Small difference is finished speakers Re

[mkusan]

I have for a while a diy 2-way speakers 6,5"+1" , which sound perfectly fine to me.
However, I recently swapped a battery in my DMM, so I decided to check resistance of them for no obvious reason but curiosity.
Measured across speaker terminals one speaker showed 6.8 ohm and the other 7 ohm, is that a difference which requires attention or would you ignore it?

Kind regards
Marko

 

[454Casull]

Ignore it.

 

[Sangram]

Re is one of the easiest speaker parameters to get right.

The difference between the two is 3%, or +/- 1.5%, which is excellent.

 

[mkusan]

Thank you 454Casull and sangram, I can sleep tight tonight unless wife has other plans

Sangram,just to be clear this are the measurements from complete speaker system, from cable binding post via crossover to woofer and tweeter, not drivers individually, which by your explanation would make the difference even more negligible.

Kind regards

Marko

 

[badman]

Agreed, not worth worrying about. You could do a precision SPL measurement and move the quieter speaker to the side of your hearing which is weaker, if you really wanted to waste time on something you won't notice

 

[eriksquires]

Move the one measuring higher southwards so it has less interaction with the earth's magnetic field.

Or, just leave it alone. Either one will play just the same.

 

[mkusan]

Thank you guys, I must admit I am partly sad that there is nothing to improve, to tinker with.

 

[Lojzek]

There is. Have to measure the channel difference of your amp,
presumably fitted with a conventional ALPS or similar pot that has
difference in resistance by default, and put your louder speaker
to the quieter channel (side of pot). Nitpicking .

 

[chrisb]

arrange for an double blind ABX test to see if the difference is audible

I'd bet that on anything but steady state tones it wouldn't be

 

[mkusan]

OK, I understand the common consensus is that everything is fine.
In that case I will just recheck that the screws are tightened to proper torque

 

[mkusan]

Since a thread is worthless without the pictures, here is the object of our musings, screws are fine BTW.

 

[chrisb]

and make sure all your speaker leads and internal wiring is installed in the right "direction"

that's a joke, right?

 

[zman01]

mkusan,

Fine looking speakers. Enjoy!

 

[eriksquires]

Thank you guys, I must admit I am partly sad that there is nothing to improve, to tinker with.

Oh, that's entirely different!!

What kind of cap are you using on your tweeter? Muahahaha. Seriously. Tell me or I won't be able to sleep.

Erik

 

[mkusan]

Oh, that's entirely different!!

What kind of cap are you using on your tweeter? Muahahaha. Seriously. Tell me or I won't be able to sleep.

Erik

Hello Erik,
there are two caps in series with the tweeter, one before the parallel coil and one after. The values were pretty high as 15uF and 30uF, that means expensive, so I went with cheap industrial MKP.

Kind regards

Marko