So...So I went ahead and also purchased the DSL1HR (received it today) and with the same cabinet and power outlet it doesnt have the hiss. It gets to the same level hiss wise only if everything is on max.

Did you order both amps previously, or did the DSL1HR ship in 1 day?
What's the plan with the 20 & scratched up 1936V?
Are you just running the 1w through 1 speaker on the 2x12?
I've had both amps and sold the 1w after I got the 20.
Just curious.
