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using a subwoofer with the SE84CKC (Read 2296 times)
nightsky
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using a subwoofer with the SE84CKC
01/17/14 at 21:21:44
 
Hi all,
Is it feasible to connect a powered subwoofer to the Super Zen Triode with speaker wire going from the Super Zen output jacks to the subís high level inputs and more speaker wire going from the subís high level outputs to the main speakers?
I havenít got a Super Zen yet, but have an SVS sub with high level inputs and outputs. For crossovers the sub has a variable low pass filter (40-120Hz) and a fixed high pass filter (100 Hz).
Iím wondering if doing this would degrade the sound quality of the Super Zen, or possibly enhance it with the low frequencies offloaded to the sub.
Any one tried this, or know if itís worth a try?
Thanks,
Michael
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Donnie
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Re: using a subwoofer with the SE84CKC
Reply #1 - 01/17/14 at 22:42:59
 
I just run 2 sets of cables from the speaker leads on my amp. One set to the speakers and one set to my high level inputs on the sub.
I've never tried using the Hi Pass filter on the sub.
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seikosha
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Re: using a subwoofer with the SE84CKC
Reply #2 - 01/18/14 at 02:06:09
 
Does running two sets of wires from the speakers terminals to multiple sets of speakers present any type of funky impedance loads to the amps?
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Donnie
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Re: using a subwoofer with the SE84CKC
Reply #3 - 01/18/14 at 02:31:01
 
My sub is powered. It is just reading the signal, not using any power. I've been running this combo for going on 3 years now with no problem. Torii MKIII , MG944's and some sort of cheap JBL sub I stole from my brother when he wasn't looking.
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nightsky
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Re: using a subwoofer with the SE84CKC
Reply #4 - 01/19/14 at 00:01:13
 
Thanks for the reply Donnie. The way you are using your sub - to fill in the low end beneath your speakers' frequency range - is how I've been doing it using the pre-out on my NAD integrated amp. †

My stand-mounted speakers have a sensitivity of 90 dB with 6 Ohms nominal impedance, which puts them at the low end for using with the Super Zen Triode. Thus the idea of using the powered sub with it and having it handle frequencies up to 100Hz.

Today I've been experimenting with using the high level inputs and outputs on my sub with my NAD. With the high pass filter fixed at 100 dB, I've got the variable low pass set at ~95dB. One thing I'm noticing is it sounds best with a minimal amount of gain on the sub.
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Donnie
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Re: using a subwoofer with the SE84CKC
Reply #5 - 01/19/14 at 00:39:01
 
90 Db speakers? Good luck with that!
I forget that most people don't play music as loud as I do.
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beowulf
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Re: using a subwoofer with the SE84CKC
Reply #6 - 01/20/14 at 07:37:53
 
Donnie, do you have a picture of your cables hooked up like that?  Just trying to picture it in my mind...

Thanks!
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Lin
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Re: using a subwoofer with the SE84CKC
Reply #7 - 01/20/14 at 13:23:50
 
Beowulf,

One pair of wires to the speakers as normal and another pair of wires from the main amp to the speaker level inputs on the sub amp.
The speaker amp will perform as normal because it is only providing the sub amp a signal and is not driving the subwoofer.
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Lin
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Re: using a subwoofer with the SE84CKC
Reply #8 - 01/20/14 at 13:31:38
 
Michael,

The Super Zen will still reproduce the low frequencies with a passive x-o after the amp.
A crossover before the amp is the only way to relieve it of the burden of those frequencies.
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Donnie
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Re: using a subwoofer with the SE84CKC
Reply #9 - 01/20/14 at 14:38:09
 
Here is a picture of my hookup. Later on today I will try to get something a little more detailed.

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Lon
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Re: using a subwoofer with the SE84CKC
Reply #10 - 01/20/14 at 15:38:01
 
Nice picture. Nice cabling. . . but. . . Donnie your amp is very patiently asking for a nice power cord.

:D
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Donnie
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Re: using a subwoofer with the SE84CKC
Reply #11 - 01/20/14 at 16:41:54
 
OK, a few better pictures (I hope).
Yeah Lon, I know, I know. Then the house wiring won't be good enough. On and on it goes.








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Lon
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Re: using a subwoofer with the SE84CKC
Reply #12 - 01/20/14 at 17:00:25
 
You won't think about the house wiring. . . you'll enjoy the improved sound.
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beowulf
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Re: using a subwoofer with the SE84CKC
Reply #13 - 01/21/14 at 04:58:28
 
Thanks Donnie and Lin Cool

Quick question ... I have bare terminated wire from my amp and on my speaker connections as well. †The sub I have in mind only accepts banana jacks though

1. Could I use my bare wire cables as normal for my speakers and amp connections and then use bananas for the sub and amp connections (the same terminals at the same time ~ with the bananas plugged in while at the same time the speaker wires clamped down)?

I never tried it and was just wondering if the banana jacks and bare wires can be used at the same time? Undecided

p.s. Donnie I just love that huge chunk of wood as your amp stand!
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« Last Edit: 01/21/14 at 05:01:34 by beowulf »  
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nightsky
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Re: using a subwoofer with the SE84CKC
Reply #14 - 01/21/14 at 08:56:47
 
Hi Lin. Interesting comment. I was thinking that because the fixed high pass filter on the sub's high level outputs filters out the frequencies below 100Hz that it would make it easier for the Super Zen to drive the main speakers. But it sounds like you are saying that the high pass filter on the sub doesn't have that effect.

It may sound better wired that way (amp -> sub -> main speakers), but if it did, it would be because the sub does a better job than the speakers with the 60-100Hz frequencies, and/or the speakers sound better when only covering the frequencies above 100Hz - not anything to do with easing the load on the amp. (My main speakers go down to 60Hz +-3dB).

That's good to know. Thanks. I'd really like to try a Super Zen but having to buy new speakers (in addition to the cost of the amp) makes me reluctant. I wonder how the Hsu Research HB-1MK2 (92Hz Sensitivity, 8 ohms Impedance) would work with it.
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