'LGT' Construction Diary

[ShinOBIWAN]

Winter must have been harsh this year, first the table saw fence and now one of the routers:



The depth adjust had got jammed(probably from the winter months), I did manage to free it up but it subsequently fell to apart and I can't get it to fit back together properly I had grown quite fond of it but ultimately no real loss as its a couple of years old and only a cheap £30 effort - I've had my monies worth out of it.

Made a start now and will post a photo's tomorrow.

[ShinOBIWAN]

Originally posted by m0tion

What are your thoughts on the xover you will be using for these speakers or have you decided to cross that bridge when you come to it?

Just gonna wing it this time, EQ fixes all sorts of design oversights

Give Thunau's Frequency Allocator ago. It was the best overall solution I found for the PCXO ie. easy to use, sounds great and I had no hardware or glitching issues including drop outs and underruns. Delay was still a problem though but if you use just the IIR filter section then delay is down to 10ms and worked perfectly well with even video and gaming.

Another good one was Acourate but the learning curve is probably the worst of all the methods I've tried, its the type of program that does get easier the more you use it. Extremely powerful though, perhaps *the* most powerful solution, at least as far as I've seen.

DEQX is still the tidiest solution overall though. I don't have mine anymore though but may or may not buy another... will have to see.

[ShinOBIWAN]

Anyone know a supplier of felt?

Ideally looking for upto 9mm thickness and in black. I've seen a few DIY projects using this stuff so I'm guessing its out there somewhere but after searching on Google and also ebay I've come up with nothing apart from the usual thin craft variety.

[Bob Barkto]

Try industrial suppliers.
We have McMaster/Carr over here . http://www.mcmaster.com
There is likely something similar in the UK.

Be prepared for sticker shock, it's pricey stuff.

9mm is pretty thick, are you using it inside the box or outside?

[AR2]

If I may, I would like to offer a few ideas. If you didn't already purchased the speakers, and if you are still open for different choices for the mid, PHL makes extraordinary mids and they are in 100's dB sensitivity which is breeze in matching with ribbon. Also with crossover you could always make passive between mid and tweeter and active on the bottom if you are looking to simplify. Matching very sensitive top with insensitive bottom is pain, I have been dealing with one but it is not impossible. Active in this case certainly helps. I have passive between mid and tweeter that I could turn on or off with switch in the back. I am running all the time active, but sometimes when I want to test various amps I turn it on.
Best of luck, we are all looking for another masterpiece!
AR2

[ShinOBIWAN]

Here some bracing I prepared earlier. Note the rather messy tweeter cabinet, the thing fell apart just after gluing


More bracing this time with roundovers:


Progress on the mid/bass portions of the cabinets:







All in all not bad for a few hours work. At this rate I'll have them finished by the end of the week

[wigginjs]

I don't see you using an clamps. What kind of clamps do you use?

[ShinOBIWAN]

Originally posted by m0tion
I don't see you using an clamps. What kind of clamps do you use?

I leave the glue to set a little and then clamp/apply pressure overnight because it would take forever with this sort of work otherwise.

[edjosh23]

Shin,

Is there a reason why you don't have the braces interlocking?

Thanks,

Josh

[ShinOBIWAN]

Originally posted by edjosh23
Shin,

Is there a reason why you don't have the braces interlocking?

Thanks,

Josh

The question of what extra will it give me vs. time. For me its not worth the extra hassle but that's not to say it isn't superior because in absolute terms its the better method.

Come to the UKdiy meet in July and check how dead the cabinets are or aren't.