Difference between CS-77 and CS-77A?

[daddydlb]

Can anyone enlighten me on the difference between the CS 77 and 77A. Is the 77 a three way and 77A a four way? Different drivers or crossovers?

 

[siamac]

The biggest difference between the "A"-Versions and none-v. are the wooden Frontplate instead of a black one. The CS-xxA you can also use without the Frontgrills. :yes:

I think the Versions had nothing in common, everything changed, drivers, crossover, design .....

 

[siamac]

 

[siamac]

http://www.vintage-electronics.cc/cs88a.html

 

[Cloth Ears]

Sorry to open an old thread, but weren't these CS-77A's seriously efficient (I've read 102dB/W/m and 108dB/W/m in various places)? How true is what I read (I know I shouldn't believe everything)?

 

[Andreas]

Hi. The 77A is standing close to me. It is definetely a 4-way system. The sensitivity is 95 dB/W as given in the specifications. Andreas.

 

[Cloth Ears]

Thanks, Andreas.

Someone has 'broken one up' and I thought I should at least save the woofers (as they're seriously pretty). But the tweeter and horn tweeter aren't for sale, so I'm not sure what happenned to the speakers.

 

[Strawman]

The tweeters probably suffered from foam rot and were discarded. :scratch2:

 

[agger]

No foam rotting on the CS-77A, they are all textile type

 

[Strawman]

I'll stand corrected. They looked similar to my 88A's which are showing signs of it. :scratch2:

 

[Cloth Ears]

Got 'em. I'm going to see how they go in OB before I try to corral them in a box.