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  #261  
Old 07-20-2017, 03:50 PM
LeoCasa LeoCasa is offline
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Originally Posted by Mattia View Post
LeoCasa,
I know I may ask an obvious question, but don't you perhaps have the "Auto turn off LCD" (don't remember the exact name used by Accuphase) option activated?

I don't know about the 48, but in the 58 is in one of the last pages on the configuration menu.


Thanks for this advice. That may well be the answer! I'll check as soon as I get home !
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  #262  
Old 07-20-2017, 09:52 PM
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The configuration screen according to a DG48 chart --

"This screen lets you make environment and function settings, such as selecting the Voicing/Equalizer modes, controlling the sampling frequency and gain for the analog inputs, setting output levels and left/right balance, adjusting screen brightness, turning the display on and off, etc."

Best Sir,

Bob
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  #263  
Old 07-23-2017, 11:30 AM
LeoCasa LeoCasa is offline
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Quote:
Originally Posted by vintage_tube View Post
The configuration screen according to a DG48 chart --



"This screen lets you make environment and function settings, such as selecting the Voicing/Equalizer modes, controlling the sampling frequency and gain for the analog inputs, setting output levels and left/right balance, adjusting screen brightness, turning the display on and off, etc."



Best Sir,



Bob


Thanks to both. Now I have managed to get the screen lit up permanently...! Great. However, I was expecting the screen to display a curve or something that showed an analysis of the music playing.
However there is nothing displayed.
If I press Configuration, I can see the Configuration panel. But if I press Voicing, Equalizer or Analyzer I seem to get only to the screens for the tests with the microphone.
In other words, is this correct that these screens only display something in test mode, not in normal music listening conditions?
Thanks for any help.
Olivier
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  #264  
Old 07-25-2017, 10:10 AM
meltemi meltemi is offline
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Quote:
Originally Posted by LeoCasa View Post
In other words, is this correct that these screens only display something in test mode, not in normal music listening conditions?
Thanks for any help.
Olivier
It's not correct.

But I'd advise you to have a thorough look into the DG-48 user manual (in other words: RTFM).

If you did not get the user manual with your machine, reask the seller for it or ask an Accuphase representative to provide you one.
Unfortunately I cannot help you out, since I swapped my DG-48 for the DG-58 and did not scan/archive the DG-48 user manual.

Martin
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  #265  
Old 08-05-2017, 08:51 AM
George Flush George Flush is offline
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Hi!

Just have a couple of questions, I've been searching but couldn't find anything about this.

I'm thinking on having an active 3-way Accuphase system, with 3 Accuphase A-36 amplifiers.

Of course, I need the DF-65 to act as a crossover, but:

- Does DF-65 work as a preamplifier once configured as a crossover?

- Can frequency response be equalized with DF-65? I'll treat the room but also want the last 10% of greatness only achieved by digital correction, goal is to have B&K curve frequency response at listening position. Do I need to add DG-58 to achieve this?

- Do I need to add an analog preamplifier to the setup (this would be a deal breaker for price reasons)?

- I have a custom PC, fanless with SSD drives and a TEAC blu-ray reader, and use it for music listening and home theater, I don't need a CD/SACD player, how do I connect those units to the PC? SPDIF PCI-E card? From what I understand, HS-LINK (RJ-45 ethernet connectors) only works with Accuphase products, please correct me if I'm wrong.

I need something like a DEQX HDP5 (crossover, preamp, ad/da, eq all in one) but want to have all Accuphase for maximum sound quality/synergy.

Would be glad if someone can help me with those doubts, I'm confused as hell.
Thanks!
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  #266  
Old 08-05-2017, 01:03 PM
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Masterlu Masterlu is online now
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George... Welcome to AA!
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  #267  
Old 08-06-2017, 03:04 PM
frisqo frisqo is online now
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Quote:
Originally Posted by George Flush View Post
Hi!

Just have a couple of questions, I've been searching but couldn't find anything about this.

I'm thinking on having an active 3-way Accuphase system, with 3 Accuphase A-36 amplifiers.

Of course, I need the DF-65 to act as a crossover, but:

- Does DF-65 work as a preamplifier once configured as a crossover?

- Can frequency response be equalized with DF-65? I'll treat the room but also want the last 10% of greatness only achieved by digital correction, goal is to have B&K curve frequency response at listening position. Do I need to add DG-58 to achieve this?

- Do I need to add an analog preamplifier to the setup (this would be a deal breaker for price reasons)?

- I have a custom PC, fanless with SSD drives and a TEAC blu-ray reader, and use it for music listening and home theater, I don't need a CD/SACD player, how do I connect those units to the PC? SPDIF PCI-E card? From what I understand, HS-LINK (RJ-45 ethernet connectors) only works with Accuphase products, please correct me if I'm wrong.

I need something like a DEQX HDP5 (crossover, preamp, ad/da, eq all in one) but want to have all Accuphase for maximum sound quality/synergy.

Would be glad if someone can help me with those doubts, I'm confused as hell.
Thanks!
you should contact Ceslovas .. is an expert in this area (activ systems)
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  #268  
Old 08-10-2017, 03:11 PM
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Mattia Mattia is offline
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George Flush,

Quote:
- Does DF-65 work as a preamplifier once configured as a crossover?
You cannot control volume in DF-65, nor with DG-58 (directly and easily, only by going on menu and set level).
That is a sad reality, and in my opinion an omission, for these units.

