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AUDIO FORUMS >> General Discussion and Support >> Connecting Torii MkIII to powered subwoofer?
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Message started by astro-chris on 12/02/16 at 13:34:57

Title: Connecting Torii MkIII to powered subwoofer?
Post by astro-chris on 12/02/16 at 13:34:57

Hi everyone,
I purchased a Torii MkIII from "marcocolo" on this forum about a year ago and am just delighted and awestruck with the sound I am getting. I currently have a stereo pair of 12" subs that I used in combination with my main speakers (GMA Eos HD) with my prior solid state amp, running "speaker-level" connections to the main speakers and to the plate amps of the subs, as per Roy's (owner of GMA) advice, as he said this would allow for better integration with my main speakers. The Torii I bought had the second set of RCA inputs modified, as per Steve's instructions, to be used as subwoofer "line-level" outputs. Is there any reason I could not try running speaker-level outputs from the Torii's binding posts to my subs' plate amps, i.e., is there something about the Torii's design that requires the use of the "after-market" line-level RCA outputs to attach powered subwoofers?
Thanks so much,
Chris

Title: Re: Connecting Torii MkIII to powered subwoofer?
Post by mark58 on 12/02/16 at 14:37:34

I have an Omega Sub and the recommended method was speaker level connection to my Torii MK IV....works great. Mark.

Title: Re: Connecting Torii MkIII to powered subwoofer?
Post by flargosa on 12/02/16 at 14:57:36

Would there be degradation in audio quality using this method? Now the speaker level outputs is driving both the subwoofer amplifier and speakers at the same time. The subwoofer probably sucks just a tiny bit of power from the tube amps but wouldn't that be enough to negatively impact sound quality?

Title: Re: Connecting Torii MkIII to powered subwoofer?
Post by mark58 on 12/02/16 at 15:06:33

I don't think so but someone more knowledgeable on the technical side should answer. I haven't tried any other hook up method.

PS...almost everything I read said the speaker level was preferred and is best for integration with your main speakers.

Title: Re: Connecting Torii MkIII to powered subwoofer?
Post by Lonely Raven on 12/02/16 at 15:31:38

I thought the same thing - I *assumed* that using the RCA would be better sounding because it's closer to the source. But even Steve/Decware recommends speaker level outs. I really can't discern any degradation of sound quality going speaker level. It does integrate better as far as I've seen, and if you have a plate amp or power amp with a built in crossover, then it's pretty much built for this.

If you have both options, it can't hurt to try both and see what works best for *you*. Go for it and see how it sounds - you won't hurt the amp - so trust your ears!

P.S. I'm going to be doing something similar soon myself. I have a giant 21" subwoofer (that's the speaker size, not the box size!) backed up by a 2000 watt budget PA power amp I'd love to integrate with my MG944 off my Decware ZMA. I love my MG944, but I miss having a full bottom end, and the big woofer can go down to 10Hz hardly breaking a sweat.

Title: Re: Connecting Torii MkIII to powered subwoofer?
Post by Matchstikman on 12/02/16 at 15:48:19

I connect both the sub and loudspeakers to the speaker level outputs. In fact, my blue Torii has two sets of outputs so that I don't have to cram to sets of cables to the same output connector. This was the best way I could integrate both sets of speakers.

Title: Re: Connecting Torii MkIII to powered subwoofer?
Post by astro-chris on 12/02/16 at 16:15:17

Thanks everyone, for all the helpful replies! I just wanted to be sure I wouldn't hurt anything by using the speaker-level off the Torii, as this is my first tube amp :-)
I'll give it a try and see which way sounds better.
Thanks again,
Chris