Pioneer CS-1 anyone know anything about them?

[NH-MAN]

Well I went and bought them. They are in fantastic shape. And I personally think they sound very good. I have them hooked up to my Onkyo TX-4500 MKii. They sound real good and have plenty of bass. These were from an estate sale. Had been in a basement for years and not being played.

Wow the cabinet construction is fabulous, such sharp crisp lines and joints, beautiful.
Wish I knew the designers thought on the drivers. Is the horn a mid or tweeter? I wonder if they filtered out some of the midrange for the woofer since a coax normally would play a more broad range of frequencies which wouldn't be needed if the horn was a midrange.

 

[NH-MAN]

Post 12 has pics of innards

Pioneer CS-901, are they decent? | Audiokarma Home Audio Stereo Discussion Forums

 

[Dave N.]

Also if they have Lo-Med-Hi pots on the back, clean them with some deoxit then work them back and forth 30-40 times to make sure they have good contact. The higher end CS series (which these are) tend to use a LOT of caps. A separate cap for each of the settings on the pots, which can get a little pricey. Not sure about the 901’s, but the 99As have a TON of caps in them. I had to build a separate board for all of the caps because the replacements are physically much larger than the originals, but also exponentially better than the originals (in my opinion).

Thank you. I did clean the pots. However they were different than any pots I have cleaned before. Inside they were open and had metal and plastic. There are pictures of them above. I wasn't exactly sure where to put the deoxit. I put it between the metal but not between the plastic.

 

[Dave N.]

Run an ohm meter on the tweeters, maybe an easier/cheaper fix than having to replace them. I think mine are blown too...I worked them over pretty hard in HS and college at KU!

I can do that when I get them open again to deoxit the pots. Thank you.

 

[Dave N.]

Wow the cabinet construction is fabulous, such sharp crisp lines and joints, beautiful.
Wish I knew the designers thought on the drivers. Is the horn a mid or tweeter? I wonder if they filtered out some of the midrange for the woofer since a coax normally would play a more broad range of frequencies which wouldn't be needed if the horn was a midrange.

Horn is a mid on these . I dont know enough about frequencies and scientific stuff to know what you mean exactly. You lost me a little there.

 

[Dave N.]

I love the old Pioneer CS speakers. Many are very efficient and work well with tube amps. I imagine older cap coupled amps would work well too.

I'm just enjoying them right now. I had them on my Onkyo TX-4500 MKii and they sounded very good..Now I have them on my main stereo which is a JVC vr-5456x quad. And I have them with my Fraizer model 7 speakers running all 4 at a time. Just set that up last night so i haven't had a great amount of time with that setup yet. But the little time I did it sounded fantastic.