Ferrofluid was patented by NASA in 1963 as a technique to move liquid propellant in the low gravity of space. Pumping fluids that do not stay at the bottom of a tank by gravity is not easy.…
Are we out of our depth?
Depth is the most difficult of the three dimensions to record and reproduce in a music system. With good stereo recordings, the left/right location of the performers can usually be…
The Early Days of Ohm
Marty Gerstein started Ohm to bring Lincoln Walsh’s technology to market. Marty was the Chief of Engineering at Rectilinear Research in the Bronx. He also hosted a show on public radio…
Two New Models in 20/20K Series Walsh Speakers
BROOKLYN, NY – Ohm Acoustics has filled out its new line (20/20K Series) of speakers with the introduction of the Super Walsh 3.3010 and Super Walsh 4.4012 models. All models have a…
Sound Pressure Levels in Live Versus Recorded Music.
I prefer acoustic music played without amplification – particularly the human voice without microphones and PA. Luckily, we all listen to spoken voices every day and have learned from…
Headphones: Imaging & Danger
Headphones: imaging and hearing loss. “Head Monster” Noel Lee is rumored to have told Beats founders Jimmy Iovine and Dr. Dre, that ‘Headphones are the new speakers.’ The sales…
