Sub Out Connector

[Joseph1]

In my SONY setup it has a sub-out RCA connector as normally in every DVD player has.

My question is I need to connect a subwoofer for this output.Do I need to use a active subwoofer amplifier (with low pass sub filter) or just an amplifier (without sub filter)?

Its spec is 1V,1Kohm impedance.

 

[Arty]

depends on the model You have.
You may simply connect any amplifier to that output, with a speaker.
If it plays full range, then You need a sub with a filter.
If not, then just grab any amplifyer You like and have a nice day.

 

[Joseph1]

depends on the model You have.
You may simply connect any amplifier to that output, with a speaker.
If it plays full range, then You need a sub with a filter.
If not, then just grab any amplifyer You like and have a nice day.

Ok thanks for the tip. I'l do as you suggest

 

[d1030180]

In my (limited) experience the signal coming from the 'sub-out' connector is lowpassed with a -6dB/octave filter, centered around 120 Hz.

 

[Joseph1]

In my (limited) experience the signal coming from the 'sub-out' connector is lowpassed with a -6dB/octave filter, centered around 120 Hz.

Thanks for confirming.

So all I need to do is take an amplifier without (pre amp) & feed it from the sub out connector but the sub out is a mono output

 

[Arty]

you can split it up to drive a tereo amp, and use 2 subs.

 

[Joseph1]

you can split it up to drive a tereo amp, and use 2 subs.

Ok nice I'll do as you suggest

 

[Arty]

if you are limited in space, you can try an isobaric setup.
Isobaric loudspeaker - Wikipedia, the free encyclopedia
just notice, the speakers should be back to back.
with this setup the cabinet volume would be reduced.
it has other benefits too, and some drawbacks.
like 2 times the amplifier costs and driver costs.
but many non-linear distorsion types will be canceld.

 

[frank1]

Thanks for confirming.

So all I need to do is take an amplifier without (pre amp) & feed it from the sub out connector but the sub out is a mono output

You don't need stereo for a sub. The ear is not sensitive to direction at low frequencies so a mono sub is quite acceptable.
Frank

 

[Arty]

multiple subs help even out room modes.
it is not needed for the stereo effect.
having a stereo amp plugged into a sub out, it would be quite easy to have 2 subs in the room.
if nothing else then at least the 2x cone area would give some advantage.