Transmission line speakers I have never seen before. Need help to figure every thing out

[bazza31]

Hello im Barry. I have just bought a pair of tl speakers. The crossovers I need to figure out which wires correctly go to which driver. It's s design iv never seen before. Hopefully the pictures will help

 

[Galu]

So, Bazza, are we to take it that you have no any idea of the make and model of this transmission line speaker?

A clear plan view of the crossover board without all the wires obscuring the components may be helpful.

 

[bazza31]

The drivers are B139 (sp1044) dynamic/celestion H5 1035 Seas H086 and coles 4001. I will get the crossover's out and give you a better idea of what is going on.

 

[bazza31]

So, Bazza, are we to take it that you have no any idea of the make and model of this transmission line speaker?

Hello fell'a!...yup I know didly squat

 

[vinylkid58]

Must be DIY. The internet thinks they are Cambridge Audio r50's, but they are obviously not. If you're lucky, the crossover may be similar.

jeff

 

[bazza31]

Yup jeff thay are deffo diy but never seen before. Also the ohm's on all the drivers are different and the wiring was in series, parallel some connected to each other, just mad

 

[bazza31]

Hold fire, let me grab a snack and share the crossover with you. .10mins

 

[planet10]

The internet thinks they are Cambridge Audio r50's, but they are obviously not.

aka the Pro9 TL (V2).

https://www.diyaudio.com/community/threads/chris-rogers-pro9-tl-drawing.66848/#post-754536

http://p10hifi.net/planet10/TLS/downloads/Pro9TL-1.pdf
http://p10hifi.net/planet10/TLS/downloads/Pro9TL-Mk2.pdf

While there are decided similarities, the 3 drivers above the B139 are all different but for the Coles.

dave

 

[bazza31]

The mess

 

[Galu]

If you're lucky, the crossover may be similar [to the Cambridge Audio R50].

Here's the R50 type crossover for reference:

The top one is the same as in Dave's Pro9TL pdf.

 

[bazza31]

More.

aka the Pro9 TL (V2).

https://www.diyaudio.com/community/threads/chris-rogers-pro9-tl-drawing.66848/#post-754536

http://p10hifi.net/planet10/TLS/downloads/Pro9TL-1.pdf
http://p10hifi.net/planet10/TLS/downloads/Pro9TL-Mk2.pdf

While there are decided similarities, the 3 drivers above the B139 are all different but for the Coles.

dave

Yes it is odd. The 3 drivers on top have their own chamber. The crossover has its own chamber too?.

 

[freddi]

I briefly had ESS Transtatics = sled them very cheap

 

[bazza31]

Here's the R50 crossover for reference:

View attachment 1309468

I have the pro9 tl's also. I have never opened them to see inside nor do I know where the crossover is for comparison. Should I take a look?

 

[planet10]

Given the tested sticker and the familiar board copper side layout, it must have been someone’s kit with premade XOs.

What are the box’’s external dimensions? What is it made of? Pictures?

Parts might be worth more than the whole.

dave

 

[bazza31]

The speakers have been built very well. I should rewire from scratch? 1 thing I noticed is that the coles driver in the box has 1 wire for positive and 2 connected to the negative if that helps

 

[bazza31]

Given the tested sticker and the familiar board copper side layout, it must have been someone’s kit with premade XOs.

What are the box’’s external dimensions? What is it made of? Pictures?

Parts might be worth more than the whole.

dave

So its mdf 3/4in I think with extra wood in corner. The finished wood laminate is beautiful very good indeed. Size is H915mm W340mm D450mm and weight is allot and more!

 

[Boden]

The Rogers TLS and PRO9 seem to be mixed up here. The system on display looks like like the Rogers TLS with B110, T27 and Coles 4001. The PRO9 had the Peerless KO40MRF as midrange and a Audax or Seas tweeter. Also the x/o PCB looks different from the PRO9, which had a third order electric LP, if my memory does not fool me. The vent was on the very top of the baffle, not halfway.

 

[Galu]

Should I take a look?

I don't think that would help. The crossover in your unidentified TL is not identical to that of the Pro9 - yours only has 3 inductors compared to 5.

 

[Galu]

it must have been someone’s kit with premade XOs.

Possibly a Wilmslow Audio TL kit, but I can't find one of this vintage on the net.

@bazza31 What is the date on the crossover? Your photos are rather blurred.

 

[bazza31]

My pro9 r50 copies and the other speakers that we or I am trying to figure out