Jump to content

stereo coffee

  • Content Count

  • Joined

  • Last visited

Community Reputation

99 Good

About stereo coffee

Profile Fields

  • Location
  • Country
    New Zealand

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. When you sign up to proprietary software with a EULA ( End User Licence Agreement ) like this you surrender choice and control and pass that choice and control to the proprietor of the software The answer is to not to do this and use Linux Mint or variants which do not have EULA's . The EULA for the proprietary software you are using clearly states that you allow the proprietor access to transmission of certain information ( without telling you what that is ) during activation, and during your use of the software ( also not telling you what that is ). In computing terms this is referred to as a back door allowing the software to be controlled externally to suit the proprietors needs. Its never too late to reclaim your freedom with computing
  2. You can partition your drive within the install options with Linux Mint https://linuxmint-installation-guide.readthedocs.io/en/latest/ and in the process keep your existing operating system to choose either at the time the computer boots up. Or as others are saying you can run your existing operating system and software within a virtual machine - however you will need the original software to do this. A virtual machine will assume that you are installing the old operating system as if for the first time- so partitioning your drive at the Linux Mint install will keep both your operating system and software as it was running before- might be the better option. Moving to Linux Mint you are escaping the nonsense, and finally being able to use the computer as you wish which must be quite a relief.
  3. Nice project ! A valve amp is usually coupled to a speaker via a transformer, and the transformer then isolates high DC voltage - which has the amplified music signal in it. So a form of coupling is typically needed with valve amps to isolate the DC content. So if you have a transformer isolating DC and coupling signal audio - there will be no need for a further coupling capacitor however the speaker driver you are using looks to be a midrange so in that case YES you will need a crossover network which the capacitor is a very basic form to block low frequencies but pass higher frequencies, the usual values for a midrange capacitor is 6uf a higher value capacitor like 25uf will pass lower frequencies more readily - so assess what the frequency requirements are of the horn speaker if they are 400 hz to 15k - then 6uf is a better value. Hope that helps.
  4. Listening to the headphone you require is a must. Potential telephone number budget's aside, it seems obvious that there is a rather nice $1700.00 saving, by defining if there is sufficient difference between a AKG701 , and others being recommended. Finding out if there are such marked audible differences would be good for other forum members to know as well. Generally from experience price is not necessarily any measure of audio quality, in fact it can be the exact opposite. therein a topic in itself, perhaps for another thread.
  5. ABCDE is a command line very good ripper to FLAC . You will need Linux Mint https://linuxmint.com/ From there go to software manager and install abcde Having installed it can be launched from a terminal just type in abcde - it insists that there is a CD burner attached to your computer. https://abcde.einval.com/wiki/ Command line programs like this are super light on resources, so get all the ticks for best possible audio transfer. I will be giving it a go myself this week, so keep in touch.
  6. Noting that Impedance varies considerably with frequency, and what is quoted by speaker manufacturers is a nominal figure. An extreme example is the Quad ESL57 electrostatic - at 80 hz 33 ohms and at 18khz just 2 ohms. Moving Coil speakers in comparison whilst also varying do so with less variance - the Gale GS401a is an example of a difficult impedance load dipping to 3.5 ohms and as high as 11 ohms at 400 hz . Each speaker are highly regarded. Different again is the MBL101 which embodies different technology being a moving magnet design, its impedance graph is seen in the last image Balanced against this is that conventional amplifiers are arranged as voltages sources, their limitations are in reality limited to ability to drive a loudspeaker cable. Things will begin to get interesting when current drive instead accommodates the ability to control a wildly varying impedance such as the Quad 57- in this regard amplifiers have a long way to go to properly drive loudspeakers.
  7. I have opposite symptoms here, and just loving both attenuation and amplification of music like this https://www.youtube.com/watch?v=FWF_o-MnIAY
  8. AKG 701 I have never regretted owning, they are detailed and very comfortable and get lots of recommendations Some good advice here generally about choosing headphones
  9. If you have concern with the temperature, make an assessment, The rule of thumb literally is if you cannot leave your finger on the heatsink, is its running hotter than 50 degrees C, and if so will need some additional cooling as most forum members are saying. Noting The heatsink temperature should always be hotter than the transistors themselves. With class A you should be servicing every 3 years to ensure there is heatsink compound applied thinly under each of the transistors, then insulated with a mica washer, or if preferably a silicon washer is used then that the transistor bracket is refreshed with heatsink compound at least every 3 years to ensure conduction of heat to the outside heatsink.
  10. As a one box solution Yamaha CDRHD1500 might be worth looking at, its files created are all WAV. inputs are SPDIF Coax and Optical and its own CD burner , and Analog.
  11. You are though not quoting the text, rather an assumption IMO that you have , leading to the conclusion that the article is correct. This summary below in particular is the key to understanding the difference of valve amps vs solid state with regard to the fundamental difference with power delivery. http://education.lenardaudio.com/en/14_valve_amps_7.html Less power delivery, may or may not be a problem for your musical enjoyment but it is important in these discussions, and exemplifies a element of care from one forum member to the next to show the differences with each type of amplifier rather than say nothing at all. Valve amp power is directly proportional to speaker Impedance therefore power increases as the speaker Impedance rises. Solid-state power is inversely proportional to speaker Impedance therefore power decreases as the speaker Impedance rises.
  12. https://www.osbornloudspeakers.com.au/epitome A nominal 4 ohm speaker with bass bins, so not ideal with a valve amplifier for the reasons outlined in the article http://education.lenardaudio.com/en/14_valve_amps_7.html
  13. Can you identify where said inaccuracies are please ?
  14. But which pair ? JBL 4410a- Osborn F1- Tannoy HPD 315a or do you use each at different times. the JBL is a nominal 8 ohm speaker the Tannoy is a nominal 8 ohm speaker and the Osborn F1 has a quoted 4 ohm minimum at 200 hz Each are not ideally suited to valve amps, if you want to use a valve amp with lower impedance speakers you can expect less power delivery than with an equivalent solid state amplifier. That may be a compromise you are happy to accept.
  15. Which speakers are you proposing to use ?, There are fundamental issues how power is delivered with SS vs valve , explained here: http://education.lenardaudio.com/en/14_valve_amps_7.html
  • Create New...