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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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As you may know the 7788 is a high transconductance pentode which should in theory be able to give higher audio resolution than say 12AX7, 6072 tubes in tube mic pre designs. On search here the 7788 was mentioned as being used as the ...
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I feel that the correct objective of home music listening should be to reproduce as closely as possible what one can enjoy in a great concert hall with great musicians.Thus, I have been a advocate for surround processing for years. As stereo replaced...
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I got a few from some other company years ago but can't remember who they were. I think they were a German company. Again try them first in the speakers and any higher wattage amp. I have used them for years without any problem of safety nor have I h...
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I probably never get tired to mention the stupidity of the folks
who write for Audio publications. This time my hero is Marshall Nack of positive-feedback.
The hero just published a review about the Lamm updated preamp L2:
http://positive-feedba...
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...on the Placette. Biggest problem at the moment is that it does not have any gain and I definitely need some gain.What I have done is breadboarded a nice diy SS pre with 2x or 3x gain, dc coupled, current mirror, 100mA. It was started a couple of...
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Post #88:
Great!
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by
G
on
2018-04-13
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Thanks Romy.
Ok. I have installed a 30k resistor on the input and it reduced the drifting when the preamp is not connected. If my preamp is connected then I do not get any drifting at all and input voltage stays at 0v when I switch the...
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The question in my mind Romy is: why? I will be interested to hear your comment on what your goal was to learn about your system in introducing these and what the results are. After the extent to which you have described the sound of your...
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[quote user="Romy the Cat"]... to show to a thinking reader that the preamp was “reviewed” by an imbecile. The idiocy of thoughts in the article is too obvious ...The Cat[/quote]*Ahem*A thinking Reader?In the audiophile world of today??Here is the e...
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Hi Romy, I've read several of your posts on audio asylum where you indicate the L2 is far to superior to the L1. More recently on this site you wrote, "the X-factor of L1 (the ancestor of L2, that BTW was way better preamp from many perspec...
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[quote user="Romy the Cat"]Briefly: a spatial expander is a mechanism of artificially creates spacious more sound. A spatial expander does not generate more realistic sound, but more pleasant sound. The spatial effects are accomplished by mixing into...
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My room, is 16 to 17 feet wide, 27 to 28 feet long by 12 to 14 feet high with all walls splayed, with a combination of absorption and diffusion on the walls. All electronics are fed electricity by three pure power units originally recommended by Rom...
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It is not the amp but the Yamaha preamp that gives the problem. A good kick in my butt to finish the 801 pre a la Anthony. Apologies for spamming. ...
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Thanks for the comments. I believe that a preamp giving the same kind of benefits of Melquiades and being able to deliver them with any power amp and speakers would be something truly great. I know it won't be the same than the amps, but probably som...
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Well, the added benefits of cross-source validation is that some of the sources are stable but others are less stable and might vary in its basic quality with time. For instance digital is very stable and since you once set it up properly then it rem...
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To follow up on Romy's latest broadcast on his visit to my house.My left and right speakers consist of Jl Audio 113 revision 2 subs to 70 Hz., Edgar 50 Hz. 6 foot Straight horns with two 12 inch electravoice drivers each to 500 Hz, Edgar round mid ho...
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Wow:Looks like a trip to Boston coming on for the big guy once the snow is gone.Very interesting doings there Romy!Your cat is looking well, and the amps are eye candy. I can only assume the sound equals the appearance.Time will tell, hopefully I'll ...
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Ah, those figures seem more reasonable - 30pF seemed a bit low. Well, I'm not sure what you should be on the lookout for - as you say, it's a completely different animal to having a 3uF in line with the S2. What I would suggest, and this isn't ...
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Yes, each piece of gear would seem to require its own unit. But they probably deliver enough juice for a tubed preamp or the like.clark
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You can eliminate the driver stage and drive a DHT in just one stage, because your source or preamp is sand based and has plenty of current drive.Page 10 of the PDf showed an example of driving a 300B DHT to full output with just +/- 4ma.http://www.t...
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Oh well sorry for the false lead, you are probably right that there was just something falty in my 300B but at least I found an amp that I really like.Since i have two outputs on my preamp(placette) maybe i'll look around for a cheap flea-power tube ...
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Perhaps I am asking for trouble, but did anyone had any experience with those SE mosfet creations made by Susan Parker?Preamp uses Romy`s beloved 6C33C tube and the 10W power amp has two transformers, two resistors, one mosfet and that`s pretty much ...
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Hi Romy, I see here that you are of the mind that putting the attenuator AFTER the gain stage has negative consequences for the sound. I agree totally with this and had a discussion with Charles Hansen regarding this as well that the attenuator...
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Romy!More changes:B&W Matrix 800's gone.Aerial 20t's in.Wadia 270/27ix gone.Levinson 390s in.Classe Omega preamp in.Got the Otari MX5050BII reel deck up and running in the system.....also the TEAC X-1000R 4 track in the system.Life is good, ...
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...I prefer two channels and find them sufficient for all movies. Which means, I've never had trouble with center fill -- all dialog comes out fine on my OPPO(s), as it did with my Sony PS3.Also good luck finding a decoder with preamp outs.clark...
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...but I don't hold out much hope. Especially with the mod meters! You might get most everything in a pair of packages tho'. But you should also look for preamp-out RCAs.By the way, last time I was there you had a JVC projector too...clarkPS Totally ...
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Hi Romy, Your amp schematic is intriguing. I have a question about the dual supply for the input tube grid bias. If my preamp uses an output coupling cap, do I need plus and minus supplies ? The interconnect will be biased at the sam...
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My preamp also uses those 0A2 and I have a bunch of "made in USA" ones that look right the same than those "National", using the same orange color for the brand letters, but they're supposed to be RCA. They all failed in a quite short time in deliver...
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Antonio,You should expect to hear just the music. In explaining the effect of this process in words, I am in a simmilar position to Romy with his Melquiades amplifiers.Most speakers sound just fine, to those who are used to them. We have, in our sens...
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[quote user="anthony"]I also have another SS pre just arrived with has been measurebated into existence with measured spec's difficult to confirm with the best measuring equipment getting about.[/quote]I've been listening to the new buffer with imd/t...
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Paul, my headphones are electrostats that need a separate driver. I use Blue Hawaii amp with a quad EL34. The preamp has a direct output from the selector switch, which will be connected to the headphone amp....
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