# BHK Pre and Power on the Way - REL Subwoofer Question

**URL:** <https://forum.psaudio.com/t/bhk-pre-and-power-on-the-way-rel-subwoofer-question/3662>\
**Category:** Amplifiers\
**Created:** [January 30, 2017, 5:39pm UTC](https://forum.psaudio.com/t/bhk-pre-and-power-on-the-way-rel-subwoofer-question/3662 "2017-01-30T17:39:46Z")\
**Posts on this page:** 1\
**Showing post:** 143

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**Author:** ![jhsg](https://avatars.discourse-cdn.com/v4/letter/j/54ee81/32.png) [@jhsg](https://forum.psaudio.com/u/jhsg)\
**Post date:** [July 29, 2020, 6:59am UTC](https://forum.psaudio.com/t/bhk-pre-and-power-on-the-way-rel-subwoofer-question/3662/143 "2020-07-29T06:59:42Z")

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Hi everyone,

Just received the ground kit from PS Audio. They were very responsive and i got the kit in my mailbox within a couple of days. Thanks guys!

Unfortunately, it did not work and the hum is still there when I switch the BHK250 to standby.

Also tried running the high level input earth wire to my marantz AVR phono earth and it also didn’t solve the problem.

This is really driving me nuts… ☹

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