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Read the Post in new Window Read the Post in Threaded view  Post #3: To have RIAA is good, in a way.... by Romy the Cat on 2009-02-22 
Browse the content of the threads in new Window  Thread: Soundsmith’s analog ideas. in Analog Playback  11 Replies 
[quote user="drdna"]This sounds like an interesting idea, especially since it eliminates the RIAA components. Eliminating components is usually a good thing. However, at the "entry level" price of $8,000, I don't think I will be buying one any time s...

Read the Post in new Window Read the Post in Threaded view  Post #3: To have RIAA is good, in a way.... by Romy the Cat on 2009-02-22 
Browse the content of the threads in new Window  Thread: Soundsmith’s analog ideas. in Analog Playback  11 Replies 
[quote user="drdna"]This sounds like an interesting idea, especially since it eliminates the RIAA components. Eliminating components is usually a good thing. However, at the "entry level" price of $8,000, I don't think I will be buying one any time s...

Read the Post in new Window Read the Post in Threaded view  Post #3: The karaoke-level RIAA? by Romy the Cat on 2011-09-08 
Browse the content of the threads in new Window  Thread: Dubbing LP to digital. in Didital Things  3 Replies 
[quote user="outopos"]Hi Romy,I am new to your site. I have read some of your postings (including other sites) with much gusto.For the digital LP recording, I am (was) tempted to do the same, but given the fact that I have absolutely no personal ...

Read the Post in new Window Read the Post in Threaded view  Post #5: The self-tunable auto-RIAA? by Romy the Cat on 2009-07-09 
Browse the content of the threads in new Window  Thread: AMR PH-77: just another phonostage or more? in Analog Playback  11 Replies 
Thinking further about what AMR PH-77 is trying to do some ideas come to me… At my photography life time when we use to shot on color reversal films we included a gray scale.  I personally never was huge fun of this practice as the E6 process ...

Read the Post in new Window Read the Post in Threaded view  Post #213: Fighting with RIAA by N-set on 2012-07-16 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
I'm precisely fighting with dialing-in the RIAA....I tried to follow (parts of) Romy's description earlier in the thread, but the anti-RIAA method and test LP give me a huge difference, much bigger than 0.2dB (rather 10dB or so):what was +/- flat usi...

Read the Post in new Window Read the Post in Threaded view  Post #276: Copyright air-cap RIAA... by rogier on 2015-06-15 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
hopefully building an air-cap phonostage doesn't get prohibited.., i 've built one too, this time with a different tube and values but the same principle (in Miller-capacity)With kind regards, rogier...

Read the Post in new Window Read the Post in Threaded view  Post #309: EAR834p how does RIAA feedback work? by AlexBerger on 2021-03-08 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
Hi Romy,I read about EAR834p modifications in number of forums. And I never found any explanation how does RIAA feedback work.Only from you I heard about Miller capacity that used in this RIAA.I tried to do my calculations and as I understand the Mil...

Read the Post in new Window Read the Post in Threaded view  Post #20: Re: Any IC-base RIAA corrector.... by Thorsten on 2006-06-17 
Browse the content of the threads in new Window  Thread: I need a “second-type” phonostage. in Analog Playback  38 Replies 
Roman,[quote user="Romy the Cat"]Tm I ma glad that your “Manhattan project” is over as I was a little scared….[/quote] As you well know, it ain't over till the Fat Lady sings.The "Manhatten Project" will be back.[quote user="Romy the Cat"]This phono...

Read the Post in new Window Read the Post in Threaded view  Post #1: The LCR RIAA correctors by Romy the Cat on 2007-07-11 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
Keith Cooper mentioned today the AllnicAudio’s 1500 phonostage in the Cessaro thread… http://www.allnicaudio.com/E/e_pdt_ampli_H-1500%20II%20SE.html I know the AllnicAudio, I use their tube sockets, and they are very good.  The AllnicAudio use...

Read the Post in new Window Read the Post in Threaded view  Post #25: Computer RIAA by perrew on 2010-03-12 
Browse the content of the threads in new Window  Thread: My feelings about new exciting audio products in Audio Discussions  25 Replies 
Heres an interesting take on RIAA http://www.channld.com/pure-vinyl.html...