If you only have digital sources you can connect the system all in digital like this:

DP-xyz --->(digital) DG-58 --->(digital) DF-65 and then in analog to amplifiers.
The level will be set in digital by the source, and if done well there will be no particular problems.


Quote:
- Can frequency response be equalized with DF-65? I'll treat the room but also want the last 10% of greatness only achieved by digital correction, goal is to have B&K curve frequency response at listening position. Do I need to add DG-58 to achieve this?
The DF unit only acts as an active crossover. For corrections, you need a DG unit.
And in my experience regarding my DG-58, a "last 10%" scenario is the ideal field for the DG-58 unit. Don't ask him to correct badly problematic systems, for those cases, more technological advanced solution like Dirac will work better. But in an already correct and good system, a DG-58 can surely give that last mile of greatness.


Quote:
- Do I need to add an analog preamplifier to the setup (this would be a deal breaker for price reasons)?
I was on the same boat, and for a while I set the level with my old DP-75. It worked well and I didn't experience any particular quality problem with my usual 16/44 material at my usual SPL.
But then the upgrade bug got me and I acquired a C-2420 that I basically use *just to set volume*.


Quote:
how do I connect those units to the PC? SPDIF PCI-E card? From what I understand, HS-LINK (RJ-45 ethernet connectors) only works with Accuphase
Spdif. HSLINK is only between Accuphase units.

And that, in my opinion, is another slight problem of the DG-58: only 1 coax, 1 optical (and 1 HS Link) input.
(If you use for example a DC-901 as a source, you can put the DG-58 in a digital out-in loop, and then all digital inputs of the 901 -and there are many- will be processed by DG-58.)
Another alternative would be to purchase an old Accuphase digital preamplifier, DC-300 or DC-330: you'll get many inputs, a digital loop for DG-58, and a very nice digital volume control. Then you can output a digital signal to DF-65.
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Last edited by Mattia; 08-10-2017 at 03:28 PM.
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  #269  
Old 08-14-2017, 10:10 PM
George Flush George Flush is offline
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Quote:
Originally Posted by Mattia View Post
George Flush,



You cannot control volume in DF-65, nor with DG-58 (directly and easily, only by going on menu and set level).
That is a sad reality, and in my opinion an omission, for these units.

If you only have digital sources you can connect the system all in digital like this:

DP-xyz --->(digital) DG-58 --->(digital) DF-65 and then in analog to amplifiers.
The level will be set in digital by the source, and if done well there will be no particular problems.




The DF unit only acts as an active crossover. For corrections, you need a DG unit.
And in my experience regarding my DG-58, a "last 10%" scenario is the ideal field for the DG-58 unit. Don't ask him to correct badly problematic systems, for those cases, more technological advanced solution like Dirac will work better. But in an already correct and good system, a DG-58 can surely give that last mile of greatness.




I was on the same boat, and for a while I set the level with my old DP-75. It worked well and I didn't experience any particular quality problem with my usual 16/44 material at my usual SPL.
But then the upgrade bug got me and I acquired a C-2420 that I basically use *just to set volume*.




Spdif. HSLINK is only between Accuphase units.

And that, in my opinion, is another slight problem of the DG-58: only 1 coax, 1 optical (and 1 HS Link) input.
(If you use for example a DC-901 as a source, you can put the DG-58 in a digital out-in loop, and then all digital inputs of the 901 -and there are many- will be processed by DG-58.)
Another alternative would be to purchase an old Accuphase digital preamplifier, DC-300 or DC-330: you'll get many inputs, a digital loop for DG-58, and a very nice digital volume control. Then you can output a digital signal to DF-65.
A million thanks!!!

It would be quite complicated and expensive (very expensive) to put all this stuff together...I'll buy the DEQX unit.

It's just plain sad, Accuphase probably has the highest quality products in the world, especially their class A amplifiers.
They could use a higher power processor for DSP or even put another one in DF-65 for room correction and omit the DG-58, and also add a digital volume control to the unit, then give you the option of buying a second DF-65 for twice the processing power and better sound quality (like Linn does with the Katalyst Klimax Exakt crossovers), but one digital active crossover without volume control, another unit for room correction and a separate analog preamplifier (all current Accuphase preamps are analog only) makes no sense because everything is done in the digital domain (no logical place to add an analog preamp) and adds a ton of money to the equation...I just don't get it, so close and so far at the same time.
The DEQX HDP-5 has everything in one box, including an ethernet connection and Roon support...it's the best move for me right now.

Thanks for clarifying this, hope you have a nice day.

EDIT: They also use ESS9018S chips in DF-65...seems that they designed it for ESS9018, then the new chips come up and instead of changing the design to put the top of the line ESS9038 PRO, they just swapped the chip for the ESS9018S (same pins and compatible with ESS9018 sockets)...it's just sad.

Last edited by George Flush; 08-15-2017 at 11:37 AM.
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  #270  
Old 08-16-2017, 09:00 AM
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Mattia Mattia is offline
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In my humble opinion, the DG/DF units could benefit from a complete redesign regarding functions.

But, for example in 2014-2015, the combined sales ratio of those units was only 4.9% of the total Accuphase sales, so I think Accuphase is not so inclined to spend too much r&d money on them.

On the other end, a revised product (for example with a very good digital volume, more inputs, ets) would likely boost sales of for example DG units, but what about the consequent reduced preamplifiers sales?
In 2014-2015 the preamplifiers sales ratio was 20.9%... so I don't think Accuphase would risk loosing that by improving DG functionality...
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