So, are you sending the full range signal to all the speakers, including the sub, but the sub is filtering out the high frequencies? If I have this right, you could easily benefit from using the internal crossover of the receiver.
By crossing over using the receiver, you filter out the lower frequencies from all the speakers. This allows the speakers to function better, with less distortion, as they would no longer have to attempt to reproduce frequencies near the speaker's low frequency limit. In addition, it would give you a bit more amplifier headroom, as lower frequencies are the most power-hungry. It would also allow you to tailor the crossover point for each speaker separately, as the fronts, center, and surrounds probably all have different bass response characteristics.
Go ahead and give it a try. Nothing to lose, and much to gain.
I note that the W2 sub tops out at 80 Hz (a bit restricted), so your receiver crossover point should be no higher than 60 Hz for any speaker in the system.
It's a VIRTUAL channel unless stated otherwise.
Last edited by RayGuy; 11-02-2019 at 12:28 AM.