Computer Amplifier
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 GN Netcom Jabra GN8050 TCA telephone computer Amplifier P N 01 0125  US $119.95
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 MX10 Plantronics Computer Phone Amplifier US $102.99
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 Jabra GN 8050 TCA Telephone Computer Amplifier US $91.23
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 Jabra Corporation 01 0125 TCA Universal Computer and Telephone Amplifier US $79.95
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How Tiny Will They Get? - The Latest Super-Miniature Audio Power Amplifiers
Newest types of super-mini audio amplifiers show the continuing trend of miniaturization of consumer devices such as cell phones or computers. While the features are growing, the size of today's consumer products is getting smaller and smaller. In the past, tube amps would be commonplace and take up a big part of the living room. Tube amps still have their fair share of fanatics. Nonetheless they have been replaced by solid-state amps for the most part.
While traditionally there would be separate pre amp and power amp stages, today's solid-state amp combine everything into a neat package no larger than the size of a VCR. A new generation of super-miniature amplifiers, such as the Amphony Model 100 microFidelity amp, has become feasible due to new developments in audio technology concerning power efficiency. Even though these amps are as small as a deck of cards, they are able to deliver up to 50 Watts power and easily drive a speaker to full volume.
"Class-A" and "Class-AB" amplifier topologies were the two crucial amplifier architectures of historical audio amplifiers. These technologies have rather low power efficiency. Only a small part of the consumed power - typically in the order of 20% to 30% - is in fact converted into audio by analog amplifiers. The remaining portion is radiated as heat. Therefore analog amplifiers require a reasonable amount of cooling. The amount of cooling depends on the amplifier rated output power. These heat sinks prevent the amplifier to be built into a small form factor.
Digital "Class-D" amplifiers offer higher power efficiency than analog amplifiers - usually around 80% to 95% - and thus can be miniaturized. "Class-D" amplifiers utilize a switching output stage. This stage introduces nonlinearities which causes audio distortion. This difficulty has had an impact on the triumph of digital amplifiers.
Newer amplifier technologies have emerged such as "Class-T" and newer "Class-D" architectures. These technologies, such as the one used in Amphony's Model 100 provide for a feedback of the output signal to the amplifier input. This feedback allows the amplifier to compensate for nonlinearities of the output switching stage and therefore lower audio distortion to similar levels of analog amplifiers while preserving the audio efficiency of digital amplifiers.
These new generation miniature audio amplifiers open up applications where traditional amplifiers would fail, such as speaker installations where space is premium, including in-ceiling speakers and applications that connect speakers to a cable box or DVD/MP3 player.
Can someone help me with this computer problem?
My computer amplifier speakers of late have been producing this funny squeky sound and sometimes suddenly loose sound. How can I solve this problem so that there is a proper sound again?
the only thing i can think of is to open your audio properties and Mute your mic and also your Cd player
Talking Tech: Four Terms You’ll Need To Know To Keep Up With The Digital Elite (Deadline Hollywood)
The 2012 International CES isn't just an opportunity for the digital
cognicente to look at new gadgets. It's also a chance to brush up on the
latest industry jargon. Don't let it throw you. If you know the following
words and concepts, then you should be able to easily hold your own in a
conversation with someone returning from the annual consumer electronics
spectacle in Las Vegas: **Ultrabooks: **These are what you get when you cross
a laptop computer with a tablet, and they're grabbling the lion's share of
attention at the 2012 International CES. Ultrabooks are thin and light; most
use solid state hard drives instead of the traditional storage drives built
around a rotating disc. Intel is leading the cheerleading squad for
ultrabooks, which it hopes will reenergize the laptop computer market. **4K:**
This video technology is still ahead of its time for consumers, but won't be
for long. The hype is that 4K images are spectacular because they have four
times the digital information that you’d find in a good HD TV set – about 8.8M
pixels vs 2.2M. Until 4K discs or channels arrive, the technology is being
touted as the best way ...
How to connect a car sub/amp to your computer pt. 1
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