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Read the Post in new Window Read the Post in Threaded view  Post #5: Here is the global L-Pad economy at it’s best by Romy the Cat on 2007-06-16 
Browse the content of the threads in new Window  Thread: Who makes good L-Pads? in Audio Discussions  4 Replies 
My new 20L and 30K L-pads for the 6-chenals Super Melquiades’ tweeters and Injection channels. They are 24dB down by 1dB, made on the Elma Rotary switches and stuffed with unavoidable RB60 resistors. I did not want to burn my fingers and outsourced t...

Read the Post in new Window Read the Post in Threaded view  Post #60: The Super Milq’s input: electrical perspective. by Romy the Cat on 2007-11-24 
Browse the content of the threads in new Window  Thread: 6 Channel Version of Super Melquiades in Melquiades Amplifier  131 Replies 
[quote user="op.9"]Could you help me understand your biasing scheme with this version? I thought I understood the original Milq circuit - but the only channel that looks like that to me is the D channel. I don't get A and B at all! what is the 50 ohm...

Read the Post in new Window Read the Post in Threaded view  Post #3: Resistors, resistors where are you….? by Romy the Cat on 2007-02-23 
Browse the content of the threads in new Window  Thread: Who makes good L-Pads? in Audio Discussions  4 Replies 
Thanks, Adrian, as I underused the Dave Slagle is autoformer guy. I have no needs for autoformers as I need purely restive load. I fact it is not big deal to find switch,  it is complicated to find a ready to go attenuator. Mike Percy care many ...

Read the Post in new Window Read the Post in Threaded view  Post #38: It's all relative by Paul S on 2007-05-06 
Browse the content of the threads in new Window  Thread: RAAL “Water Drop” tweeter for Macondo. in Horn-Loaded Speakers  77 Replies 
Romy, I am on the verge of an L-pad for my HF ribbons, but in my case I believe it is mostly the MC cartridge response I am wanting to offset, on a case by case basis.Also, this would allow me to adapt HF to recordings, since there are some...

Read the Post in new Window Read the Post in Threaded view  Post #200: Why nothing is simple with this damn amp! by Romy the Cat on 2009-02-24 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
[quote user="floobydust"]   As you pointed out, if the input circuitry and driver operating points are fixed, your only options are to lose it via coupling or the output stage. Maybe split them, i.e. use a 1:0.5 ratio on the inter-stage tra...

Read the Post in new Window Read the Post in Threaded view  Post #28: Drafting you by Paul S on 2007-02-25 
Browse the content of the threads in new Window  Thread: RAAL “Water Drop” tweeter for Macondo. in Horn-Loaded Speakers  77 Replies 
Quite likely, at least some of the time.I'll just stay tuned while you locate the L-pad ;>).  It's been years, but I think the ones from my 'stats are choke-based.Nice to have options on a record-by-record, day-by-day basis, anyway, to keep t...

Read the Post in new Window Read the Post in Threaded view  Post #199: Gain to lose by floobydust on 2009-02-24 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
 Romy, As you pointed out, if the input circuitry and driver operating points are fixed, your only options are to lose it via coupling or the output stage. Maybe split them, i.e. use a 1:0.5 ratio on the inter-stage transformer and you coul...

Read the Post in new Window Read the Post in Threaded view  Post #26: To gain some efficiency & LF vs. DEBZ by Paul S on 2008-10-26 
Browse the content of the threads in new Window  Thread: The loudspeakers for a powerful SET in Audio Discussions  48 Replies 
Like I said, Yoshi's gift of de-whizzered Reps got me thinking of better efficiency and more "weight".So far, I've got this:A pair of Eminence Kappa 18" in ~ 6 cu. ft BR box to ~250 Hz; de-whizzered Lowther DX-4 PLUS de-whizzered Reps ...

Read the Post in new Window Read the Post in Threaded view  Post #2: I do not think I said a lot…. by Romy the Cat on 2005-07-07 
Browse the content of the threads in new Window  Thread: Making it sing... in Horn-Loaded Speakers  8 Replies 
Scott,[quote user="skushino"]- Remove L-pads from mid and tweeter (sounds a little brighter, yet "more pure" and "better" to my ears) [/quote]Lpad sets the attenuation and this is the parameter that should be tuned without fantasizes and subjectivism...

Read the Post in new Window Read the Post in Threaded view  Post #1: Making it sing... by skushino on 2005-07-07 
Browse the content of the threads in new Window  Thread: Making it sing... in Horn-Loaded Speakers  8 Replies 
All-I'm optimizing new speakers, but the deep subject matter is a little new to me.  Will this work?Using a pair of Welborne Labs DRD300B SET amps (tapped 8ohms) with a 3-way passive crossover to integrate these drivers.  Here is ...

