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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I will be making another experiment tomorrow and will try to install a new dedicated power line for audio. I say “another experiment” as the dedicated line that I installed as soon I move into the hour did not sound good, I have no idea why.
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I was so glad to stumble on to this site. It's amazing!I've been a Bidat owner since 1995 and I had the latest mods done by John Wright a year ago. Romy, it takes several months for those blackgate caps to fully calm down, but you are in for a t...
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[quote user="beachbum"]Did so cause i was still using my BPT for everything but my amps. I had a hum and high pitch buzz from my speakers. Replacing the power cord feeding my amps was the cure.[/quote]There was some mild 60 cycle hum which was elimin...
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[quote user="Beav"] What I have is a subwoofer made by ACI; no information on the amplifier used other than it uses a two prong power cord, no ground. When I hooked it up to the APS 2000 I got a very loud pitched hum. Taking if off the 2000 an...
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As some may know from previous posts, I have been working on horns for the Vitavox S2 as well as other drivers (I am photo-documenting the process, as it is somewhat unusual, possibly to be posted here at a later date). Last night I was able to test ...
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The Audio Fedirection guy got a new camera? I bet he did. Anyhow, the pictures are courtesy of Audio Fedirection blog.
http://audiofederation.com/blog/archives/271
As I said above - I was as queries to have a preview of that ML3 amp as I was wonder...
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In the post below I made a few mistakes.
1) The new Placete gain stage use analog PS,
not switching and I mistakably said. The power cord come with computer style plastic
box in the middle and I though it is the power supply. In reality the plas...
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I feel that shielding of dedicated power lines is kind of arguable
subject. First of it I do not know if it is necessary. What will you shield
from? The main point is what kind shielding
and how it affects sound. It might be shielding
that is i...
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Eventually I got electricity-wise what I had in my old listening room. It turned out that the last straw that I was missing was Lavry ADC that was connected to ground of my remote switcher.
http://www.goodsoundclub.com/LatestPosts.aspx?...
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[quote user="Romy the Cat"] One of the things that solicited me to try the APS unit was the assurance of the APS guy (Richard) that what I run ASP unit from internal battery + regeneration vs. the plugged in wall + regeneration ….I should hear no dif...
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[quote
user="steverino"] Later after the PP battery was replaced hum disappeared
forever.
[/quote]
Interesting. What made you
to replace the battery? The reasons I ask is a because an old buttery would not
be different for powers supply then ...
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[quote user="OracleAV"] Are you
kidding? What is the purpose for any of us audiophile spending thousands
of dollars for dedicated AC circuits, for clean power through AC
regeneration? It is to have improve the quality of the sound - be
it thro...
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[quote user="drdna"] I am quite sure it is a ground issue, as it is noise coming from the loudspeakers regardless of source or volume. Lifting the grounds on the amplifiers… eliminates the problem. [/quote] If it so them there is no need to contact t...
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This site never meant to be a popular and was more meant to be as my personal diary but since the site become quite popular (today was a third day in a row as the over 300 discreet visitors visited the site per day) then I would like to maintain it a...
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Bracket these comments with my general thrill over finally being able to play music from my computer.(I did sell a pretty mint Evo VIII in part to get into this world.)At first the Lavry DA-11 sounded a little "Pro", electronic, mechanical to my ears...
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It's quite a marvel from what I can tell now. The overall sound is somewhat on the darker side but the preamp is still breaking in (although I gave it 30h benchtop burn in with the frybaby track). I also suppose it reveals the Dannoy and the room int...
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[quote user="Romy the Cat"]
Vance wrote:
The Shunyata cord PLUS the Hyrdra conditioner represent the single best upgrades to my system aside from John's mods. I was skeptical about power cords and conditioners, but I'm a ...
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In his RMAF the Federated Mike post some comments about his use of ML3:
http://www.audiofederation.com/hifiing/2008/RMAF2008/report/1500/floor_9/#audio_federation
Even though his comments from my point of view have “issuers” but Mike’s comments sti...
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In this section I will brief cover operational parameters of Purepower 2000 regenerator. I do not have a lot of fun to write this section but I feel that for sake of objectivity it is necessary. Also the next section – the sonic observations - might ...
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Yep, Stitch, your satire is fine even though I do not agree that every serious Audiophile needs a psychotherapist. This is a difference between serious audio individual and just a person who twinkling with audio. If person has specific objective and ...
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I would place my bet on common mode noise being carried on the safety ground long before blaming RFThe ground on the amp has been tried both lifted and present. I have reversed the AC cord using a cheater plug without effect. I have tried grounding t...
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Hi Scooter,
First of all, thank you for the Mac check list. Very helpful!About this Mac>More info>USB Device Tree: I appear to be able to select a dedicated port.My Revox B-260 S tuner seems immune to the Lavry at this point. I have a ferri...
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Romy, thanks, as usual, you seem to have been right. The system is on and I just checked V2 voltage; its way off, above .4VDC, so I grabbed a hot pad from the kitchen and rocked the V2 tube. The socket made the familiar a dry creaking sound and see...
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[quote user="Vance"] The Shunyata cord PLUS the Hyrdra conditioner represent the single best upgrades to my system aside from John's mods. I was skeptical about power cords and conditioners, but I'm a bit of a fanatic about it now. The testimonials f...
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Last week I had a date with my Psychotherapist (every serious Audiophile needs one when he is above 40 and Al - his name is Al Right - charges only 165$/h, he is an Audiophile and a good guy. In his waiting room I met my old buddy De - his name i...
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Yes, behind this ambitious title there is nothing to read besides
my typical rant about audio industry but there is also an opportunity for you
to think.
It is end of the year and audio industry is flowering with
all possible attributions ...
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Romy wrote :"...Do what I did. Stop experimenting with horns and begin to actually USE your playback..."If I am in the house and not sleeping, the system is on."...If you still have an itch to “think horn” then insult others about their wrong horn mo...
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[quote user="Bill"]
Had problems 2 and 3 here with my British crossovers
Both speakers have the 78 hz. Dip after a 50 hz. Peak. they are probably room resonances. Try moving the speakers and/ or the mike and remeasure.Also you have the sa...
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[quote user="Antonio J."] I said I'm a moron ;-).[/quote]
I am not very pleased that many people who only know me via Web chronically misused a word Moron. I very easy grant the “Moronity Status” to many people in audio but I do it not only because ...
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Romy wrote :
"...What I would do next is to lift ground at the 2000PP input – and then ground the PP2000 to your own ground. Make sure that no other devises on your playback use the main’s ground..."
drdna wrote :
"...I did this already; it...
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