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Pics new Troels Double TQWT


Guest atilsley

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Guest atilsley

Started this for Edward last weekend, after receiving the CNC'd Birch Ply and CNC'd solid hardwood baffle. A nice looking speaker...heavy. Looking forward to hearing it, especially with the dual 10 inch Eminence pro drivers out back.

 

Not yet sanded...so ignore any glue signs.

 

To be decided re stain/finish. Would be nice to use two-pack polyurethane spray. The baffle board will come up nicely with the contrasting timber.

 

Xover boards (2 per speaker) to be mounted in the chamber at floor level.

 

http://www.troelsgravesen.dk/JA8008.htm

 

 

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Guest atilsley

Dude, you are too productive, don't you know what DIY means??

Poor is he who works with a negligent hand, But the hand of the diligent makes rich. Proverbs 10:4

 

Go to the ant, O sluggard, Observe her ways and be wise. Proverbs 6:6

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Oh yeah atilsley ... now you are bringing back memories :-)

You sure are moving at a cracking pace if you only started them last weekend!

Looking good so far and the contrasting timbers on the front baffle will look great once you've got the final finish on them.

They will be nice and heavy once finished ... and they will sound sensational once the drivers have had a few hundred hours on them.

I see you are making some cover grills as well ... not many builders have done that for the front drivers ... a nice touch.

Looking forward to seeing the build progress.



Oh ... the link you posted is to the TQWT ... not the DTQWT

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Guest atilsley

Oh yeah atilsley ... now you are bringing back memories :-)

You sure are moving at a cracking pace if you only started them last weekend!

Looking good so far and the contrasting timbers on the front baffle will look great once you've got the final finish on them.

They will be nice and heavy once finished ... and they will sound sensational once the drivers have had a few hundred hours on them.

I see you are making some cover grills as well ... not many builders have done that for the front drivers ... a nice touch.

Looking forward to seeing the build progress.

Oh ... the link you posted is to the TQWT ... not the DTQWT

Thanks for your kind words.

 

Here's an updated URL to Troels speaker

 

http://www.troelsgravesen.dk/JA8008_DTQWT.htm

 

Ooh, the dual 12-inch bass version looks somewhat tempting....!!

 

http://www.troelsgravesen.dk/DTQWT-12.htm

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Thanks for your kind words.

 

Here's an updated URL to Troels speaker

 

http://www.troelsgravesen.dk/JA8008_DTQWT.htm

 

Ooh, the dual 12-inch bass version looks somewhat tempting....!!

 

http://www.troelsgravesen.dk/DTQWT-12.htm

 

The 12" version is a huge speaker :)

 

Have a look at my DTQWT build thread where fellow SNA member BioBrian has also posted pictures of his DTQWT 12" build

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Guest atilsley

The 12" version is a huge speaker :)

 

Have a look at my DTQWT build thread where fellow SNA member BioBrian has also posted pictures of his DTQWT 12" build

Where?

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Thanks...just spent the last hour going through every post on your 11-page thread....very well done...congrats.

 

Thanks atilsley ... I am very happy with how they turned out and especially how they sound.

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Guest atilsley

The wood on the front baffle is birch ply centre section, hardwood Oak on the sides, decorative jarrah piece at the base. The baffle was prepared by the CNC supplier.

Yesterday the tweeter flare was cut...and cabs sanded.

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  • 4 months later...


Hi Bradc

These speakers were my build. I found a detailed pdf file which specified exact measurements for all individual panels for the Mk 2 design. I supplied this to CNC shop near Newcastle who did an excellent job at a fair price.

Member atilsey did a very good job assembling the supplied CNC pieces.

Happy to discuss further details via PM if you are interested in doing your own build.

Edward

Sent from my GT-I9100 using Tapatalk 2

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Hi Bradc

These speakers were my build. I found a detailed pdf file which specified exact measurements for all individual panels for the Mk 2 design. I supplied this to CNC shop near Newcastle who did an excellent job at a fair price.

Member atilsey did a very good job assembling the supplied CNC pieces.

Happy to discuss further details via PM if you are interested in doing your own build.

Edward

Sent from my GT-I9100 using Tapatalk 2

 

You should post up some photo's of your finished speakers.

 

How do you find them?

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They look great. Finished pics would be nice also but when you get done with holdiays, no rush.

 

Here's some photos and info from when I completed the crossovers and installed the drivers and whatnot:

 

 

Thanks for the kind words Edward.

