Auricap Orientation

[diypass]

hi all ,
i have a doubt.
on audience (auricap) site there are the following suggestions:
In loudspeaker crossover applications, if the Auricap is in series, like feeding a tweeter, the black lead connects to the input binding post and the red lead connects to the tweeter. Where the Auricap is in parallel, as typically used for woofers, the black lead connects to the speaker connection that connects to the input binding post and the red lead connects to the other speaker terminal. Follow these same rules for midrange connections where you will have a combination of both.

but to me is not so clear: could someone post me the diagrams of the two positions described ?

thank you

 

[AllenB]

That instruction is suggesting that you connect the black lead to the side that has the lowest impedance to the amplifier.

It is not essential to do this.

 

[diypass]

that wasn't my question

 

[AllenB]

Red lead connects to the positive terminal in both cases (sorry I don't have a drawing). This way the tweeter cap black lead connects straight to the amp positive output.. and the woofer cap black lead connects straight to the amp negative output. Unless you have a non-standard crossover.

 

[diypass]

to me was suggested the config you see in the image.

but you write what for the woofer the black must be connected to negative amp

whare is the true ?

 

[AllenB]

This comes down to why it is done. EMI sees the outer foil as a shield, and this should be passed to the lowest impedance to amplifier ground.

Where the Auricap is in parallel, as typically used for woofers, the black lead connects to the speaker connection that connects to the input binding post

This is the nearest binding post.

 

[diypass]

so is the scheme correct or wrong ?

what is the correct connection as written to audience page ?

 

[diypass]

please guys,
someone could draw me the correct orientation to connect the inner and outer foil cap in hp and bp crossover application ?

thank very much

 

[markbakk]

It is not essential to do this.

How can you say that
@diypass: why not try both, listen, and decide which you like the most? Or use a bridged amplifier.

 

[diypass]

ok but before i want understand which is the correct scheme

 

[markbakk]

There is none. Expect and accept irregularities in mystic theories.

 

[42476]

In the really old days of audio and radio, we were taught to put the capacitor outer "winding" on the return side or lower potential or Earth...This was supposed to help shield the "high" side from interference more so than the other way around. I suppose there still may be a reason to do this but it would take very high precision test and measurement equipment to prove or disprove this I'm thinking.

 

[markbakk]

In high-impedance and/or HF circuitry that would make sense. But not in loudspeaker crossovers, low impedance and low frequency.

 

[42476]

Yep, agree with markbakk; That's why I added the comment about precision test equipment.