Fertin project - calling all open baffle experts

[john]

Hi Guys,

Open baffles solved a lot of acoustics problems to my system. I presently owned an Altech 604-hpln, A duplex speaker. They sounded great on an open baffles and with my set amp 300b triode. But they are very wall friendly. They have to be closed to the walls and have to toed in to accurately produced a laid back image.
I have designed a Dough Sax crossover for my Altech 604, The sounds seems not coming from the speakers... Try It! BUT USE SET TUBE AMPS !


Blue LED's really works. I am doing it on my friends old cd players.

Try the green flourescent night bulbs, They also works on any cd players.


Happy tweaking Guys,

John

[Peter Daniel]

Brian,

Did you try it on your CD-94? yet? I also have this player.

Players come and go but this one stays with me since 1989. I was curious, did you do any mods on it?

[planet10]

Brian,

Is the other one tucked in the corner as well? You could build a trapezoidal shape that more closly fits the shape defined by the corner with not much more intrusion and with a less regular baffle shape.

dave

[Brett]

Brian,

Is your baffle really 800x2000? Looks like about 800x1200 to me. Unless your camera is an Escher?

Baffle fans,

This thread having got me intrigued with the idea of trying some baffles (Fertins @$US1500 are out unfortunately) also has me wondering how to place them in a room. Do you set them up like planars, or will they work closer to the front wall? My room has few ways to set them up symmetrically, being wide and open plan. Any tips and suggestions gratefully received.
TIA
Brett

[bcherry]

Originally posted by john
Hi Guys,

Open baffles solved a lot of acoustics problems to my system.

I have designed a Dough Sax crossover for my Altech 604, The sounds seems not coming from the speakers... Try It! BUT USE SET TUBE AMPS !


Blue LED's really works. I am doing it on my friends old cd players.

Try the green flourescent night bulbs, They also works on any cd players.

John

I do have a pr of 300B SET which will go in to this as some point. Got kind of entranced by the 45 pp - my first time hearing the 45.

Do you have details of the Sax crossover?

Brian

[bcherry]

Originally posted by Peter Daniel
Brian,

Did you try it on your CD-94? yet? I also have this player.

Players come and go but this one stays with me since 1989. I was curious, did you do any mods on it?

Hi Peter,

I use it daily. When I first got it from a friend in Vancouver, he said it was soft and veiled so he never used it much. One thing is it was bought from Japan and uses 100V. So I put it on a 100V supply. Also changed the clock, and all the ecaps to Silmics. The Opamps were swapped for 627's. It's not soft and veiled anymore. It's amazing the quality put into this old machines. Just need a little TLC to bloom.

Brian

[bcherry]

Originally posted by planet10
Brian,

Is the other one tucked in the corner as well? You could build a trapezoidal shape that more closly fits the shape defined by the corner with not much more intrusion and with a less regular baffle shape.

dave

Dave,
This is the long wall of my office. There are shelves that you see and then continues open to the windows about 8'. On the other side a similar 'corner is formed by a pr of Tannoy GRF-R.

How would you suggest building that trapezoidal shape. Dimensions?

Great stuff!

Brian

[bcherry]

Originally posted by Brett
Brian,

Is your baffle really 800x2000? Looks like about 800x1200 to me. Unless your camera is an Escher?

Do you set them up like planars, or will they work closer to the front wall? My room has few ways to set them up symmetrically, being wide and open plan. Any tips and suggestions gratefully received.
TIA
Brett

I see your point! I'll have to measure again.

When I put them out into the room, I find they sound good but midbass and lower dynamics are lost. Voice and sax still jump out dynamically but not the lower registers. So far I found the best position tilted back, toed in and close to the wall.

Brian

[bbaker6212]

So that's the Fertin? I've never seen a pic of the front of it.
Is that a whizzer cone? Any close up shots?

I would be up for getting into the group buy if, and that's *IF*, I can sell one of the three pairs of speakers I currently have (Lynn Olson Ariels in cherry veneer and a matching TL subwoofer).

[reverendclark]

Another brave soul.

Alas, we're not going to impress Fertin with our buying power if there are only four of us. Do we want to keep this project among ourselves or expand it to the Joe List and Speaker Asylum as well, just to get more warm bodies?

Peter C