Headphone Amps


I know absolutely nothing about headphone amps. Where do I start? What are the typical models that people begin with? Is there something specific I should be looking for? Is there a recognized standard in headphone amps? The best? The most affordable? The best buy? Thanks all.
tbadder
I use a tubed headphone amp made by Antique Sound Labs called the MG Head. It is a VERY popular little amp. The company that sells them is Divergent Technologies, www.divertech.com . Also if you would like to find more info headphone equipment in gerneral, visit www.head-fi.org or www.headwize.com .I personally use the ASL MG Head and a pair of Sennheiser HD600's. They're an awesome combination. I hope this info helps. Zach
One of the best online retailers of headphone amps is Headroom, at http://www.headphone.com .

Headphone amps come in all types: SS, tube, cheap, expensive. Common starters include the META47, the aforementioned MG Head (said to be really excellent value for the price, if you like tubes), and the lower end Headroom amps (SS). As with speakers, matching amp to headphone is important, in terms of sound quality and also impedance (not all amps are capable of driving low impedance headphones).

When you are ready to move up to something a little better, consider the EarMax Pro--tube amp, can drive many kinds of phones including most low impedance phones.
I second the Headroom recommendation, after first owning a Cosmic, and now the Maxed Out Home Reference. I have friends that are into tube electronics who boutght and the MOHR, and don't miss anything about it. It is smooth, acurate with solid bass. It is 97% of the MAX. I use mine at work with a CD-3400 and Theata DAC. You won't be sorry and for $1100 the amp is a satisfier. The MAX is nice but bang for the buck is the MOHR with Etymotic ER-4S or Sennheiser HD600's. Happy listening!!!!!!
I preferred the Musical Fidelity X-Cans v.2 to the ASL MG Head DT powering the HD600's. There are plenty of archived threads on this topic you should check out for more.