RCA Connector for Subwoofer with Regular Speaker Wire Connections?

Question

I have an Olevia 237V LCD HDTV that has an RCA jack (female) OUTPUT for a Subwoofer. Do I need to buy a powered subwoofer, or can I use the non-powered sub that I have from my former surround sound system? That subwoofer has the typical two-wire connection on it for the twisted and tipped wires. On the other end of that speaker wire, I want to put an RCA male plug on it, so that I can plug it into the jack on the tv.

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Answer 1

Even if the TV has a subwoofer output - I would not use it.

You want a AV Receiver that hooks to your CATV box/Sat receiver, etc.  It will take the line-level signals and power speakers which can also power that sub.

The receiver ... does a LOT of things to help the subwoofer blend with the other speakers.  And that TV should have a digital output which carries 6 speakers worth of sound.  Just adding a sub does not really give you all the sound that is possible.

Look into an AV receiver, or a Home Theater in a Box from Dennon or Yamaha.  This will give you a complete system (with a self-powered sub) for $500- $900 depending on the model.

Answer 2

I would recomend a powered sub but only with a good home theater system to boot. At a minimum you will need some form of amplifier, but overall a Home theater would be the way to go.

Several systems are out there that use 2.1 or 5.1 or 7.1 speakers and any of these would be a vast improvement over the quality of sound that you have. I would ask you to relay your expectations and the proper product recoemendation would be forthcomming. Right now it is a question of exactly what do YOU want?

I submit some reading material for you.

Answer 3

The subwoofer out on your television is definitely designed for use with active (powered) subwoofer systems.

The wire connections are for passive subwoofers and require an amplifier to drive it, either with a dedicated subwoofer amp or connecting the subwoofer between the stereo fronts and the amplifier.

Answer 4

You'll have to buy a powered sub. No doubt about it.

The signal your TV is sending out is line-level -- nowhere near powerful enough to drive a speaker, let alone a subwoofer.

So pick up a powered sub, and you'll be all set.