Labtec apx-4620 manual connections diagram specs

You don't want to go there!

Computer sealed speakers are not made to take apart. The case is usually molded plastic and press-fit to close and never be opened.

Have you tried changing the connector leads? They can become faulty. Powered Subwoofers generally work off one connector from the amp. The Sub is a mono amp basaically. So all it needs is the main imput and an earth. One possibilty is that you have the wrong jack plug. Say a stereo instead of a mono, or the wrong size one!

very good ! there is nothig wrong with your system, buy a stereo to mono RCA jack (Rs10/-) and connect the subwoofer (if single coiled) L+ & R-- of your existing amplifier. NB: Please go through the manual of amplifier
.

You CANNOT have a stereo set of RCA jacks "wyed" into a single XLR mono input.

The RCA output drivers will "fight" each other. Some things will appear to work, but give poor performance.

You could make a rudimentary passive mixer by putting a series resistor say 1K ohms from each of the RCA's to a common UNBALANCED input of a subwoofer.

The XLR is balanced so that would not really work unless you also have an unbalanced input on the subwoofer.

The right way to do this is to get a cheap two input mixer that has EQ with it and mix your two mains before sending to the subwoofer. You want a little mixer that also has balanced outputs (XLR or TRS) to send to the subwoofer.

UNLESS the subwoofer has EQ in it, you really need to have an EQ in the little mixer so that you don't send high's to the subwoofer... They don't like highs and the sound will suffer.


.

The simplest way is to insert the sub into the speaker wire run -- connect your receiver's speaker output to the sub input, then the sub output to the speakers.

These are the "High Level" connectors on the left side of your sub.

If your receiver has a subwoofer out (either one or a stereo pair) then you'll get better quality sound by connecting that output to the "Low Level" connector or connectors on the right. If you have stereo, then use both connectors. If your receiver only has one subwoofer output, then connect it to the left (may or may not me marked as "mono" depending on the age of your sub)

Hopefully that helps. If it's confusing, post back questions or post the details (brand and model) for your receiver.
If it's helpful, please hit the Thumbs-Up for me!

Hi,
Here you can find the manual for your subwoofer. Looking at its back side, it has 2 RCA plug input for stereo. Receiver has just mono sub output, but as low frequencies are not easily locatable, mono is perfectly OK.
Just connect receiver SUB-OUTPUT with RCA cable to your subwoofer's RCA LEFT input. Then adjust volume to match rest of your speakers.

If your receiver has a dedicated subwoofer line level output, we recommend connecting your subwoofer to this jack. Most receivers will have just one (mono) subwoofer output, while quite a few subs require two inputs. You can use an RCA "Y" adapter cord , which is a cable with one female RCA jack at one end, and two male RCA plugs at the other. Some receivers require menu settings (such as "sub-on" or "front speakers-small") that must be made before the sub output will be active.

if this is ao powered sub, that plugs into the wall, there should be no problems, if it is powered solely by the reciever it may work fine but be sure you dont exceed amperage on the subwoofer.

just connect your subwoofer mono RCA to your amp sub single out rca connector. you do not need to megre all those 4terminals into one. in fact internal circuit of those 4rca are merging inside to one since the sub uses only a single amp. 4inputs was meant for sources with multiple sub out