In pro audio, Eminence Speakers manufactures a sub-line of the Beta musical-instrument speaker range that can take compression drivers with a 1-3/8-18 threaded snout, firing them coaxially through the Beta voice coil. Some other speaker manufacturers use the same principle in competing...

This month, my house was gifted a WurliTzer® Model 1800 Multi-Selector Phonograph, a monaural "pay to play" device common to public venues with capacity for fifty-two 45 RPM discs in the 7" size format. The amplifier/power supply module packs nine tubes: one 12AX7 high-μ twin triode, one 6J5...

Classic digital-to-audio converters are a proven technology for audio, both in multi-bit form with sample frequencies in the tens to hundreds of kilohertz, and one-bit delta-sigma-algorithm-based form with switch frequencies in the low megahertz. The latter needs a pseudo-random switching to...

In several discussions offsite I noticed a trend toward securing of Websites against diverse kinds of hacks.  As of December 2016 Head-Fi™ has a "wide open" HTTP login/logout, an obvious vector for snoops.  Some otherwise "wide open" Websites such as SingSnap® have already implemented secured...

While searching for Songs for a possible Audition Entry for a Contest at SingSnap®, I discovered that I was getting ultrasonic noise on the Recorder IFrames' VU meters; I traced it to all analog inputs, indicating imminent hardware failure of the Creative Laboratories® SB0350 PCI 2.0 audio card...

I recently received two Utah® Celesta™ speaker cabinets of uncertain model number, loaded with C12PC-3B cast-frame coaxials (each incorporating a 12" woofer and 3" metal-mesh-guarded cone tweeter).  The cabinets themselves are stout, with a 1.5 cu. ft. woofer chamber and 0.375 sq. ft. front...

As of 25 February 2015 I am investigating two possible 7.1 installations:  One residential audio set-up centered around the new-for-2014 ASUS® XONAR® Essence™ STX II™ as part of a PC audio rig; and one pro audio set-up in a house of worship that will be based on an existing Peavey® FXII-32...

I am currently in the process of refining the search parameters for a headset needed for monitoring outbound audio on an over-the-Internet transmission on an Asus® CM1630-06 equipped with a XONAR® Essence™ STX™ audio card (C-Media® AV-100 DSP, a modification of the stock CMI-8788 to ASUSTeK...

I am currently starting the process of specifying requirements for a new headset to use with my Asus® CM1630-06 with EAH6850 DirectCU® video and XONAR® Essence STX audio.  My current Corsair® HS-1A headsets have decent sound for a budget headset from 50mm transducers; the cable installation...