James Tanner Interview

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James Tanner

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James Tanner Interview
« on: 7 Apr 2019, 12:03 pm »
HI Folks,

Interview at Montreal Audio Fest 2019

https://www.youtube.com/watch?v=BLAp9Pal2_U

james

witchdoctor

Re: James Tanner Interview
« Reply #1 on: 7 Apr 2019, 12:18 pm »
For the VP of a company known for amplifiers to say that to stop moving sideways and move forward an active speaker is the way to get there is wonderfully honest.

That one philosophy could move the whole industry forward instead of sideways.  :D

witchdoctor

Re: James Tanner Interview
« Reply #2 on: 7 Apr 2019, 12:21 pm »
"The benefits of a stacked pair is you can move a lot more air because you have that many more drivers to work with" JT

JT, does this mean "more drivers" = "better"?

James Tanner

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Re: James Tanner Interview
« Reply #3 on: 7 Apr 2019, 12:52 pm »
"The benefits of a stacked pair is you can move a lot more air because you have that many more drivers to work with" JT

JT, does this mean "more drivers" = "better"?

Hi Doc

Assuming you know how to integrate those drivers correctly (which is done in the crossover) the answer is yes.

More drivers working properly will lower the distortion substantially. A good example is the tweeter in any speaker system is generally the most stressed driver and adding a second tweeter helps enormously.

james


Rocket_Ronny

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Re: James Tanner Interview
« Reply #4 on: 7 Apr 2019, 06:41 pm »
Or you could just use a monster tweeter like this one.



James, how do you stop phase cancellation by having the two tweeters?

Thanks,

Rocket Ronny

James Tanner

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Re: James Tanner Interview
« Reply #5 on: 7 Apr 2019, 07:52 pm »
Hi Ronny

That's a really detailed answer but basically if you look at the research that has been done on the way the ear/brain mechanism works it does not hear 'comb-filtering' in the way that the measuring microphones do.

The problem with using a larger tweeter is the off-axis frequency response starts to narrow very quickly as you go up in frequency.  The Bryston speaker design is based on as wide and even an 'on and off axis' frequency response as current technology allows.

james

Rocket_Ronny

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Re: James Tanner Interview
« Reply #6 on: 8 Apr 2019, 04:00 am »
Thanks for the answer James. So there are no special tricks to make the 2 tweeters work?

That large tweeter does not suffer from off axis problems as it has a wave guide in a coaxial configuration. It's a PAudio 12" coax. Sounds wonderful.

Rocket Ronny

Carl V

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Re: James Tanner Interview
« Reply #7 on: 8 Apr 2019, 07:57 pm »
Why just two tweeters and not three as Sony has done and others ? And the horizontal Bessel array that Macintosh used, does that also have the same advantages?

James Tanner

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Re: James Tanner Interview
« Reply #8 on: 8 Apr 2019, 08:00 pm »
Why just two tweeters and not three as Sony has done and others ? And the horizontal Bessel array that Macintosh used, does that also have the same advantages?

Hi Carl

On our largest Model T-REX there are 4 tweeters per speaker.





james