which boomboxes need tweeter upgrades?

[k2j]

just wondering which boxes have bad sounding tweeters and get the most from a simple upgrade?

I think I recall superduper mentioning the 5150 .

 

[THAFUZZ]

That's a very good question Brent. I recall member Vladi metioning that the Sony CFS-99 could use better tweeters. I've only heard it for a few seconds on a display shelf in 1983 and couldn't really test it out.

 

[Reli]

GF-9191

 

[Ken]

GF-777 & variants.

Good question!

 

[baddboybill]

GF-9191

If my memory serves me the highs are nice on 9191. It's the bass that s--ks


Bad Boy Bill

 

[Old school Scott]

My Panasonic 5150 sounded a bit dull and muffley when I compared it to m yLasonic rs OSS.
But after I added tweeters, It sounded great.

Cheers OSS

 

[Reli]

GF-9191

If my memory serves me the highs are nice on 9191. It's the bass that s--ks

Hmm, I think the opposite is true. I've got 2 of them, and while they're not bass mosters, they seem very bass-biased. The highs are muddled and imprecise.

Someone here posted about changing the resistor so that the tweeters would produce more sound......I forgot who it was.

 

[k2j]

My Panasonic 5150 sounded a bit dull and muffley when I compared it to m yLasonic rs OSS.
But after I added tweeters, It sounded great.

Cheers OSS

My bad, it was probably you OSS. I have a 5150 and I always thought it sounded a bit dull. Do you recall what the tweets were out of that you used, capacitors?

 

[tshorba]

Someone here posted about changing the resistor so that the tweeters would produce more sound......I forgot who it was.

Think of resistors like a tap, the lower the resistance the more current flows thus increasing the tweeters output

Peizo tweeters can be improved by adding a cap to block the unusable frequencies. Most piezo's don't have a cap on them as they are not necessary (like a voice coil dynamic driver does) but adding one should yield a better response.

 

[Old school Scott]

I just got lucky when I found this little CD player.
The tweeters were the perfect match.
https://boomboxery.com/forum/viewtopic.php?f=47&t=6409&hilit=+5150

Cheers OSS