AVP-A1HDCI Balanced Transmission Further Explored
By request, Denon sent me detailed block diagrams of these products that illustrate the fully balanced design. Most companies don’t follow a balanced convention through all of the circuit stages because it adds significant cost and complexity. The advantage of such designs ensures the very lowest distortion and noise floor which were very apparent when I put these units on the bench and conducted my measurements.
The AVP-A1HDCI utilizes two dedicated torroid and separate power supply banks with one being for the preamp output drivers and another being for the DAC sections. Digital audio and video circuitry are isolated on separate boards and are also fed independent post filtered isolated power to ensure the cleanest possible signal paths are maintained throughout the entire design.
AVP-A1HDCI & POA-A1HDCI Block Diagrams
The POA-A1HDCI 10 channel amplifier boasts 4 large E-core
power transformers (2 for + rails and 2 for – rails) and 20 x 10,000uf capacitors
(2 per channel) for a whopping 200,000 uf total power supply storage. When bridging two channels, you are essentially coupling the power supply potential of each mono block amplifier and doubling the amplifiers voltage swing for a dynamic potential of up to 4 times the delivered power into that particular load.
Recent Forum Posts:
one of the top level tech guys from Denon confirmed the SACD bass issue I found 2 years ago with their latest firmware. They managed to get Denon Japan to confirm it too. Hopefully this means they will fix the issue with a firmware release since they broke it sometime in 2010 when they updated the firmware back then. Fingers crossed and I will keep you posted!
thanks. i just hate buying electronics, especially high cost electronics, just to find out that the new model is coming out in a few weeks.......still not sure if i will get the current avp.....
flagbonz;762619
Dude - just get that double hernia fixed! Then order 2 POAs.
I don't have the double hernia.
I have NEVER hurt my back.
I know my limitations.
AcuDefTechGuy;762395
No way. That might scratch the pretty surfaces of the components. No way.
If I cannot lift my amps with my bare hands without any problems and place them nice and easy without risk of scratching the components, then I will not buy the amps.
Like Dirty Harry says, "A man's gotta know his limitations!"
Dude - just get that double hernia fixed! Then order 2 POAs.

