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Subwoofer Causing Amp to Stay On

I have an Audio Note Kit 1 300b SET Amplifier driving a pair of very efficent full range drivers. My entire system is plugged into a psaudio p5 regenerator, which plugs into a synergistic research orange duplex(floating ground). I recently added a pair of Klipsch C-310ASWi subwoofers(ungrounded) into my system via hilevel input, connected from my speakers binding posts. I’ve noticed that now that the subwoofers have been added, when I shut my entire system down, my speakers remain on with a slight hiss or static sound. The hiss will stop, and the speakers will turn off, if I unplug the power cord from the Audio Note, or unplug the subwoofers. I was not having this problem before the subs. So obviously they are the culprit. Anyone know what’s going on here? Old school style amp not liking the newer type amplifier inline? What are my options other than go wireless? Should I go wireless(subwoofer has built in option)? I also get slight transformer buzz from time to time from the psaudio p5, and now that my speakers wont shut up when off, it gets expelled through drivers and amplified into the room.
akwilson501

Showing 1 response by amg56

amg56's avatar
amg56
887 posts
 
Reading the OP’s initial post, the subs are connected to the speakers binding posts. Therefore, even when the amp is off, there is a current being initiated from the subs to the speakers.
The subs speaker cable need to be disconnected from the speakers and plugged into the amp LFE outputs. Or use the wireless option. I had a pair of REL subs and used their wireless option quite effectively. Plus I could place them in the room more effectively.

Anyway back to the issue, you are getting signal feed from the subs, which are
still powered in standby and “still listening” for the signal to take them from standby to ON. Your main speakers are playing the sub signal.

No huge problem, but don’t connect the subs to the speaker posts.

AG 🇦🇺




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