Atlas Sound PD-5VH old version : I ask about help for replace K-55-V

[impact]

Hi   to All  ,

can I ask about  small help ? I assembled cornwall with crossover  B3 ( K-33-e ; K-55-v ; K77) .  Find one  pair  NEW Atlas  sound PD-5VH, change  K-55-V   to  PD-5VH

I need  make any  adjustment  in Crossover B3 ?

I cannot find  any  info  about  this OLD  PD-5VH (  i  think  this  is  very  old  version  ) , but  I bought in Sealed Box , absolute New ! check  photos my PD-5VH

Anybody  have  an  info  about  this old  drivers  Atlas Sound PD-5VH ?

Help !

rgd Alex

[DeanG Crossovers]

That doesn’t look like any PD-5VH I have ever seen.

 

This will strain my memory … I think the B3 network was for the Hepner driver (K-52). On the plastic horn, the part number became K-57-K. The tweeter was the K-77. I believe this is the combo the B3 was designed for. 
 

Below is the driver you need. I would go from B3 to B2. 
 

https://www.atlasied.com/pd-5vh

[How loud]

Weather proof version

[impact]

Hi 

On the photos my speakers.

I remove k55v  and established this PD5H...:)

[OO1]

 the K-55vV is also environment resistant 

[OO1]

  , the larger older PD5VH   has a transformer for 70V applications 

[Bubo]

I glazed over

Are we discussing the much sought after original driver that Kilpsch used in the LaScalas heresys etc ?

If yes, I wasn't aware that Atlas was selling them.

Phenolic or titanium or something else.

 

I have a pair of the originals on my LaScalas

Must be 40 years old

Do the magnets need to be remagnitized

and do the phenolic diaphragms dry out losing flexibility ?

Thanks in advance

 

I realize, that the subject of different mid drivers is a bottomless discussion

 

Since Atlas makes PA systems

I believe that their driver offers superior speech intelligibility

Where Klipsch is IMHO (and most theater owners)

the best in the industry

[impact]

I   established  inside  Cornwall , work  well ...

Anybody  know  about  this  OLD  Atlas  Sound PD-5VH  (  on the  photo difference  with 5VT)

[OO1]

practically the  same thing  as a PD-5VT , except it's 40-50 years older  and the magnet is NOT  ceramic 

[impact]

I   established  my  Old "atlas sound PD-5VH with egg head cap covers"   inside  Cornwall ,  speakers work  well ...

I am a bit confused .

or   I need   think so : plays and  well . 

 

P.S. with K-55-  ( it seems to me!) the sound was ' flat sound " 

staging Atlas Sound added stage and space

 

[OO1]

 the K-55V  diaphragm  is worn out , you need to replace it , with a new one  

[impact]

anybody  can  advise  me where  can  buy diaphragm  for Klipsch K-55-v ?

[impact]

anybody  can  advise  me where  can  buy diaphragm  for Klipsch K-55-v ?

[jcn3]

16 hours ago, impact said:

anybody  can  advise  me where  can  buy diaphragm  for Klipsch K-55-v ?

 

Call Klipsch parts or here: https://reconingspeakers.com/products-page/klipsch-k55v-heresey-i-mid-127161-diaphragm/

[Bubo]

Any thoughts on the Crites titanium replacements ?

Do they still sell them .......

[OO1]

5 hours ago, Bubo said:

  titanium

 

there is no such thing   

[jjptkd]

On 9/22/2023 at 3:24 AM, Bubo said:

I have a pair of the originals on my LaScalas

Must be 40 years old

Do the magnets need to be remagnitized

and do the phenolic diaphragms dry out losing flexibility ?

Thanks in advance

 

 There was a graph floating around of a new aftermarket mid driver testing better than the Klipsch k55v until it was pointed out that the k55v used in the test was 40+ years old and supposedly (i never seen a new chart) when the diaphragm was replaced in the old driver it tested about as well as the new aftermarket driver did so I guess the short answer is there likely is some degradation to at least the diaphragms.  

[OO1]

On 9/22/2023 at 6:24 AM, Bubo said:

  the phenolic diaphragms dry out losing flexibility ?

the diaphragm deteriorate  with time  ,  new replacements are night and day  ,

[Bubo]

Appears I have found my next audio project

the last 1%

[JohnA]

I think I remember seeing the old dome rear cover in old literature for the -5VH.  It will be essentially the same as the current production and should use the same diaphragm, should you ever need one.  I'm sure Atlas will sell you all you can carry, too.