BHK Preamp RCA out to subs and the XLR outs to amp

Audio Components Preamplifiers
1

Greetings,

I just attempted to use the RCA L & R out from a BHK Pre for LFE inputs into pair of GoldenEar Triton One.R speakers. The XLR output goes to the Amp.

With this configuration I am getting a loud hum from the speakers and no audio. Powering down and removing the cables from the Pre restores audio.

I have read hear on the forum of others successfully using a similar setup.

Thoughts?

Thanks in advance,
Vince

2

I did this for a year with SVS Subs successfully.

3

I have successfully used Dynaudio sub in the same manner, but used sub-in rather than LEF-in. In this case, the sub uses its internal crossover / filters. LEF is intended for amps that have a dedicated LEF output which sends out the low frequencies only.

However, in your case, given the Triton mid and high sections are being fed through the power amp I suspect you have created a short circuit / ground loop of some sort which causes the problem.

Edit: I have to add, you have excellent speakers, congratulations! I hope you sort this one out.

4

I forgot to mention that I added the sub cable yesterday after 4 months of listening without using the RCA out to LFE in. Prior I was letting the One.R’s take care of the subs. I wanted to make the change to hear if there was a difference.

I will play with it more in the morning.

1 Like
5

That’s how I’m using my BHK… XLR to Pass XA60.5 and RCA to a pair of PSA 1500’s (about to add MiniDSP to equalize the subs)

6

What happens if you only plug the RCA to the Tritons? Still hum or do you get woofer movement? I too run a config like this and have no issue at all.