Read the Post in new Window Read the Post in Threaded view  Post #21: Microwave tweeters? by Romy the Cat on 2005-08-08 
Browse the content of the threads in new Window  Thread: Electro-Voice T350, T35, + Fostex tweeters. in Horn-Loaded Speakers  34 Replies 
Thanks, Greg [quote user="Greg B"] Cap and L-pad resistor quality is critical even in the cheaper models. [/quote] I do not use any L-pad resistors with tweeters. If you need to reduce the tweeter output I drop the caps and move the tweeter up at t...

Read the Post in new Window Read the Post in Threaded view  Post #4: Use constant impedance attenuation. by Romy the Cat on 2010-12-31 
Browse the content of the threads in new Window  Thread: A proper implementation of low-pass filters in Melquiades Amplifier  4 Replies 
Mark, if you have volume-pot preceding the filter that all that you need to do is to put the volume after the filter, of to load the filter to your volume control. The volume control of cause in this case shall not be a regular pot but it shall be a ...

Read the Post in new Window Read the Post in Threaded view  Post #7: Frequency response by anthony on 2023-06-23 
Browse the content of the threads in new Window  Thread: Macondo 3.0 in Horn-Loaded Speakers  51 Replies 
Yes, a cheap inductive l-pad between OPT and S2 in midrange channel.  Interestingly, the frequency response of the first order Lazy Ribbon is remarkably similar to a response you posted somewhere on this site of the Water Drop with third order filter...

Read the Post in new Window Read the Post in Threaded view  Post #3: "Passive" and "Virtual" by Paul S on 2009-09-26 
Browse the content of the threads in new Window  Thread: Equalizer? Hm… in Audio Discussions  4 Replies 
I absolutely remember posting about A vey special "vintage" EQ a while back, perhaps in the context of LF; but I can't remember more than that.IMO, the 1st order of business is to avoid the effing "DSP".  Let someone else get it right ONCE, then ...

Read the Post in new Window Read the Post in Threaded view  Post #39: No silver, no balancing problems by other components. by Romy the Cat on 2007-05-06 
Browse the content of the threads in new Window  Thread: RAAL “Water Drop” tweeter for Macondo. in Horn-Loaded Speakers  77 Replies 
[quote user="Paul S"]Romy, I am on the verge of an L-pad for my HF ribbons, but in my case I believe it is mostly the MC cartridge response I am wanting to offset, on a case by case basis. [/quote] Hm, this it VERY bad. Fix you cartridge setup, it's ...

Read the Post in new Window Read the Post in Threaded view  Post #42: Tweaks for horns by Jorge on 2011-12-31 
Browse the content of the threads in new Window  Thread: Crossover Design in Audio Discussions  69 Replies 
First and most important is time aligning the drivers, this will help a lot.When you are finally done, realign again... ijijiijii I would think you already have everything perfectly simmetrical to your listening position etc.Toe in and all of that. p...

Read the Post in new Window Read the Post in Threaded view  Post #29: Roundup: RAAL, “Water Drop”, Ribbons, Vitavox, generalizations. by Romy the Cat on 2007-02-26 
Browse the content of the threads in new Window  Thread: RAAL “Water Drop” tweeter for Macondo. in Horn-Loaded Speakers  77 Replies 
I would like to pass some summarizing observations and some generalizations regarding the entire “Water Drop” project. THE IDEA The idea of trying to find a tweeter to compliment Macondo was a good idea. Many of you know that I was proudly declari...

Read the Post in new Window Read the Post in Threaded view  Post #40: Cartridge loading and tuning for ribbons by Paul S on 2007-05-06 
Browse the content of the threads in new Window  Thread: RAAL “Water Drop” tweeter for Macondo. in Horn-Loaded Speakers  77 Replies 
Good advice, to be sure.I have chosen the most "neutral", "tape-like" MC I have found, but of course it remains a phono cartridge/transducer...  Meanwhile, I just checked VTF on a hunch and was annoyed to find that at some point&n...

Read the Post in new Window Read the Post in Threaded view  Post #6: Re: The problems by skushino on 2005-07-07 
Browse the content of the threads in new Window  Thread: Making it sing... in Horn-Loaded Speakers  8 Replies 
Romy, I'll limit my answer to only speaker-related problems.  1) Still too bright sound.  Not hard or edgy, just too much top end.  My local guy suggested trying a single resistor in series, rather than an L-pad, to tone down the tweet...

