cornwall I squawker against back panel

[revox2tr]

Hello,

I noticed that the back panel presses against the back of the squawker - I have the option to believe that this would be part of the original design in order to brace the cabinet front to back. I am currently upgrading the crossovers, opened the cabinets so I just saw the marks on the interior padding of the back panel.

 

- K55 are screwed all the way

- mark is visible on both speakers (same configuration, consecutive serial numbers)

 

Thank you for sharing your thoughts on this.

[djk]

The original Forte had the same issue.

 

I added a compressed foam pad behind the driver otherwise the cabinet would 'clank' when driven hard (although I never experienced that with the Cornwall).

[revox2tr]

Thank you for the info djk.

I am optimistic on improving the sound of the Cornwall - not sure yet if replacing the old crossovers with new ones (Sonicaps) will bring the upgrade - considering I do not want to alter the dynamics and live music feel the speakers provide - will follow up after testing on this subject, off topic here.

Very intriguing and a dilemma still:

1) The "bracing" squawker-back panel may be a design feature : compression on the metal horn (with possible positive effects on ringing)  combined with reducing resonance of the back panel - follow up would be leave it as is.

2) On the contrary: bringing vibration from the back panel into the squawker body assembly with negative effects - then insulation and/or separation of the two would be the right choice.