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Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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A little update on the Milq amp.After sorting some of the problems with the amps transformers (see posts above ) .I now have two mono blocks operational that have about 700 hours ,I'm so glad hour meters were installed .Filament voltage is spot on 6...
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[quote user="Romy the Cat"]Joaco, thanks for sharing. You said that you use 2A3/45 amplifier, do you use choke or capacitance right after your rectifiers? It would be interesting if you plug a scope into your loaded regenerator and post a picture (ma...
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Hi
Pioneer did something with multicell tweeter horn.
I have a picture, but don't know how to upload it .
cheers ,
Jan
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Their are a pair of Pioneer Beryllium ribbon tweeters on ebay
with about 8 hours left (Item number: 5790340383) for US$25
The part number is PT-R14A, maybe a distant cousin to the TADs??
Regards
James...
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Bud,Thanks for pitching the A45a and FR4.5, I never dealt with both of them and will consider them, though it is slightly disconcerting that all those drivers meant to be wide bandwidth and therefore have too much HF in them. Still, my initial candid...
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Moreart, somebody sent me this link last year. You are surely the DIY pioneer of back loaded Manger.As you probably know this is a touchy speaker to work with. Rated at 91 dB/W input by the factory, we measure ~91 up to near 92 dB/1W/1m in our two mo...
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Well, maybe a little cussing first to set the tone. The older SPU's are now well sought after, many will end up in collections at now over inflated prices probably in the Far-East where they are worshipped. I've heard a few older SPU's and even those...
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Hi Roman, hi all... intriguing post and interesting questions, as I've been for about 20 years a triode and, before, a tube user and a glowing-in-the-dark maniac.My experience...I purchased - years ago - an Hiraga 20W which I used as a bass enclosure...
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Saturntube, thanks for the explanation. I thought that HR2 was just inspired by RCA but it look like it direct copy of it.
http://www.audioheritage.org/vbulletin/showthread.php?p=117046
I never heard the RCA LC-9A but from the fa...
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Well, let start with factual data:
http://www.mceproducts.com/knowledge-base/article/article-dtl.asp?id=32
How relevant it is for us, the audio people? Probably very little, and the most important it does not answer why TAD use cobalt in their twee...
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The recent events in my playback made me to think about he new prospective duty of tweeters. Since the Super Melquiades was enlisted for duty the Vitavox S2 got it’s own dedicated amplifier channel and stopped to “see” the coil of upper bass driver. ...
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[quote user="Paul S"]OK, Romy, that EnABL stuff got my attention!I can't recall all of the bad ideas borne of good research, but this EnABL thing sounds a little fishy, and certainly it sounds too good to be true, as existing in a simple and really u...
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[quote user="joaco"] About the 2A3/45 , I ask a technician from Japan that lives several years in Chile to build it , he develope the whole tech repair lab for pioneer here or panasonic I do not remember well , but he leaves Chile about 6 years a...
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Well, I never felt that for prototyping I need more then one-channels crossover as by use of the poor sounding prototyping crossovers I never look at the system in it’s entirely but rather for the “technical listing” of just two channels that I...
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[quote user="Romy the Cat"]Again, it was very interesting, but… Let agree that methodologically you did not try Placette as it performance was masked out by you need to use your Neurochrome buffer to get gain. Your chain will sound as the worst eleme...
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[quote user="jessie.dazzle"] Romy's comments on "axial rotation" of the horns (meaning in this case, angling the horns) has me thinking. I had planned to build in a vertical tilt adjustment for horns located near the floor and ceiling... I woul...
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[quote user="Vasyachkin"]
compression drivers are the way to go as far as i am concerned but obviously performance depends on the horn lens.
my beef with ET-703 is that i don't understand its horn or whatever it is. if not an explana...
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[quote user="Kcct82"] I know you're not a big fan of digital delay, but I'm using behringer DCX 2496 to make things easier... this way I get to keep all horn mouths on the same plane which avoids some reflections (from other horn mouths). [/quote]
S...
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Thanks Orca,
I found another 2482 a while ago...
however I do have some sad singles here
I'm looking for another JA6601 (this is a midrange only 6681 as far as I can tell)
and also...
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Observations and Thoughts from theRocky Mountain Audio FestBy Earl Geddes
First I want to thanks all of the kind people who came by the GedLee room. I hope that we both learned something from these meetings.
The Fest this year had about twice as ma...
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NEW! CD-1180(4) Johann Sebastian Bach: The Well-Tempered Clavier Evelyne Crochet, pianoCD 1 : Book 1 - Preludes and Fugues I to XV (Total time: 65:45) CD 2: Book 1 - Preludes and Fugues XVI to XXIV Book 2 - Preludes and Fugues...
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Finally, I'd appreciate your opinion on the scheduled implementation of regenerated electric power on my system.I am planning to hook up my entire gear on a single PP1050hv (230V) unit:2-channel:
PrimaLuna ProLogue Classic integrated tube amp (Clas...
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Hello again, Romy... friends.. cats...
I am sorry for my delinquence in replying... but the good news is that in the past weeks I have managed to get a beginning Goto system together... more on that in a minute..
first, basshorns... the bassh...
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[quote user="Jeffrey Jackson"] first, basshorns... the basshorns that I posted here some years back are my straight ~50Hz horns (my memory is fading)... they are 8' long... then rear chamber.. mouth ~ 3' x 4'... throat ~8" x 8"... rear chambers of va...
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[quote user="tuyen"]This is my current 4-way GOTO setup. I know it is in no way optimal but I am interested to find ways I can improve it's layout.
GOTO SG-38WN woofer in 360L onken cabinetGOTO SG-505TT mid-low driver with Azurahorn AH-160 ho...
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...especially about the difficulty of making a transparent preamp. It seems to be a general concensus.
But I need gain for most of my sources apart from perhaps the FM ...
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A site reader sent me last nigh a link to a Yahoo newsgroup where a guy posted at feedback about Accuphase T-1100
http://tech.groups.yahoo.com/group/FMtuners/message/66682
Here is the content of the newsgroup post:
David...
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The Valve Technology Milestone Timeline Courtesy to the National Valve Museum
1640
The first vacuum. Otto von Guericke's air pump
1643
The barometer first demonstrated by Evangelista Torricelli
1654
Magdeberg Hemispheres a d...
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