Hi Sorry, I'm not allowed to link to other websites. But you're sure to find one on ebay or something if you search for "audyssey multeq microphone". I found one for 44.- Euro with a simple google search. There is also the possibility of using an alternative microphone, but that will probably be more expensive and is not the original. Good luck. Greetings GoldenSkull

The manual doesn't say anything about it, but the listed features fit HDMI 2.0. Besides, the device came out at the beginning of 2017, but HDMI 2.1 only at the end of 2017.

As far as I know, this is the minimum impedance. If the speakers have a higher impedance, it should not matter (I have speakers with 6 and 8 ohms).

Hello, this is not a problem. The amplifier has a power consumption of 570Watt, i.e. 81W/channel, whereby only approx. 70% reaches the loudspeaker = approx. 57W. Therefore no problem. Impedance 8Ohm is also no problem, even though the amplifier is specified as 4-6. This information only refers to Onkyo's power calculation to generate a data sheet. Any loudspeaker with more than 4 ohms can be operated without problems.

Hi, the output is "parallel", i.e. 2 screens can be controlled simultaneously, but only in the same resolution. Windows recognises the second screen as an "Onkyo Receiver", the receiver then loops the signal through to the other screen. What I have also noticed: My AOC Q3279WG5B with 260*1440 can only be controlled properly with a DP-DP cable, and since the receiver does not have a DP input, it cannot process the signal properly. As far as I know, however, it is fully 4K compatible. But I don't have a 4K TV to test it.

In short: yes! In general, a higher nominal impedance (more ohms) delivers less power from the receiver/amplifier. For example, if we look at the specifications for the receiver, the Onkyo here delivers 100W stereo RMS, which is then reduced by 33% to 66W RMS (8 ohms vs. 6 ohms). This does not harm the receiver or the speakers; you simply have less "power".

Yes, they are simply connectors that you have to untwist so that you can push the cable through the hole. I think these are even better than clamps. Otherwise you can put the copper cable in banana plugs and then you can loosen little lids like that on the screw terminals and then put the plugs in.

Yes is possible in principle. The amplifier offers many connection possibilities see products picture and specifications. I recently bought the amplifier and am fully satisfied.

Sure! I have also set up a 5.1 system. The automatic calibration including equaliser setting with the measuring microphone is fun. measuring microphone. So far thrilled with this box! (for the price)