Sound bar build

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#23
A separate preamp. It would split the audio signal so the low frequencies go to the sub and the high frequencies go to the other speakers.
If it needs its own power supply, the transformer you have will work.
You'll have to find one for sale or DIY.
 
#28
As I said before, you could hook up the speaker bar and listen to it while working on the subwoofer. Don't get too discouraged.

I'm confused. Back in post 15 it says: Subwoofer 50W RMS into 4 ohms.
 
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#30
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As you can see from the pics I think it's a 50watt 8 ohm speaker and the stats on the website are fake it's badly printed on the speaker but it looking an 8


Sent from my iPhone using Tapatalk
 
#34
Ok cool I guess I'll deal with that when I build the subwoofer , for now ill concentrate on the sound bar so would you recommend I get the 6x100 amp with the power supply and start building the sound bar, also I see the enclosure size is also an important thing or does it not really matter when dealing with such small speakers ?
 
#35
As far as enclosure size goes, it is an important thing. In this case, though, there is no real data to allow that kind of optimization, and just building a sealed enclosure large enough for those drivers will get you most of the way there. That's how I understand it, from my limited knowledge of loudspeaker design.
As for recommendations, the amp has been settled I suppose, but I am still unclear on the power supply you'll be using.
 
#36
I should include:
On many recordings, the low frequencies are common to both channels. So you could use the passive crossover you linked for the sub, with just one channel connected.
The downside is it might work better with 50 Cent's 'The Candy Shop' than The Beatles' 'I Saw Her Standing There'.
 
#37
ok so this is the final setup i think would work best

8 x 10w 8 ohm speakers
4 x 5w 8 ohm Tweeters

lay out as below

OoO | OoO | Amp\PSU | OoO | OoO |

the Amp i think will work best is this one:

Sure Electronics 6x100W TDA7498 Class-D Amplifier Board

The Power supply is this one :

Sure Electronics 24 VDC 14.6A 350W Regulated Switching Power Supply

please let me know if the above setup is compatible

then later i would like to upgrade the speakers to the below ones

Dayton Audio ND91-4 3-1/2" Aluminum Cone Full-Range Driver 4 Ohm
 
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