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Climbing the mountain. Approaching the summit. (Read 6220 times)
Valiant_ap6
Ex Member



Re: Climbing the mountain. Approaching the summit.
Reply #15 - 11/19/05 at 11:09:00
 
Hiya Michael,
I agree, I think they are more like class AB, the heatsink and etc do not appear to be sufficient to support pure class A. If anyone else out there has any ideas about the Technics gear, please let me know.

Also, thanks for the advice about Rod's subsonic filter, but so far, we have not reached an audio level that has produced unloading effects.

Jake scored a Gemini, variable crossover off eBay, so today we hooked up the Imperial and my (bi-amp) arrays in Tri-amp form, single channel, with a rubbish tip Akai bookshelf doing right channel and man did the Imperial pump. An interesting effect, whilst listening to a song on the 'Ben Lee' - 'Hey You, Yes You' album, with the crossover restricted to 50Htz, and the volume to the mid and treble nulled, the steel shed started to vibrate heavily, with little apparent sound coming from the speakers. The cheeky fellows have mixed a twenty or so Htz tone into the music. Not bad!

Have painted the inner panels for speaker Number 2, and cut the braces to fit, so tomorrow we will be screwing and gluing speaker2 to the 'BATTLESHIP' stage Cheesy.

BTW, Jake has brewed a hot hot chilli beer, man what a drop!

Cheers,

Gary
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Valiant_ap6
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Re: Climbing the mountain. Approaching the summit.
Reply #16 - 12/09/05 at 13:45:57
 
Ohh, that chilly, chilli beer. Yeh, it's still chilly here, well relatively speaking of course. Fired up the new PC tonight, what a ripper, so just letting you know how things are going.

Smiley Wink Cheesy Grin fantastic! One of the Imperials is more or less completed, painted in and out. Awaiting only the fitting of speaker connector, lifting handles (still not sure what to do with this one), and a plaque that will read 'Decware modified Jensen Imperial, by Jake and Gary 2005.'

The second speaker panels have been painted internally and are now ready for screwing and gluing together and finishing externally.

Pics you say....soon. They will be presented in all their glory on my website. Jake will hopefully pop down again before Xmas and we'll put in another few days labour and sorted.

Cheers,

Gazman, Chilli Beer drinker and Imperial builder. Wink
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gexter
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Re: Climbing the mountain. Approaching the summit.
Reply #17 - 12/09/05 at 13:48:42
 
Sounds like heaven all around!   Smiley
thanks for the update.
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Valiant_ap6
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Re: Climbing the mountain. Approaching the summit.
Reply #18 - 02/02/06 at 02:25:04
 
What a difference a Jake makes  :).

My man made it down here last week, and even though he was feeling a little unwell, he put in a big days work, and now we have the second cabinet finished, all bar the filling and painting, which I can do now, at my leisure.

We fired them up of course, in tandem with my arrays, in 3 way active mode. Played only a few songs with the wick turned up, didn't want to hassel the neighbours. Generally just played around with a few tunes. Annoyingly, the music started to cut out a high volume levels, leading me to think my Playmaster amp was clipping, or worse - failing  ??? Then I realised, the CD player (we are using my son's Playstation 1 as a source, don't want to drag my Yamaha outside), was skipping from the vibration. Lesson: Dont use PS 1 for a source, place your CD player on a layer of foam or toweling.

So here they are for the moment, try this link. I will give a full write up on completion. Note the three back braces. The speaker chamber front panel will be enhanced with a nice cut of laminate surrounding the drivers, stained and varnished.

http://members.iinet.net.au/~toffees2/Imperial1.jpg

If the link fails, try my www.

Cheers,

Gary
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gexter
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Re: Climbing the mountain. Approaching the summit.
Reply #19 - 02/02/06 at 04:56:57
 
Nice and the best part almost completly done Smiley

anyway dumb question. are they the standard Imperial size? what are the outside dimensions?

Man the weather looks nice, the weather here is awsome for this time of year in Alberta Canada, but not that nice.

I think I was staring at the sunny picture more than the Imps.
A nice rich dark ale and BBQed steaks came to mind.

ahhh nuts    winter sucks
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Valiant_ap6
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Re: Climbing the mountain. Approaching the summit.
Reply #20 - 02/02/06 at 23:14:30
 
Howdy Guy,
yeah, the weather is nice here, it's like this all year round. Sorry to rub it in. Grin This summer has been our coolest by far, other parts of Oz have been sweltering. Even a bit of rain hasn't gone astray.
The dimensions are as per Imperial, minus a couple of mm to allow for the fact that we used 18mm chip, i.e. the horn dimensions are pretty much to plan, had to use some 22mm chip on the rear of the speaker chamber to bring the horn shape back into spec.
Jake is such a top lad, shame he and my daughter are no longer an item, but that is life, we progress and I'm sure that Jake will. He has good music plans, and now, he will have the speakers to deliver all his ideas in Kodachrome sound. They will probably be shipped up to his pad in Perth around the end of the month, though I'm sure that if they need a baby sitter, if he goes travelling, they will have a nice spot back at my house.
On the subject of 'house', I'm thinking I might grab the 'Housewrecker' plans off Steve, probably go for the 2 x 15" cabinet. The drivers in Jake's Imperials, though some might say are a little underpowered (120 or so watts rms), should be ideal for a loungeroom, and from what I have read, I could probably design the box to shape up as a nice bit of furniture.
These plans by the way are going to go on hold until at least 2007. A trip to Europe (I was born in England), World Cup soccer, and an attempt to manufacture, cast, plastic telescope mirrors is my next venture. Its worth a shot, isn't it.
Wish me success.
Oh, by the way, Jake bought me a plunger Router for Christmas, what a tool it will be, can't wait to fire it up on the new project.

Cheers,

Gary.
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gexter
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Re: Climbing the mountain. Approaching the summit.
Reply #21 - 02/05/06 at 11:44:20
 
Sounds awsome and I wish you success with your venture.

I had a thought for a HWK. I was going to use slat wall and make a base with like a book spinner rack ( the ballbearing one). then I put the acrylic shelf brackets on it ( for books)
My HT room is now also where my home based book business is and I could make a 12" HWK a oversized book spinner rack all in pretty painted slat wall.

That was my piece of furniture idea.

Its just an idea right now. But I will end up using my 12" woofers for a WO32 I think.

I fired up my 12" cardboard Imperial sub the other day in my attached garage and put about 400 watts into it and ran a sweep and it rattled the whole house and is now banned from entering it again.
I keep making changes to it while I am using it as a work top for other projects.

take care Gary
Guy

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« Last Edit: 02/05/06 at 11:46:54 by gexter »  
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