Hi, I have one of the above subwoofers. My headunit has preouts for a
subwoofer, (RCA jacks) plus the spkr. preouts. I'm powering my spkrs
with a 2 channel 800W amp. If I connect the RCA jacks from the head
unit sub preouts, to the - and+ on the subwoofer, and run 12V power
from the battery, and a ground, shouldn't I have sound from the sub?
The directions say to splice your - and + from your spkrs, to your sub.
Is this the only way this will work? I can control the frequencies from
the head unit. I would like to control the sub from there also.
Actually. I don't think you have to wire a remote switch from the radio to the amp on this product. This powered subwoofer supposedly has automatic signal sensing turn-on circuitry. I have the same problem. So I think I'll try to just hook up the power (to the battery), ground and the + / - speaker wires to one of the back speakers in the car and see if that works.
Choycemoon, that will work, that's how I did mine. I can control the
Low frequency, and the Bass from my headunit, which kicks **** bigtime.
You don't need a remote switch, to turn on anything. Everything will
power up when the key is turned on, and shuts off when it's turned off.
Hook it up just like you said, and it will work fine. Once you get it
hooked up, and hear it, just for grins, diconnect one of the sub wires,
and hear how bad your speakers sound. That little sub kicks ***! Can't
beat it for the $.
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Subwoofers produce the deep bass sounds that give home theater the realism of being at the movies. A good subwoofer can rattle the walls during action sequences, while adding depth to recorded music and a heightened sense of feeling in the midst of a televised sporting event. Because most home theater receivers are equipped with a single subwoofer jack, connecting a second subwoofer requires a simple audio adapter available at electronics stores. Self-powered subwoofers have their own built-in amplifiers to drive the bass speakers, so they cannot drain power on the main receiver in a system and thus pose no danger to the equipment, even when an extra subwoofer is connected.
Things You'll Need:
Home theater receiver Y-adapter with RCA jacks on two ends and an RCA plug on the other, available at electronics stores. 2 RCA subwoofer cables 2 subwoofers
Plug the Y-adapter into the home theater receiver's "Subwoofer OUT" jack.
Connect an RCA subwoofer cable to each jack on the Y adapter and route the cables to the subwoofers in the room. Because subwoofers deliver an omnidirectional sound, the boxes can be placed anywhere they won't get in the way, but within reach of an electrical outlet..
Plug an RCA cable into the "Sub IN" jack on the back of each subwoofer.
Connect the subwoofers to wall outlets and turn on each unit by pressing the power button, typically located on the back panel.
Adjust the volume and crossover settings on each subwoofer as desired. The crossover adjustment knob tells the subwppfer which low-end frequencies to reproduce from the audio signal, such as a movie on DVD. All frequencies higher than the crossover setting will be transferred to the other speakers connected to the receiver.
Tips & Warnings
Use subwoofers that are closely matched in power, as rated in watts, when using two subwoofers in a home theater setup.
Disconnect the subwoofers from the power supply while making the audio connections.
On the back of the receiver, there could be "pre out-subwoofer". If your subwoofer has the same type cable input, that would indicate it is a powered(amplified) sub. Connect those two. If subwoofer only has red/black speaker inputs, it is a passive sub, which means spkr signal runs thru it and then to your main left and right spkrs.. Run your receiver main or front spkr left (red/black) and right (red/black) to those corresponding sub inputs, and then sub spkr outputs to each of your main left/right spkrs..
For surround, on the back of the receiver, there should be spkr outputs (red/black) noted as "rear".
If they are single voice coil speakers (1 positive and 1 negative terminal on each speaker) then connect from amps' Positive output terminal to spkr. 1 positive terminal, THEN spkr. 1 neg. terminal to spkr. 2 positive terminal, THEN spkr. 2 negative terminal to spkr. 3 positive terminal, THEN spkr. 3 negative terminal to amps' negative output terminal.
That is 3 speakers wired in series. if each spkr is 2ohms, then you will have a total 6 ohm load. If 4 ohm spkrs., then a total 12 ohm load, if 8 ohm spkr., then a total 24 ohm load.
Be careful because amps do not like these odd ohm load totals. You might get away with a 6 ohm total load. Depends on the amp.
You don't say if you've configured the Receiver to know you have a subwoofer (under Multicontrol - SUBW YES). Unless it knows about the Sub it won't send anything out that single "preout". You can get an RCA splitter to run that single output to both inputs in the Sub.
Just as an experiment, temporarily run one a pair of cables from the REC OUT to the Sub's inputs and tune an FM station to prove the Sub amplifier is alive. If it's still silent, it's dead. If there is sound (muffled) you need to go back to the Receiver to figure out why the Sub Preout is signal-starved.
If the fuses are good , this could still be a prob with amp, check spkrs with a ohmeter(cheap one from the Shack or anyplace) by touching both leads to spkr terminals, disconnect spkrs first.Have ohmeter set to ohms Rx1 and you Test amp out put by connecting two spkrs that you know are good. Good luck and please rate this answer,thanks.
1 Use MULTI-CONTROL to select SW CONTROL. 2 Press MULTI-CONTROL to display the setting mode. # Press BACK to return to the previous display. 3 Press MULTI-CONTROL to select the segment you wish to set. Press MULTI-CONTROL repeatedly to switch the segment in the following order: REAR SP (rear speaker setting)—PREOUT (RCA output setting) 4 Use MULTI-CONTROL to select the desired setting. Turn to change the setting. When REAR SP (rear speaker setting) is selected. REAR SP:SUB W(subwoofer)—REAR SP:FULL (full-range speaker) When PREOUT (RCA output setting) is selected. PREOUT:SUB W (subwoofer)—PREOUT:REAR (full-range speaker) # When no subwoofer is connected to the rear output, select REAR SP:FULL.
The easiest solution to use your subwoofer is to buy an amp for it. Any old stereo receiver from a garage sale will probably do just fine.
Connect the mono RCA subwoofer output from your Sony with a 1xRCA-to-2xRCA splitter to both the left and right input of the cheap reciever's tape or aux input
connect both speaker outputs of the cheap reciever to the speaker input on your subwoofer. make sure both black (-) outputs on the reciever connect to the black input on the sub, and the red outputs (+) on the reciever are both connected to the red input on the subwoofer.
make sure the cheap receiver's volume is all the way down. turn your Sony up to about the loudest you'll listen to it. turn up the subwoofer amp until it's loud enough to sound good.
leave the subwoofer amp alone, the Sony volume will all you ever need to touch from now on.
You can even now turn off your subwoofer / adjust the volume easily now!