This is one of the most unusual tweaks we have developed.

We place a tuning fork tuned to low C, about  128 Hz on the metal uprights of our racks. It really helps the sound, making things sound noticeably clearer and focused.

Apparently tuning  forks will start to vibrate if their resonant frequency is present. A 128 hz fork is set about double the line AC frequency (60 Hz in the US and North America). Since many forks have tuneable hammers, I moved mine out a a bit to get a range closer to 120 Hz, double the line AC. The 120 Hz is actually the fundamental resonant frequency of the rectified AC.

The resulting  sound is clearer, more dynamic  and reveals finer nuances in the music. Apparently the forks actually absorb some of the 60 and 120 Hz resonance and in dissipating some of that energy into the air, pulls that energy from the components themselves.

This was discovered by accident as I was experimenting with something I had read on the net, whereby one could place a tuning fork against a speaker cabinet  while playing music and when the fork started to resonate, it would indicate where damping was needed. The idea didn’t work for me, maybe because I wasn’t using a steady test tone, but in placing the forks in the ends of the rack for convenience while experimenting, I noticed that the sound had improved.

These forks are a part of every doctor’s little black bag, and they use it to test for skull fractures, apparently. Very few ever use it today and maybe if you ask your physician, he may give his to you (if he can remember where he put it !). Average cost seems to be about $5 to $6.

It works best close to components with the largest transformers: typically the power amps. But it does work everywhere…..

The power transformers which form the heart of many components, all work off the 60 Hz line voltage. Thus many metal type racks are then magnetically coupled, via induction, to the line frequency. This magnetic induction can be significantly reduced by placing small magnets on the various bars of a rack. This will resist the flow of magnetic fields and confine them to a smaller area. Again in reducing the magnetic induction, the result is superior sound; better detail and nuance.

Magnets are NOT recommended on Turntable stands, however, as the cartridge will be affected by the magnetic field of the magnet.



Twitter of a Cereal Killer

  • I love Dropbox because it is easy to use, easy to share stuff, easy to upload photos from my phone. db.tt/p5VJ3PCt 3 years ago
  • @BFMradio charcoal tab=activated carbon which absorbs toxins. Charred food are not carbon, they are carcinogenic chem eg HCA, acrylamide. 4 years ago
  • @BFMradio Great job, Boey. Love your comic! 4 years ago
  • @BFMradio Mira:the natural T in women tak cukup to turn u into Arnold. If u train hard enough, u'd probably look like a gymnast. =) 4 years ago
  • Bulgarian split squat is the most taxing exercise I've had to endure. It's a battle! 7 years ago
  • Hangzhou-lites go for IV drip during hi fever or sorethroat. -_-" Aiyoh, just drink lotsa 100 Plus and gargle saline water lah! Duh! 7 years ago
  • Got an earful from my superior. My right ear (was on the phone) is still ringing w/ her voice. Is it ok to hope that I get fired soon? LOL! 7 years ago
  • Just came back from HZ Hash Hound Harriers. Woooo, that was fun! I should so join again next week. 7 years ago

iamyuanwu’s fitness

Simplefit Level 6 day 3 = 14min 12s (12 Sep, Fri)

Hundred Pushups = Week 3 day 3 (13 Sep, Tue)

Stronglift 5x5 = temporary hiatus. Someone help me kick start plz, I mustn't waste the free Fitnesss First membership!

BN/UMN0 pisses me off!


Sep 05 BN MPs go 'study tour' to prevent them from jumping ship. X^D Stupiak tactic.
Sep 04 DrM 老马's seditious blog post <--click) inciting Malays to go amok. Told you DrM is evil.
Aug 29 Ahmad Ismail called me a bl00dy pendatang & do not deserve equal treatment. WTF?!

Lies... Damned lies... and Statistics

  • 108,134 have been victimised
Page Ranking Icon  

%d bloggers like this: