bi-amping RT800i's

danger boy

Ok, i know bi-amping has be discussed up and down, left and right. i'm thinking of bi-amping my 800i's. Here is my question.

I know how to do it.. split the upper and lower inputs. I read a post in the archives on it. I think i understand how it works. One thing raised some questions was that when running the lower inputs on the 800i's, you hook them off a seperate amp.. which is run off the LFE out? Is that going to overdrive the drivers in the 800's? the 800's don't have sub drivers.. just a 2 way design.
I guess best way to find out.. it so try it.

any thoughts?

thanks

RuSsMaN

Bi-wire - 2 pairs of wire run from 1 amp.
Bi-amp - 2 pairs of wire, independent of each other, run from 2 amps.

No LFE involved.

Cheers,
Rooster

danger boy

cool Russman.

just want to get this right and not blow a driver or something. ha ha ha. upper binding post run off of receiver. and bottom run off external amp from the pre-outs? correct?

thanks

RuSsMaN

Thats one way to do it, sure.

Cheers,
Rooster

faster100

or if you have a 2x4 output amp you can run all 4 outputs to the upper and lower binding post on the speaks, other wise a 4 channel amp with a splitter cable to split your left and right pre-outs into 4 instead of the 2, or 2 -2 channel amps... I didn't notice a difference when i bi-amped my rti70's.. but i guess i don't have a super critical ear and i don't have alot of experiance with other sounding gear to compare what i hear besides my own,

RuSsMaN

Don't confuse him all over again, let's work with what he has.

Baby steps.

How are your 70's bi-amped? Using the Integra and the M-504?

Cheers,
Rooster

faster100

I know i sometimes make that mistake, well when they were bi-amped i ran the rca's from the pre-outs to the amp, and my 504 has dual outputs A/B if you will... switched. and with the A amp i ran a wire set to the bottom binding post and with the B amp i ran a single wire set to the tweeters on each speaker. so i could actually (no real reason to) turn off the tweeters or woofers with the A switch or b switch,
It supposed to be 165 wpc x2 and when i called onkyo they said it output 165 to each of the speaker terminal outputs x4, so i thought that seems alittle much for 165 watts to each tweeter.. Polk actually said that was fine how i had it hooked and would not be to much power, who knows, the experts i guess but i decided to take some stress off the tweets and just use one set of amps and Bi-wire them instead.

I also for fun ran the tweets to my integra internal amp and the mids to the M504, stil didn't notice much difference

danger boy

yeah, for me baby steps are best. I want a simple bi-wired hook up. nothing to extravagant please. simple = better to me

I guess the thought is that the tweeter and the mid bass when bi-amped get more and cleaner power, correct?

TonyPTX

Originally posted by danger boy
yeah, for me baby steps are best. I want a simple bi-wired hook up. nothing to extravagant please. simple = better to me

I guess the thought is that the tweeter and the mid bass when bi-amped get more and cleaner power, correct?

Wait, now I'm confused.... do you want to bi-wire or bi-amp?

faster100

The easiest way to look at it is this, BI-AMP involves extra amps and wire, BI-Wire just involves an extra wire on each speaker, doubleing up wires of you will,

Ok Danger never mind the BI-amp thing i just don't see the large improvment, as i have done this test....

well unless you want to, i'm not your boss, LOL

BI-wire= Ok you have a speaker wire from your receiver coming out of the left and right channels ? Correct

Now remove the gold jumper off the binding post of the 800's

you now have a set of posts with no wires attached, run quickly and get another wire run same for each sepaker, attach one end to the remaining post on each speaker

Ok now where do they hook on the receiver????

you take left wire and double it up on the receiver with the one already in the left channel,

same with right or what ever one you start with first,

so now it looks like a clump of wires out of each channel on the receiver, but what it is is 2 sets of wire plugged into each side, make, sure you get red(positive) and black (negative) correct on all wires when you go from speaker to receiver, and now turn it on and look for smoke, No really your all set.. I hope you didn't already know this and i made an **** of myself like you didn't know what to do, LOL Ok Ok its for all the newbies also

have fun

danger boy

BI-AMP

i already mastered bi-wire. My typo in an ealier post.. i was way sleepy.. it was very late. I'm talking bi-amping front speakers.

thanks

faster100

Oh Oh Oh, my bad danger boy... Ok first things first. you need 4 amp outputs from your main amp or receiver... do you have this??
This means a 2 channel amp with 4 binding post outputs... or two 2 channel amps prefferably of the same model and power output..

if you answered yes??

follow the above instructions a few posts up from myself except instead of doubleing up the dual wires from each speaker, run each wire set to a amp. tops (tweeters) to left and right amp 1
and bottoms (woofers/mids) to left and right on amp 2

Thats all

Let me know if this helped at all....

faster100

here is a very generic pic to display what i'm talking about, substitute the amp i have shown with your two 2 channel amps or with a 2 channel amp and the front mains internal amp from the receiver

danger boy

thanks for the pic faster100, i'm a visual person.. now it does make sense.. although if i purchase a two channel amp. how many of them offer 8 (four sets) binding posts? It seems most of them offer only two that i have seen. so is your amp a 4 channel amp then? or does it have A - B speakers?

faster100

No its a 2 channel with A-B speaker sets on switches... Good i'm glad that helped you out some, No not many newer amps offer this config, what you can do is get a 2 channel amp to power your lower portion of the speakers and power the tweeters with the receivers internal amp for the front mains.

what receiver so you have? brand and model??

HK makes a amp pa-2000 i think that has like 4x45 watts from a 2x input..