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hi guys i got this amp less than a year ago and for some reason when i turn the volume up to about 40 to 50 the amp shows the sign protect ? 15 May 2014
Would it not be down too volume safety control, it's a bit like wearing headphones you sometimes get a warning saying listening to something too loud could damage hearing, i've not experienced it myself with the amp as i've never had it louder than 14 (neighbours) lol, hope that helped.
Hi Jodie, I purchased this exact same amp on Amazon (Sony STR-DH520 7.1 Channel DH Series 3D A/V Receiver) in October this year...it's an amazing piece of equipment but requires a few hours of your time to get properly set up. For a subwoofer on this particular amp it would be best recommended to use a powered subwoofer rather than a passive or active one. The difference between the three: A PASSIVE subwoofer requires an amplifier to power it which would not benefit this Sony amp as it has a lot of other features crammed in like HDMI, BD/3D support, plus its a video receiver as well as an amplifier...it would work if you used a passive subwoofer on this amp however the sound result may be dissapointing as this amp could possibly over-heat and get damaged because you will be powering the subwoofer as well as the amp to 1 plug. An ACTIVE subwoofer usually has its own amplifier built-in which can be used on many amps...usually these kinds of amps are used for home cinema surround system packages. A Powered subwoofer is a standalone subwoofer which you can buy on their own and in my opinion, these types of subwoofers are the best to use for this particular amp - this is because powered subwoofers use their own power directly to a plug socket, all you have to do is buy a subwoofer cable (this could be coaxial or optical - for this Sony amp the subwoofer output is Coaxial, you can pick up a decent 2 meter sub cable compatible for this amp on Amazon for under a fiver - I'll post the link at the bottom)...so all you have to do is get a sub cable, connect one end to the sub and the other into the sub output jack at the back of this amp. if you plan to use the Auto-Audio calibration on this amp once you have all your speakers set up, its best to turn the subwoofer's volume all the way up during the calibration to get the best effect and results. I hope I have explained this to you in a way that is understandable, here are some links to help you further: http://www.ehow.co.uk/about_6719585_passive-subwoofer-vs_-powered-subwoofer.html - difference between the 3 types of subwoofers http://www.amazon.co.uk/Pure-Shielded-Subwoofer-Cable-Gold/dp/B003PU4VTS/ref=sr_1_18?s=electronics&ie=UTF8&qid=1386897732&sr=1-18&keywords=sub+cable - subwoofer cable 2 meters http://www.sony.co.uk/product/hcs-home-cinema-receiver/str-dh520 - Sony website with user manual for this amp. http://www.richersounds.com/product/av-receivers/sony/strdh520/sony-strdh520-blk - link to buy on RicherSounds website for £79.95 as its not available on Amazon at the moment (great price, it was £160 when I bought it) Good luck with your research on this product, it is definately a cool piece of equipment...you're doing the right thing looking into it before buying as a lot of these products can be very costly and quite confusing to set up. If you do decide to purchase this one and you find yourself having any troubles getting set up, there is a leaflet inside the box that the amp comes in with Sony's customer support number. Hope this helped, thanks :) Grant.
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