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Adding Subwoofer to a Stereo Receiver

post #1 of 20
Thread Starter 
How do you add a powered subwoofer to a stereo receiver?

My powered subwoofer only has inputs (both high and low level) but no outputs.
post #2 of 20
Thread Starter 
Is it not doable?
post #3 of 20
Quote:
Originally Posted by Subjga View Post

Is it not doable?

Post the brand and model number
post #4 of 20
^^^^
of the sub and receiver...
post #5 of 20
Some receivers without subwoofer out can be used with speaker wire from the receiver and wire from the speakers to the subwoofer. Maybe that could be a option if the subwoofer can do that.
post #6 of 20
Thread Starter 
Quote:
Originally Posted by keyboardcat View Post

Some receivers without subwoofer out can be used with speaker wire from the receiver and wire from the speakers to the subwoofer. Maybe that could be a option if the subwoofer can do that.

The subwoofer only has inputs (RCA low level, and high-level speaker wire) but no outs.
post #7 of 20
Yep. Many Subwoofers have High Level Inputs where you run the Speaker Cable from the Receiver to the Subwoofer and then to the Speaker. The Subwoofer handles the Crossover Setting, Phase, etc.. This is as opposed to the Low Level Input/LFE Input where the AVR handles the Bass Management aside from Phase on the whole.
post #8 of 20
Thread Starter 
Quote:
Originally Posted by afrogt View Post

^^^^
of the sub and receiver...

Sub is Audiosource PSW 112, or possibly DIY sub with Bash300 amp (have not decided which). Both only have inputs (no speaker outs).

Receiver is not picked yet.
Sherwood 4105 or Onkyo 8255.
post #9 of 20
Thread Starter 
Quote:
Originally Posted by Audiodork View Post

Yep. Many Subwoofers have High Level Inputs where you run the Speaker Cable from the Receiver to the Subwoofer and then to the Speaker. The Subwoofer handles the Crossover Setting, Phase, etc.. This is as opposed to the Low Level Input/LFE Input where the AVR handles the Bass Management aside from Phase on the whole.

Are you saying you stick two wires into each output from the receiver, and run one to the sub, and one to the speaker? Would this be a 'parallel' connection?
post #10 of 20
From the Subwoofer's Owners Manual
"Speaker Level Input
Use when line level outputs are unavailable from your receiver, pre-amp or
power amp. Your existing stereo speakers can share these terminals, allowing
you to add bass to any stereo or home theater system. Always maintain
speaker polarity by connecting positive (+) and negative (-) terminals on
this unit with corresponding terminals on your existing speakers and source.
Do not use if Line Level Inputs are connected"

Pretty sparse OM. but yes you connect 2 Speaker Cables per Terminal.
post #11 of 20
Quote:
Originally Posted by Subjga View Post

Sub is Audiosource PSW 112, or possibly DIY sub with Bash300 amp (have not decided which). Both only have inputs (no speaker outs).

Receiver is not picked yet.
Sherwood 4105 or Onkyo 8255.

I suggest you get the Sherwood RX4503 which has an RCA subwoofer output. I bought 1 several months ago to play my old LP's and I like it very much. If you also play the LP's like I do, you will need to get an external phono preamp for it because it does not have a built-in phono preamp.
post #12 of 20
Quote:
Originally Posted by Subjga View Post

Sub is Audiosource PSW 112, or possibly DIY sub with Bash300 amp (have not decided which). Both only have inputs (no speaker outs).

Receiver is not picked yet.
Sherwood 4105 or Onkyo 8255.

Okay so I just looked up the manual for the Audiosource you were thinking of picking up. You want a reciever with a subwoofer output, then rub a subwoofer cable from the reciever to the left RCA input on the back of the sub. You can always get a cable splitter(like I did), and plug the subwoofer cable into the Y-Adapter and plug the ends into both the left and right RCA inputs. This will give you any bass you desire without having to use your speaker wires from the reciever to the sub and back to the speakers for your bass. You should be able to find a stereo reciever that has a sub pre-out for a decent price.
post #13 of 20
http://www.parts-express.com/pe/show...number=181-690
Something like this would do the job.
post #14 of 20
Thread Starter 
Thanks guys. Favoring the sherwood 4503 since it has sub-out, maybe it'll cross-over in the receiver and filter out the bass from the bookshelf speakers.
post #15 of 20
Actually, the RX-4503 does not have an active crossover. You will need to use the bass control on the receiver and the controls on the sub to balance the bass output from the sub and the L&R speakers.
post #16 of 20
Thread Starter 
Quote:
Originally Posted by Leo King View Post

Actually, the RX-4503 does not have an active crossover. You will need to use the bass control on the receiver and the controls on the sub to balance the bass output from the sub and the L&R speakers.

ooh, good info.
To cut bass from the bookshelf speakers, turn down the bass setting on the receiver and turn up the gain on the sub?

Does turning down the bass on the receiver remove overall bass from the source where it won't sound good, or can you still compensate with the sub's amp?

I'm asking because the bookshelf speakers are more like satellites (Infinity TSS SAT1200) and they cannot handle much bass at all.

I could use instead the Pioneer bs21 bookshelf speakers but they are only 6-ohm so I'm hesitant to use it with the Sherwood which in the manual says use only 8-ohm speakers.
post #17 of 20
The remote control has different options to cut & boost the Left, Right & Subwoofer channels so you can have flexible options to adjust the treble/bass and each individual channel without affecting the tonal quality and without damaging the small speakers. I'm trying to locate the manual for you to read 1st.

Edit: Please see the link for the manual in my post below.
post #18 of 20
post #19 of 20
Thread Starter 
Just ordered the 4503.
post #20 of 20
Quote:
Originally Posted by Subjga View Post

Just ordered the 4503.

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