Has anybody experience with SFX6 sound module fromModel Solutions?

1. are any sound demos or sfx4 files are available /except the files on their webite/
http://www.modelsolutions.ca/soundclips_tanks.htm

2. is SFX6.4 module transparent for throttle 1,2 signals from reciver ? or is it needed to split this signals (for SFX6 and ESC) using Y type cable? My receiver is supplied from Elmod ESC (BEC) by 5V stabilized voltage

3. what is the power of an audio output for DC supply voltage =12V ?

4. Is an external LOW VOLTAGE AUDIO AMPLIFIER needed?
http://www.modelsolutions.ca/catalog_sound_systems.htm

5. they said that the minimal supply voltage needed is 10Vwould 12V be enough?

6. Is SFX6 module working with any rc system - I use Graupner R-700, 35 MHz receiver

Thanks