Hi All, just wanted to share with you what I have found out on this and what I intend to do. a) because its interesting, b) cos it is no where else on the net and C) cos if I am wrong hopefully some one will point it out to me ;-) So my AVR, Sony STR DN1050, doesn't have pre outs.... too much hassle to buy a new one and I like sony and none of them have pre outs, so I want to create some on my avr.... I found the old schematics online.... and as you can see from the second photo (page 54), I have found the chip that handles all the source switching and volume control.... it is IC421 which is a BD3470KS2 (this took a fair bit of time as I had no familiarity with the drawings.) This is usually the point people mention to connect to. Older boards had physical connections and components to handle volume control, but more modern AVR's have it all in a chip. If you look to the bottom right of this pic you will see Sub woofer audio out (pre out) and if you trace it back you get to pin 15 on the chip. (The Legend shows that a red arrow without fill, is analogue audio rather than digital) Next to that is OUTFR and OUTFL (13 and 14) and these are the Audio (pre - power amplification) connections that get fed to the power amp section. If you trace these lines up you get to connection 20 & 19 which go to another part of the main board (on page 51). The first pic is of page 51 and on here (bottom right) are connections 19 and 20 (from OUTFR and OUTFL which are fed into all the power Amp components...... obviously I want 'Pre' outputs, so just before the power amp stage, so I need to connect somewhere between pin 13/14 of IC421 and the power amp components for FR and FL. now it is not a good idea to solder to the pin of a chip (might damage the chip) so I have looked for a suitable point and on Page 51 you can see the OUTFR (connection 20) hits a 10uF capacitor and then goes to R787. On this board these resistors are mounted standing up so if I solder to the top of this Resistor I will have my Front right Pre out point. Do the same for OUTFL and pick an earth point. Connect cables, twist and feed outside of the case (may do a more permenant solution later) and bingo you have pre Outs. These need to be RCA connectors (female in the future for a more fancy solution, actually screwed through the back panel somewhere) and I can plug direct into my Integrated Amp as a source to feed the speakers. I was thinking of putting in some fancy circuitry, as in the sub woofer out circuit, but this new connection is not a floating point and is taken past a 10uF cap (to avoid any dc pass through) so to be honest it doesn't need it. I might add a 1kohm resister in series with the output (as with the sub woofer connection) just to help with loading but not sure yet. I am downstream of R787 which is a 1kohm resistor so I don't think there is a need. This will do away with any need, mentioned in a previous post, for speaker cable switches and means I can listen to powerful sounds from my avr but also to stereo music from either my avr or my other sources CD player etc, If you have any further thoughts feel free to let me know.