Tannoy C-10 Speakers

Another set of speakers showed up this week, Canadian made Tannoy C-10, manufactured under license by API, the same makers of Energy, Mirage, Sound Dynamics, ESM, Image, DB Plus, and probably a few more.

These Tannoy's use a 10 inch woofer pair up with a Vifa dome tweeter, the crossover is a simple first cross on the woofer and a second cross to the tweeter. This pair needed a new 6.8uf Solen cap installed as no signal was getting through to the tweeter. New foam surrounds were also installed as the old set had sen their day.

This is my second pair of Canadian made Tannoy's, I had a pair of Tannoy C-6's a few years back.

I am impressed with this Tannoy offering from API, the bottom end is full and with any Vifa tweeter the upper mid range and high end is crisp and clean.

At 92db sensitivity these Tannoy's run well with a tube amp and sound right at home with the rest of my speaker collection. They are non fatiguing with a great open sound stage. the imaging, although not as precise ad the Tannoy Oxford Gold's is pretty good, API really do make good consumer orientated speakers.

Sound Dynamics 500 Concert Monitors finished.

The Sound Dynamics 500 Concert Monitors were finished this week but not without a bunch of extra delicate work.

I choose to use black foam surrounds as I like the look better than the red foam that were original.

The crossover got two new Solen caps in 3.3uf and 4,7uf value. The build quality is pretty good as there is a brace from the front baffle to the rear baffle.

I was all ready to audition these speakers through the tube amp only to find out the right tweeter was non functional. These horn tweeters with the black face are hard to come by and I did not want to buy a silver one from Ebay as they would not match.

I opted to take the horn tweeter apart and carefully remove the old voice coil. I found a donor voice coil from another pair of tweeters kicking around.

It was a very delicate operation to get the two very thin wires from the new voice coil to attach to the leads on the tweeter. Once I got them soldered I used model glue to attach the new voice coil to the diaphragm.
After several attempts I got the tweeter centered and working.

I really like these speakers when paired to the tube amp, I believe the sensitivity is north of 95db @ 1 watt so they sound nice and full when powered by the tubes.

Aesthetically I think they are gorgeous, the bottom end is full and the compression horn tweeters are spot on.

Sound Dynamics 500 Concert Monitor

These speakers followed me home today, Sound Dynamics 500 Concert Monitors. I am happy to have another pair of these wonderful speakers that match up very well with my tube amp.

I sold off my Sound Dynamics 10S a while back and kind of regretted it since. I am happy to have an updated pair of the same speakers fall back into the rotation.

Of course this pair will get re foamed with black foams instead of the orange originals as I like the look of the black foams. Also new Solen caps will be put in place along with new speaker terminals.

These 500 Concert Monitors are the later version of the 10S, they still have the 10" woofer and horn loaded tweeter, they come in a mirror image set and the cabinet is just a bit smaller.

I really look forward to listening to these speaker again.