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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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In the linked thread (at the top of the page) I was pointed out that GM Lab introduced their new Focal Utopia EM loudspeaker. Yesterday the Seattle’s Moron “mikel” posted a picture at AA with the new Utopia EM presented at RMAF 2008.
I saw the pic...
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hmmmm... Well, if you say so, I'll go as far as to say maybe. you can get OK sound @ some distance. I sure didn't notice any distance to get even OK sound from. I didn't spend much time in the room, I just wanted to check out th...
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Looks smart. How high (in frequency) can you go before the bend has an audible effect? If it is an issue, could it be "mitigated" by adjusting your upper bass driver?
Meanwhile, I was thinking that something like double doors (or sets of double ...
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Sorry, I should have said by now that my (15" Audax PR380M) bass units are FLAT to 38 Hz, and then they roll off naturally at 24 dB below that, meaning if I have 38 Hz @ 100 dB, then ~30 Hz is still >88 dB, and obviously 20 Hz is still p...
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Anyone contemplating buying a CU-180 should know that it must be dead flat. Even the slightest departure from being flat will negate the benefit of intimate contact across the entire surface of the platter.How flat? Flat enough that the weight of the...
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It took some work, but I finally got a new phono stage (K&K) and a Bent TAP (transformer-based volume control) installed, along with some new cartridge clips (ugh!), and I put the "new system" through its paces Saturday and Sunday. I a...
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Their prices are the same as from Bent Audio, though. Bummer......
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Not to go overboard after only 2 days of operation, but the Bent TAP (transformer-attenuator [passive] pre-amp) is a pip in my system. It is as "neutral" as anything I am familiar with, compared to by-pass (with CD). I love havi...
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[quote user="Romy the Cat"]
I juts got home, put a record to play and suddenly discovered that my SPU has it’s cantilever bent 90 degree and then even twisted vertically. It was perfectly fine last night!!! I have no idea what kind forced what appl...
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Not to be too presumptuous but i thought i'd start a thread that could serve as a repository for lowther comments, ideas etc.the impetus for this was that rola experiment i mentioned in the cogent rmaf thread. I was thinking hmm, 'hard', 'shouty' tha...
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Romy,You may post the paper if you like. It is public domain material. I did send a copy to Antonio so any immeadiate need has been met.If you meant that you want to explore this process on your own, then you need some basic supplies. 1. Speedball pe...
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Like I said, musical bass via the TAP does not thin out at all before my BR bins roll it off; but that's as much as I can say at this point. And (against conventional logic) the TAP certainly does much better bass than any active LS I...
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Romy, is it a goal to make the horn strong enough to raise one end or turn it without having it fall apart from its own weight?From your earlier descriptions, I expected to see at least one continuous piece of plywood bridging the full length of the ...
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[quote user="rdrysdale"] The bass driver will play to about 8 khz… [/quote]
OK, this dose make some since, become I understood you that it droops after 300Hz.
I wonder what made you to select the 300Hz as a crossover point – the currently existing...
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Rullit Audio one of those funny c-37 type chaps but he is excellent with his hands it seems.He's done horns in both lathed and bent wood formats.He has a store on ebay and a gallery at Webshots. [url]http://stores.ebay.com/Rullit-Audio-Ultra-Fi-...
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Vaseline;-) is easily wiped off...My speculating request was concerned to the idea of a bent bass horn, a mid-bass and other ways "almost" (phisically) in-phase... apparently so, as it's only moved at the back... not really aligned - i.e. how can som...
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[quote user="Paul S"]Romy, is it a goal to make the horn strong enough to raise one end or turn it without having it fall apart from its own weight?From your earlier descriptions, I expected to see at least one continuous piece of plywood bridging th...
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hi jessie!why you dont make it from carbonfiber on a foambase? carbonfiber is much easier to work than glassfiber and of course gives stiffer boards. im also just working on a "surfboard" horn, but i make the bent sides with layers of depron boards a...
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T, although I am not in disagreement with what you suggest but I have to admit that your expectation of user applications dose not make sense to me. I’m taking the use of a transformer in a system and getting a result out of it instead of building a ...
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In the case of the Audio Note field coil cartridge the field strength (and hence output) was significantly less than that from the permanent (AlNiCo) magnet equipped Io. Yet the performance of the field coil version (Io Ltd) was 100x better despite a...
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Rakesh, yes, this is what upsets me – the fact that I do see a lot of God’s irony in the event and in a way I find it … stimulating. Hey, I do not even believe in “God” but I find it stimulating. Thanks, Gordon. I do (did) have the Bent transformer ...
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[quote user="twogoodears"]Also: a tuning fork, the basic, humble tool which makes a full orchestra to play "in tune" is - as applied math and acoustic, a sort-of interpretation of Nature and its Laws - giving 440 cycles (hertz) flat to the trained mu...
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As far as I know is a UK based company. I contacted them some time ago, and they can provide the nude transformers for a way more affordable price than Bent or Music First that use S&B's in their products.
Contact them at this address: info@stevens-...
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Ok, so imagine I'm someone living in the US with a keen interest in playing my collection of CD's and LPs. I need some speakers priced between 5000 and 10000 dollars to go with my 25 watt tube amp. I won't buy Edgars because Bruce once said that bent...
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It clearly showes in your mockup the thin side of the horn with a smooth bent contour not straight pieces. I have not missed anything from this fiasco. People give you way more credit then you deserve, your horn designs are very crude. Maybe You shou...
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MFA e-mailed me aknowledging that I was perhaps going to try the DIY way getting a "raw" transformer from S&B and offered me assistance. The "problem" is that their unit with a gain selector and load selector is way too expensive for my budget (1...
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Yes, the "tape (or "monitor") loop" is where I (and everyone else...) always put them.Why not ask Guy how he would approach it, maybe get one-stop shopping and probably the best results, too, for both the "loop" and the "box".Would "passive" curves m...
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I also got tired of reading all the DIY posts on the S&B 102. And yes, I have done the numbers, and it would be possible to adversly affect bass with high impedance feeds and/or long, bad cables feeding this unit, coupled to ...
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I do not know what LF you have but, I would be very interesting how this unit will behave in context of a playback with fully developed LF as all of transformer-attenuators should kill bass. Anyhow, I will subdue any my typical criticisms about the t...
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Jessie-There are the current japanese teflon sockets, and vintage american manufactured sockets - I think either should be fine. The pin springs on the OEM pair I replaced had no grip or spring characteristics. When the pin holders are bent, they ...
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