PART 2 here
PART 3 here
I only have reasonably basic tools available, so no fancy routing of baffles or anything like that.
Let's start at the back of the cabinets. Normally, Keilidhs have 6 terminals on the back panel to facilitate connecting up to 3 pairs of cables from 3 amps. They're an integral part of the crossover circuit board and, once the external collars are screwed onto the posts, hold the crossover into the cabinet:
|Original Keilidh Crossover (from www.costrruirehifi.net)|
I also decided that I wanted to make conversion of Frankenkeilidhs from passive to active and back again as easily as possible, as I have a vague idea that I'd like to play with some low cost DSP crossovers at some point. So the approach is just to fit a set of terminals into the existing holes in the back panel of the Keilidhs and connect them directly to each of the speaker drivers, thus avoiding the need to house a crossover inside the cabinet, and facilitate active conversion without opening the boxes up again.
ebay again and some nice looking binding posts were sourced at £1.95 a pair. They claim to be gold plated and look the part. I guess we'll know in a year or two's time how true that is. Anyway, they're long, substantial and provide the option of bare wire or 4mm banana plug connections.
|One binding post stripped down to its parts, ready to fit|
For speaker cables, I'm using some high purity 42 strand copper cable from Maplin - its left over from a 50m drum that was bought when putting the garden speakers in place. Do I cost it in or not?
|Tining up the speaker cables ready for soldering to the binding posts|
|Threaded through to the outside|
|Fit the plastic red or black washer first (for easier identification of + and - terminals), then the clear washer|
|Then push the binding posts into place and tighten the nuts from the inside of the cabinet|
|Here all 6 posts are completed on the inside of the cabinet|
|And from the outside - looking very professional, even if I do say so myself!|