georgehifi Posted October 19, 2018 Posted October 19, 2018 https://www.stereophile.com/content/tidal-audio-akira-loudspeaker Glad I'm an ESL man. Cheers George
eltech Posted October 19, 2018 Posted October 19, 2018 Looks like they cheaped out on those two small inductors.
eltech Posted October 19, 2018 Posted October 19, 2018 After seeing the anechoic measurements I was disapointed that the manufacturer couldnt come up with a design that gives a flat frequency response in the 7-9Khz region. All the box bracing in the world isnt going to help the 5dB bump in the sibilance region. I expect this speaker will sound a bit bright. A notch filter would have fixed it. For the money, I expect much more than this!
Guest Posted October 19, 2018 Posted October 19, 2018 16 minutes ago, eltech said: After seeing the anechoic measurements I was disapointed that the manufacturer couldnt come up with a design that gives a flat frequency response in the 7-9Khz region. All the box bracing in the world isnt going to help the 5dB bump in the sibilance region. I expect this speaker will sound a bit bright. A notch filter would have fixed it. For the money, I expect much more than this! Where can I audition/purchase your speakers? 4
georgehifi Posted October 19, 2018 Author Posted October 19, 2018 (edited) + - 2.5db anechoic, looks pretty good to me from 200hz-20khz. Even in JA's room it looks almost as good. Cheers George Edited October 19, 2018 by georgehifi
eltech Posted October 19, 2018 Posted October 19, 2018 32 minutes ago, Marc said: Where can I audition/purchase your speakers? I'll let you know when they are ready. I'd love your opinion. 1
eltech Posted October 19, 2018 Posted October 19, 2018 16 minutes ago, georgehifi said: + - 2.5db anechoic, George, those are 5dB steps
eltech Posted October 19, 2018 Posted October 19, 2018 (edited) I dont believe in being unnessecarily cruel. Its a silly way to be. You must consider the price of these speakers. They are stated in the article to cost USD $215,000/pair. At that price a notch filter should have been employed to get a flatter frequency response in the high frequencies. I've seen many speakers with flatter response that dont cost this sort of money. I would never be bothered to comment on it if the speaker cost under $20,000, but it costs USD $215,000/pair, and this is the context of my comment. I can and will say something nice about them. The CSD waterfall shows that the cabinet has very low resonance. That is a very good thing! Edited October 19, 2018 by eltech
georgehifi Posted October 19, 2018 Author Posted October 19, 2018 (edited) 27 minutes ago, eltech said: George, those are 5dB steps That's right there's a swing of +2.5db and - 2.5db from 200hz to 20khz Wilson Alexia MkII is -5db +2.5 200 to 20k Cheers George And Wilson Alex is -8db +2.5db 200 to 20k Edited October 19, 2018 by georgehifi
eltech Posted October 19, 2018 Posted October 19, 2018 48 minutes ago, georgehifi said: Even in JA's room it looks almost as good. I also noticed this. He must have a good listening room
Sub Sonic Posted October 19, 2018 Posted October 19, 2018 14 hours ago, eltech said: After seeing the anechoic measurements It would be enlightening to see off axis responses and power response, perhaps a better idea might be gained of how the speakers actually sound. Cheers, SS
Sub Sonic Posted October 19, 2018 Posted October 19, 2018 16 hours ago, eltech said: Looks like they cheaped out on those two small inductors. Just look at them as a series RL circuit, probably of deliberate values
afa Posted October 20, 2018 Posted October 20, 2018 any decent speaker designer would know that you mount passive radiators in an opposed fashion to cancel out vibrations in the bottom end, but then i guess the marketing and design department had the say over the engineering department, its very common in the Hi Fi (?) world
davewantsmoore Posted November 9, 2018 Posted November 9, 2018 On 19/10/2018 at 1:27 PM, eltech said: I was disapointed that the manufacturer couldnt come up with a design that gives a flat frequency response in the 7-9Khz region I wouldn't read too much into one chart. Look at figure5, for example.
davewantsmoore Posted November 9, 2018 Posted November 9, 2018 On 20/10/2018 at 9:38 PM, afa said: any decent speaker designer would know that you mount passive radiators in an opposed fashion to cancel out vibrations in the bottom end, but then i guess the marketing and design department had the say over the engineering department, its very common in the Hi Fi (?) world It is very common ... but in this case there were no vibrations present in the cabinet.
davewantsmoore Posted November 9, 2018 Posted November 9, 2018 On 20/10/2018 at 4:22 AM, Sub Sonic said: It would be enlightening to see off axis responses and power response, perhaps a better idea might be gained of how the speakers actually sound. Knock yourself out.... Fig 3/4/5 https://www.stereophile.com/content/tidal-audio-akira-loudspeaker-measurements 1
eltech Posted November 10, 2018 Posted November 10, 2018 1 hour ago, davewantsmoore said: I wouldn't read too much into one chart. Look at figure5, for example. I was just being hyper critical due to the price of it. I'm sure it's a very good speaker.
davewantsmoore Posted November 10, 2018 Posted November 10, 2018 11 hours ago, eltech said: I was just being hyper critical due to the price of it. I'm sure it's a very good speaker. Ahhh. You forgot the /s I agree, the price is bananas - but, if there's a market?!....
Ihearmusic Posted November 10, 2018 Posted November 10, 2018 You guys make it sound like you could do a much better job. How about you put your recourse to good use and start building!? 2
cafe67 Posted November 11, 2018 Posted November 11, 2018 (edited) On 19 October 2018 at 10:27 AM, eltech said: After seeing the anechoic measurements I was disapointed that the manufacturer couldnt come up with a design that gives a flat frequency response in the 7-9Khz region. All the box bracing in the world isnt going to help the 5dB bump in the sibilance region. I expect this speaker will sound a bit bright. A notch filter would have fixed it. For the money, I expect much more than this! Let's face the only people who could afford these speakers , are older males whose hearing is already shot, so they probably need to sound brighter for their intended market Edited November 11, 2018 by cafe67 2
Jones99 Posted November 12, 2018 Posted November 12, 2018 Not all old .....at least I think I am still classed as middle aged......Tidal certainly make some lovely Engineered speakers a must to audition if looking at this level . Whether you like them or not well that's depends on your tastes. The below is a measurement from a speaker designed well over 20 years ago and measured by Stereophile. Makes you wonder if we really have progressed with speakers at all or as mentioned perhaps measurements else where are more important. Or maybe a ruler flat speaker response is not ideal for most? Certainly some food for thought but as always the best method is listen and make your own mind up if looking to hand over the hard earned.
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