stereo_lurker Posted September 14, 2017 Share Posted September 14, 2017 Similar question has been asked before in 2014 but the products are all unavailable now (Belkin FP40/FP60, Monster HDP1750G). The PS Audio stuff is more than I'm looking to spend for this function. I need my AVR to trigger 2 separate amplifiers with its 12V out. One of these amps has a trigger in, the other doesn't. Would this Thor Greenboard B12R do the trick? https://www.thortechnologies.com.au/product/b12r-green-board/?v=796834e7a283 It has some extra filtration/protection features. https://www.thortechnologies.com.au/wp-content/uploads/2016/11/Thor_Green_Board_USB_wiring.pdf?v=796834e7a283 This installation diagram shows that it allows "CONTROL OF SHUT DOWN WITH EXTERNAL POWER (5V DC)" via a USB cable. Will 12V work? Is there a 3.5mm to USB cable that is wired correctly for this or must it be DIY? Regards, Zac Link to comment Share on other sites More sharing options...
stereo_lurker Posted September 14, 2017 Author Share Posted September 14, 2017 I don't trust the simple Master/Slave power strip solutions that are available at Officeworks and Jaycar to handle the high current of 2 amps at load. Also, the threshold for sensing and triggering from the Master seems to be hit and miss (variable). Link to comment Share on other sites More sharing options...
Gee Emm Posted September 14, 2017 Share Posted September 14, 2017 8 hours ago, stereo_lurker said: I don't trust the simple Master/Slave power strip solutions that are available at Officeworks and Jaycar to handle the high current of 2 amps at load. Also, the threshold for sensing and triggering from the Master seems to be hit and miss (variable). Gday What do you base these statements on? Serious question. Link to comment Share on other sites More sharing options...
stereo_lurker Posted September 15, 2017 Author Share Posted September 15, 2017 6 hours ago, Gee Emm said: Gday What do you base these statements on? Serious question. Anecdotal but just personal experience with certain brands. I've gone through a number of Jackson branded remote control mains adapterd in different settings (RF based toggle). 4 of 7 eventually failed within a few months on high draw devices, but seemed ok on lesser appliances. Set up my mum and sister with the remotes so they wouldn't have to run up and downstairs to control their old central vacuums in 3 story townhouse. May have been a bad batch but don't seem to be for sale anymore. *Never checked the spec ratings either so possibly be user error. Link to comment Share on other sites More sharing options...
SimplifiedLife Posted April 23, 2018 Share Posted April 23, 2018 On 15/09/2017 at 12:19 AM, stereo_lurker said: I need my AVR to trigger 2 separate amplifiers with its 12V out. One of these amps has a trigger in, the other doesn't. Did you find a solution? Link to comment Share on other sites More sharing options...
SimplifiedLife Posted April 24, 2018 Share Posted April 24, 2018 (edited) I wonder whether something like this 12v trigger with timer delay would be a good solution? The timer would be useful to protect the speakers, but not really necessary. https://www.ebay.com.au/itm/DC-12V-24V-Trigger-Timer-Countdown-10A-Turn-OFF-Relay-Switch-Delay-Time-Board/112540068859 I've got an electrician mate who could chuck it in a box with some plugs on it. Not sure what the legal requirements are to make sure it is safe and satisfy the insurance company? I wouldn't want something that could be a potential fire or electrocution hazard lying round the house. Edit: I'm wanting to switch on a power board for a pair of active speakers. my pre-amp has a 12V trigger out, but all the active speakers I'm looking at do not have triggers. Edited April 24, 2018 by Randle Link to comment Share on other sites More sharing options...
SimplifiedLife Posted September 29, 2018 Share Posted September 29, 2018 (edited) I found this 12v trigger which is about $60 delivered to Australia and would be perfect to switch on a power board https://www.audiophonics.fr/en/power-supply-kits/audiophonics-trigger-12v-230-v-slave-power-supply-device-p-10661.html (and they also have a 5v version that could be triggered by a Raspberry Pi or something Edited September 29, 2018 by Randle Link to comment Share on other sites More sharing options...
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