Everything posted by dsavitsk
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Prototypers wanted
I think you and are going to have to fight it out.
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Prototypers wanted
For those following this thread, short kits are available ... http://beezar.com/ca...products_id=142
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Audeze LCD-2
Posts like this are why I stopped reading at that other site ...
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Audeze LCD-2
4-pin XLR has 4 pins + a ground connection.
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what is the accepted standard on balanced terminations from source to amp?
Generally, people use male on the source, and female on the amp.
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Audeze LCD-2
I am a strong believer that the difference between tubes and solid state has much less to do with actual differences between tubes and transistors, and much more to do with amplifier topology. The amps you mention will all have a non-0 output impedance, and I would wager that that is what you like about the combination. Unless there is an issue with the design, tubes do just fine at amplifying high frequencies well past human hearing. But, the interaction of the higher impedance amp with the impedance curve of the headphone driver, to me, leads to the warmer, punchier, sound.
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Audeze LCD-2
First time I heard them, I agreed. After playing with them a little last weekend, my sense is that to my ears they, like Grados, do much better with an amp that has a non-zero Zout. High feedback just seems to lead to over damping, but run them with something that has a Zout around 10 Ohms and they warm up nicely and gain a little punch. The LCD's sound pretty nice, but I can't get past how heavy they are.
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Printing FDF files
A friend of mine was hired as a temp many years ago doing data entry. The position was supposed to last 3 months. However, being a computer programmer, he found a way to automate the process, which took him all of a day. Once it was done, he was laid off. Maybe check out ReportLab. Or, for more hands on, use ADO from a scripting language (Python or something) to grab data from XL, put it in the form, then use a shell command to print. Then do it again.
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Wireless speakers to use with a Mac
I think I'd get an Airport Express and a Tivoli, or just a small powered speaker if you don't need the radio.
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Audeze LCD-2
The consensus seems to be that it is BC. The question is whether it is all nonsense or not. I have no opinion on that, I thought Bud's posts were interesting (Bud makes Onetics transformers).
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Audeze LCD-2
http://www.diyaudio....candy-ebay.html see posts 50, 56, 57, etc.
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New Forum Software
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Yet Another Digital Camera Recommendation Thread
The Fuji really looks like the winner and worth waiting for. It is amazing to me that a shutter speed knob on the top and an aperture ring on the lens would be such a novelty. Maybe Zeiss will come out with a digital Ikon ...
- slower forum
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Happy Birthday Donald North!
Happy Birthday, Donald!
- Audeze LCD-2
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Audeze LCD-2
I've got a tube push pull Gm amp for headphones. Maybe not quite what you are looking for, but might be OK. Also, digger945 has one, I think.
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Yet Another Digital Camera Recommendation Thread
The Fuji looks really neat, but I agree that it is a little too idiosyncratic. Too bad, really. I'll check out the Sony, though the combination of Sony and Minolta is not something that inspires a lot of confidence. But, I'll go in with an open mind. Thanks for the suggestions.
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Yet Another Digital Camera Recommendation Thread
Sorry if this is repetitive. I am looking for a new camera. I have pretty specific wants and I have thus far not been able to find what i am looking for. The background is that this will be replacing my trusty Contax G1, and I basically want that camera with a digital back. So, I would like digital, interchangeable lenses of good quality, compact (mirrorless most likely as SLRs are too bulky), a system that won't become obsolete, etc. More specifically, I want to control aperture and shutter speed "mechanically" meaning I don't want to toggle through an LCD screen to set them. Bonus points if the aperture control is a ring on the lens. I also am primarily interested in fixed focal length lenses as 95% of the time I'll use the equivalent of a 35mm F/2.0 for a 35mm camera (the other 5% I'd want a 90mm equiv macro). I would also love the ability to manually focus. I don't care about stabilization, video, stitching together panoramas, reducing red eye, flashes that pop up, or any of that. Just a good sensor, and good glass. The obvious "right" answer is the M9, but it is too expensive by a factor of about 10. Does anyone else make anything that fits the bill?
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Travel Mugs?
Travel mugs on Woot (12/02/2011): http://www.woot.com/
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Recommendation for Toilets
I saw a little kid use a floor model toilet at Sears once.
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Happy Birthday FallenAngel!
Happy Birthday, Pavel!
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Happy Birthday Aura!
Happy Birthday!
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ecp audio
I am pleased to announce two new headphone amplifiers from ecp audio: the DSHA-1 and the L-2. The DSHA-1 is a fully differential (balanced) solid-state headphone amplifier. Designed for exceptional synergy with Grado headphones, it is an excellent choice with other dynamics as well. It is extremely clean, clear, and detailed yet tube-like in its warmth. The unique differential topology uses Lundahl amorphous core input transformers to provide noise free voltage gain (selectable to 6dB or 12dB) and high CMRR (better than 120dB at 60Hz), and MOSFET source followers for output power. The output is transformer coupled: eliminating capacitors from the signal path and allowing the DSHA-1 to work equally well with balanced and single ended headphones. Further, the differential nature of the DSHA-1’s circuitry isolates the signal from the power supply. In addition to an exceedingly quiet amplifier, this means that bass transients are not powered from large capacitor banks, and mids and highs do not pass through noisy electrolytic capacitors. The L-2 is a single ended “spud” parafeed tube headphone amplifier for dynamic headphones developed out of the L’espressivo line of DIY projects. As a single ended tube amplifier utilizing a single 6S45pi tube for both voltage and current gain, the L-2 has the musicality and liquid clear midrange tubes are known for. However, because of the novel shunt-regulated biasing arrangement, the high performance plate load, the short signal path, and the extremely high quality parts used throughout, the L-2 surpasses the usual limitations of the SET topology. It excels in dealing with complex musical passages and heavy bass notes. Further, the L-2 is so quiet that even with sensitive headphones, you cannot tell whether it is on. There is no hiss, no hum, just quiet. The L-2 uses Lundahl input transformers, V-Cap parafeed capacitors, and custom designed, nickel-core, Electra-Print output transformers with both low (32 Ohm) and high (300 Ohm) impedance taps. All of our amplifiers are craft made in small batches and hand assembled in Chicago. The woodwork is hand made from sustainable stock at Pickett Furniture in Brooklyn, NY, and the metalwork is machined and finished in California. The DSHA-1 is available from $1995 shipped in the USA, while the L-2 starts at $2495. For questions, please email [contact at ecpaudio.com], or use the contact form at www.ecpaudio.com. More information is available from www.ecpaudio.com
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Zana Deux Problem
Sounds like something in the heater supply came loose during shipping. Since both sides of the tubes failed together, my best guess would be that it is likely a wire connecting to the regulator. If you know a decent tech, it may be something that can easily be repaired.