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scratchy sound from tweeter

Hi everybody reading this. Love music but have not a clue about electronics. Since my arthritis stopped me from playing piano and guitar I now listen to vinyl from my old vintage system. Fisher Studio Standard - CA-880 and small Relistic minimus speakers. I bed you laugh now but hey - I am on a small retirement budget.

Sometimes I like to crank the music up (loss of hearing helps doing so). Now a problem occurred while listening. Mostly the left speaker makes a scratchy sound especial when volume goes up.
But there is also a bit scratch in the right one but about 90% less. I changed to wires to reverse left and right speaker to check.

I first thought it could be the 1980's amp condensers. (They might could benefit from a replacement too)
Since the left speaker was observed to have a problem I changed the tweeters in both speakers.
But the problem is still there. It feels when the amp gets warm it increases the scratch.
Question: Is it possible that only the crossover in the left speaker is bad ???
Thanks upfrontPuu
puu
erik_squires
15,902 posts
 
You know, if those are ferrofluid tweeters, it is quite likely the fluid has vanished, and the coils are covered in gunk. 

See if those speakers were in fact ff tweeters, in which case you can do the repairs yourself. 
puu OP
23 posts
 
Thanks so much to you all here, I feel blessed and like to express my gratitude!

I tested the speakers with a 9 volt battery and reverse polarity. They pop in and out without any noise besides a static crack when connecting.
Next thing I will do is to test the Fisher with different speakers. Have to drive two hours to a friend and will update my testing here.

Thanks for the suggestions, that fit my budget . Since a work injury took me down 13 years ago  - I shop @ thrift stores.
In my old working life I rode a bike an skipped a car, this way I could effort a Linn system (LP12, LK1 LK2 and Linn speakers) and I was a happy camper for many years.
That life is gone and I miss parts of it. But the CA-880 made listening to Oscar Peterson "You look good to me" still a pleasing experience, clean and a bit punch. And yes, the Realistic speakers lack a lot and I came close to add an SVS sub to them ( I hat to let go of a "housing only" damaged pair for a great price due to high shipping cost).

Aloha
puu OP
23 posts
 
HI ALL,
Mahalo for your input!
I tested the receiver with headphones and different speakers - all is fine.
Anyway, after a long music journey (like many of you may have done – the first “furniture” to plan to position in a new home where my speakers) I now consider to slowly upgrade my baller system, starting with new speakers! (Guess I am still hooked and I miss my old Linn system remote as a comfort queen)

Well aware the budget guys pay always double; I have to wrap my head around replacement, the $ 60  Dayton Audio B652 and add a Dayton sub or yield at the Pioneer SP-BS22-LR for $100.

A bit much, but I would love to yield at the ELAC Debut 2.0 B6.2 for $277.00 a pair or the KEF Q100 for 320.00. Never heard them and wonder if I can trust the hype.

The Ca-880 has no special sub connection to put out the right crossover signal (hope I say this right?) and I question how the ohms for sub and speaker will be ok fro the CA-880 and future amp.

MAHALO & ALOHA
puu
puu OP
23 posts
 
Here I go...

Andrew Jones did a great job on this speakers and thanks to all of you for that suggestion. I am not a Steve Guttenberg and according to E. Hoffman: "Music And Brain" everybody listens different. With plenty of different music and listening (break in my ears) for a month now I can say:  The best $ 100 I have ever spend so far.
But - these speakers are very sensitive to positioning. Therefore I decided to look for speaker stands but I was not able to find something pleasing under $ 300.
I  found some old Hotel lights made from steel with cast iron foot at a recycling shop and modified them to speaker stands and gave them even rolling feet and sand filled everything hollow.
Now I am a very happy camper from classical to rock.

Yes, you get more than what you pay with this speakers. And yes, a sub I think would be a nice addition. And my 80 watts amp feeds them all nice to a volume of about 40%. If I crank it up more the speakers start to react with distortion. But 40% is more than I need since I mostly go with 30% volume.

Over all: My kudo to the designer. It costs no effort, not much money to be in AWE. Listening to this combination is not just consumption but imagination, very satisfied.Thanks again

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