HI
Now I just want to change Denon 2106 to marantz sr 7003 or yamaha 2800,or pioneer 1018 or denon 2809 if come with GUI so please advice me
All the models you have mentioned are good. But since you have been using a Marantz, I would recommend you upgrade to a more advanced version of Marantz itself. That way you will get the same sound you are used to, with better controls, and video. The 7000 series has the following important features:
* THX® Select2 Certified
* 110 Watts x 7 Channel All Discrete Amplifier Stage
* HDMI v1.3a Repeating/Switching: 4-In/2-Out
* Dolby® TrueHD, Dolby® Digital Plus, dts-HD? Master Audio
* Deep Color, xvYCC and SA-CD Support by HDMI
* Up-Conversion (w/TBC) to HDMI with 480i/480p Converter
* M-DAX (Marantz Dynamic Audio eXpander) for Compressed Audio
* Audyssey MultEQ
Cheers