 

They really are superb speakers for the money. It's not exactly a small investment, but I shudder to think what you'd pay for a commercially-produced speaker of this calibre.

 

The components are all very high quality indeed.

 

A few happy-snaps of the build (hope you don't mind Edward!)

 

A few nice touches on the crossovers, including dowelling of the HEAVY wax coil inductors and the use of brass screws. Not that you see the assembled crossovers, of course... but the screws DO match the tagstrips  ;) ). The dowelling is pretty important IMHO as the crossovers are mounted vertically. Dowels are are also used to locate the toroidal inductor:

 

dowel1_zps16ccf127.jpg

 

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Crossover boards ready for installation: 

 

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crossover01_zps3c1eade2.jpg

 

The optional upgrade SEAS T35 Tweeters fitted to the waveguides:

 

tweeter1_zps81dff3eb.jpg

 

Perfect fit!

 

tweeterwooferinterference1_zpsfec0de80.j

 

The tweeter wiring is secured with a cable tie mount with 3M VHB adhesive strips, and the woofer wiring is cable tied to the basket. This prevents any stress upon the driver wiring tabs if the wires are yanked in future.

 

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Very nice Dayton binding posts and binding post mounting plates installed:

 

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Aaaaaand... ready for some frequency sweeps, test tones, white and pink noise, and listening evaluation.

 

The finished cabinets are a credit to atilsley and are beautifully finished - they are pieces of furniture in their own right, not just another pair of speakers.

 

Edward should be congratulated for his tenacity in seeing this project through from go to whoa. I hope these speakers bring you much joy!  :)

 

completedspeakers_zpsa15999b9.jpg

 
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Thanks for the kind words Edward.

They really are superb speakers for the money. It's not exactly a small investment, but I shudder to think what you'd pay for a commercially-produced speaker of this calibre.

The components are all very high quality indeed.

Great work Pete ...

Have you had a chance to listen to them after 200/300 hours on them?

If you've only listened to them with test tones, sweeps and music when you finished building them then you should try and have a listen to them again ... it will be a night and day difference ... they sound pretty average when first fired up ... with a few hundred hours on them they will be a totally different speaker ...

If you think they were good when you first fired them up ... well ... :) :)

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Great work Pete ...Have you had a chance to listen to them after 200/300 hours on them?If you've only listened to them with test tones, sweeps and music when you finished building them then you should try and have a listen to them again ... it will be a night and day difference ... they sound pretty average when first fired up ... with a few hundred hours on them they will be a totally different speaker ...If you think they were good when you first fired them up ... well ... :) :)

I haven't yet, but I hope to have a good listen some day in future when I'm in Edward's neck of the woods.

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Hi

I thought I would put together some words on the build process and a description of the sound to accompany my photos of my DTQWT Mk 2 with T35 speakers. Hopefully it will assist anyone contemplating how this DIY build can be completed through drawing on specialists sourced locally (Sydney) and through SNA.

1. Design selection: I originally chose the DTQWT design as it was valve friendly, full range and a one box design with no complexity of integrating subwoofers. The detailed SNA threads by Buzz lightyear, Sierra and BioBrian gave me confidence in the quality of the design and insight into some of the tricky parts of the build.

2. Cabinet materials: all speaker panels were CNC from Birch plywood, internal and side panels 21mm and front/rear baffles 32mm (laminate of 2 * 16mm). Front baffle included hardwood cheeks to allow edge profile. I had detailed pdf plans created by a previous DTQWT builder that Troel's website previously linked (Google is our friend here). The CNC provider was happy to work with plans which I had marked up with variations for my build. After a couple of weeks I received the CNC pieces.

3. Cabinet build: SNA member atilsley glued together all the CNC pieces, trimmed the tricky tweeter waveguide and inserted all damping materials. I was confident in his craftsmanship and his ability to solve complex build problems from all his bespoke horn speaker builds posted on SNA and he certainly delivered. Example of finished cabinet

4. Cabinet staining: cabinets were then delivered to a French polisher for a Jarrah stain and a satin lacquer.

5. Crossover construction/driver install: SNA member pete_mac competed this stage and I was impressed by his blend of technical expertise and passion for the sound. Crossovers were well constructed and drivers were correctly fitted. Additional pics of this stage

6. Completed speakers: Some overall and close up pics of the finalised speakers

In a follow up post I will describe the sound of the speakers.

Thanks for reading

Edward

Sent from my iPad using Tapatalk HD

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