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Read the Post in new Window Read the Post in Threaded view  Post #5: Cats and Hifi by JANDL100 on 2008-06-11 
Browse the content of the threads in new Window  Thread: Cats and hifi in Audio Discussions  14 Replies 
A nice pic of Lara and one of my newly acquired Quad 57 esl speakers....

Read the Post in new Window Read the Post in Threaded view  Post #64: Quad and 6C33C by KOTriode on 2012-03-14 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
Forgot to elaborate the Quad system.It is actually a tri-amp Quad system, below 100Hz is the Supravox 15in Field coil in open baffle, then it's a Stacked Quad ,and about 5Khz there were 5 RTR ESL cell. I did try the 6C33C amp in a single pair Quad by...

Read the Post in new Window Read the Post in Threaded view  Post #189: My five cents by twogoodears on 2010-02-06 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
Dear Roman and all... also unrequested/unsolicited, MUST give my opinion on the above... I had to translate my 2,3 meters from my Gotorama speakers system, and obtained 7,6 or so feet... it's angled 110° in front of my head, placed on 5,3 meters long...

Read the Post in new Window Read the Post in Threaded view  Post #5: Compare 1950's Ribbon-Horns by Horn Savant on 2010-08-17 
Browse the content of the threads in new Window  Thread: Electrostatic Sub Horn in Horn-Loaded Speakers  4 Replies 
I note English Mfgrs tried low power ribbon Midrange horns in the 50's (Decca, Kelly & Quad also made one!).These were probably inspired by the hi pwr prewar? Klangfilm ribbon horn (would like to hear one of those!) But, after Peter Walker moved ...

Read the Post in new Window Read the Post in Threaded view  Post #7: Regulation logic in amps and everything esle by Romy the Cat on 2011-09-08 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
[quote user="KOTriode"] Without regulation, this amp would not work correctly due to its design: DC coupled and fixed bias. The high transconductance will make the bias current varied as much as 50-100ma due power line fluctuation without the reg...

Read the Post in new Window Read the Post in Threaded view  Post #33: 6C33C as single triode. by KOTriode on 2011-09-21 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
The preamp has the classic tube regulated power supply using 5R4, 6AS7, 6SJ7. It is transformer coupled output and has no capacitor in the signal chain, the gain is about 8db, so it is not a buffer. For convenience, it does has a remote control. It i...

Read the Post in new Window Read the Post in Threaded view  Post #6: 6C33C amp. by KOTriode on 2011-09-08 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
Without regulation, this amp would not work correctly due to its design: DC coupled and fixed bias. The high transconductance will make the bias current varied as much as 50-100ma due power line fluctuation without the regulators. It mi...

Read the Post in new Window Read the Post in Threaded view  Post #3: A comment by 'manuelgarcia66' by Romy the Cat on 2007-02-28 
Browse the content of the threads in new Window  Thread: How to USE “Resonating Oops” in loudspeakers in Horn-Loaded Speakers  184 Replies 
Somebody “manuelgarcia66” wrote in the Yahoo Tannoy Group. I think it was the ONLY reply on SUBJECT among others that proposed that I was in ignorant troll who should not bother the forum: "I?ve come to tannoys from different speakers-enclosures: Me...

Read the Post in new Window Read the Post in Threaded view  Post #34: The half life of 6C33C and 6C33C preamp. by Romy the Cat on 2011-09-22 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
[quote user="KOTriode"]The preamp has the classic tube regulated power supply using 5R4, 6AS7, 6SJ7. It is transformer coupled output and has no capacitor in the signal chain, the gain is about 8db, so it is not a buffer. For convenience, it does...

Read the Post in new Window Read the Post in Threaded view  Post #6: Its all relative by Joe Roberts on 2009-01-13 
Browse the content of the threads in new Window  Thread: Aporia - Silbatone Acoustics speaker in Horn-Loaded Speakers  108 Replies 
At CES there were Viagra-junkie sized power cords everywhere for $5000. Around our room were $10k and $20k speakers that sounded like a wet jukebox. It was the land of delusion.Value per topology is one way to measure but let's instead start with a p...

Read the Post in new Window Read the Post in Threaded view  Post #10: Listening to specific case is precisely my point, typology be damned by Joe Roberts on 2009-01-15 
Browse the content of the threads in new Window  Thread: Aporia - Silbatone Acoustics speaker in Horn-Loaded Speakers  108 Replies 
Cat:First off, the Silbatone Aporia is $30k/pr not 100k. You could do 6 speaker surround with Aporia for well under $100k. Hope you feel better now."So what," I say. $30k is already too much for my pocket. I am on a fellowship this year and cheapskat...

Read the Post in new Window Read the Post in Threaded view  Post #120: How many stages and why... and who makes that 45 or 2A3 by floobydust on 2009-01-20 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
 First, Adrian, Thanks for your feedback on the newer designed 2A3 tubes... very interesting. I've looked at all 3 of these brands before but have not as of yet purchased any (I have a large collection of 45 and 2A3 of various NOS US brands...

Read the Post in new Window Read the Post in Threaded view  Post #121: Everything about everything. by Romy the Cat on 2009-01-20 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
[quote user="floobydust"]  The main component that limits low-frequency response in any SET is the OPT. For these initial designs, I used the smallest Hashimoto SE OPTs... their H-203S for the 2A3 and their H-507S for the 45 which are rated at 7...

Read the Post in new Window Read the Post in Threaded view  Post #2: Nobody can avoid the trap of language by Joe Roberts on 2009-01-13 
Browse the content of the threads in new Window  Thread: Aporia - Silbatone Acoustics speaker in Horn-Loaded Speakers  108 Replies 
As the writer of the above-referenced propaganda, I am pleased to once again tweak the whiskers of the cat. First off, this is promotional material so what the heck do you expect? Every brochure offers a new benchmark in performance or it is not doi...

Read the Post in new Window Read the Post in Threaded view  Post #1: Some analysis of the Joe’s system. by Romy the Cat on 2019-12-16 
Browse the content of the threads in new Window  Thread: Some analysis of the Joe’s system. in Horn-Loaded Speakers  1 Replies 
I was pointed out to Steve Guttenberg’s video “Meet Joe, and his amazing DIY horn speakers” at https://www.youtube.com/watch?v=EFoCVw2AJRc.     I would like to provide some commentary regarding what I observed in there.  Steve Guttenberg is an in...
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