Differences between Tannoy 8 inch units

David Pinnegar · 19th November 2011, 03:36 PM

Hi!

I'm wondering if anyone knows anything about the differences between the Tannoy 8 inch dual concentric speaker units as used in the DC1000/2000/3000 and the Tannoy 609/611?

The Tannoy i8 appears to be the same design but uses a paper cone.

The crossovers are slightly different but do the units themselves really sound different?

Best wishes

David P

fatmarley · 19th November 2011, 07:05 PM

Paper sounds different to plastic. I'd prefer a good paper driver myself, but you get good and bad designs with any material.

The Art of Speaker Design, Part II

David Pinnegar · 19th November 2011, 07:25 PM

Yes - thanks - of course I prefer paper - but it's really about the interaction between tweeter and woofer cone at around the crossover frequency that becomes interesting - and my feeling is that the DC2000 is flatter than the 611: is this on account of different tweeter horn or the crossover . . . ?

Many thanks

Best wishes

David P

David Pinnegar · 21st November 2011, 01:00 AM

These units use different tweeter geometries but does anyone know whether it's these or the crossovers that make the most difference?

Best wishes

David P

Mario Pankov · 23rd November 2011, 09:31 AM

I bought a pair of 8 inchers from the DC1000, cone is black polypropylene with a rose-golden tweeter waveguide, double magnet. I didn`t like their sound in a bass reflex cab with a Chebyshev filter made by a friend. Chassis is stamped steel.

David Pinnegar · 23rd November 2011, 10:24 AM

Hi!

Thanks. Yes - the differences between the DC2000 and 611 speakers are subtle but profound - the DC2000 has a very smooth flat-ish unexciting sound which I suspect is accurate whilst the 611 has an excitement to the music particularly on trumpets. Applying a signal to the tweeters the DC2000 sounds slightly nasal whilst the 611 is sweeter, contrary to the expectation of the overall sound of the speaker. The DC2000 has a set of near conic section waveguides whilst the 611 is which I beleive to be commonly known as the tulip. Is this more governing than the different crossovers used?

Best wishes

David P

19th November 2011, 03:36 PM	#1
David Pinnegar diyAudio Member Join Date: Nov 2010	Differences between Tannoy 8 inch units Hi! I'm wondering if anyone knows anything about the differences between the Tannoy 8 inch dual concentric speaker units as used in the DC1000/2000/3000 and the Tannoy 609/611? The Tannoy i8 appears to be the same design but uses a paper cone. The crossovers are slightly different but do the units themselves really sound different? Best wishes David P

23rd November 2011, 09:31 AM	#5
Mario Pankov diyAudio Member Join Date: Aug 2007	I bought a pair of 8 inchers from the DC1000, cone is black polypropylene with a rose-golden tweeter waveguide, double magnet. I didn`t like their sound in a bass reflex cab with a Chebyshev filter made by a friend. Chassis is stamped steel. __________________ www.mariopankov.com

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19th November 2011, 07:05 PM	#2
fatmarley diyAudio Member Join Date: Aug 2003 Location: Cheltenham	Paper sounds different to plastic. I'd prefer a good paper driver myself, but you get good and bad designs with any material. The Art of Speaker Design, Part II

19th November 2011, 07:25 PM	#3
David Pinnegar diyAudio Member Join Date: Nov 2010	Yes - thanks - of course I prefer paper - but it's really about the interaction between tweeter and woofer cone at around the crossover frequency that becomes interesting - and my feeling is that the DC2000 is flatter than the 611: is this on account of different tweeter horn or the crossover . . . ? Many thanks Best wishes David P

21st November 2011, 01:00 AM	#4
David Pinnegar diyAudio Member Join Date: Nov 2010	These units use different tweeter geometries but does anyone know whether it's these or the crossovers that make the most difference? Best wishes David P

23rd November 2011, 10:24 AM	#6
David Pinnegar diyAudio Member Join Date: Nov 2010	Hi! Thanks. Yes - the differences between the DC2000 and 611 speakers are subtle but profound - the DC2000 has a very smooth flat-ish unexciting sound which I suspect is accurate whilst the 611 has an excitement to the music particularly on trumpets. Applying a signal to the tweeters the DC2000 sounds slightly nasal whilst the 611 is sweeter, contrary to the expectation of the overall sound of the speaker. The DC2000 has a set of near conic section waveguides whilst the 611 is which I beleive to be commonly known as the tulip. Is this more governing than the different crossovers used? Best wishes David P

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