Speaker cables (biwiring)

Simple question
Is there any rule that says that in bi wiring the cables MUST be of the same type and why ?
Pros cons do and don't please .

I used to have kimber 16 TC in a system that own and know 6 years . thought it was fine, in general I like twisted or braided things ....for speakers .

So a friend was busting my @@ to try 1mm single core pure copper cables slightly twisted
He was right !!!! after that I rediscover my speaker both in middle and high ( can write specific details let's stay that I loved it ) BUT I lost 50% of the bass ....almost

So I expirament try a few things like other type thicker or not twisted or double lines with minor improvement ....

So come up with the idea to biwire use previous kimber for bass and single core for middle and high ..
To my ears is like I have a new speaker never heard my speaker playing like that .
BUT !!!!!
My audiophile friend says that you cannot biwire with different types of cable ..

Can anybody explain why ?
 
Bi-wiring is effectively a form of star grounding based at the amplifier output, although there is little potential for gains in that area. From a certain point of view it could be said to be more than that, and why should there be a limit on which cables to use? They operate independently.
 
Placed my question with manufacturers that produce ready cables for bi wiring and they said to me that HI level cable is different material diggerent structure
So i done see any reason to MUST have the same type

One audiophile said to me that signal travles different between different types of cable and indeed is effected differntly by the skin effect , inductunce and capacitalce of each individual cable

that may result to a minor phase shift between the 2 ways low/and mid hi

This on its own must be a very good reason

in my case all that worked for my favor and to my ears i now have a new speaker in my house

next week i will modify and share the same practice to my second set of speakers to see how things are going to be
 
Oh, this can be a good one. Discussing bi-wiring pros and cons with Hifi-people is like discussing engine oil with car guys.
This thread can explode...bringing out the popcorn!

@Mattes above universally sums it up.

But some tinder to get the fire starting - by definition bi-wire implicate different loads are presented for each wire set. In that perspective whichever combination of cables you chose is completely overshadowed by the load each node sees and has to transfer signal through.

And remember, almost everything you change make a difference in sounds. If it sounds good, it is good.
 
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In bi-wiring you can literally use any wires you please, either the same or different.

Besides the resistance, the inductance of the wire does also matter (LPF).
For unusual wires (Kimber Cable, etc.), the capacitance also matters, and can affect the amplifier.
 
In most cases:
The only thing that matters in speaker cables.
Is the total end-to-end resistance of the cable with respect to the loudspeaker frequency impedance curve.
In most cases:
The only thing that matters in speaker cables.
Is the total end-to-end resistance of the cable with respect to the loudspeaker frequency impedance curve.
No this is absolutely wrong and clearly very outdated information
Each cable will introduce capacitance , inductance and skin effect in the signal . Resistance which is the less importand and indeed each cable in biwiring will behave different simply because they have different load .
We all wished that the only problems of cables was resistance This will only effect sound level only
 
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In biwiring either with the same cables or with different cables one will face for both cables capacitance , inductunce, resistance , structure problems which result to some interference issues .
As a result even with same type cable be wiring we should expect the cables to behave slightly different because one way or another those handle different loads .

In case where my cables have haotic differece in construction one is multicore braided almost 6mm, while the highs are single core 1mm slightly twisted obviously there should be a huge difference in they way the work .

To my ears it seems that they effected phase to a slight point.
Capacitance, inductunse , resistance , and skin effect will eventually effect the speed the signal travels and between two so different cables any losses will be totaly different and that is what we hear as difference between the solution A next to B

Accordingly if you have a speaker that is perfectly phase alligned ( which i see almost impossible for passive speakers ) there is a cahnce that different ypes of cables will mess it up

In my case it worked for the best ( i can accept that my speaker was not perfectly phase alligned ) and i was just lucky

Indeed though i will perform the same test with the same principal with a pair of random speakers that i have avaiable .