Quick Yammy HTR-5890 Bi-Wiring question...

[Ciotti]

I've been reading these boards for a while but have never had anything worth posting until now, so here goes...

I just picked up a Yamaha HTR-5890 and am driving a set of Paradigm Monitor 7's for the mains. The reciever isn't driving anything on the surround rear channels because I'm not using speakers back there.

I'm thinking about bi-wiring the Monitor 7's and the reciever's manual is telling me to wire them to the speaker A and B ports.
My question is whether or not the reciever will use the amplification from those back surround channels for the speaker B out and make it worthwhile to bi-wire these mains.

Also, the Monitor 7's have bars wiring the terminals in parallel, when I biwire it I'm assuming it will jump down to 4 ohms, giving me less resistance and technically more power. Will that alone make it worth it for me to bi-wire?

Thanks in advance guys, this forum is by-far the best on the net because of the knowledge base you guys provide. Rock on!

 

[j_garcia]

Whether biwiring or biAMPing, you need to remove the jumper on the speaker. Removing the jumper should actually present you with two higher impedance loads, but the power for each is theoretically greater. Trying to biamp of a receiver this way isn't likely to give you huge gains.

 

[Ciotti]

So the amplification from the surround back channels won't kick in to push the speaker B jacks I guess?

 

[fergusonv]

regardless of which amp is pushing the speaker they all use the same power supply and caps so your going to run out of juice just as quick whether your biamping or not.

 

[j_garcia]

So the amplification from the surround back channels won't kick in to push the speaker B jacks I guess?

Some receivers can do this via a switch, or by actually rerouting the signals via the pre-outs, but I'm not familiar enough with the 5890 to tell you if it can do either.

regardless of which amp is pushing the speaker they all use the same power supply and caps so your going to run out of juice just as quick whether your biamping or not.

Yep. That's why I say you won't see huge gains. Biwiring is useless - just running two sets of wires from a single channel. Biamping would be using separate amps to drive each portion of the speaker, which should result in a ton of headroom, providing you actually need it. I've read the 5890 has very respectable power for the price, so I think your best bet is to leave it as-is. If you want more power, look for a 2ch amp.