The information for the Opticis optical cables is very confusing. There are three models listed at their website (http://www.opticis.com/english/02_product/product02.htm
), plus a new one at the US distributors website (http://www.vitextech.com/hdfx-200-one-fiber-detachable-hdmi-extender.php
a) HDFX-100. Pure fiber optic connection. Requires an adapter box at each end, each with its own +5 volt power supply (cannot send power down the optical cable). The power consumption is not specified. The system is supplied with two 5 volt @ 3 amp switching wall warts. There is no indication that this much current is actually required. If this power could be supplied with linear power supplies at each end (I would recommend some Agilent benchtop supplies from eBay) this would potentially be the very best solution. Requires a short conventional HDMI cable at each end to connect to the adapter boxes. US retail = $1500.
b) HDFX-200. Apparently not yet available, it is a slicker, more compact version of the above. Again, no mention of the actual power requirements. No price is given as the unit was just recently announced.
c) M1-2RH-TR. Similar to the HDFX-100, but a hybrid fiber/copper system. Fiber is used for the video/audio signal, and copper is used for the DDC, power and other functions. Power required is +12 volts at 200 mA for the transmitter and 300 mA for the receiver (500 mA total). There is no way for this to be self powered. US retail = $600.
d) M1-2000. This is probably the one to get without going completely overboard with the HDFX-100 (or 200) and tracking down two high quality linear supplies. Does not require additional short HDMI cables, as it plugs directly into the equipment. US retail ranges from $400 for 10 meters to $950 for 50 meters. The thing that is unclear is the power required. The user's manual says that "most" devices can supply enough power for both ends (carried from transmitter to receiver by a copper cable) and the unit comes with a +5 volt @ 1.0 amp switching wall wart to supply both ends. The datasheet contradicts itself. In one place it says that the source component must be able to supply 500 mA, but elsewhere it lists the consumption as 170 mA for the transmitter and 130 mA for the receiver (300 mA total). The Ayre DX-5 should work fine with this, AS LONG AS the unit is modified by removing the current limiting resistor.
As noted previously, I have only tried the DVI version (actually a Sumitomo product, but it used the Opticis electrical-to-optical modules). It was a hybrid cable and provided better visual quality than any other cable of that time. I would assume that the copper cables have improved since then. I would also assume that the pure optical would be better than the hybrid, as long as one used it with linear supplies at both ends. It is relatively cheap to try the M1-2000 and relatively expensive to try the HDFX-100 (or 200). All of the above solutions provide much greater "reach" than any copper cable.
Ayre Acoustics, Inc.