$47,000 tube headphone amplifier with just two tubes and a 12v power pack and a 30- day wait time - can this actually work ? 

Jim leSurf is a retired professor of Physics & Electronics  at St Andrews University in this page he talks about Super Tweeters  LINK - and his general audio pages are always fascinating !

This is pretty interesting, I do not have sufficient higher maths to determine if it is correct. If it is correct, perhaps we have a mathematician in the house , then it demonstrates that a DAC should be capable of a perfect reconstruction of any bandwdith limited continuous signal regardless of...

Very sad to hear this today, another icon from my childhood gone and long before his time !   http://www.bbc.com/news/entertainment-arts-33098353

components in the audible range ?

Yo Dudes Hello Chaps, after living here for 15 years the missus and I finally had our citizenship interviews and will soon become US Citizens (yippee !) . we want to retain our old UK passports for travel in Europe (hopefully shorter border patrol lines) . I've been trying to find out the most...

  Author Petit Brun

    So the first order of business was to see how flat the response of each cable was. First I generated a 40 second clip of white noise , I saved this as a Wav file and ran it through a spectrum analyser, this is the reference point. Then I burned the sample to CD and tested...

Every now and again I have the unpleasant duty of dealing with academic honesty problems. Todays classic is the student that sent me a final project that was word for word, mistake for mistake identical to another students submission and:   The other student was the brother of the first...

Our old analog telly is dying and we will have to replace it. The missus wants a 46 inch LG HDTV. Obviously to get HD cable we will need to upgrade our cable box which is non-HD , digital in but SD RF analog out to a 12 year old Toshiba. Probably a stupid question but do new HDTVs even allow an...

As this is the one subforum where at least some informed and rational debate sometimes takes place it might be useful to have a central repository of pointers to good quality resources related to the science of sound. I propose a Bibliography keeping within the bounds of copyright law.  ...

One of my nephews is getting married to a Greek lady in August and they are going to have the big Greek wedding thingy in Piraeus (Athens). The bride and groom want cash instead of gifts and as I understand it you pin it to the bride. We were thinking of giving a couple of hundred quid (the...

One of these files is a bit-perfect rip of a short CD track. One is a digital recording via an Edirol UA-1EX from the optical output of a Marantz CC4300 but is **verifiably** not bit-perfect. The other is an AD recording via an Edirol UA-1EX from the analog output from a Marantz CC4300. I was...

My department chair has just told me that we have a $10K budget (woo hoo !) for software and hardware between the three of us. I need a good reliable stats package preferably with some limited charting abilities for my research. Previously as a student I used SPSS but even the faculty price for...

A while back I did a series of crude tests on Analog audio cables. I am considering a set of tests on Toslink optical cables and am petitioning opinions on my protocol. Equipment ---------- Western Digital HDTV optical output or Marantz CC4300 CD player optical output Edirol UA-1EX...

From : Time on earth: Crowded House: Track One: Nobody Wants to For a while I have thought that my MP3 version (Lame 3.98, VBR 0) sounded a bit rough (distorted) epecially on my WD HDTV. So today I took the MP3(Lame 3.98, VBR 0) and a fresh Wav rip. I used the same Software and PC that I used...

We bought a notebook computer from an Ebay seller in Canada. Sadly, although it was very cheap it was also faulty and so we sent it back. Today it was returned to us undelivered with a note that the seller had moved. The delivery attempt was dated December 2009 and it is now late January, so...

James Johnston's (JJ) segment is especially illuminating... YouTube - Audio Myths Workshop

I am planning a trip to the UK from the USA, to visit family, my Sister-in-law's lodger apparently is an American chap who misses Corn Dogs badly. I went looking for corn dogs but could only find the frozen variety. My journey is likely to be about 16 hours door to door by which time said corn...

I just wanted to shamelessly blow my own trumpet a little bit. Today after seven (count them, 7) long painful years I finally printed off and handed in my Dissertation and got all the forms signed and handed in. I did this with 3 days to spare. On Monday my allotted time would officially...

=============== EDIT Digital Only Please =============== Just out of curiosity. This is just a yes /no question. Whose systems will ***output*** musical frequencies above 22050Hz Bear in mind a bog standard redbook CD player cannot output anything substantive above 22050 since there...

I need a big USB 2.0 flash drive but it must be fast I am constantly moving (annoying just over 8GB) of data between my numerous machines and speed is essential - I do not mind if it is a bit more expensive - within reason of course. TIA

Do they sound the same (in general) ?

Can anyone reccomend a cheap but solid silver analog RCA interconnect of 3 foot length. I have not tested any siilver cables.

measurements consolidated into one post !     Quote: Quote: Quote: Quote:   Quote: Quote:   Quote:   Quote: Quote:   Quote:   Quote:   Quote: Quote:   Quote:   Quote:  ...