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Dave MacKay

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About Dave MacKay

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  1. I recently acquired a pair of 1986 Lascalas. The raw birch cabinets had some damage (chips, delamination, chewed-off corner) that I have mostly repaired. I’m now about to strip the existing polyurethane and refinish them. I’ve spent a lot of time on this site and the web (e.g., Volti site) trying to ascertain how best to proceed. I was thinking about laminating a ¼” Baltic birch panel to the sides, top, and bottom (but not the front or the back) and then applying veneer on the top, bottom, sides and front (but not the back). 1) Will adding the ¼” panels hurt the value of the speakers? If so, I’ll likely not add them. Adding the ¼” panels would increase the rigidity of the cabinets and provide a smooth surface for the veneer. I’ll use Tite-Bond (PVA glue) to laminate the ¼” panels to the cabinets. Although I have some clamps, I’ll rely on weights and some pin nails to hold the panels while the glue dries. 2) I’d welcome any suggestions about better ways to laminate the panels to the cabinets. I’ll be using sheets of paper-backed veneer. I’m concerned about how best to apply the veneer, specifically how to avoid bubbles/poor adhesion when applying it and chip-out/tearing when trimming it. I’ve been thinking of cutting the veneer slightly oversize, gluing it to the cabinet with contact cement, and then using a flush-trim bit in a router to cut it to size. Alternatively, I could glue the veneer to the ¼” panels before installing them and then install the veneered panels (using Tite-Bond, pin nails, and weight) but I’d still have to use the former approach for the front of the cabinets. 3) I’d welcome advice about how best to apply the veneer, especially from those that have “been there and done that”. I’m scouring this site and the web looking for images of Lascalas to help choose a type of veneer and finish for the speakers. 4) I’d appreciate seeing images of Lascalas that might help me choose the veneer and finish for the speakers. 5) What have people done with the exposed end-grain on the cut-outs for the tweeter and sqawker (see photo)? Those curved surfaces would be tricky to veneer so I'm thinking of just painting them a flat or satin black. I have other questions pertaining to how to finish the bins. I’ll post those in another message. Thank-you. Dave MacKay near Toronto, Canada
  2. I've been gratified by the responses I've had to my posts asking for information to help me figure out how to repair and refinish my 1986 Lascalas. Several people have suggested adding 1/4" to 1/2" panels to the sides of the cabinets. I'm inclined to proceed with that, and will also put a panel on the top and a piece of panel (as a "lip") on the bottom for cosmetic appearance. That way the speaker will appear to be of uniform thickness on all sides. If suitable panels are available with attractive veneers, great; otherwise I'll veneer them. But I'm unsure of how to proceed with the interior of the speakers (where the doghouse is). There I'd only want to apply thin veneer --- no extra panels. However, I'm puzzling over how to do it since it's not obvious to me how to clamp the veneer when its installed. I don't think the doghouse can be removed, so that the veneer would have to be applied with it in place. What have others done when veneering Lascala bins? I'd really like to benefit from any lessons learned, tips, and/or tricks. Thank-you, Dave MacKay near Toronto, Canada
  3. Thank-you. It seems to me that I won't be able to both repair the damage and retain the original finish. That being the case, I'll likely repair the damage and then either apply a veneer or paint the cabinets.
  4. Thank-you both. I'll order in some gasket tape. Dave MacKay near Toronto, Canada
  5. The bottom panels (woofer access panel) on my 1986 La Scalas need some repair because some plys have started to delaminate, perhaps from being exposed to damp. My plan is to remove the panel and either re-glue the plys or replace the panel with a new piece of 3/4" Baltic Birch. There is a gooey substance on the inside of that panel where it fastens to the bottom of the cabinet.I imagine the substance is an acoustic sealant, not an adhesive. What is the recommended sealant to use when replacing the panel? A caulking-like acoustic sealant, a foam gasket tape, or something else? Thank-you, Dave MacKay near Toronto, Canada
  6. I've just acquired a pair of 1986 La Scala speakers. Unfortunately, the cabinets have some damage (see photo) and will need to be repaired and refinished. I'm trying to decide if the cabinets can be repaired and refinished well enough to satisfy my wife's discerning eye, or if I should re-veneer them (likely with 1/4" panels). I'd like to maintain the "as new" look of the speakers. The label tells me that the cabinets were finished in Birch, Raw. There is currently some sort of clear finish (albeit yellowed by age) on the speakers, but I suspect it may have been applied by the previous owner (you can see some of the finish on the network, just to the left and underneath "klipsch"). Was any finish applied to the "Birch, Raw" cabinets by the factory? What was it? A clear lacquer? I've searched the forums to see if this question has already been answered, but didn't find a specific answer. I did, however, spend several enjoyable hours going through old posts. 😄 Thank-you, Dave MacKay near Toronto, Canada
  7. How did you elect to proceed? How did the repair turn out? I'd love to see some pictures of the finished job. I need to make a similar repair to a Lascala and would benefit from hearing of your experience.
  8. Hi: I also just picked up a set of Lascalas (s/n 8657579 and 8657580), which were made in early 1986. They're my first Lascalas. They're in Raw Birch cabinets. Based on the serial numbers, I had expected them to have AL2 networks, but the networks are just marked AL. I hope you'll entertain some questions I have. 1) The speakers didn't come with grills and I didn't see where grills would attach. However I've seen photos of Lascalas with grills. Should mine have grills or not? 2) Would AL2 networks be marked as AL2, or might they just be marked AL? 3) There is a 3/4" plywood panel on the base of the cabinet (slightly smaller than the cabinet footprint). Is that original, or would it be something added by a previous owner? I have lots of other questions (about what's original. recommended upgrades, refinishing/restoring the cabinets, re-capping or replacing the networks, documentation, etc), but I'll hold them for future posts. I'm a newbie to the forum, so please pardon me if I should have created a new thread about this, rather than jumping on this one. Thank-you, Dave MacKay near Toronto, Canada
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