alexia V
- Thread starter u-sound
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Vintage_Tube
Member
I have the V1's and probably will die with them & the price in Portugal (and outside the USA) is absolutely gross -- of course I understand there is 24% VAT added as well - bless you for your devotion as an audiophile.
Best Sir,
Bob
Big B
Member
I replaced the resistors on one of my speakers. It appears to have made a change which is good I need to spend more time with it. My speaker changed it's position very slightly I'm not sure if that is the change I'm hearing. I'm changing after approx 2600 hours.
Vintage_Tube
Member
IIRC a few years ago Wilson has a demo out west and, in most situations, they change the resistors prior to a showing regardless. In this instance, they didn't and afterwards it was mentioned by some auditioners they noticed the speakers didn't perform as expected. Afterwards it was realized they did not change the resistors as they normally do and apparently the resistors in the demo'd speakers were indeed open.
From Wilson -- "Resistors are in the crossover circuit in series configuration (parallel pair). A zero-ohm impedance is a dead short so the resistors would act like a piece of wire. What they wouldn’t do is set the proper level that the 2.55ohm load does. New resistors should have greatly improved the sound." (P.S. - the 2.55-ohm reference is in reference to those used Alexia 1's. Mid & Tweeter resistor values for Alexia 2 are different values & speculate Alexia V's are different values from 2's).
Best to you Sir & great preventive maintenance,
Bob
Big B
Member
Thank you for mention of doing this. I would not have been aware.
Vintage_Tube
Member
You're welcomed & believe me, not many Wilson owners are aware that it's wise to replace the resistors after a length of time. The best policy is replacing the mid & tweeter resistors regardless with brand new ones & if good, keep for the next swap out.
Best Sir,
Bob
Big B
Member
How do you test if they are good?
Do you buy the Wilson resistors?
In my package of resistors I got 1 with the wrong number. I will speak to Wilson next week I’m guessing you don’t want mess around with the wrong one.
Do you buy the Wilson resistors?
In my package of resistors I got 1 with the wrong number. I will speak to Wilson next week I’m guessing you don’t want mess around with the wrong one.
Vintage_Tube
Member
You can search the web for those type resistors & values -- I forgot where I ended up -- but they were identical and less $$'s. However, the skeptic in me decided to go with the bundle option on Wilson Accessory web page & bought what was necessary for my Alexia V1's. That turned out to be Tweeter resistor value of 9.0 ohms and Midrange value of 5.10 ohms.
If you take a VM across both leads, say of the tweeter (9.0 ohms) the VM should read 4.50 ohms (parallel value) and likewise half value for the mids. If the VM reads 4.50 ohms (for tweeter) & 2.55 ohms (for midrange, Parallel Value), they are good & can be reused -- a zero reading represents an open.
If you have the latest & greatest V's -- they came with:
The Tweeter option contains 2 resistors assembled together with a final value of 2.1 ohms.
The Upper Midrange option contains 2 resistors assembled together with a final value of 1.2 ohms.
The Lower Midrange option contains 2 resistors assembled together with a final value of 0.05 ohms.
The Bundle option contains resistors for the tweeter, upper midrange, and lower midrange listed above ($240.00).
Anything else is an error on someone's desk. I would not install a resistor that was of the incorrect value for that portion of the speaker.
Hope this helps Sir,
Bob
Vintage_Tube
Member
If anyone read my earlier post above --my math was wrong -- had to open my crates and pull the accessory paks out and hook up my Fluke 87II. Post #28 is accurate now.
Best Sirs,
Bob
Best Sirs,
Bob
Big B
Member
I was noticing my speakers were sounding slightly on the dull side before I read this article. Attributed to age.I have replaced the resistors in both my speakers. My speakers have come back. They have brighten up and sound a bit more crisp. I like it. I recommend. I still have to do my center. Not sure if I will do my 4 surrounds.
Vintage_Tube
Member
It's definitely something every Wilson owner who has accessible resistors in the crossover network do periodically -- even if someone finds they don't need changing it's a good preventive maintenance routine to perform.
Best Sir,
Bob
gadawg
Member
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