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Read the Post in new Window Read the Post in Threaded view  Post #9: Nice Nice Nice by Amir on 2023-04-30 
Browse the content of the threads in new Window  Thread: From GoodSoundClub, with apologies. in Site Support Forum  10 Replies 
I am very glad to see GSB is up , I really miss this forum and in my opinion Goodsoundclub is the only 100% trusted information in the web.Please continue this game ...

Read the Post in new Window Read the Post in Threaded view  Post #1907: One step forward, two steps back by Amir on 2023-03-05 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
The problem of most solutions in high end audio is "one step forward, two steps back". Personally I prefer to hear all information/dynamics of  sound even if the sound is out of control.when I use Isolation Transformer, AC filters (both parallel and ...

Read the Post in new Window Read the Post in Threaded view  Post #1906: I can not measure DC by Amir on 2023-03-04 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
When I use Pure Power then I hear no noise/buzz from Big transformers of Power amplifier.It seemd Pure Power 3000 blocks DC .I have no device for measuring DC voltage of AC line.I did not use any DC blocker before Pure Power and I have no idea about ...

Read the Post in new Window Read the Post in Threaded view  Post #1904: DPOLS vs Good AC Power by Amir on 2023-02-25 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
After more than 20 years of playing audio game I think only two things are real game changers.  DPOLS and Good AC qualityI do not claim I listened to Wilson Speaker in DPOLS but I am sure it was near DPOLS 14 years ago.  I remember for the first time...

Read the Post in new Window Read the Post in Threaded view  Post #1903: AC is like big giant by Amir on 2023-02-22 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
PaulI have listened to some friends systems in their home from morning to night and the AC quality was also variable accross the time but overally my AC quality was worse in comparison by my friends home.In Iran the new year holiday is 21 March - 2 A...

Read the Post in new Window Read the Post in Threaded view  Post #1901: AC shared between 200 apartments by Amir on 2023-02-21 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
If I am working on AC quality because the AC quality in the big building is very very bad.My apartment is in a big complex shared between 200 apartments + 7 big elevator and ...This Building has three phase AC power , in most homes the AC is better b...

Read the Post in new Window Read the Post in Threaded view  Post #1899: Yes Sure by Amir on 2023-02-20 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
[quote user="rowuk"]The whole idea of an earth wire is a path to ground if something fails in the unit. In most countries the (metal) case is attached to this pin on the power connector.It is incredibly stupid (and in many countries illegal) to lift ...

Read the Post in new Window Read the Post in Threaded view  Post #1896: Earth is not necessary for all Audio Equipments by Amir on 2023-02-20 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
[quote user="RF at Ona"]Romy and friends,Reading about the sensitivity of your system to electrical power supply problems reminds me of the days when I used to make my own equipment as much for the learning experience as for the final result.One of t...

Read the Post in new Window Read the Post in Threaded view  Post #1895: Non-linear audio systems by Amir on 2023-02-13 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
RowukI have fully read all pages of this topic (mad mad mad electricity) two times and I know good sound does not come from pure sinewave .I should say I am here (like a student) to learn more and I do not like spread my in-complete BS ideas here.I r...

Read the Post in new Window Read the Post in Threaded view  Post #1892: ABB 100A by Amir on 2023-02-05 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Both ABB 20KVA UPS and Pure Power 3000 are IGBT transformerless UPS and the AC output of them is not perfect Sinusoidal .like Pure Power the ABB is also sensitive to AC quality.ABB 20KVA UPS does not isolate Neutral line but the Pure power 3000 isola...

Read the Post in new Window Read the Post in Threaded view  Post #1889: ABB UPS (PowerValue 31/11T 20 kVA 18,000W) by Amir on 2022-12-29 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Because of Purepower 3000 power was not enough for my high power ss system then I bought an ABB 18KW UPS. Both APC and ABB are popular and my friend used APC and the sound of APC was not good and I choosed ABB to test between W...

Read the Post in new Window Read the Post in Threaded view  Post #5: It sounds interesting by Amir on 2022-11-19 
Browse the content of the threads in new Window  Thread: Macondo 2.0? in Horn-Loaded Speakers  24 Replies 
it sounds interesting  I think most members like this topic. I really enjoy to see there is no end to your high end activity ...

Read the Post in new Window Read the Post in Threaded view  Post #6: I Love GSC, I love Romy by Amir on 2022-11-02 
Browse the content of the threads in new Window  Thread: Reviewing preamps by imbeciles. in Audio For Dummies ™  5 Replies 
[quote user="AudioArchitect"]You should find a life somewhere!You have really big issues with self image, big fragile ego, Dunning Kruger mental illness, and manybof my friends who are medical clinicians read many of your articles here, and they told...

Read the Post in new Window Read the Post in Threaded view  Post #1888: Piller UPS by Amir on 2022-10-24 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Piller UPS generate AC power but use Flywheel storage instead of batteryhttps://library.industrialsolutions.abb.com/publibrary/checkout/DEA-642?TNR=Brochures%7CDEA-642%7CPDF&filename=DEA-642.pdfhttps://www.activepower.com/en-GB...

Read the Post in new Window Read the Post in Threaded view  Post #1886: Energy Storage , Battery vs Flywheels by Amir on 2022-10-22 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Is there any body who used Flywheel power to supply UPS/Inverter?https://www.piller.com/en-GB/183/energy-storage...

Read the Post in new Window Read the Post in Threaded view  Post #1829: High Power UPS in Market by Amir on 2022-08-08 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
If i am not mistaken It seems Most High Power UPS in the market like APC or ABB are not good for high dynamic loads (high crest factor like Music signal) and the load transient response of these UPS is not very good at rated power. APC , ABB and ... ...

