Wow ! Nice system, I would contact BAT and ask them. My uneducated guess is you might use the second set of main out’s. I assume you would run two subs hence one balanced connection for each sub. I didn’t dig into your owner’s manual but guess they are variable also. And yes specific pictures would help. Regards , Mike B.
CONNECTING A SUB WHEN THERE IS NO SUB-OUT CONNECTION
I’m adding a sub to my system and not sure how to connect it when I have no sub out connection on my preamp. The photos below show the rear panels for my preamp, one of my two mono amps, and the sub. Of course, each speaker is connected to one amp channel.
Is connecting the sub as simple as using a spade-to-banana connector between the amp and the sub?
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Equipment BAT Rex Preamp BAT VK-120 mono blocks (i.e., two VK-60s converted from stereo to mono) and Martin-Logan Dynamo 10 Subwoofer (and, yes, at some point in the near future I plan to add a second sub). I hope this works - Here's a link to rear panels: https://drive.google.com/file/d/127__W75PZ6Nx679IzPJCNQZTmzf6OScG/view?usp=sharing |
Patrick , looking at the back of your sub I’d use the speaker level inputs as mentioned above. You would need to run a pair of cables from the backs of your amps . The only balanced input is LFE but you’re not running a home theater setup. With all due respect you have a fantastic system way above my income bracket and would be well served by adding a pair of subs that match the quality of your system. I’m ASSUMING that you are just experimenting with a sub on hand to see what it sounds like. If that is the case and you are connecting at the speaker level and not from the pre you could probably get away with building a set of cables yourself. Respectfully, Mike B. |
Depending upon subwoofer placement, it may prove easier to just run a jumper from the (+) and (-) terminals of each speaker to the respective speaker-level inputs of the subwoofer. The subwoofer has a high impedance input (e.g. 100k+ ohms), so the current running through the jumpers is tiny. Ideally, the connection could be simplified by using the extra L-R outputs of the BAT Rex preamp to connect the Martin Logan transmitter ($100 USD) that sends a signal to the sub(s) wirelessly. The only hitch is the transmitter has single ended (RCA) inputs only whereas this preamp has only balanced XLR outputs, so appropriate cables would be necessary. |
- 25 posts total