Read the Post in new Window Read the Post in Threaded view  Post #2: No RIAA by outopos on 2011-09-07 
Browse the content of the threads in new Window  Thread: Dubbing LP to digital. in Didital Things  3 Replies 
Hi Romy,I am new to your site. I have read some of your postings (including other sites) with much gusto.For the digital LP recording, I am (was) tempted to do the same, but given the fact that I have absolutely no personal experience in digital audi...

Read the Post in new Window Read the Post in Threaded view  Post #18: Any IC-base RIAA corrector should cost $30, with no expiations. by Thorsten on 2006-06-17 
Browse the content of the threads in new Window  Thread: I need a “second-type” phonostage. in Analog Playback  38 Replies 
Roman,> Any IC-base RIAA corrector should cost $30, with no expiations.Now now.... My "Analogue Addicts Phono Stage" is Op-Amp based and requires at current OEM bugetary pricing in 1000pc lots of $12.25 each. Add Tinfoil & Polystyrene Capacito...

Read the Post in new Window Read the Post in Threaded view  Post #2: Silk Audio LCR 10kOm RIAA EQ module by Romy the Cat on 2007-08-13 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
a Hong Kong-based company DIY Hifi Supply is selling RIAA EQ modules, the first modulesthat I have seen at 10kOm. It is something that Thorsten did not do commercially… but if the silks sound good then it might be VERY interesting. Is anyone kno...

Read the Post in new Window Read the Post in Threaded view  Post #58: Inductive RIAA link by Romy the Cat on 2010-01-04 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
BTW, the hoodlums who are interested about Inductive RIAA might fins this link useful: http://digilander.libero.it/paeng/inductive_riaa.htm The Cat...

Read the Post in new Window Read the Post in Threaded view  Post #1: RIAA pole two = 501,12 Hz by Kunashirsky on 2011-06-29 
Browse the content of the threads in new Window  Thread: RIAA pole two = 501,12 Hz in Playback Listening  0 Replies 
I am the example of the vinyl tube RIAA correctors explain torsion phenomena in the audio. But apparently the standard way of thinking of engineers do not allow them to understand the obvious ! Then Thurs ochastota second pole has an optimum at 501.1...

Read the Post in new Window Read the Post in Threaded view  Post #19: Re: Any IC-base RIAA corrector.... by Romy the Cat on 2006-06-17 
Browse the content of the threads in new Window  Thread: I need a “second-type” phonostage. in Analog Playback  38 Replies 
Tm I ma glad that your “Manhattan project” is over as I was a little scared…. Well, I always thought that I have an open mind and I would not mind to try it. Unfortunately I do not do SS as I afraid of it electrically… This phonostage of yours, is ...

Read the Post in new Window Read the Post in Threaded view  Post #1: A truly cool solution for RIAA re-tuning…. by Romy the Cat on 2007-08-29 
Browse the content of the threads in new Window  Thread: A truly cool solution for RIAA re-tuning…. in Analog Playback  2 Replies 
All records, particularly from good period, were recorded at different equalization. Even the records that were RIAA marked were in fact WAY off…How to deal with it? Running a feedback to high impedance, in the way how it made in EAR 384P, permited u...

Read the Post in new Window Read the Post in Threaded view  Post #21: ...comparing of different RIAA methods. by Romy the Cat on 2009-10-16 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
[quote user="perrew"]Romy,one thing that interest me is you use an active RIAA and the Allnic is passive circuit if I understood things?[/quote] Perrew, Among the none-commercial, home-made correctors here is my evolution of phonostages. ...

Read the Post in new Window Read the Post in Threaded view  Post #41: Passive RIAA filters are good for full blown preamps… by Romy the Cat on 2009-11-09 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
Paul, I do not think that “before or after RIAA losses” requirement has any merit as no matter what kind type RIAA filter is being used it always will lose around 20dB. I do not think also that there is a “safest path” or “reasonably affordable”....

