[jerryjg]

I dont know if they are working properly. The volume is very low through my Furman Signal Processor which has a small headphone amp in it. They are old Koss ESP 6. Did they come with some kind of power supply/ amp? How are the sound of these old Dinosauers?;

[/IMG]

 

[spritzer]

These have built in energizers in the cups so you need a very powerful amp to driver them, preferably an impedance matched (Koss supplied a adapter box for this) speaker amp. Odds are that there are quite a few shorts in cups since the oil based foam Koss used for damping corrodes any and all metal.

 

[wrecked_porsche]

Why is there a hand grenade on the table?

 

[obobskivich]

because its just sitting there chilling with the ESP 6's?

and @ spritzer, I dont have ESP's or anything like that, just curious (and I know you know all sorts of stuff about these kinds of questions), wanna elaborate more on the ESP 6's? (built in energizers, shorts, etc)

 

[sprucemoose]

although they came with a standard 1/4" phone plug, they also came with an adapter to wire them up to the speaker output of an amplifier. the adapter basically consists of a pair of dropping resistors and a switch to shut off the speakers. the alternative is to re-wire your headphone jack on your amp, per Koss' instructions, so you can plug the esp6 directly into the amp.

i picked up a pair of esp6 for 5 bux at a thrift store several months ago, and i just ordered a pair of new ear cushions (also 5 bux, direct from Koss). i keep my esp6 wired through the adapter box to my dynaco stereo-70, and i use the carrying case for my pro4aa. btw, the pro4aa earpads fit the esp6.

 

[sprucemoose]

also see:

http://www.head-fi.org/forums/f4/kos...tatics-234504/