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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="jessie.dazzle"] Your latest post got me thinking in a sort of incomplete way about how you might locate the injection channel... If you consider tone as a harmonic of the original source, then (depending on the order of harmonic) it may ...
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[quote user="jessie.dazzle"]Romy, I'm very pleased to learn that you've got your Injection Channel done. I assume the above illustration is not indicative of the way you have the Tannoy Red aligned with regard to the other drivers, as it appears to b...
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[quote user="jessie.dazzle"]I didn't know rigid (hard) foam was available in a spray can. Be careful; if you're using proper rigid foam, it expands with great force and would likely push through any tape protecting the cone of the driver.However, the...
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[quote user="jessie.dazzle"]Next time I'm making them from a double wall of 3/4-inch plywood sandwiching two inches of sand.[/quote] I do not know if that would be truly necessary. For sure it will not hurt and will be better but ULF that works with ...
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Let me start with a correctoin :Jessie Dazzle wrote (post dated 09-28-2007):"...So the 180Hz horn is currently handling two octaves (electronically), the 400Hz horn is also now handling only two octaves (electronically)..."This should read as fo...
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[quote user="jessie.dazzle"] I do my best to remain ignorant of the price for which I sell off the hours of my life. (Btw, I'm not a software engineer; I design cars). Yes I could pay someone to do the work, but I'd rather put the cash toward the pur...
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[quote user="jessie.dazzle"]I feel a driver needs to be somewhat hard-mounted to the enclosure. Cork gives the right sort of balance between hard-mounting and floating, while still sealing.[/quote]It's all about finding the balance point between the ...
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[quote user="jessie.dazzle"]A possibly dumb question here: When you and Paul give figures in milliamperes, where are you measuring the current (at what points), or are you extrapolating the figure? [/quote] The 6C33C current is measured in mA. The wa...
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[quote user="jessie.dazzle"]Consider treating the problem at its root.Why not build a simple dedicated PC, running Server 2008 with a RAID array? I recently added a RAID 10 array (8TB, striped and mirrored), to an HP workstation... The result is fa...
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[quote user="jessie.dazzle"]You might find that you don't need that much power.When I first built the ULF channels I assumed they would require loads of power, so I bought a single, mono, 1KW class D amp to use in testing. Then I tried driving them w...
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[quote user="Paul S"]You have said that there are no "good" 6N6Ps; but are some physically constructed better than others?[/quote]
Nope it was not what I said. I said the all 6N6P are equal, at least among those that I have seen and there are no rea...
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If it was not clear from my oblique comments before, I agree with what all have said, DAC1 seems to be techinically more correct but at the expense of some information loss. DAC2, which I prefer, has more distortions but also has more complete ...
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[quote user="jessie.dazzle"] Assuming one will not get anything under 50Hz (usable) from a 40Hz horn, I interpret the mission of lower-bass channels in the context of a horn system as follows….[/quote]
Hm, this is a bit tricky with bass. A pla...
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I'm glad you had the opportunity to look into the G10. I find it to be a very intellectually satisfying material, which (to this sick mind) is important. G10 is a material that reminds a person of cleanliness, stability, perfect cons...
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[quote user="jessie.dazzle"]Having said that, I notice no difference when switching to battery when using a laptop model to run the external drive of my music server setup, but this is possibly because power may be routed "through" the battery even w...
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[quote user="jessie.dazzle"]About the blinds you have: Amazing; they inspire suicide![/quote]I actually do not hate my room with blinds all the way down as I hated it initially. The last couple days it is mean weather outside, probably the first gray...
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[quote user="jessie.dazzle"]Since renewing all tubes in both ML2s, over the period of about 3-5 minutes, the V2 bias on one of the amps cylcles between .27 and .33VDC. Is this behavior indicitive of a defective 6C33C?[/quote] That is not good. Try to...
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[quote user="jessie.dazzle"] What am I saying? You might consider building a pair of "end of life" lower-bass channels now…[/quote] I would like to accent this point again. The "end of life" lower-bass channel in my view is not some kind of very well...
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[quote user="jessie.dazzle"]I just ran the calculations again and came up with a figure of 13.8 cu ft (for a QTC favoring transient response, not lowest F3). Then I measured the boxes and they do in fact come out to just under 14 cu ft, once wall thi...
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[quote user="jessie.dazzle"]I assume the above illustration is not indicative of the way you have the Tannoy Red aligned with regard to the other drivers, as it appears to be sitting out in front of them (?) [/quote]
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[quote user="jessie.dazzle"]Do I understand correctly: AG used Fane 8Ms in the Trios upper bass horn?[/quote] Oh, no! AG in Trio’s upperbass horn used similar 8” driver with 103 sensitivity. That driver was bad and it made me to look for a replacemen...
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[quote user="jessie.dazzle"] You did at one point (circa early 2005) prefer the metal suspension for MF :
http://www.goodsoundclub.com/GetPost.aspx?PostID=871
Quot...
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[quote user="jessie.dazzle"]
I just poked around on eBay and it seems the 6c33C-B tubes are not so easy to find. There are however plenty of the model 6S33S-V. My understanding is that this is supposed to be a more durable version, intended to...
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[quote user="jessie.dazzle"]....but are going to be something like 10 feet in length .... I will try to document the process, and consider posting the more interesting stages here on the Cat's site. [/quote]Well, Jessie. It sounds defiantly as a...
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[quote user="jessie.dazzle"]For the past 10 days I have had to temporarily stop production of the horns and put off researching components for the amps; all this is due to my moving to a new apartment sooner than expected. This move is actually very ...
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[quote user="jessie.dazzle"]
(Romy, it would be great if we could edit our posts).
Jessie, the forums are configured that each poster might edit own post within 2 hours after the posting, do you see the “edit” button
The Cat[/quote] Romy, Co...
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[quote user="jessie.dazzle"]Romy, I followed his advice and currently rent four storage facilities; two on either side of the Atlantic. I think its time to consolidate, but I'll definitely let you know if I need to add a fifth. jd*[/quote]Jessie:T...
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[quote user="jessie.dazzle"]… I do not fully understand the relationship between output impedance and diaphragm control; also I don't know what you mean by "negative impedance". Your mid-bass drivers have 15 Ohm coils; from what you write, I assume y...
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[quote user="jessie.dazzle"]As you pointed out, you've finally found a place with many positive points; this gives it, for you, a certain value beyond its purchase price. Over here where all real estate is not only valuable, but down right precious, ...
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[quote user="jessie.dazzle"]For your rear chambers, as they will be adjustable, it would be smart to go with a max volume that is larger than the max you estimate to be necessary. [/quote] The size of rear chamber is something that dials in the compo...
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