Tannoy rectangular GRF / DC3836?

Tannoys are famous current hogs, even the fairly efficient 215DMT (101dB @ 2.83V) sound best when driven by a big SS amp with a high DF.

I think the data they give is quite exemplary with dispersion patterns and, the rarest of things, actual distortion figures.
Talking dispersion, that is one of the few differences between their pa type drivers like this one and domestic or studio drivers. The pa ones use a 60deg tweet and the others a 90deg one. If I am not mistaken these drivers could be reconed to 3833 spec by Lockwood Audio.
 

cooky1257

Member
2008-09-01 4:01 pm
A bit of misinformation re the 3836:it is exactly the same as the 3833 except for cone colour, one is black and one has a smooth grey finish.
As for Pro vs PA dispersion they are exactly the same, they use the same cone/horn profile and HF driver. Also the 215 are disigned for and proportioned for a standard soffit mounting ie flush into a wall this loads the bass for deepish LF-though agreed it isn't sub.
 

cooky1257

Member
2008-09-01 4:01 pm
Still got your Westlakes? :)

Haha, hello Charles, they're long gone-they were just too big but they did things I've not heard another speaker do(they had their flaws though). Mains are JBL 9800 K2 clones now and too many other speakers around the house(inc Ardens, JBL Array clones, and 3836's). With the launch of the new Ardens I'm about to embark on a little project dropping 3836's into some Tannoy York cabs and maybe also build some system 15's(I really liked my 215 clones but again size was daft)
 

cooky1257

Member
2008-09-01 4:01 pm
Also FWIW the T&S for the 3836 look wrong. Load in the T&S for the 3833 into winISD and you can model the CPA15 box accurately. 85L, 4 ports 50 dia x135mmm give a tuning of 40 hz. try those alleged 3836 figures and you get a larger bass hump. So to add to the 'confusion';
3833GG/3836? Tannoy used to be helpful when it came to giving out info....
Fs 25.5
Qms 1.84
Qes 0.42
Qts 0.34
Vas 528L
 
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cooky1257

Member
2008-09-01 4:01 pm
Also FWIW the T&S for the 3836 look wrong. Load in the T&S for the 3833 into winISD and you can model the CPA15 box accurately. 85L, 4 ports 50 dia x135mmm give a tuning of 40 hz. try those alleged 3836 figures and you get a larger bass hump. So to add to the 'confusion';
3833GG/3836? Tannoy used to be helpful when it came to giving out info....
Fs 25.5
Qms 1.84
Qes 0.42
Qts 0.34
Vas 528L

I've just serviced 6x DC3836 drivers and measured their T&S using DATS V2
Averaged their T&S parameters are ;
Re 5.55 ohms
Qts 0.458
Fs 28hz
VAS 302L

Cooky