These upgrades improve the quality of the recorded and played backaudio by using new low noise, high performance amplifiers and circuit modifications. In conjunction with these changes is the installation of new, higher performance, low ESR 105 degree electrolytic capacitors in the audio path.

Lower distortion, lower noise floor and higher frequency response are the main bennefits of this upgrade to your 3M M79 Audio Cards..

Finally, every board is then burned in for 24 hours and then the audio perfomance & noise levels are re-tested again.

Once you have placed an order for this service, please send in your audio boards to us via insured Priority Mail, UPS or Fed-Ex. We will let you know when we receive your boards and give you an initial performance report on your boards by email.

When your boards are ready to ship back to you, we will notify you by email and provide you with a shipment tracking number.