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The specs are well known. What's your point? The stop band in the datasheet and in Amir's measurements is a truly mediocre -60dB as well. The PCM510xA series must be really inexpensive to implement since they have a single-ended output and appear to not require an opamp output...

The information in the link is correct, same mediocre TI DAC IC: X3800H, X4800H, X6700H. Also TI DAC IC in the similar, but more expensive, Marantz Cinema 50, 40, 30 units although Marantz is less forthcoming with this information.

You are assuming 100% efficiency. That is nonsense. 50% to 60% is more likely. Accuracy to .33 is nice however. Something like 35W to 50W per channel is more realistic in the real world.

Why?

Unfortunately, you read and replied to a thread that has some bad information in item #3. That is, the #3 is wrong. To quote #3: "3. The Denon 4700 "pre-out" RCA's are always live no matter what amp assign mode you select. The difference between using "Pre-out ONLY" mode from any other...

An example of manufacturer guidance: From the Marantz AV 10 User Manual, Page 43, concerning its XLR outputs: "Do not short the HOT and GND or COLD and GND for use." This means don't connect pin 3, the (-) pin, the COLD to ground at the RCA input, or anywhere else for that matter. This...

Marantz implemented an improved version of the SA2 HDAM's with current sources when the SR8015 was initially introduced. This, and improved circuitry following the AKM DAC IC's that drove the opamps into Class A operation, resulted in the improved measurements. When the SR8015 was updated...

Your post included in reference to the X8500HA: I have not seen one mention on the marketing material of the DAC chip used, none. The post shows Denon marketing material that includes in which DAC IC is used in which AVR.

Try this for the X6700H. Of course, since you don't yet own an X6700H that's a big hard! The manuals aren't very helpful. Onward: Use the online manual as a reference, the .pdf version doesn't provide the same information. https://manuals.denon.com/AVRX6700H/NA/EN/DRDZSYasydxfyy.php...

In models below the X8500H and the upcoming A1H spending more delivers very little more in the amplifier muscle category or preamp quality. Selection between these models should likely be done based on features. Price is also important; most people believe they are getting a better product...

Summing signals for the bass channel The post you have referenced isn't very well written since it doesn't document the setup conditions. Your post and the reference post do seem to reflect a lack of knowledge in how bass management works in Denon equipment. First to your question: The...

(1) Yes Appears to use NJM4556AD op amp taken from HDAM output, maximum output voltage not obvious however +/- 12V supplies to op amps, output impedance 100/3 = 33 ohms Rusty on op amps, gain appears to be 2.2/1 + 1 = 3.2x relative to SE output of AV8805 L or R

Get the thing fixed and then sell it. Electronics aren't a marriage. There is little paperwork involved to eliminate the problem and a short waiting period until the unit is history. You can even keep your dog, no negotiating required.

How is this relevant?

The power amplifier channels can't be turned-off. The preamp channels can be disconnected from the power amplifier channels. Either all of the preamp channels can be disconnected from the power amplifier channels or alternatively just the front two front (left and right) preamp channels can...

It seems likely that essentially no one has seen or heard a normal tank firing a mortar at a motorcycle.

You've changed the subject. Where are all the valid double-blind tests? You are just speculating on the results without results. Your position without valid data is just a subjective as those who provide their subjective results.

AKM DAC IC's to Return As noted in another post, per a news release from AKM a selection of samples of AKM DAC IC's are now shipping with mass production promised in the third quarter of 2022. https://www.akm.com/us/en/about-us/news/2022/20220131-velvetsound/ Since most Denon products aren't...

As another data point, in the picture of the two DAC boards the board labeled X6700H is a picture of the DAC board in the X6500H. The X6700H never used the board shown in the picture. The original board with the AKM AK4458 DAC IC's for the X6700H (V1) looks very different from the X6500H...