[nauqneyugn]

Well my Shure E5s came today and initial impressions are very good (my previous cans were Ety ER4s). The Shures fit my preferences very well. Anyways they are being amped from my PPA (powered by an Elpac)...and it hisses like no other. Straight from my source (which is a modded Audigy2, don't be hating), the Shures are dead quiet. Is there anything that can be done to eliminate the hiss?

 

[kyrie]

It's most likely the Elpac. Tangent has a nice PPA/PIMETA power supply in the making called TEPS (Tangent's Easy Power Supply). There are a few threads in the DIY forum about it. You might want to contact Tangent to ask for details.

 

[xtreme4099]

mine is dead quiet .... ive heard them with ety's and nothing .... make sure its grounded correctly ... but then i have blackgates an the whole bit ... so dunno ... so many ppa's manufacturers out there ... and everyone has their own way of building it.

 

[nauqneyugn]

Mine is totally silent with Etys.

 

[EyEPoD]

Swap in some different op amps.

 

[nauqneyugn]

I've gone back and forth between AD8610s and OPA637/627s and the hiss is still present.

 

[raif]

its the elpac. I went through a lot of trouble to discover this. Or you need to turn down the gain.

 

[cmascatello]

Don't rule out the ridiculous sensitivity of the e5s. I get a slight hiss from my Shure's when connected to my XP-7 with any source (iPod, iHP-120, computer, etc.). My e5s are also silent when coming directly from the source.

If it means anything, the XP-7 is running off 9Vs and not a 120V source.

 

[eric343]

E5s will hiss like nothing else if you're not careful. Swap out the power supply first, make sure the amp is well shielded, the gain is down, you're using good shielded interconnects, etc.

But above all use a quiet power supply!