I got the Monster Cable Y splitter Sam Mallery suggested:

It cooled the headphone out of the H1 significantly. In casual listening I do not hear the hiss that was so apparent before without it. I have not done critical listening through headphones to hear just how low the the previous hiss now is. But for $3.30 delivered, I'm happy for now.
The price of the splitter has subsequently jumped to $17.65 - bummer.
But it looks like there is a nice black clone from Cables Unlimited for $7.00:

It was close to $15 when I ordered the other one two days ago.
I have the Sescom GH1 attenuator cable ordered. When it gets here after Xmas, I'll do some A/B testing to see if it is of further benefit for GH2 / H1 owners.

It cooled the headphone out of the H1 significantly. In casual listening I do not hear the hiss that was so apparent before without it. I have not done critical listening through headphones to hear just how low the the previous hiss now is. But for $3.30 delivered, I'm happy for now.
The price of the splitter has subsequently jumped to $17.65 - bummer.
But it looks like there is a nice black clone from Cables Unlimited for $7.00:

It was close to $15 when I ordered the other one two days ago.
I have the Sescom GH1 attenuator cable ordered. When it gets here after Xmas, I'll do some A/B testing to see if it is of further benefit for GH2 / H1 owners.


