![]() The photo shows an ADC and an amp chip that only takes digital input and has onboard DSP and DAC. The photo of the amp board of a closely related model in post #136, your description and the remote control of the volume suggest it's actually digital. Given that we see some ADCs and device outputs increase distortion significantly at the maximum, but behave much better a fraction lower, I'd probably dial the device output back a fraction if you can. You would have to do some measurements to be sure what's best, but I expect that's not an option. This probably gives better performance than the analog options to implement remote control would in this price bracket.Īs to the best way to control the volume, the advice to have it high at the device output, and control it on the speaker, is a fair general approach so long as it's not overloading the speaker input. The tone controls are most likely applied using the DSP in the amp chip too. Most likely the microcontroller on the board reads the rotary encoder used for the volume knob, and the remote control, and sends the message to the amp chip to increase or decrease volume. This is increasingly common even in low cost powered speakers. Please be gentle, I'm an absolute noob in this field.Ĭlick to expand.The photo of the amp board of a closely related model in post #136, your description and the remote control of the volume suggest it's actually digital. I'd appreciate any advice you can give me regarding what settings I might use so I have a, as optimal as possible listening experience. I do think the equaliser opens up possibilities for me to at least get decent sound, right now I have chosen for the Vocal setting. I will be using this speaker set mainly for viewing video content on a pc, like youtube and streaming services, Netflix, Disney and Prime. So this is probably the reason I don't hear any treble adjustments. Turns out just above 6200 everything is gone! I'm 70 years old and suffer from severe tinnitus so I thought I'd better do some Youtube test to see what frequencies I can actually hear. Then I remembered, I already mailed the Edifier importer to complain about the treble adjustments on the speaker not working, they replied saying that adjustments where relatively small. I was disappointed with the result, sounded extremely muddy. I then downloaded and installed "Edifier R1280T APO EQ.txt" ( thank you Mikey 76 ). So I stumbled on this thread, registered, and installed apo equaliser and the Peace frontend as per instructions on this forum. I'm not sure if I should hijack this thread or make a new post. Hopefully this process–or even this rough 10 band EQ–can be useful to you. I'll also attach the before EQ and after EQ plots of the speaker that I got with the KRK app.īoth are measured after I adjusted the treble and bass knobs also both are obtained using the bluetooth connection. I do not know the Q factors that Apple Music implements in the EQ. The equalization that gave me the most flat and nice sound was this: I have a mac, and I have yet to find a parametric EQ for macs, so I'm stuck with the 10 band EQ in the Apple Music app that I use. Then I continued playing white noise and adjusted my EQ. First I adjusted the treble (+3 dB) and bass (-2 dB) knobs to get the most flat sound possible. Then I played white noise through the speakers and used the "Spectrum RTA" tool to get a plot of the frequency response of the speakers. ![]() I downloaded the app "KRK Audio Tools" to my iPhone, there's an Android version too. I am fairly new to the audio world, so I'm not very sure if what I did was the most correct thing to do, but it certainly improved the sound of the R1280DB's that I own.
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