Discover the Secret
For Unlocking the Maximum Potential From Your Firestone Audio Components
Easy To Install Op-Amp Upgrades
Every month we receive many inquiries regarding the interchangeable Op-Amps found in the Firestone Audio Components. But if you've every tried to find just the "right one" among the hundreds available you realize its a very daunting task.
So to help make this Op-Amp stuff a lot more fun, we've gone ahead and put together some of the finest Opamp choices for tweaking the tone in your Firestone components. These Op-Amps are universally regarded as the finest sounding available.
So what is an Op-Amp?
Op-Amp is short for Operational Amplifier. In simplistic terms, it's the magic little IC chip inside most of the Firestone components. Its job is to boost the weak input signal to a much stronger signal and ensure this more powerful signal remains an exact copy of the original. It's kind of the Solid State counterpart to the Power Tube in a Tube Amp.
In many of the Firestone components the Op-Amps are changeable, so its something you can swap out to tune and tweak the sound of your component.
Single Channel Op-Amps vs. Dual Channel Op-Amps
All Firestone components use a dual channel Op-Amp to achieve stereo output. Some of the Op-Amps offered on this page are single channel Op-Amps. This means you'll need to use two single channel Op-Amps for stereo output. This requires an dual to mono adapter. Enter the OPA104 Adapter.
The OPA104 adaptor allows a pair of single channel Op-Amps to fit where one, dual channel unit existed before.
The OPA104 adapter accepts two single channel Op-Amps and plugs directly into the original socket.
LM4562 by National Semiconductor
