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Sweet Room
(16-Aug-2025, 08:49)David A Wrote: @fraha .

Devialet have discontinued the Expert Pro line and replaced it with the Astra. They have long discontinued firmware updates for the Expert Pro line. Since very few manufacturers continue to provide firmware updates for discontinued products and Devialet have not provided any firmware updates for the Expert Pro line for some years I think you can be absolutely certain that there will be no further updates for our Devialet.

Okay, thank you for your assessment. Perhaps someone here in the forum could post a few screenshots showing how best to interpret the results obtained with this external software. Or else a link where it is explained in a way that beginners like me can understand. Thank you.
Rega Planar 3 - Rega ND7 - hoer-wege MM V3 Phonopre - PrimeCoreAudio A7 - Ideon Audio 3R MasterTime Blackstar - NuPrime CDT-10 - Expert Pro220CI - Buchardt E50 - REL Classic99
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I have to ask again for your knowledge on the subject of the Sweet Room, because unfortunately I still don't really understand some things. I just downloaded the ‘House Curve’ tool onto my tablet and used it to take a measurement of the entire frequency response. Whether this makes sense or not doesn't matter for now, I'm just trying to understand the whole topic a little better. It doesn't matter whether the House Curve programme is recommended or not, I just want to make the whole thing easier to understand.
If I now enter this (see below) in this eq.text file and then save it on the sd card and feed it to the Expert, can I switch the whole thing back and forth via the remote control?
In other words, I leave Main as it is and enter my measurements in Alternate so that I can get an impression of what I hear.
The whole explanation on the Devialet help page is absolutely bad for me, it should be described in such a way that even people like me, who have no idea about this matter, can understand it more easily.
What do I do if I no longer want to use this whole SweetRoom?
Just delete the text file on the SD card?
Thanks for your help Smile

// Name for this EQ configuration
"Test1":"EQ",

// Remote indicator
// Allow for the bottom's right button to toggle between main and alternate set of EQs
// Useful in A/B tests or during fine EQ tuning
"REMOTE",

// Parameters for left channel
// Static dB gain for the left channel
"dB_GAIN_L":"0.0", // main gain
"dB_GAIN_L_ALT":"0.0", // alternate gain

// Peak/Notch filters for the left channel (main)
// syntax:"EQ_x_L":[Frequency, dB_gain, Q_factor]
"EQ_1_L":[0.0, 0.0, 0.0],
"EQ_2_L":[0.0, 0.0, 0.0],
"EQ_3_L":[0.0, 0.0, 0.0],
"EQ_4_L":[0.0, 0.0, 0.0],
"EQ_5_L":[0.0, 0.0, 0.0],
"EQ_6_L":[0.0, 0.0, 0.0],
"EQ_7_L":[0.0, 0.0, 0.0],
"EQ_8_L":[0.0, 0.0, 0.0],
"EQ_9_L":[0.0, 0.0, 0.0],

// Peak/Notch filters for the left channel (alternate)
// syntax:"EQ_x_L_ALT":[Frequency, dB_gain, Q_factor]
"EQ_1_L_ALT":[30.0, 4.2, 5.3],
"EQ_2_L_ALT":[40.8, -2.1, 6.0],
"EQ_3_L_ALT":[43.2, -10.0, 5.0],
"EQ_4_L_ALT":[78.0, -3.1, 7.3],
"EQ_5_L_ALT":[98.4, 6.0, 6.0],
"EQ_6_L_ALT":[914.4, -1.7, 3.5],
"EQ_7_L_ALT":[3436.7, 4.2, 1.0],
"EQ_8_L_ALT":[15183.8, -10.0, 0.5],
"EQ_9_L_ALT":[16860.6, -10.0, 1.0],
Rega Planar 3 - Rega ND7 - hoer-wege MM V3 Phonopre - PrimeCoreAudio A7 - Ideon Audio 3R MasterTime Blackstar - NuPrime CDT-10 - Expert Pro220CI - Buchardt E50 - REL Classic99
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Hello,

- there are posts about this tool, somewhere here, also
- if the file is present, it will operate this, otherwise not - so you are right
- there are failure in this option, be careful and control the effects with e.g. REW and a UMIK microphone, best
- with SAM active, only a few filter will work (about first 3, 4 or5)
- it is not recommended, to do a correction above about 100 Hz, it might sound awful
- start with the lowest frequency, a correction will have an effect of all the other frequencies, first the doubled, than mixed
- you should not hope to get a correction with a +dB, as the gaps are mostly from room deleting effects
- benefit of this tool, IMHO, is that it has an effect at all sources like Vinyl or TV, as the filter for streaming e.g. in Roon effects only that
- thats why I correct the main room mode only

example of eq.txt:

