically cloth-sheathed or rubber, connects the 3.5mm jack to the... read more

A Mere Mortals Guide To Why Bose Headphones Suck

Audio newbies are often surprised to find that Bose products are not well-thought-of by more experienced audio experts. Bose's highly competent marketing and high prices lead many average consumers to believe that their products are high-quality. Friction can develop between people who've always heard that Bose products are great, and people who have explained many times what's wrong with them. In-depth enthusiasts who would start a wiki with a title like this see a need to differentiate themselves as enthusiasts. Despite falling for basically the same marketing... read more

Bioeq Rockbox

    BioEQ for Rockbox is a fascinating EQ setup designed with the iRiver H140 originally in mind. The files have been given to me, FLACvest, by HiFlight. I first heard of this EQ from Dr. Xin Xin’s Cool Talk massage boards back in the day when Head-Fi was new and I was trying to figure out what the heck an operational amplifier was. I have since adapted BioEQ to sound good on the Sansa Fuze; I suspect it will do wonders for iPods and other devices.      The key feature of BioEQ is the design of the low shelf; peak filters 1, 2, and 3; high shelf filters, their Q... read more

Information Sonic Differences Between Dt770 Dt990

  Hi All,   This is Zombie_X chiming in here. I have started this large information thread to help those who want a beyerdynamic headphone, but do not know what they sound like and or trying to pick one to suit their set-up. Since I have heard all of the models from 32Ohm-600Ohm's in their current production line, I thought I'd make this thread.   I thought for once and for all I would do something about the abundance of threads regarding sonic differences between all the DT770, DT880, and DT990 models at all impedances. This thread will be the most... read more

Headphones I Own In Order Of Preference

      This is a review of the 20 best headphones I currently own with some added stuff at the end.  I made the choice to review both full-size and IEMs in this comparative review.  I was originally going to make this just a wiki, but as I put more and more effort into it I started to want to share it in the forum.   Very briefly I want to clarify a few things: My home rig is the MSB Platinum DAC iii and the amps I use are the TTVJ Millett 307a as well as the Larocca PRII MKii.  I've had the fortune of also auditioning most of these headphones on the Apex... read more

How To Create Your Own Board By Photo Etching

Fred_Fred asked to see the method I use to make my boards. Here is the technique I use to make them:   First, you need a few basic supplies.     Transparency film Positive resist copper clad board Positive developer solution Exposure light (I built my own)   Not shown: Laser or inkjet printer (pick transparency film compatible with your printer) Plastic trays to develop and etch in One or two pieces of glass of plastic sheet (I use two sheets of glass I cut from an old window)   I also have a couple of optional items that make my life... read more

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