Read the Post in new Window Read the Post in Threaded view  Post #1828: Inverter power calculator by Amir on 2022-08-03 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
Rectifier in linear audio systems draw high current at short time for charging psu capacitors. I = Total peak current of an audio system at full load (current draw from wall AC)V = Voltage of main ACP = Total Power of Audio System = ...

Read the Post in new Window Read the Post in Threaded view  Post #1825: AC quality is the biggest challenge in Audio by Amir on 2022-08-01 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
yesterday i had a conversation with an engineer who was in UPS industry in Tehran.he told me they install isolation transformer after UPS for better isolation for medical equipments.he told me most industry UPS manufactures produce Class D inverters ...

Read the Post in new Window Read the Post in Threaded view  Post #1823: Different types of load by Amir on 2022-07-31 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1910 Replies 
---------------------------------------------------   common internet information : it seems UPS/inverters/ACRegenarators react different to different loads .PSU design affect on load characteristics and not all AC regenerators...

Read the Post in new Window Read the Post in Threaded view  Post #17: Bigger by Amir on 2022-07-24 
Browse the content of the threads in new Window  Thread: CEC TL0-X: by no means an in-depth review in Didital Things  17 Replies 
The most important thing in our conversation is accurate defining my idea about better dynamic.I can not describe it with my bad english but i try ."Dynamic" in my mind has many aspects that one of them is feeling of sublime when i look at a very big...

Read the Post in new Window Read the Post in Threaded view  Post #15: Delima by Amir on 2022-07-22 
Browse the content of the threads in new Window  Thread: CEC TL0-X: by no means an in-depth review in Didital Things  17 Replies 
Paul  My knowledge about psu design is zero and i can not comment about how we can design better psu.I know smart engineering solutions has no relation to the idea "bigger is better" but my feeling is better psu gives more dynamics...

Read the Post in new Window Read the Post in Threaded view  Post #13: Better by Amir on 2022-07-21 
Browse the content of the threads in new Window  Thread: CEC TL0-X: by no means an in-depth review in Didital Things  17 Replies 
Paul  Definition of "better" In Musical term is very complex subject and i just guess the better PSU for CEC could improve dynamics.I do not say "better dynamics" mean better in Musical term .The Subject is about improving CEC dynamics.Dynamic is not...

Read the Post in new Window Read the Post in Threaded view  Post #11: CEC TL0 3.0 Dynamics by Amir on 2022-07-20 
Browse the content of the threads in new Window  Thread: CEC TL0-X: by no means an in-depth review in Didital Things  17 Replies 
CEC TL0 3.0 (I have CEC TL0 3.0 model 2018) is my favorite Transport and the question is could it be improved? CEC has very very good dynamics good bass good pace good rhythm good dimension very accurate sound, low jitter and very tr...

Read the Post in new Window Read the Post in Threaded view  Post #4: Romanticism vs Realism (Painting Art History) by Amir on 2022-06-11 
Browse the content of the threads in new Window  Thread: Audio Covid and some homework in Playback Listening  10 Replies 
I am not painter and I do not know about history of Painting Art but this may be interesting to compare "Macondo vs Dannoy" to "Romanticism vs Realism"I think this subject is very interesting to think why Romy changed (after 20 years of non-stop work...

Read the Post in new Window Read the Post in Threaded view  Post #3: Advanced Audio Playback vs Emotional Audio Playback by Amir on 2022-06-02 
Browse the content of the threads in new Window  Thread: Audio Covid and some homework in Playback Listening  10 Replies 
http://www.goodsoundclub.com/Forums/ShowPost.aspx?PageIndex=1&postID=26538#26538 I think This subject is very interesting and i hope other members share their ideas ...

Read the Post in new Window Read the Post in Threaded view  Post #2: Good question by Amir on 2022-05-30 
Browse the content of the threads in new Window  Thread: Audio Covid and some homework in Playback Listening  10 Replies 
I think i have no answer but i think i understand your question.I have a $100 sony cassette player that has no special sound but i like it very much.http://www.goodsoundclub.com/Site_Images/Sony1.jpgthese experiences are rare and i think it is more r...

Read the Post in new Window Read the Post in Threaded view  Post #34: Excuse for offtopic by Amir on 2022-05-25 
Browse the content of the threads in new Window  Thread: Midrange driver suggestions in Horn-Loaded Speakers  34 Replies 
...

Read the Post in new Window Read the Post in Threaded view  Post #169: Digital recording/mixing/mastering by Amir on 2022-05-24 
Browse the content of the threads in new Window  Thread: High Quality Music Server / CD player in Didital Things  169 Replies 
[quote user="Paul S"]Interesting that problems Harley isolated in this case (pits and lands; turntable) were physical/mechanical, utimately "analog", in that sense. I'm glad someone has stayed after it, but not sure how to put this revelation to work...

Read the Post in new Window Read the Post in Threaded view  Post #167: Computer audio does not sound good by Amir on 2022-05-23 
Browse the content of the threads in new Window  Thread: High Quality Music Server / CD player in Didital Things  169 Replies 
it seems the computer audio problem is not bit errors and even correct bit-perfect digital data (from computer) does not give us good sound. the wadax new server (computer) does not use digital processing and it onl...

Read the Post in new Window Read the Post in Threaded view  Post #11: Set Amp/speaker by Amir on 2022-05-17 
Browse the content of the threads in new Window  Thread: Always check power-line polarity. in Audio For Dummies ™  11 Replies 
I have not read this book (the wood effect) and if you have shopping link please sent it to me.I am not sure but It seems even amplifier speaker connection is important for sound.In past I have inverted the signal phase in my DAC and also inverted sp...
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