// Name for this EQ configuration
"NAME":"EQ",

// Remote indicator
// Allow for the bottom's right button to toggle between main and alternate set of EQs
// Useful in A/B tests or during fine EQ tuning
"REMOTE",

// Parameters for left channel
// Static dB gain for the left channel
"dB_GAIN_L":"0.0", // main gain
"dB_GAIN_L_ALT":"0.0", // alternate gain

// Peak/Notch filters for the left channel (main)
// syntax:"EQ_x_L":[Frequency, dB_gain, Q_factor]
"EQ_1_L":[0.0, 0.0, 0.0],
"EQ_2_L":[0.0, 0.0, 0.0],
"EQ_3_L":[0.0, 0.0, 0.0],
"EQ_4_L":[0.0, 0.0, 0.0],
"EQ_5_L":[0.0, 0.0, 0.0],
"EQ_6_L":[0.0, 0.0, 0.0],
"EQ_7_L":[0.0, 0.0, 0.0],
"EQ_8_L":[0.0, 0.0, 0.0],
"EQ_9_L":[0.0, 0.0, 0.0],

// Peak/Notch filters for the left channel (alternate)
// syntax:"EQ_x_L_ALT":[Frequency, dB_gain, Q_factor]
"EQ_1_L_ALT":[38.0, -6.0, 10.0],
"EQ_2_L_ALT":[0.0, 0.0, 0.0],
"EQ_3_L_ALT":[0.0, 0.0, 0.0],
"EQ_4_L_ALT":[0.0, 0.0, 0.0],
"EQ_5_L_ALT":[0.0, 0.0, 0.0],
"EQ_6_L_ALT":[0.0, 0.0, 0.0],
"EQ_7_L_ALT":[0.0, 0.0, 0.0],
"EQ_8_L_ALT":[0.0, 0.0, 0.0],
"EQ_9_L_ALT":[0.0, 0.0, 0.0],

// Parameters for right channel
// Static dB gain for the right channel
"dB_GAIN_R":"0.0", // main gain
"dB_GAIN_R_ALT":"0.0", // alternate gain

// Peak/Notch filters for the right channel (main)
// syntax:"EQ_x_R":[Frequency, dB_gain, Q_factor]
"EQ_1_R":[0.0, 0.0, 0.0],
"EQ_2_R":[0.0, 0.0, 0.0],
"EQ_3_R":[0.0, 0.0, 0.0],
"EQ_4_R":[0.0, 0.0, 0.0],
"EQ_5_R":[0.0, 0.0, 0.0],
"EQ_6_R":[0.0, 0.0, 0.0],
"EQ_7_R":[0.0, 0.0, 0.0],
"EQ_8_R":[0.0, 0.0, 0.0],
"EQ_9_R":[0.0, 0.0, 0.0],

// Peak/Notch filters for the right channel (alternate)
// syntax:"EQ_x_R_ALT":[Frequency, dB_gain, Q_factor]
"EQ_1_R_ALT":[40.0, -10.0, 10.0],
"EQ_2_R_ALT":[0.0, 0.0, 0.0],
"EQ_3_R_ALT":[0.0, 0.0, 0.0],
"EQ_4_R_ALT":[0.0, 0.0, 0.0],
"EQ_5_R_ALT":[0.0, 0.0, 0.0],
"EQ_6_R_ALT":[0.0, 0.0, 0.0],
"EQ_7_R_ALT":[0.0, 0.0, 0.0],
"EQ_8_R_ALT":[0.0, 0.0, 0.0],
"EQ_9_R_ALT":[0.0, 0.0, 0.0],
220 Expert Pro - KEF-LS50meta - Aavik I-580 - Magico-A3 - Linn Streaming - Linn LP12 Vinyl - DS-Audio - PSaudio PP12 - Acourate room correction via Roon - Qobuz
Germany - Hamburg
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https://help.devialet.com/hc/en-us/artic...Sweet-Room
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(31-Aug-2025, 16:07)listener Wrote: https://help.devialet.com/hc/en-us/artic...Sweet-Room

........ The whole explanation on the Devialet help page is absolutely bad for me, it should be described in such a way that even people like me, who have no idea about this matter, can understand it more easily.
Rega Planar 3 - Rega ND7 - hoer-wege MM V3 Phonopre - PrimeCoreAudio A7 - Ideon Audio 3R MasterTime Blackstar - NuPrime CDT-10 - Expert Pro220CI - Buchardt E50 - REL Classic99
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(16-Aug-2025, 08:49)David A Wrote: @fraha .

