I'll start by saying that I've had extensive experience with other clones such as the NEX, Yobos, FCTwin, Blade, Power, etc. so I'm quite familiar with the usual clone limitations. That being said, here are some of my findings/thoughts on the new NES/SNES clone - the RetroDuo.
- Many classic NOAC problem titles (such as Gauntlet) work correctly on the RD
- The NES PowerPak works on the RD - the only clone to date that does so. This is a HUGE plus.
- the RD does not seem to suffer from SNES NOAC problems (audio, colors i.e. Starfox)
- FX / DSP carts seem to work fine, at least the ones that I have.
- There is s-video output for both the NES and the SNES sides, though the NES s-video has a static 'interference pattern' present in it. Most users would probably choose the composite output which is clean and crisp. s-video and composite output are both active at the same time.
- Video output overall is better than the FCTwin
- Unit has a sturdy feel to it. It doesn't feel like it will twist apart like the Yobos.
- AC adapter is nice and compact, though the cord is a bit short
- NES cartridge recognition/bootup is excellent. Even titles that I previously had problems with (i.e. Archon) work fine and without having to mess about with them.
- Basic NES pad connected via a NES adapter wired to the RD's SNES conectors works fine in NES mode. NES Zapper is not supported.
- Supplied controllers work and feel good, though a bit stiff. Better than the FCTwin packins.
- Mode switch (8/16) is off centered, so cycling through the SNES side isn't necessary every time you want to play a NES cart
- My Tototek SNES flash cart works just fine on the RD. FCTwin also had no issues with it
- Nice small footprint. More compact than even the FCTwin.
- On the NES side some games have a muted melodic / normal percussion quality to them. The worst affected I've found seems to be Jackal, which of course is one of my favorite games. The 'melody' side of the music seems muted, while the percussion is fine; the firing sound is wrong/garbled and the grenade sound is very low.
- FDS is reported as not compatible
- Super Mario RPG versions higher than 1.0 are reported as not compatible
- Hi gloss plastic finish picks up lint and fingerprints like mad, just like the PS3.
Overall I am very pleased with the RD. It does seem to have some odd sound issues that the Yobo/FC didn't have, but the NES compatibility overall is better. It has earned a permanent setup place, replacing all other previous clones and my main NES/SNES units.
Bottom line - though still a bit imperfect, I proclaim the RetroDuo easily the current crowned King of the Nintendo Clones!
EDIT: I've confirmed that in some circumstances weird interference artifacts can be seen in SNES composite video. So I stand by my recommendation of s-video for SNES / composite for NES.
EDIT: The NES audio outputs on the RD are not dual mono, they are the two discrete NES chip sound output lines brought out to the RCA jacks. On the NES audio, one line carries the 2 square wave channels and the other one carries the triangle wave channel, the noise channel and the sample channel. Note that the NES was never meant to have stereo audio, and when you use these two NES sound chip outputs as discrete stereo outputs - some stuff sounds very screwed up. Use an RCA MM/F cable connected to the two audio jacks if you want to have a proper NES mono audio signal.
Edited by remowilliams, Sat Jun 28, 2008 5:02 PM.