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Rectilinear Highboy Tweeter Replacement

Yes, a wall of sound. I am currently listening to Radar Love by Golden Earring at an elevated volume. Here is a photo of some of my receiver gear.
 

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joe_tex said:
Yes, a wall of sound. I am currently listening to Radar Love by Golden Earring at an elevated volume. Here is a photo of some of my receiver gear.
Click to expand...
That’s quite a collection. I’ve currently got an Inca-tech Claymore driving them. Lovely little amp with quite a bit of current
 
I would suggest that you may want to get some *cheap*, easily compressible, self-adhesive weatherstripping and apply it around the internal ledge and on the central crossmember while you have the baffle(s) off. Mine had some thin fabric tape in there which didn't seem to provide either sealing or rattle prevention. You don't want it to be too thick or dense or it could cause the front baffle to sit proud. Another inexpensive maintenance item is dumping superglue in the open wood screw holes in the cabinet and letting it set up and cure completely BEFORE putting the screws back in. This has helped keep things from stripping out on reassembly. Matchsticks and toothpicks can be your friends!
 
Thanks. Screws in wood in are not a good idea. The wood gets worn out and the screw will no longer tighten when unscrewing and screwing in the same hole several times. Also, a threaded metal retainer clip (nut) can be glued to the inside of the baffle over the screw hole. The screw will go into this retainer and lock it in place with the thread so it will not come loose in the baffle. Am I making sense with this comment?
 
joe_tex said:
Thanks. Screws in wood in are not a good idea. The wood gets worn out and the screw will no longer tighten when unscrewing and screwing in the same hole several times. Also, a threaded metal retainer clip (nut) can be glued to the inside of the baffle over the screw hole. The screw will go into this retainer and lock it in place with the thread so it will not come loose in the baffle. Am I making sense with this comment?
Click to expand...
Well, I recapped the 60 uH and 2.5uH caps but just with cheap generics as a trial run I’ll ultimately use high quality film caps but from Nee Zealand the shipping is a killer cost-wise and it will take a while’s too. The old 50uF caps had drifted to around 70 and the 2.5uF caps to around 4.

Immediate transformation of a significant order of improvement after recapping. Despite the compromised tweeter array the graininess has gone and the boxiness is much abated too. There must have been some peak in the upper mids exacerbating that. Overall much better balance. I really cranked them and man can they sing.

These are the only speakers on my collection that give my Proac Response 3’s a run for their money, and they were $6500 US in 1991 which is about $16,000 today. Of course the Proacs are faster and smoother, and I would say more refined. But the RIII’s have scale, stonking base and I’m getting a bit of that electrostatic type treble.

Totally worth recapping and pretty easy with only four caps between the two cabs
 
Polix9 said:
Well, I recapped the 60 uH and 2.5uH caps but just with cheap generics as a trial run I’ll ultimately use high quality film caps but from Nee Zealand the shipping is a killer cost-wise and it will take a while’s too. The old 50uF caps had drifted to around 70 and the 2.5uF caps to around 4.

Immediate transformation of a significant order of improvement after recapping. Despite the compromised tweeter array the graininess has gone and the boxiness is much abated too. There must have been some peak in the upper mids exacerbating that. Overall much better balance. I really cranked them and man can they sing.

These are the only speakers on my collection that give my Proac Response 3’s a run for their money, and they were $6500 US in 1991 which is about $16,000 today. Of course the Proacs are faster and smoother, and I would say more refined. But the RIII’s have scale, stonking base and I’m getting a bit of that electrostatic type treble.

Totally worth recapping and pretty easy with only four caps between the two cabs
Click to expand...
Yes I agree totally! I replaced all of the caps with Jantzen years ago, and it made a huge difference. Definitely keepers.
 
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