Adding a powered subwoofer?

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Reli

Boomus Fidelis
Anybody have luck hooking up a powered subwoofer to a boombox, via the Line Out jacks? If so, what kind did you use?
 

-GZ-

Member (SA)
Interesting. My two powered subs have it where they can also be hooked up through the speaker wires from say the B speakers on a receiver just to get the signal.. I know a few boomers have it where you can hook up external speakers. Maybe give that a shot too.
 

Reli

Boomus Fidelis
The problem with using the external speaker jacks on a boombox is that most of them will cut the power to the main speakers. Using the line out jacks won't do that.
 

Beosystem10

Member (SA)
The sub that was made for the Technics SAC05L uses its RCA outputs to supply it, the same approach would work with any other box that has line level outputs as single subs tend by default to be active, otherwise you'd need to decouple the inputs to the sub with suitable caps, or use two. I'm trying to fathom out how two could be a bad thing.
 

AE_Stereo

Member (SA)
I have tried connecting a passive subwoofer to my Sharp GF-909 (JDM GF-777).
It is the best and easiest box to connect a subwoofer.

It is a true Bi-amp stereo system. There are separate speaker out terminals for the Main speakers and Subwoofers. In fact left & right subwoofers separately!

The so called sub woofer on the GF-777 is a joke. It makes only mid bass louder (call it muddy)! But connecting it to an external woofer makes it rocking.
 

AE_Stereo

Member (SA)
Just adding my thought, true Line-out terminals give fixed sound signal output, irrespective of the Volume/Tone control levels. So when a woofer is connected to it, it will be at its full volume, not matching with the Volume level of the box. Or there should be a volume control on the woofer and every time it has to be balanced with the Volume level of the boombox.

The subwoofer out of Amps are variable, in proportion to the overall volume & tone controls levels.
 

Reli

Boomus Fidelis
Yeah, I realize that Line Out would supply all frequencies, including highs (which isn't good for a subwoofer). But, I don't really have a choice in the matter. See, my long-term goal is to have a display room for all my boxes, and at least one of them would be hooked to a sub so that the room isn't just full of annoying mids.
 

AE_Stereo

Member (SA)
Reli said:
Yeah, I realize that Line Out would supply all frequencies, including highs (which isn't good for a subwoofer). But, I don't really have a choice in the matter. See, my long-term goal is to have a display room for all my boxes, and at least one of them would be hooked to a sub so that the room isn't just full of annoying mids.
Simple if you have GF-777 or its cousins!

Or for that matter simply connect speaker out from any powerful box to a full size floor standing speaker (like the ones that come with midi systems). You will have sound similar to that from a full fledged receiver.

Kenwood A85.jpg (Photo from net).

Right now I am playing my Akai AJ-505 through this Kenwood speaker (The 4th speaker in this box is actually for surround sound, wired separately!). The sound from the boombox is unbelievable - Room shaking bass with more than enough treble!

Get hold of a good speaker set and you can have a try straight away!
 

Beosystem10

Member (SA)
Screenshot2011-08-02at095757.png
 

blacksnake

Member (SA)
I've got a Pinnacle powered subwoofer connected to the line out of my Lasonic TRC 935. It's my garage radio set up. It's awesome! I can turn down the low end on the Lasonic's EQ, so it can crank LOUD with no distortion, while the sub is pounding out the bass.

I have to control the volume on the subwoofer separately, but its not really an issue as the sub's level sounds good throughout quite a bit of volume range on the radio, so I rarely even touch it.
 
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