If I missed where I might find the answer to this, my apologies.
I'm looking for the "proper" way to setup a sub-woofer without a sub-out on the receiver or a pre-Amp option.
Specifically, I have a now quite old Denon AVR-800. It's an OK receiver and I like it, it has spring-loaded speaker outputs, fl, fr, center and surrounds. No sub-out and no pre-Amp out. I bought a new KEF 2150 powered sub-woofer based on the salesperson's assurance that it could use it. I don't see how. The sub has four inputs, all RCA low-level. In one setup of the 2150 (there's really only two shown, and each only in pictures, no text description) the subout of a receiver goes in the line in left of the sub. In the other setup, the preAmp output (L&R) goes in the L&R line ins of the sub and the outputs of the highpass outputs go to an amp and then to the L&R speakers. Now I told the salesman I didn't have a subout or a pre-Amp out and he said I could run the "regular" L&R speaker outputs from the receiver to the sub and then run the speakers off the high pass outputs on the sub, essentially like the second diagrammed setup, accept w/o the pre-Amp outputs and the Amp outs to the L&R speakers. This doesn't make sense to me tho, seems like the sub would not be expecting a signal of the kind (strength) directly from the speaker outputs, and that the subwoofer outputs wouldn't by themselves be enough to power the speakers.
What can I do?
I'm looking for the "proper" way to setup a sub-woofer without a sub-out on the receiver or a pre-Amp option.
Specifically, I have a now quite old Denon AVR-800. It's an OK receiver and I like it, it has spring-loaded speaker outputs, fl, fr, center and surrounds. No sub-out and no pre-Amp out. I bought a new KEF 2150 powered sub-woofer based on the salesperson's assurance that it could use it. I don't see how. The sub has four inputs, all RCA low-level. In one setup of the 2150 (there's really only two shown, and each only in pictures, no text description) the subout of a receiver goes in the line in left of the sub. In the other setup, the preAmp output (L&R) goes in the L&R line ins of the sub and the outputs of the highpass outputs go to an amp and then to the L&R speakers. Now I told the salesman I didn't have a subout or a pre-Amp out and he said I could run the "regular" L&R speaker outputs from the receiver to the sub and then run the speakers off the high pass outputs on the sub, essentially like the second diagrammed setup, accept w/o the pre-Amp outputs and the Amp outs to the L&R speakers. This doesn't make sense to me tho, seems like the sub would not be expecting a signal of the kind (strength) directly from the speaker outputs, and that the subwoofer outputs wouldn't by themselves be enough to power the speakers.
What can I do?
