Sceadwian
Banned
I have a pair of Sony MDR-XD200 headphones I picked up for 20 bucks new. Sony's website specs list the power handling capability as 1.5 watts IEC. I'd like to build a headphone amp for this as a minor project in high fidelty audio. The coil resistance is 70 ohms so my PC puts out... not very high fidelity sound into them =)
I'm trying to keep it simple, so I'm guessing what I'll want is a pair of monolithic power amps, I think keeping them separate would be a good idea. I want absurdly low THD at it's maximum possible output power so I'm gathering that it'll need about a 200khz bandwidth at that rated power output. These are for my own personal audio experiments so THD needs to be kept to an absolute minimum as the intent is high fidelity audio as well as experimenting with positional audio which will require very low distortion. DC coupling to the headphones is a requirement, and for other experiments I think DC coupling of the input would be a nice option.
I'm guessing a single monolithic amp design may not meet my requirements, I don't mind overbuilding this though and I'm looking for some guideance as to how I should proceed.
I'm trying to keep it simple, so I'm guessing what I'll want is a pair of monolithic power amps, I think keeping them separate would be a good idea. I want absurdly low THD at it's maximum possible output power so I'm gathering that it'll need about a 200khz bandwidth at that rated power output. These are for my own personal audio experiments so THD needs to be kept to an absolute minimum as the intent is high fidelity audio as well as experimenting with positional audio which will require very low distortion. DC coupling to the headphones is a requirement, and for other experiments I think DC coupling of the input would be a nice option.
I'm guessing a single monolithic amp design may not meet my requirements, I don't mind overbuilding this though and I'm looking for some guideance as to how I should proceed.
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