Read the Post in new Window Read the Post in Threaded view  Post #42: Hi/lo ambience corollary by Paul S on 2007-05-19 
Browse the content of the threads in new Window  Thread: RAAL “Water Drop” tweeter for Macondo. in Horn-Loaded Speakers  77 Replies 
Sometimes it can take a while for the other shoe to drop.I knew I had bass and balance issues with my phonostage.  I recently added some capacitance to the output cap, and that did the trick for the ribbon level.Going back to the earlier discuss...

Read the Post in new Window Read the Post in Threaded view  Post #35: The “fundamental channel”: What a beauty!!! by Romy the Cat on 2006-08-23 
Browse the content of the threads in new Window  Thread: Adding one more spherical to Macondo. in Horn-Loaded Speakers  92 Replies 
Got today the parts and finalized the “perfect” Bessel passive crossover for my new channel. The coils are regular air-core 2.5H and 7H, the caps are Theta 10uF and the small wirewound tuning resistors that kills ~1.5dB in the channel. When I pu...

Read the Post in new Window Read the Post in Threaded view  Post #3: Re: I do not think I said a lot…. by skushino on 2005-07-07 
Browse the content of the threads in new Window  Thread: Making it sing... in Horn-Loaded Speakers  8 Replies 
[quote user="Romy the Cat"]Get RTA and set the band-pass of acoustic pressure form the channel identical. [/quote]Yes, I need to get one!  Although Bruce and my tech guy both advise that the RTA may cause more problems than it solves, ...

Read the Post in new Window Read the Post in Threaded view  Post #89: Havering on... by jessie.dazzle on 2009-09-01 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
Well, yes... I've not been to prison in over two years! Apart from keeping me off the streets at night, the results when listening to one of the 40Hz horns were, dare I say, encouraging, though I do hesitate to say so, as the "evaluation" was carried...

Read the Post in new Window Read the Post in Threaded view  Post #153: Balancing amplitude between drivers/horns by jessie.dazzle on 2010-01-09 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
A little update :   Reading some recent comments in the "Configuration from Italy" thread: http://www.goodsoundclub.com/Forums/ShowPost.aspx?postID=12605#12605  prompted me to share what I've recently done. Yes its an obvious thing to do, but it took...

Read the Post in new Window Read the Post in Threaded view  Post #43: Now that I have had a good look at them... by anthony on 2015-07-09 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="Romy the Cat"]What do you mean the example of inductive Lpad? All speaker level Lpads are inductive. The speaker level Lpads work with low voltage and high current and therefore they use wire wound restive elements. Any wire wound compon...

Read the Post in new Window Read the Post in Threaded view  Post #1: Something that a loudspeaker must have. by Romy the Cat on 2005-09-27 
Browse the content of the threads in new Window  Thread: Something that a loudspeaker must have. in Audio For Dummies ™  17 Replies 
This is quite recent conclusion, as I sick and tired to do not say it finally! A loudspeaker must have a volume control that will adjust an amount of HF that a loudspeaker radiates into listening space. I playback systems that has an excessive 1/3 d...

Read the Post in new Window Read the Post in Threaded view  Post #40: More on the "inductive" LPad by anthony on 2015-07-03 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="Romy the Cat"] anthony wrote:Sorry Romy, I was not clear enough, but the resistor that I am questioning is in the Fundamentals Channel (not the MF Channel as I believe you referred to in your previous post) between the OPT and the S2....

Read the Post in new Window Read the Post in Threaded view  Post #12: Ah, the Fundamentals Channel!!! by Romy the Cat on 2015-06-01 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="anthony"]Sorry Romy, I was not clear enough, but the resistor that I am questioning is in the Fundamentals Channel (not the MF Channel as I believe you referred to in your previous post) between the OPT and the S2.[/quote]    Ah, th...

Read the Post in new Window Read the Post in Threaded view  Post #7: The problem is not THE problem. by Romy the Cat on 2005-07-07 
Browse the content of the threads in new Window  Thread: Making it sing... in Horn-Loaded Speakers  8 Replies 
Scott, you see, this is the problem. You do not talk about the problems “as is”. All what I was asking was the acknowledgment/recognition/identification without context of loudspeakers. Your listening/assessment awareness is completely grounded to th...

Read the Post in new Window Read the Post in Threaded view  Post #23: The Water Drop Tweeter: eventually!!!! by Romy the Cat on 2007-02-23 
Browse the content of the threads in new Window  Thread: RAAL “Water Drop” tweeter for Macondo. in Horn-Loaded Speakers  77 Replies 
Ok, I removed the series cap from the amp output and made it as it should be – pure parallel. To my great satisfaction the little “dirty inflictions” that I got in Vitavox are gone and now the S2 as clean as it should be. I presume in the former sett...
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