Topic: HDSP 9632 Hiss
Hi, I have an HDSP 9632 with a AO4S expansion board. I have them connected using XLR cables to a power amp as part of a 5.1 home cinema set-up.
On all channels I'm getting hiss on the tweeters. I've been looking at replacing the cards with a processor but when I started investigating I learned that there might be a "fix".
The hiss changes volume when I change the gain settings in the Hammerfall settings. It gets louder with +4 and louder again with +10 settings. I have the XLR breakout box checked.
Should this noise be present? Is it just the usual noise floor of a PC that I'm hearing?
Would a modified card fix the issue? Is there any way to tell if the card has been modified already (I read something about green dots)? If the serial number of corrected cards is logged I can provide that.
Lastly, is an HDSPe quieter than an HDSP? I've no reason to think it would be, I just want to ask.
Any other suggestions would be welcomed.
Thanks in advance