Sure they are better quality and more sophisticated that john's era but on the joseph's power supply i think you pay more for the cable!   The psu i had is the 3rd of this post :http://www.head-fi.org/t/647205/grado-hpa-1-gs1000i/30#post_12300630

No it has a "brick" power supply! It has smooth regulation but made an annoying external noise. I would only look for buying the Joseph Grado psu only cause i'm curius what's inside.

Its 5771,the 46 is the match number the plate and chassis, not so early product but again the production of the PH-1 was not so. I think alittle more than 10000 units and then it was obsolete for some reason. I used to own an PH1 for sometime but I sold it cause built a replica with "battery"...

PH-1 production started at 1999. you can check the serial number of your preamp. Did you got it brand new?

This is actually a HPA-1/2 AC adapter!! The only changed the plug to make it fit on the PH-1!!   Anyway as I said that's the main concept behind it . I never tried but I do believe if there any noise this will distort the audio signal abit!

Audio signals (ac) are actually converted power signals (dc) so if we suppose that the JGS cable has very clear conductors and is well shielded, the main power that delivers is clear so then your audio signal will be clear! Its a main philosophy behind it but its true!   btw can you post a...

Its a Dutch store! I got mine after asking help from a dutch friend! If you are really willing to buy them my friend can help you I think!

Liar..!!.. there are NOT porno pics!! My HPA-2 has its covers on and sitting on its own place!

Here they are! In the meantime i was listening lps with my modified Grado Platinum!            

I prefer the Flats instead the L or S , they're more comfortable and they give me the feeling that the sound is more "flat" (closer to the HP1000)!   I'm looking for a "backup" pair so if you're willing to let them go just ket me know :-)

Thanks! Actually I was abit more Lucky cause I built my system in less than month! While I was making a deal for my HP-2, I became a deal for the HPA-2! When both arrived I realize that "something" is missing. A week later the cable arrived! I'll post some pics tomorrow !   I use Batteries...

Yes its a nice quality cable to me, i'm not a cable expert but I bought it more to complete my Joseph Grado Signature system (cable ,HPA-2, HP-2)!

  Happy to sse that! I heard about these phones sometime ago and looked if i can find a pair but i couldn't :-(

Yes it is! I recently got mine (2m) from that store.

  ...too bad :-(