Arden boxes as well as HPD's (from the then recent takeover by the infamous Harman Corp) were genuinely quality reduced from previous productions)
Thin / flimsy wood used in the Arden enclosures, better materials apparently being beyond the mandated build budget.
Note the: Bio degradable foam surrounds on the Driver cones, Reduced cone mass (patched with folded paper bits of glued on as reinforcements)
Pepper pots drilled by co-ordination disadvantaged, low wage New Hires.. Hey At least iHPDs didn't have the Laughable 'computer designed' Wave guide abominations.
Fairly common for Swarf to be found in HPD motor and HF diaphragm areas.
Just saying, that despite the provenance there 'may' be problems hidden .
Arden Boxes can be stiffened... with ingenuity, bits of wood/glue and screws.. at which point they are quite good actually.
Drivers? Refoam the things this will need doing every 10/15 years. Thank you Very much.. Harman Corp.
Dissasembly (if ambitious) to check for swarf and alignments and to try and patch the pepper pot drilling bungles ...could be useful work.
Crossovers? Replace the Tired Electrolytic caps in the crossover.. and the others, with decent Film 'n foils ..Easy diy.
Cheapish too... Unless one buys into Audio Weenie Religion dogma.
OEM Coils and Resistors are 'fine' quality.. period!
Remember One notable twit who swore that his Several Hundred $$ of Duelund resistors in his HPD crossovers made massive improvement... As if
1. Short story: Don't be be buying 'replacement' or 'improved' crossovers'.
Last decade os seemingly hundreds of bastardised efforts are sold or touted. Boggles my imganiation.
2. Few if any live up to their claims.. caveat emptor.
And If you must go that route (as opposed to refurbishing the oem versions ) absolutely Not... before living with you OEM bits for a Year or so.
G luck and enjoy.. those are Exceptionally Good Speakers.. ONLY limited by the quality of the gear that feeds them.. That ! will be self evident/unmistakable first time you fit Genuinely Good gear.