Epson AP-60 Sound Enhancement System Product Support Bulletin page 7

2. Then select DSP_code.hex
3. And click Open button to start the Download.
4. Progress bar will display. The firmware update takes about a minute to process the
firmware update. When the following message is displayed, click OK. This completes
the firmware update.
5. To confirm the firmware version, please follow the instructions listed below.
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PSB.2010.01.001