Focal Utopia General Discussion
Jan 30, 2018 at 5:45 PM Post #6,196 of 16,559

jlbrach

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utopia is one of the most efficient HP's available,no problem driving them....the HE1000v2 is relatively easy to drive but not as easy as the utopia....the LCD-4 and Abyss Phi are tougher to drive and do need serious amping...I havent listened to the susvara other than a couple of minutes at a show but they are even more difficult to drive....
 
Jan 31, 2018 at 12:39 AM Post #6,197 of 16,559

Mahalarp

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utopia is one of the most efficient HP's available,no problem driving them....the HE1000v2 is relatively easy to drive but not as easy as the utopia....the LCD-4 and Abyss Phi are tougher to drive and do need serious amping...I havent listened to the susvara other than a couple of minutes at a show but they are even more difficult to drive....

Susvara is a bit (very a bit) harder to drive than HE1000. Anyway if the amplifier matched, it is really Susvara (very sweet vocal sound). But finally I found that Utopia is not that much different and also can use it to listen to other genres much more better than Susvara.
 
Jan 31, 2018 at 3:14 AM Post #6,198 of 16,559

x RELIC x

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Susvara is a bit (very a bit) harder to drive than HE1000.
Anyway if the amplifier matched, it is really Susvara (very sweet vocal sound). But finally I found that Utopia is not that much different and also can use it to listen to other genres much more better than Susvara.

What? The Susvara is actually quite a bit more difficult to drive than the HE1000. The Susvara sensitivity is 83dB SPL/mW (not very sensitive at all) and the HE1000 is 90dB SPL/mW (sensitive enough for most audio gear). Every 3dB increase/decrease in SPL represents double/half the power required. The Susvara essentially requires a little more than 4x the power of the HE1000 to reach the same volume.

The Utopia is 104dB SPL/mW and is 7x easier to drive than the Susvara from a power perspective at the same SPL.
 
Jan 31, 2018 at 3:49 AM Post #6,199 of 16,559
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Actually the difference from 104 dB/mW to 83 is 125x the power...2^7 is 128x. The 2x per 3dB rule of thumb is an approximation that accumulates error as you keep adding 3 dB; the exact calculation here, based on logarithms, is 10 ^ 2.1, which results in 125.89 (rounded). Remember that power factors multiply/divide while dB add/subtract (as dB are exponents in the multiplication).

So yes, it goes without saying there is an absolutely insane difference in the power requirements for Susvara over the Utopia. The Susvara is closer to the AKG K1000 than it is to a normal headphone.
 
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Jan 31, 2018 at 4:18 AM Post #6,200 of 16,559

x RELIC x

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Actually the difference from 104 dB/mW to 83 is 125x the power...2^7 is 128x. The 2x per 3dB rule of thumb is an approximation that accumulates error as you keep adding 3 dB; the exact calculation here, based on logarithms, is 10 ^ 2.1, which results in 125.89 (rounded). Remember that power factors multiply/divide while dB add/subtract (as dB are exponents in the multiplication).

So yes, it goes without saying there is an absolutely insane difference in the power requirements for Susvara over the Utopia. The Susvara is closer to the AKG K1000 than it is to a normal headphone.

Ah, yes, thanks for the correction! :)
 
Feb 2, 2018 at 5:14 AM Post #6,201 of 16,559

Jozurr

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One more vote for the Danacable Lazuli Reference with the Dave - The cable is exceptional and makes the Utopias sound great! I ended up getting the Lazuli for my Code-X as well.
 
Feb 2, 2018 at 3:53 PM Post #6,202 of 16,559

qrtas

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Thanks for the report. What's the downside of the Clear pads on the Utopia? Obviously there's the aesthetics issues, which most people won't care about. There is a definite downside to using the Elear pads on the Utopia (google it, if you care), so there is probably a downside to the Clear pads too.

The alternative is the Clear pads are better, and the Focal will eventually update the Utopia with better pads.

Another alternative is that the Clear pads are as good, but just offer an alternative sound signature.

I just saw this and I was wondering if you tried the Clear with Utopia’s pads. I have the clear and I am very curious to see if how the sound changes.
 
Feb 2, 2018 at 4:05 PM Post #6,203 of 16,559
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I just saw this and I was wondering if you tried the Clear with Utopia’s pads. I have the clear and I am very curious to see if how the sound changes.

Come to our mini mod meet tomorrow and try it for yourself!
 
The Source AV TSAVJason Stay updated on The Source AV at their sponsor profile on Head-Fi.
 
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Feb 2, 2018 at 6:12 PM Post #6,205 of 16,559
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Thanks for the invitation:) I wish I could, I see you are located in California.

Yup 75F degrees sunny as can be not a cloud in the sky with a great ocean breeze today. Tomorrow is expected to be even nicer
 
The Source AV TSAVJason Stay updated on The Source AV at their sponsor profile on Head-Fi.
 
https://www.facebook.com./pages/The-Source-AV-Design-Group/153623164648713 http://www.twitter.com/TheSourceAV http://www.instagram.com/Thesourceavdesign http://thesourceav.com/ Products@TheSourceAV.com
Feb 2, 2018 at 6:55 PM Post #6,206 of 16,559

Allanmarcus

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Yup 75F degrees sunny as can be not a cloud in the sky with a great ocean breeze today. Tomorrow is expected to be even nicer
Wait, are you saying the forecast for tomorrow, at your headphone meet, is "Clear" and therefore you are in "Utopia"?
 
Feb 3, 2018 at 7:01 PM Post #6,210 of 16,559

wldcohso

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Thank you for this awesome response. I got very lucky that someone actually owns both cables. Outstanding. Leaning towards the Lazuli R because whilst I would like a Dave it is just a bit too rich for my blood at the moment and I am quite happy with the H2 performance, versatility and portability.

Curious, why two?
 

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