Connecting 2 Subwoofers to BHK pre-amp

I currently have a Monitor Audio PL215W subwoofer connected to the pre-out RCA jacks of my stereo integrated amplifier. Mated with the PL500 left and right speakers, it makes an awesome combination.

As a result of house move, I will be relocating my BHK Pre and 300 Monoblocks to replace the integrated amp. As the sub does not appear to have high level inputs, I at a loss to understand where the RCA sub cables connect to the BHK pre. I am also looking at getting a 2nd matching sub as the conventional wisdom seems to be that if 1 sub is good, 2 are much better. I know that I can daisy chain the subs but canI connect them both directly to the BHK?
Any advice welcome.

You can run the RCA outs of the BHK pre to the subs and run balanced outs to the amps.

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OK. Thanks @paul172 . In that case I would be daisy chaining the subs together.

Shouldn’t have to, just run the left RCA to one sub and the right to the other and you have stereo subs. Note the RCA is 3 or 6 db lower output than balanced (I forget which) so you’ll have to set your subs accordingly

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This may help:

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Driving one or two high-level with the Jensen transformer above is a much better option in my experience. I was never happy with the integration while feeding my subs with low-level. Moving to high-level direct from the BHK250 is/was a revelation.

It was vastly easier/trivial to blend them with the mains and they completely disappear. Of course, they’re noticed when they are absent.

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There are many ways to do it. I would run the RCA’s off to start without daisy chaining. The Jenson transformers are an option. I use a separate crossover made by JL Audio. Try the easiest most affordable for now. Then change it up if it’s not sound right to you! Enjoy

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Thanks for the link. As I am completely clueless about this subject, I can’t understand how the transformer connection would work. I will have an RCA connection out from the BHK Pre so looking at the Jensen, the in ports are Neutrik connectors. Are you able to spell out the cable and connection sequence? Or are we connecting the monoblocks to the sub?

The sub has RCA inputs and outputs plus LFE inputs in both RCA and XLR

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You can order the Jensen with RCA, Neutrik, and I think XLR. Take a look at their website and you will see the options. Here’s a link.

https://www.jensen-transformers.com/home-theater/audiophile/

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Jensen’s speaker level to line level XLR transformers work great if your subs have XLR inputs. Their RCA version transformer is well liked too. You can find Jensen online instruction manuals to walk you through the process.

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