Most of the audio amplifier
designs being built today were first developed in the 1950's and 60's. This goes for just about all of the designs being built these days by equipment manufacturers. In the early 80's, we pioneered a high
bandwidth, high impedance design, which we used until 1988. It sounded great, and we built it using an integrated circuit.
This design served well for many years, but there is something new happening in the 90's
that can affect their performance. There are now millions of pagers, cell phones, and communications satellites. Not to mention wireless microphones, and stacks of digital gear just about everywhere.
Stray signals from these have become more and more intense with each year. They can get into a sensitive, high bandwidth power circuitry. Usually, the results are inaudible. But there can be things going on
behind the scenes that upset the control of a high bandwidth design. This can cause a power reduction, inaudible signals within an amplifier, and other effects.
Enter our new high bandwidth, LOW impedance
design. It retains all the definition and clarity of our earlier designs, but without ultra sensitive, high impedance circuitry that can receive stray signals from outside sources. Our new circuits
resist the signals being broadcast from thousands of sources at once. And at the same time, we actually managed to make the sound a little bit better.
After all, since we decided to make a technical
improvement, we went a little further and make improvements to the sound as well.
