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Still a bit confused as to which output I should use from the E9 when connecting to a set of desktop speakers (Logitech, powered)...
Please correct me if I am wrong here.
From what I have read in this thread, when speakers are connected via tha RCA Line Out, volume control is still retained by the speakers. This type of connection double-amps the signal.
When speakers are connected via the 3.5mm Pre_Output, volume control is shifted to the E9. In this type of connection, the E9 acts as an amplifier for the speakers.
I am still deciding whether I want to retain volume control on the speakers themselves or if I want to utilize the E9's knob as the master volume control.
My question is, which type of connection gives the cleanest sound to the speakers?
Safety concerns: Is there any danger of connecting active/powered speakers to the RCA Line Out?
The RCA output is line-level with no amplification. The above poster is incorrect. No double amplification is being performed using the RCA output.
Using the 3.5mm preout will double amplify, and degrade the signal quality.
There are very few reasons to preamp, such as not getting enough volume/gain from active speakers own volume control, or in the case of passive speakers that do not have their own volume control. So in almost all cases, the RCA output is the ideal connection for active speakers, which will deliver the best possible signal quality, and yes it is safe.