Devialet have discontinued the Expert Pro line and replaced it with the Astra. They have long discontinued firmware updates for the Expert Pro line. Since very few manufacturers continue to provide firmware updates for discontinued products and Devialet have not provided any firmware updates for the Expert Pro line for some years I think you can be absolutely certain that there will be no further updates for our Devialet.

Got the information from Devialet that they´re working on an Expert update, they´ll inform by newsletter when it´s ready for download.
Rega Planar 3 - Rega ND7 - hoer-wege MM V3 Phonopre - PrimeCoreAudio A7 - Ideon Audio 3R MasterTime Blackstar - NuPrime CDT-10 - Expert Pro220CI - Buchardt E50 - REL Classic99
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(02-Sep-2025, 15:29)fraha Wrote:
(16-Aug-2025, 08:49)David A Wrote: @fraha .

Devialet have discontinued the Expert Pro line and replaced it with the Astra. They have long discontinued firmware updates for the Expert Pro line. Since very few manufacturers continue to provide firmware updates for discontinued products and Devialet have not provided any firmware updates for the Expert Pro line for some years I think you can be absolutely certain that there will be no further updates for our Devialet.

Got the information from Devialet that they´re working on an Expert update, they´ll inform by newsletter when it´s ready for download.
An update on Expert, WOW!! Hope it comes true.
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(02-Sep-2025, 16:05)G51 Wrote:
(02-Sep-2025, 15:29)fraha Wrote:
(16-Aug-2025, 08:49)David A Wrote: @fraha .

Devialet have discontinued the Expert Pro line and replaced it with the Astra. They have long discontinued firmware updates for the Expert Pro line. Since very few manufacturers continue to provide firmware updates for discontinued products and Devialet have not provided any firmware updates for the Expert Pro line for some years I think you can be absolutely certain that there will be no further updates for our Devialet.

Got the information from Devialet that they´re working on an Expert update, they´ll inform by newsletter when it´s ready for download.
An update on Expert, WOW!! Hope it comes true.
I'll believe it when I see it.   Hard to imagine why Devialet has not been actively communicating any further efforts regarding the Expert Pro line, but then, we are talking about Devialet.   

What Newsletter?   What they once called a Newsletter was nothing more than marketing BS.
Devialet 440 Pro (two 220s)- Oracle CD transport - Kuzma Stabi S/Stogi S turntable - Von Schweikert VR-35 speakers - JPS SC3 SCs - PI Audio power conditioning -
Triode Wire Labs ICs and PCs - Roon on NUC 8i7beh running ROCK
Durham, NC USA
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(02-Sep-2025, 15:29)fraha Wrote: Got the information from Devialet that they´re working on an Expert update, they´ll inform by newsletter when it´s ready for download.

That sounds promising but, like @G51, I hope it comes true and, like @mdconnelly, I'll also believe it when I see it. In other words, I'm not going to hold my breath while I wait.
Roon Nucleus+, Devialet Expert 140 Pro CI, Focal Sopra 2, PS Audio P12, Keces P8 LPS, Uptone Audio EtherREGEN with optical fibre link to my router, Shunyata Alpha NR and Sigma NR power cables, Shunyata Sigma ethernet cables, Shunyata Alpha V2 speaker cables, Grand Prix Audio Monaco rack, RealTRAPS acoustic treatment.

Brisbane, Qld, Australia
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Ok, so now i´m really curious if it will happen. So let´s stay tuned Wink Here´s what i got by mail.

As for your question, while we don’t have a future release date to share just yet, I would like to inform you that our engineering teams are working on next Devialet Expert amplifiers updates release for enthusiast users just like you.

Once future updates are available, we will make your are informed through our Newsletter and official website.
Rega Planar 3 - Rega ND7 - hoer-wege MM V3 Phonopre - PrimeCoreAudio A7 - Ideon Audio 3R MasterTime Blackstar - NuPrime CDT-10 - Expert Pro220CI - Buchardt E50 - REL Classic99
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