How distorted with sub line in or speaker output


I thought about adding a sub, to my integrated amp...Thought about getting a sub and connecting the amp through the speaker line ins and then run speaker cables out to the speaker. The advisor at a store told me that the best way of connecting a powered sub would be to do it First and foremost through an RCA line in from a preout, Second through a speaker line in. He said that the sound was going to be fine, but not excellent if I chose to do it through the speaker line in.
The integrated I have is a 47 Labs Shigaraki integrated, which is known to provide an extremely pristine quality power output. The sub in question was a Infinity Intermezzo 2.1? The one with a 1000 watt class D Bash amp.
Any opinions, I would like to hear from.
bemopti123

Showing 1 response by mhu

Hi, I'm currently using an Audio Physics Luna sub with the Merlins and I have tried both ways in my system. I have found the integration to be better running parallel as opposed to rca inputs. For one thing, volume control will integrate more seamlessly, meaning you don't have to manually adjust the sub volume control everytime you change volume for your main speakers. Another thing, and this is more important, is what Hifidreams have already mentioned, you want the sub signal to travel at the same rate as your main speakers. Otherwise, you're going to have a heck of a time with the timing and positioning of the sub. I spent months trying to fix this problem with rca connection to no avail, and finally gave in to using the speaker line.