Read the Post in new Window Read the Post in Threaded view  Post #1: Swell New RIAA-Only Phonostage, Only $60k!!! by Paul S on 2010-07-05 
Browse the content of the threads in new Window  Thread: Swell New RIAA-Only Phonostage, Only $60k!!! in Analog Playback  7 Replies 
It can take me months to pan randomly through a given issue of Stereophile, but Fremer's review of the SS Vitus MO-P201 phonostage caught my attention this month.Mike actually clearly states that this 2-box item is better than the Boulder 2008.  Well...

Read the Post in new Window Read the Post in Threaded view  Post #52: EC8020/437A/3A-167M -price-tag vs. performance vs availability by twogoodears on 2009-11-12 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
[quote user="Romy the Cat"] I never had a lot of trouble with high transconductance tubes. I use the EC8020 a lot. Stefano, you might look into this EC8020. I never seen it but just looked into the datasheet and it looks very interesting tube and i...

Read the Post in new Window Read the Post in Threaded view  Post #49: The running away RIAA? I do not think so. by Romy the Cat on 2009-11-11 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
[quote user="Thomas Mayer"] I never had a lot of trouble with high transconductance tubes. I use the EC8020 a lot. [/quote] Stefano, you might look into this EC8020. I never seen it but just looked into the datasheet and it looks very interest...

Read the Post in new Window Read the Post in Threaded view  Post #61: Used Tubes by audiosix on 2013-12-26 
Browse the content of the threads in new Window  Thread: Where are our good phonostages? in Analog Playback  61 Replies 
[quote user="Paul S"] http://app.audiogon.com/listings/omnigon-full-function-tube-preamplifier-phonostageLooks like a serious effort that has been kicking around for a while.What tubes are used? Are they twin triode, like 12AX7 or - more likely - 692...

Read the Post in new Window Read the Post in Threaded view  Post #270: More on that by N-set on 2013-04-02 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
[quote user="Paul S"]But why would you consider brass connectors because of 95% of boutique RCA if the idea is to wind up with the best signal path?[/quote]Of course not because of that! The ideal would be the connector I've shown but made with pure ...

Read the Post in new Window Read the Post in Threaded view  Post #213: Fighting with RIAA by N-set on 2012-07-16 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
I'm precisely fighting with dialing-in the RIAA....I tried to follow (parts of) Romy's description earlier in the thread, but the anti-RIAA method and test LP give me a huge difference, much bigger than 0.2dB (rather 10dB or so):what was +/- flat usi...

Read the Post in new Window Read the Post in Threaded view  Post #48: Gain calculation and LCR advantage by Thomas Mayer on 2009-11-11 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
Paul,The gain of my phono stage has the RIAA loss factored in. Without the RIAA loss counted, the gain would be about 66-68 dB. [quote user="Paul S"]I have never used the 417 or 437, but I have heard plenty of whining from folks who do.  They often p...

Read the Post in new Window Read the Post in Threaded view  Post #2: Not Much Info by Paul S on 2013-04-09 
Browse the content of the threads in new Window  Thread: EMIA Phonostage. in Analog Playback  1 Replies 
Looks like another case where clean AC wall power is demanded and supposed.  Since they use triode output, I wonder if the "gain path" of the pentode is "wired triode", as well, or if they just want the extra gain to scrub in the upcoming RIAA; or ma...

Read the Post in new Window Read the Post in Threaded view  Post #44: The stunning sound of the phonocorrector. by Romy the Cat on 2008-06-04 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
[quote user="Brian Clark"] Whereas I do. deParavicini's worked on designs in Japan over several years and became familiar with the  research going on there in the Seventies which culminated in identifying the HD decay-spectrum as a key indicator...

Read the Post in new Window Read the Post in Threaded view  Post #47: As Though A Point Were Being Made... by Paul S on 2009-11-10 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
...future subjunctive...Romy, I am not sure that the first part of your response actually addresses the first part of what I was talking about.  So, I +/- repeat myself:As an extreme example, if I see a claim of "80 dB gain" for a phono stage, it is ...

Read the Post in new Window Read the Post in Threaded view  Post #212: The self-serving calibrations. by Romy the Cat on 2012-07-16 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
n-set, I think the precisions of calibrations that are trying to accomplish is absolutely irrelevant and in a way self-serving. Individual cartridges have huge frequency deviation and the way how individual LPs were cut has huge frequency deviations....
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