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One sub, a two channel system ,one HT reciever ??

I have a nice two channel system that uses the Pre Out's of a HT reciever to a line input of my preamp to integrate the HT system with my two channel gear.

Right now, the sub is driven by the LFE of the HT reciever and bypasses the sub's crossover and it works well.

To use the sub with my two channel gear... it would appear that I take the power amp out put to the speaker inputs and then the speaker out's to the speakers and set the sub crossover where I want.

However, the manual says use either the line level input OR the speaker level inputs but not both.

a) what happens if I screw up and fail to unplug them appropriately

b) Is there a clever way to hook up the sub with my two channel system and the HT system?
tcatman

Showing 2 responses by tcatman

tcatman OP
57 posts
 
My equipment is Kef 104 /2's (with a Kef Kube external line level cross over currently not being used)
Audio Research LS 15
Classe Ca 2200 Power amp.
Yamaha 650 HT reciever.
Velodyne DLS-3750R sub
Levinson transport and Sonic Fronteirs DAC

The Velodyne sub has a variable cross over. Which is now set to off because the HT Reciver is managing the cross over point for HT material.

The reciever has a lfe output which I am using now for HT.

In two channel mode... I just switch inputs on the LS15 and leave the HT equpment off.

So, from what I understand I could do this.

I set the yamaha to large mains and No sub.
Ditch the LFE output to LFE line level input.
connect the sub by going from the power amp to the speaker input left and right of the sub and then from the speaker outputs to the KEF 104's. Then set the cross over on the sub to 120 Hz. Then run the reciever's auto calibration with the main LR channel set to 12 oclock on the volume control. This calibrates all of the surround and .1 channels.

This way I get the benfit of using the sub for music with the bass limited kef's and keep the LFE info from HT material going to the sub as well using the yamaha's processor.

Am I off base here?
Thanks for the reply's
tcatman OP
57 posts
 
Thanks all

What worked was to run the Kef 104.2 full range. I used the Kube 200 active equalier to extend the kef 104-2 base range and the second line level output of the Kube to send a second independent line level signal to the Velodyne subwoofer. I set the low pass crossover to about 60 Hz which gives me the missing bottem octave.

More playing to do but I am making progress.

I suspect with a better quality sub that I would have more options since this sub vibrates or buzzes if I set the cross over too high (80 hz).
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