sorry for being a numpty but can someonw draw the wiring setup using a reciever with a bi-amp function- especially if the vertical bi-amp is better would be good to see this schematically.
PS i currently am bi-wiring, and am utterly convinced this is a big improvement, in trebble detail, and openness. (bass on my system always a bit wolly to be honest)
It is me, honest
On my onkyo receiver the bi amp function works between speakers A and the surronud back channels so you use the front A left for the left treble and the left rear surround channel for the left bass and so on for the right hand side. Then in the set up menu tell the amp it is bi-amping the fronts and the rear surround channels disappear from the auto calibrate menu etc.
Can you download the manual for your receiver as it might be better explained there?
Bi-wiring and bi-amping is a simple topic, complicated only because of the fact that there are a number of options that need to be considered separately. It is clear from this thread that some people find it a little confusing so this explanation starts with the basics and goes ftom there. Apologies for those of you who know all this, but for those who don't.........
All conventional passive speakers, other than those that use a single full range driver, contain a crossover, sometimes very simple, just a capacitor perhaps, sometimes much more complex. The crossover does two things (in a two way system) it filters out high frequencies from the bass driver and low frequencies from the tweeter, simple as that. Usually the crossover is a single circuit with one input from the amp and two ouputs to the drive units, but sometimes the circuit that filters the signal to the bass unit is electrically (sometimes physically) separate from the circuit that filters the signal to the tweeter, so two inputs to two separate 'half' filters to two drive units.
About 20 or 25 years ago someone came up with the idea that, in the case of speakers with two separate half filters, it would be possible to wire each filter separately back to the amplifier improving the connection by being more direct. It was also considered that such a connection would improve the separation of the filters one from the other. This was called bi-wiring.
Similarly if such a speaker was wired back to two separate but matched power amplifiers such that one amplifier drives left and right bass drivers and the the other left and right tweeters, this is bi-amping, in this case 'horizontally'. If two identical power amplifiers are used such that one channel drives the bass driver and the other channel drives the tweeter in the same speaker, this is also bi-amping, in this case vertically.
You can run variations on this by using different types of cable for low and high frequencies, different amplifiers for low and high frequencies and propably others that do not at this moment come to mind.
Final point, using 4 channels of a multi-channel (AV?) amplifier that has a single power supply, means that the designations horizontal or vertical bi-amping is meaningless in this case.
It is my personal view that none of these techniques are worth the expense of implementing them, but others think differently.
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