Originally Posted by carcollector
I have always been under the impression you can hook up a sub to the "regular" speaker terminal outputs because the entire frequency is sent to those outputs. The sub will only pick up what it can play.
Am I incorrect?
If you have a powered sub, then the sub input is usually hooked up to your LFE (subwoofer) out of your receiver. Some powered subs have high level inputs that allow you to hook up to the speaker terminals and *in that case* you can use the speaker output from your receiver. You have to choose one or the other, not both. If your sub has high level inputs, then yes you are right, you can feed it a full range signal
If you have a nonpowered sub (which has no power cord), then yes you want to use the speaker OUT on your receiver
For example, the sub picture above has a "low level" and "High level inputs". If you try to hook up the low
level (sub input) to the speaker out terminals of your receiver, that is WRONG, and you can actually damage something. If your sub doesn't have Speaker Level (i.e. high level inputs), you CANNOT use the Speaker Out of your receiver. If your receiver is flashing OVERLOAD, then I guess you are doing something completely wrong
Please be careful. You can't buy a "conversion cable" to make it work, which is what I interpret you doing. High level inputs should be connected to speaker outs. Low level (LFE or sub INPUT) should only be connected to your receiver SUB OUT or LFE out
If you have the exact full model number of HTIB you are using, maybe the manual is available online and one of us here can take a look at it. What speakers are you using (the HTIB ones or your own?) I guess you have one of these Rocketfish kits that you are trying to use for the rear channels. Correct?