- Sep 10, 2021
Wow, HPF, sub-out, Multiple settings for the crossover frequency, got it.@Fosi Audio
I'm glad to see that you're responding to our suggestions. If I may offer two suggestions for power amps and one for DACs:
Please offer a High Pass Filter for the main speakers and a sub-out (pre-out that adjusts with the volume knob works too, but line-out that is independent of the volume knob is not good for connecting to a sub). Multiple settings for the crossover frequency and slope is great, but if you had to offer just one setting I'd recommend 80hz at a -24db per octave slope. I have a powered subwoofer with its own low pass filter, but finding a stereo speaker amp with a high pass filter seems nearly impossible!
Second, if you're offering a display on the amp then please allow the user to turn off the screen. A feature where the screen turns itself off after 5 seconds is best. I will not buy anything with a screen that is always on, it's so distracting when watching movies. Also, bright blue LEDs are the worst.
If your DAC uses an ESS chip then please give the user the option to adjust the DPLL setting. If the DPLL setting is too strict, then the DAC will be unusable with certain TVs with high-jitter optical outputs.
How much power do you want?