28-02-2020, 05:42 AM
What Hi Fi said of this Dyad USB speaker design in 2010.........….
The DyadUSB module, which is supplied to manufacturers as a package with two 4cm square BMR drivers, is said to give hi-fi quality from compact, computer-powered speakers, thanks to the option of "on-chip digital filtering for acoustic voicing, bass enhancement, stereo widening as well as driver protection, and implementation of a Zobel network to accurately match the driver’s inductance to the amplifier’s output drive".
Meanwhile the amplifier is designed for minimal power consumption, thus reducing its impact on the computer's battery life: it's said to be up to 20x more efficient than competing designs. It uses power rail switching to operate on a low voltage most of the time, with a boost regulator to deliver more voltage to the output transistors for musical peaks.
There's already one speaker system on the way using the technology, from US company SoundScience Corp. The QSB uses two small cube speakers, plugged directly into the USB port, and complete with a built-in microphone for use with Skype and messenger programs.
! Visit WhatHiFi's UK editi
The DyadUSB module, which is supplied to manufacturers as a package with two 4cm square BMR drivers, is said to give hi-fi quality from compact, computer-powered speakers, thanks to the option of "on-chip digital filtering for acoustic voicing, bass enhancement, stereo widening as well as driver protection, and implementation of a Zobel network to accurately match the driver’s inductance to the amplifier’s output drive".
Meanwhile the amplifier is designed for minimal power consumption, thus reducing its impact on the computer's battery life: it's said to be up to 20x more efficient than competing designs. It uses power rail switching to operate on a low voltage most of the time, with a boost regulator to deliver more voltage to the output transistors for musical peaks.
There's already one speaker system on the way using the technology, from US company SoundScience Corp. The QSB uses two small cube speakers, plugged directly into the USB port, and complete with a built-in microphone for use with Skype and messenger programs.
! Visit WhatHiFi's UK editi
