What Matters and What is Nonsense


I’ve been an audiophile for approximately 50 years. In my college days, I used to hang around the factory of a very well regarded speaker manufacturer where I learned a lot from the owners. When I started with audio it was a technical hobby. You were expected to know something about electronics and acoustics. Listening was important, but understanding why something sounded good or not so good was just as important. No one in 1968 would have known what you were talking about if you said you had tweaked your system and it sounded so much better. But if you talked about constant power output with frequency, or pleasing second-order harmonic distortion versus jarring odd-order harmonics in amplification, you were part of the tribe.

Starting in the 1980s, a lot of pseudo scientific nonsense started appearing. Power cords were important. One meter interconnects made a big difference. Using a green magic marker on the edge of a CD was amazing. Putting isolation dampers under a CD transport lifted the veil on the music. Ugh. This stuff still make my eyes roll, even after all these years.

So I have decided to impart years and years of hard won knowledge to today’s hobbists who might be interested in reality. This is my list of the steps in the audio reproduction chain, and the relative importance of each step. My ranking of relative importance includes a big dose of cost/benefit ratio. At this point in the evolution of audio, I am assuming digital recording and reproduction.

Item / Importance to the sound on a scale of 1-10 / Cost benefit ratio

  • The room the recording was made in / 8 / Nothing you can do about it
  • The microphones and setup used in the recording / 8 / nothing you can do about it.
  • The equalization and mixing of the recording / 10 / Nothing you can do about it
  • The technology used for the recording (analog, digital, sample rate, etc.) / 5 / nothing you can do about it.
  • The format of the consumer recording (vinyl, CD, DSD, etc.) 44.1 - 16 really is good enough / 3 / moderate CB ratio
  • The playback device i.e. cartridge or DAC / 5 / can be a horribe CB ratio - do this almost last
  • The electronics - preamp and amp / 4 / the amount of money wasted on $5,000 preamps and amps is amazing.
  • Low leve interconnects / 2 / save your money, folks
  • Speaker cables / 3 / another place to save your money
  • Speakers / 10 / very very high cost to benefit ratio. Spend your money here.
  • Listening room / 9 / an excellent place to put your money. DSPs have revolutionized audio reproduction
In summary, buy the best speakers you can afford, and invest in something like Dirac Live or learn how to use REW and buy a MiniDSP HD to implement the filters. Almost everything else is a gross waste of money.
128x128Ag insider logo xs@2xphomchick

phomchick:

Haven't used the REW/JRiver combo since I upgraded to the 64 bit version. Do you mean that REW will do an automatic dump of the EQ value (after you make the corrections) directly into JRiver? In the past have had to insert these by hand into Apqualizr and it has been dreary.

Am now using JRiver in connection with RME ADI-2 DAC to upsample CDs to 768khz; the result is astounding, even better than the 192khz I was using earlier. Give this a try if your DAC will support it -- even if it sound illogical. Don't forget to select the SoX upsample option in the audio menu.

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@craigl59
You can export your filters from REW and import them into JRiver.
After creating the correction filters in REW, export them as a WAV file
File -> Export -> Export filters impulse response as WAV
Choose "stereo" the right and left filter you want to use, a bit level and sample rate (I use 24-bit and 48000)

Then, in JRiver, import the filters...Player -> DSP Studio
click Convolution, browse to the WAV file you saved from REW, and that is it.
phomchick:
Thanks; this is very clear and, as you certainly know, a very powerful way to tune your room.
One more thing, I use “Generic” when creating the filters in the REW EQ module.