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JeremyErwin · 01-31-2005, 12:14 PM

On the NAD 3020, the normal inputs are steeply filtered (-3db at 13 Hz and 49 kHz), the lab inputs are not. The filters reduced low frequency noise from the turntable, and high frequency EMI/radio noise...
Probably, a similar design was incorporated into the NAD 7600.

01-31-2005, 12:14 PM	#2 of 2
JeremyErwin Member Join Date: Feb 2001 Local Time: 08:28 PM Local Date: 12-03-2008 Posts: 3,298	On the NAD 3020, the normal inputs are steeply filtered (-3db at 13 Hz and 49 kHz), the lab inputs are not. The filters reduced low frequency noise from the turntable, and high frequency EMI/radio noise... Probably, a similar design was incorporated into the NAD 7600.