Sennheiser Q&A: HDV 820 Digital Amplifier
Oct 22, 2017 at 8:53 PM Post #47 of 173
I went portable when moved to HK and had young kids. Now they are older and I have more room I am thinking about getting a desktop. I love my HD650 which had it since first released and thinking the HD800S and HDV820 amp. I would like to use my AK380 as source for this....thinking balanced out cable from AK380 to amp (would this bypass AK380 DAC?).

what source do you (and all other owners) use?
 
Oct 28, 2017 at 1:13 PM Post #48 of 173
I went portable when moved to HK and had young kids. Now they are older and I have more room I am thinking about getting a desktop. I love my HD650 which had it since first released and thinking the HD800S and HDV820 amp. I would like to use my AK380 as source for this....thinking balanced out cable from AK380 to amp (would this bypass AK380 DAC?).

what source do you (and all other owners) use?

The digital out from the AK380 should connect to the HDV 820 digital input so that the AK380 DAC is bypassed.

This would be my set-up with the HDV 820:

Synology DS116 NAS > Intel NUC7i7BNH Mini PC (Roon Core) > Auralic Aries Femto > Cardas Clear USB > Senn HDV 820 > Senn HD 800 S

Enjoy your system!
 
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Oct 29, 2017 at 8:51 PM Post #49 of 173
The digital out from the AK380 should connect to the HDV 820 digital input so that the AK380 DAC is bypassed.

This would be my set-up with the HDV 820:

Synology DS116 NAS > Intel NUC7i7BNH Mini PC (Roon Core) > Auralic Aries Femto > Cardas Clear USB > Senn HDV 820 > Senn HD 800 S

Enjoy your system!

Thanks vo_obgyn
 
Oct 30, 2017 at 3:43 PM Post #50 of 173
Oct 30, 2017 at 4:20 PM Post #51 of 173
I went portable when moved to HK and had young kids. Now they are older and I have more room I am thinking about getting a desktop. I love my HD650 which had it since first released and thinking the HD800S and HDV820 amp. I would like to use my AK380 as source for this....thinking balanced out cable from AK380 to amp (would this bypass AK380 DAC?).

what source do you (and all other owners) use?
You can use the AK380 this way. You may want to ask an AK expert though... typically, Digital Audio Players (DAP) with balanced output are using their built-in Digital to Analog Converters (DAC) and internal amplifiers before outputting an analog signal, while a line-out traditionally comes from the DAC section and bypasses most of the amplification and volume attenuation circuitry, but both of those methods result in an analog signal that the HDV 820 can accommodate using the correct analog input. You could also use a USB on-the-go cable to digitally connect the player of your DAP and use the HDV 820’s built-in DAC.
 
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Oct 30, 2017 at 4:24 PM Post #52 of 173
My review of the new Sennheiser HDV 820 amp/DAC is live! I don't usually expect much from headphone manufacturers when it comes to amps, but I gotta say, this thing is damn impressive. I break down the amp, DAC and more after the jump:

http://enjoythemusic.com/magazine/equipment/1117/Sennheiser_HDV820_DAC_Headamp_Review.htm

Thanks for the review link. I was wondering if the HDV 820 is a worthy upgade to its predecessor the HDVD 800 or not, in your opinion. I would imagine that the DAC section is improved, but what about the amp section? Thanks in advance.
 
Oct 30, 2017 at 4:56 PM Post #53 of 173
Thanks for the review link. I was wondering if the HDV 820 is a worthy upgade to its predecessor the HDVD 800 or not, in your opinion. I would imagine that the DAC section is improved, but what about the amp section? Thanks in advance.

I have only ever heard the HDVD 800 through its own DAC, so it would be difficult to give you a really meaningful A vs. B on the amplifier sections. That being said, I find it extremely difficult to believe that the sonic differences between the two can be squarely blamed on the digital sections. I wish I had both so I could give you a more direct answer, but my best guess having heard both is that the HDV 820's amp section is probably a good bit better than its predecessor's.
 
Oct 30, 2017 at 8:31 PM Post #55 of 173
You can use the AK380 this way. You may want to ask an AK expert though... typically, Digital Audio Players (DAP) with balanced output are using their built-in Digital to Analog Converters (DAC) and internal amplifiers before outputting an analog signal, while a line-out traditionally comes from the DAC section and bypasses most of the amplification and volume attenuation circuitry, but both of those methods result in an analog signal that the HDV 820 can accommodate using the correct analog input. You could also use a USB on-the-go cable to digitally connect the player of your DAP and use the HDV 820’s built-in DAC.

Thanks - I will do some more research,
 
Oct 30, 2017 at 8:57 PM Post #56 of 173
Can the HDV 820 properly drive electrostatic headphones like Stax SR-009 or Focal Utopia?

The Focal Utopia is a dynamic driver, not electrostatic. They should have outstanding synergy with the HDV 820, based on the sound signatures of the two pieces.

The Stax SR-009, on the other hand, is electrostatic, and therefore is incompatible with the HDV 820.
 
Oct 31, 2017 at 7:47 AM Post #57 of 173
I have only ever heard the HDVD 800 through its own DAC, so it would be difficult to give you a really meaningful A vs. B on the amplifier sections. That being said, I find it extremely difficult to believe that the sonic differences between the two can be squarely blamed on the digital sections. I wish I had both so I could give you a more direct answer, but my best guess having heard both is that the HDV 820's amp section is probably a good bit better than its predecessor's.

Thanks for the follow-up!
 
Nov 6, 2017 at 12:18 AM Post #58 of 173
Can someone please help me. I'm soooo confused. I don't understand how to do all the conversions and calculations.

If you have both the HDV820 and HD800S what should the gain setting be set at? There are 5 options but I'm not sure which one it's supposed to be set at.
 
Nov 6, 2017 at 12:34 AM Post #59 of 173
Can someone please help me. I'm soooo confused. I don't understand how to do all the conversions and calculations.

If you have both the HDV820 and HD800S what should the gain setting be set at? There are 5 options but I'm not sure which one it's supposed to be set at.

If you're just using the Senns with it, I'd go with a medium setting. If you find that you're running into the noise floor, turn it down one. If you need more driving power, turn it up one.
 
Nov 12, 2017 at 12:20 AM Post #60 of 173
Just to clarify my previous post:
Sennheiser website says "The heart of the new HDV 820 is a formidable ESS SABRE32 DAC".
However, SABRE32 family has four different series as follows:

PRO Series
ES9038PRO, ES9028PRO, ES9026PRO

Reference
SABRE9018AQ2M, ES9018K2M, ES9018, ES9012, ES9008

Ultra
ES9016K2M, ES9016

Premier
ES9010K2M, SABRE9006A, ES9023

Please clarify which chip(s) HDV820 has.
I hope HDV820 has dual ES9038PRO configuration.
good job HDV820 HAS SABRE ES9018
 
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