As already mentioned in this other thread, this is a bit of an indulgent nostalgia trip with a pair of walnut veneered Monitor Audio R252 speakers - the first ever speakers I owned. This pair were found locally and were in good condition...
As already mentioned in this other thread, this is a bit of an indulgent nostalgia trip with a pair of walnut veneered Monitor Audio R252 speakers - the first ever speakers I owned. This pair were found locally and were in good condition all round, but a few dings here and there, plus significant sun bleaching to one side of the now near thirty year old cabinets meant that they were passed their best. Not to mention a few water rings, sun damage and yellowing of the lacquer. I started by checking the internals. The only issue being that one of the coils had come unstuck from the terminal board. A very easy fix. Other than a tiny bit of creasing to one of the paper bass drivers they were in good working order. Even the foam was ok with no powdering or crumbling. A relief! Here they are after purchase…
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So, let the cabinet refurbishment begin - GULP !
1. First thing to tackle were the broken speaker grilles, which are a rather fragile design. One grille frame had broken on both sides. Some wood glue and elastic bands held it all in place overnight. Ideally they need a re-cloth too, which will be a straightforward job once some cloth is sourced from Wilmslow Audio...
2. First job was to strip the satin finish lacquer and sun damaged stain. As the veneer is only a couple of millimetres thick I went very slowly, initially using a random orbital sander to break the surface of the tough varnish finish on the cabinet...
3. Once this was done, I then used fine sandpaper, 240 and 320 grades on a sanding block, very steadily removing the varnish and stain by hand. Took quite a long time as you can imagine! Once done, I refined the surface with 420 grade until the surface felt like silk...
4. The cabinets were then stained with Walunt coloured wood dye. Left 48 hours for the dye to flash off fully, then buffed with a Microfibre cloth to remove any excess. And at this point the cabinet backs were given a fresh coat of black stain.
5. Now the tricky bit - the finish. I experimented with a few alternative top finishes, including French Polish, Matt, Satin and Gloss water based varnishes, polyurethane interior and exterior Yacht varnish. French Polishing was ruled out due to its fragile nature (little fingers present in the house). I also wanted to avoid the cabinets yellowing, so that excluded polyurethane. The difference between the richer French Polishing and water based varnish can clearly be seen...
6. So water based finish it was. In the end I settled on a combination of five coats of satin and the last two coats a mix of 25 : 75 ratio of gloss to satin, just to give the satin finish more of a boost to try and replicate the original satin / gloss finish. Obviously, in-between coats the varnish were left overnight to cure and then keyed with 420 grit sandpaper leaving the following finish...
7. As these speakers only have a lightly painted front chipboard baffle, where the grille covers all of that finish, the painted surface was pretty utilitarian, so with the age related dings I decided to repaint. Once cured, the side panels were masked up and the black centre baffles prep'd for painting. There were few marks and dings here and there, but a little filler and light sanding addressed those issues...
A home spray booth set up in the garage - amazing how far spray dust travels...
Leaving a final matt black finish...
8. Once the baffles were painted and cured, the drive units were installed and the tweeter and bass unit spade contacts were treated with Deoxit...
9. Speakers set up temporarily as near field monitors and briefly fired up to test...
10. And finally the Heybrook stands are levelled and the finished R252's seated...
How do they sound? Ridiculously good for their age and what they have cost me. A total outlay of ?51.99. Broken down to: ?35 for the speakers. ?10 for the Heybrook HB1 stands and ?6.99 for the Walnut Wood Dye. Luckily, I had all other consumables in stock.